 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| H8S/2345 Series H8S/2345, H8S/2344, H8S/2343, H8S/2341, H8S/2340 H8S/2345 F-ZTATTM Hardware Manual ADE-602-129A Rev. 2.0 1/12/98 Hitachi, Ltd. Cautions 1. Hitachi neither warrants nor grants licenses of any rights of Hitachi's or any third party's patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party's rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However, contact Hitachi's sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as fail-safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product. 5. This product is not designed to be radiation resistant. 6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. 7. Contact Hitachi's sales office for any questions regarding this document or Hitachi semiconductor products. Main Amendments and Additions in this Edition Page Item Revision Throughout * H8S/2344, H8S/2341, and H8S/2340 added; F-ZTAT version of current H8S/2345 added. Generic name adopted: H8S/2345 Series, H8S/2345 F-ZTAT Hardware Manual. * Notes added where necessary indicating that the H8S/2340 is a ROMless version, and only supports MCU operating modes 1, 4, and 5. * Notes added where necessary indicating that the H8S/2345 F-ZTAT version only supports MCU operating modes 4 to 7, 10, 11, 14, and 15 (and that modes 1 to 3 (normal modes) cannot be used). * Notes added where necessary indicating that the FWE pin applies only to the FZTAT version, and that this pin is WDTOVF in the ZTAT, mask ROM, and ROMless versions. * Notes added where necessary indicating that the TFP-100G package is under development. 1 to 5 9 to 13 1.1 Overview Table 1.2 Pin Functions in Each Operating Mode Amended (Information on newly added products) Amended * PROM mode pin names partially changed * Flash memory mode pin names added 14 to 20 Table 1.3 Pin Functions Amended * Addition of F-ZTAT version operating mode settings by pins MD2-MD0 * FWE pin description added 69 to 72 74 76 76, 77 78 3.1 Overview System Control Register 2 (SYSCR2) (FZTAT Version Only) 3.3.7 Mode 7 3.3.8 Mode 8 to 3.3.13 Mode 15 Table 3.3 Pin Functions in Each Mode Amended (Description of F-ZTAT and ROMless versions added) New Note 2 amended New Amended (Mode 10, 11, 14, and 15 pin descriptions added) 79 to 90 107 141 3.5 Memory Map in Each Operating Mode Amended (Information on newly added products) Table 5.3 Correspondence between Interrupt Sources and IPR Settings 6.2.5 Bus Control Register L (BCRL) Note amended Description of bit 5 amended Page 160 273 Item Figure 6.14 Example of Wait Insertion Timing 8.12.2 Register Configuration, Port G Data Direction Register (PGDDR) Revision Amended Description amended Amended (Register name added to tables) Description of bit 3 amended Amendments to some Error column entries (values not entered for error of 3% or above) 294 to 309 9.2.3 Timer I/O Control Register (TIOR) 420 12.2.5 Serial Mode Register (SMR) 429 to 431 Table 12.3 BRR Settings for Various Bit Rates (Asynchronous Mode) 441 Figure 12.2 Data Format in Asynchronous Amended Communication (Example with 8-Bit Data, Parity, Two Stop Bits) Figure 12.15 Sample SCI Initialization Flowchart Note added 461 467 Figure 12.20 Sample Flowchart of Note amended Simultaneous Serial Transmit and Receive Operations 13.2.2 Serial Status Register (SSR) 13.2.4 Serial Control Register (SCR) Description of bits 4 and 2 amended Description of bits 1 and 0 amended 478, 479 481 483 484 488, 489 Figure 13.2 Schematic Diagram of Smart Amended Card Interface Pin Connections Figure 13.3 Smart Card Interface Data Format Amended Table 13.5 Examples of Bit Rate B (bit/s) Amended (o = 20.00 MHz column added) for Various BRR Settings (When n = 0) Table 13.6 Examples of BRR Settings for Bit Rate B (bit/s) (When n = 0) 491 to 493 13.3.6 Data Transfer Operations, Serial Amended Data Transmission 497, 498 13.3.7 Operation in GSM Mode Amended (Old section 13.3.7, Example of Use in Software Standby Mode, replaced with new section) Description of bits 7 and 6 amended (1) Amendment of setting range for analog power supply pins etc. (2) Deletion of module stop mode interrupts 529 532 15.2.2 D/A Control Register (DACR) 15.4 Usage Notes Bit 5 description amended New 510 14.2.3 A/D Control Register (ADCR) 519 to 524 14.6 Usage Notes Page 533 534 535 Whole of section 17 Whole of section 20 Item 16.1 Overview Figure 16.1 Block Diagram of RAM (H8S/2345, Advanced Mode) 16.3 Operation Section 17 ROM Revision Description amended (Information on newly added products) Title of figure amended Description amended (Information on newly added products) New flash memory description added, complete revision of section contents and layout Section 20 Electrical Characteristics Previous text used as electrical characteristics for ZTAT, mask ROM, and ROMless versions; new F-ZTAT version electrical characteristics added. "Preliminary" notation deleted and "TBD" replaced with values for ZTAT, mask ROM, and ROMless versions. 666 669 675 Figure 20.9 Reset Input Timing Figure 20.12 Basic Bus Timing (ThreeState Access) Figure 20.24 SCK Clock Input Timing Amended Amended (t WDS specification) Amended (t SCKW specification) Amended (Replaced with latest version) Amended (Addition of registers used by FZTAT version) Amended * Addition of registers used by F-ZTAT version * Amendment of note on interrupt priority registers A-K 677 to 752 Appendix A Instruction Set 753 to 759 B.1 Addresses 760 to 858 B.2 Functions 893 Table F.1 H8S/2345 Series Product Code Amended (Information on newly added Lineup products) Preface The H8S/2345 Series is a series of high-performance microcontrollers with a 32-bit H8S/2000 CPU core, and a set of on-chip supporting functions required for system configuration. The H8S/2000 CPU can execute basic instructions in one state, and is provided with sixteen 16-bit general registers with a 32-bit internal configuration, and a concise and optimized instruction set. The CPU can handle a 16 Mbyte linear address space (architecturally 4 Gbytes). Programs based on the high-level language C can also be run efficiently. The address space is divided into eight areas. The data bus width and access states can be selected for each of these areas, and various kinds of memory can be connected fast and easily. On-chip memory consists of large-capacity ROM and RAM. With regard to on-chip ROM*1, single power supply flash memory (F-ZTATTM*2), PROM (ZTATTM*2), and mask ROM versions are available, providing a quick and flexible response to conditions from ramp-up through fullscale volume production, even for applications with frequently changing specifications. On-chip supporting functions include a 16-bit timer pulse unit (TPU), 8-bit timers, watchdog timer (WDT), serial communication interface (SCI), A/D converter, D/A converter, and I/O ports. An on-chip data transfer controller (DTC) is also provided, enabling high-speed data transfer without CPU intervention. Use of the H8S/2345 Series enables compact, high-performance systems to be implemented easily. This manual describes the hardware of the H8S/2345 Series. Refer to the H8S/2600 Series and H8S/2000 Series Programming Manual for a detailed description of the instruction set. Notes: 1. The H8S/2345, H8S/2344, H8S/2343, and H8S/2341 have on-chip ROM. The H8S/2340 does not have on-chip ROM. 2. F-ZTAT (Flexible-ZTAT) is a trademark of Hitachi, Ltd. ZTAT is a trademark of Hitachi, Ltd. Contents Section 1 1.1 1.2 1.3 Overview ........................................................................................................... Overview............................................................................................................................ Block Diagram................................................................................................................... Pin Description .................................................................................................................. 1.3.1 Pin Arrangement .................................................................................................. 1.3.2 Pin Functions in Each Operating Mode................................................................ 1.3.3 Pin Functions........................................................................................................ 1 1 6 7 7 9 14 Section 2 2.1 CPU..................................................................................................................... 21 21 21 22 23 23 24 29 30 30 31 32 34 35 35 37 38 38 39 41 51 52 52 55 59 59 60 61 64 64 64 i 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Overview............................................................................................................................ 2.1.1 Features ................................................................................................................ 2.1.2 Differences between H8S/2600 CPU and H8S/2000 CPU .................................. 2.1.3 Differences from H8/300 CPU............................................................................. 2.1.4 Differences from H8/300H CPU.......................................................................... CPU Operating Modes ...................................................................................................... Address Space.................................................................................................................... Register Configuration ...................................................................................................... 2.4.1 Overview .............................................................................................................. 2.4.2 General Registers.................................................................................................. 2.4.3 Control Registers.................................................................................................. 2.4.4 Initial Register Values .......................................................................................... Data Formats...................................................................................................................... 2.5.1 General Register Data Formats ............................................................................ 2.5.2 Memory Data Formats.......................................................................................... Instruction Set.................................................................................................................... 2.6.1 Overview .............................................................................................................. 2.6.2 Instructions and Addressing Modes ..................................................................... 2.6.3 Table of Instructions Classified by Function........................................................ 2.6.4 Basic Instruction Formats..................................................................................... Addressing Modes and Effective Address Calculation ..................................................... 2.7.1 Addressing Mode.................................................................................................. 2.7.2 Effective Address Calculation.............................................................................. Processing States ............................................................................................................... 2.8.1 Overview .............................................................................................................. 2.8.2 Reset State ............................................................................................................ 2.8.3 Exception-Handling State .................................................................................... 2.8.4 Program Execution State ...................................................................................... 2.8.5 Bus-Released State ............................................................................................... 2.8.6 Power-Down State................................................................................................ 2.9 Basic Timing...................................................................................................................... 2.9.1 Overview .............................................................................................................. 2.9.2 On-Chip Memory (ROM, RAM) ......................................................................... 2.9.3 On-Chip Supporting Module Access Timing....................................................... 2.9.4 External Address Space Access Timing............................................................... 65 65 65 67 68 69 69 69 70 72 72 72 73 74 75 75 75 75 75 76 76 76 76 77 77 77 77 77 78 79 Section 3 3.1 3.2 3.3 3.4 3.5 MCU Operating Modes ................................................................................ Overview............................................................................................................................ 3.1.1 Operating Mode Selection (F-ZTATTM Version)................................................. 3.1.2 Operating Mode Selection (ZTAT, Mask ROM, and No On-Chip ROM Versions) .............................................................................................................. 3.1.3 Register Configuration ......................................................................................... Register Descriptions......................................................................................................... 3.2.1 Mode Control Register (MDCR).......................................................................... 3.2.2 System Control Register (SYSCR) ...................................................................... 3.2.3 System Control Register 2 (SYSCR2) (F-ZTAT Version Only) ......................... Operating Mode Descriptions............................................................................................ 3.3.1 Mode 1 (ZTAT, Mask ROM, and No On-Chip ROM Versions Only)................ 3.3.2 Mode 2*1 (ZTAT and Mask ROM Versions Only).............................................. 3.3.3 Mode 3*1 (ZTAT and Mask ROM Versions Only).............................................. 3.3.4 Mode 4*2 .............................................................................................................. 3.3.5 Mode 5*2 .............................................................................................................. 3.3.6 Mode 6*1 .............................................................................................................. 3.3.7 Mode 7*1 .............................................................................................................. 3.3.8 Modes 8 and 9 (F-ZTAT Version Only) .............................................................. 3.3.9 Mode 10 (F-ZTAT Version Only)........................................................................ 3.3.10 Mode 11 (F-ZTAT Version Only)........................................................................ 3.3.11 Modes 12 and 13 (F-ZTAT Version Only) .......................................................... 3.3.12 Mode 14 (F-ZTAT Version Only)........................................................................ 3.3.13 Mode 15 (F-ZTAT Version Only)........................................................................ Pin Functions in Each Operating Mode............................................................................. Memory Map in Each Operating Mode............................................................................. Section 4 4.1 4.2 Exception Handling........................................................................................ 91 Overview............................................................................................................................ 91 4.1.1 Exception Handling Types and Priority ............................................................... 91 4.1.2 Exception Handling Operation ............................................................................. 92 4.1.3 Exception Vector Table........................................................................................ 92 Reset .................................................................................................................................. 94 4.2.1 Overview .............................................................................................................. 94 4.2.2 Reset Types .......................................................................................................... 94 4.2.3 Reset Sequence..................................................................................................... 95 4.2.4 Interrupts after Reset ............................................................................................ 96 ii 4.3 4.4 4.5 4.6 4.7 4.2.5 State of On-Chip Supporting Modules after Reset Release ................................. Traces ................................................................................................................................ Interrupts............................................................................................................................ Trap Instruction ................................................................................................................. Stack Status after Exception Handling .............................................................................. Notes on Use of the Stack.................................................................................................. 96 97 98 99 100 101 Section 5 5.1 Interrupt Controller ........................................................................................ 103 103 103 104 105 105 106 106 107 108 109 110 111 111 112 112 116 116 119 121 123 125 126 126 127 127 127 128 128 128 129 5.2 5.3 5.4 5.5 5.6 Overview............................................................................................................................ 5.1.1 Features ................................................................................................................ 5.1.2 Block Diagram...................................................................................................... 5.1.3 Pin Configuration ................................................................................................. 5.1.4 Register Configuration ......................................................................................... Register Descriptions......................................................................................................... 5.2.1 System Control Register (SYSCR) ..................................................................... 5.2.2 Interrupt Priority Registers A to K (IPRA to IPRK) ............................................ 5.2.3 IRQ Enable Register (IER) .................................................................................. 5.2.4 IRQ Sense Control Registers H and L (ISCRH, ISCRL)..................................... 5.2.5 IRQ Status Register (ISR) .................................................................................... Interrupt Sources................................................................................................................ 5.3.1 External Interrupts................................................................................................ 5.3.2 Internal Interrupts ................................................................................................. 5.3.3 Interrupt Exception Handling Vector Table ......................................................... Interrupt Operation ............................................................................................................ 5.4.1 Interrupt Control Modes and Interrupt Operation ................................................ 5.4.2 Interrupt Control Mode 0...................................................................................... 5.4.3 Interrupt Control Mode 2...................................................................................... 5.4.4 Interrupt Exception Handling Sequence .............................................................. 5.4.5 Interrupt Response Times..................................................................................... Usage Notes ....................................................................................................................... 5.5.1 Contention between Interrupt Generation and Disabling..................................... 5.5.2 Instructions that Disable Interrupts ...................................................................... 5.5.3 Times when Interrupts are Disabled..................................................................... 5.5.4 Interrupts during Execution of EEPMOV Instruction.......................................... DTC Activation by Interrupt ............................................................................................. 5.6.1 Overview .............................................................................................................. 5.6.2 Block Diagram...................................................................................................... 5.6.3 Operation .............................................................................................................. Section 6 6.1 Bus Controller.................................................................................................. 131 Overview............................................................................................................................ 131 6.1.1 Features ................................................................................................................ 131 6.1.2 Block Diagram...................................................................................................... 132 iii 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.1.3 Pin Configuration ................................................................................................. 6.1.4 Register Configuration ......................................................................................... Register Descriptions......................................................................................................... 6.2.1 Bus Width Control Register (ABWCR) ............................................................... 6.2.2 Access State Control Register (ASTCR).............................................................. 6.2.3 Wait Control Registers H and L (WCRH, WCRL).............................................. 6.2.4 Bus Control Register H (BCRH).......................................................................... 6.2.5 Bus Control Register L (BCRL)........................................................................... Overview of Bus Control................................................................................................... 6.3.1 Area Partitioning .................................................................................................. 6.3.2 Bus Specifications ................................................................................................ 6.3.3 Memory Interfaces................................................................................................ 6.3.4 Advanced Mode.................................................................................................... 6.3.5 Areas in Normal Mode (ZTAT, Mask ROM, and No On-Chip ROM Versions Only)...................................................................................................... 6.3.6 Chip Select Signals............................................................................................... Basic Bus Interface............................................................................................................ 6.4.1 Overview .............................................................................................................. 6.4.2 Data Size and Data Alignment ............................................................................. 6.4.3 Valid Strobes ........................................................................................................ 6.4.4 Basic Timing ........................................................................................................ 6.4.5 Wait Control ......................................................................................................... Burst ROM Interface ......................................................................................................... 6.5.1 Overview .............................................................................................................. 6.5.2 Basic Timing ........................................................................................................ 6.5.3 Wait Control ......................................................................................................... Idle Cycle........................................................................................................................... 6.6.1 Operation .............................................................................................................. 6.6.2 Pin States in Idle Cycle ........................................................................................ Bus Release........................................................................................................................ 6.7.1 Overview .............................................................................................................. 6.7.2 Operation .............................................................................................................. 6.7.3 Pin States in External Bus Released State............................................................ 6.7.4 Transition Timing................................................................................................. 6.7.5 Usage Note ........................................................................................................... Bus Arbitration .................................................................................................................. 6.8.1 Overview .............................................................................................................. 6.8.2 Operation .............................................................................................................. 6.8.3 Bus Transfer Timing ............................................................................................ 6.8.4 External Bus Release Usage Note ........................................................................ Resets and the Bus Controller............................................................................................ 133 133 134 134 135 136 139 141 142 142 144 145 145 146 147 148 148 148 150 151 159 161 161 161 163 164 164 167 167 167 167 168 169 170 170 170 170 171 171 171 iv Section 7 7.1 7.2 7.3 7.4 7.5 Data Transfer Controller .............................................................................. Overview............................................................................................................................ 7.1.1 Features ................................................................................................................ 7.1.2 Block Diagram...................................................................................................... 7.1.3 Register Configuration ......................................................................................... Register Descriptions......................................................................................................... 7.2.1 DTC Mode Register A (MRA)............................................................................. 7.2.2 DTC Mode Register B (MRB) ............................................................................. 7.2.3 DTC Source Address Register (SAR) .................................................................. 7.2.4 DTC Destination Address Register (DAR) .......................................................... 7.2.5 DTC Transfer Count Register A (CRA) .............................................................. 7.2.6 DTC Transfer Count Register B (CRB) ............................................................... 7.2.7 DTC Enable Registers (DTCER) ......................................................................... 7.2.8 DTC Vector Register (DTVECR) ........................................................................ 7.2.9 Module Stop Control Register (MSTPCR) .......................................................... Operation ........................................................................................................................... 7.3.1 Overview .............................................................................................................. 7.3.2 Activation Sources................................................................................................ 7.3.3 DTC Vector Table ................................................................................................ 7.3.4 Location of Register Information in Address Space ............................................ 7.3.5 Normal Mode........................................................................................................ 7.3.6 Repeat Mode ........................................................................................................ 7.3.7 Block Transfer Mode............................................................................................ 7.3.8 Chain Transfer...................................................................................................... 7.3.9 Operation Timing ................................................................................................. 7.3.10 Number of DTC Execution States........................................................................ 7.3.11 Procedures for Using DTC ................................................................................... 7.3.12 Examples of Use of the DTC................................................................................ Interrupts............................................................................................................................ Usage Notes ....................................................................................................................... 173 173 173 174 175 176 176 178 179 179 179 180 180 181 182 183 183 185 186 189 190 191 192 194 195 196 198 199 201 201 Section 8 8.1 8.2 I/O Ports ............................................................................................................ 203 203 208 208 209 210 219 219 219 221 230 230 v 8.3 8.4 Overview............................................................................................................................ Port 1.................................................................................................................................. 8.2.1 Overview .............................................................................................................. 8.2.2 Register Configuration ......................................................................................... 8.2.3 Pin Functions........................................................................................................ Port 2.................................................................................................................................. 8.3.1 Overview .............................................................................................................. 8.3.2 Register Configuration ......................................................................................... 8.3.3 Pin Functions........................................................................................................ Port 3.................................................................................................................................. 8.4.1 Overview .............................................................................................................. 8.4.2 Register Configuration ......................................................................................... 8.4.3 Pin Functions........................................................................................................ 8.5 Port 4.................................................................................................................................. 8.5.1 Overview .............................................................................................................. 8.5.2 Register Configuration ......................................................................................... 8.5.3 Pin Functions........................................................................................................ 8.6 Port A................................................................................................................................. 8.6.1 Overview .............................................................................................................. 8.6.2 Register Configuration ......................................................................................... 8.6.3 Pin Functions........................................................................................................ 8.6.4 MOS Input Pull-Up Function ............................................................................... 8.7 Port B ................................................................................................................................. 8.7.1 Overview .............................................................................................................. 8.7.2 Register Configuration ......................................................................................... 8.7.3 Pin Functions........................................................................................................ 8.7.4 MOS Input Pull-Up Function ............................................................................... 8.8 Port C ................................................................................................................................. 8.8.1 Overview .............................................................................................................. 8.8.2 Register Configuration ......................................................................................... 8.8.3 Pin Functions........................................................................................................ 8.8.4 MOS Input Pull-Up Function ............................................................................... 8.9 Port D................................................................................................................................. 8.9.1 Overview .............................................................................................................. 8.9.2 Register Configuration ......................................................................................... 8.9.3 Pin Functions........................................................................................................ 8.9.4 MOS Input Pull-Up Function ............................................................................... 8.10 Port E ................................................................................................................................. 8.10.1 Overview .............................................................................................................. 8.10.2 Register Configuration ......................................................................................... 8.10.3 Pin Functions........................................................................................................ 8.10.4 MOS Input Pull-Up Function ............................................................................... 8.11 Port F ................................................................................................................................. 8.11.1 Overview .............................................................................................................. 8.11.2 Register Configuration ......................................................................................... 8.11.3 Pin Functions........................................................................................................ 8.12 Port G................................................................................................................................. 8.12.1 Overview .............................................................................................................. 8.12.2 Register Configuration ......................................................................................... 8.12.3 Pin Functions........................................................................................................ 230 233 235 235 236 236 237 237 238 241 242 243 243 244 246 248 249 249 250 252 254 255 255 256 258 259 260 260 261 263 264 265 265 266 269 271 271 272 275 Section 9 9.1 vi 16-Bit Timer Pulse Unit (TPU).................................................................. 277 Overview............................................................................................................................ 277 9.1.1 Features ................................................................................................................ 277 9.2 9.3 9.4 9.5 9.6 9.7 9.1.2 Block Diagram...................................................................................................... 9.1.3 Pin Configuration ................................................................................................. 9.1.4 Register Configuration ......................................................................................... Register Descriptions......................................................................................................... 9.2.1 Timer Control Register (TCR) ............................................................................. 9.2.2 Timer Mode Register (TMDR) ............................................................................ 9.2.3 Timer I/O Control Register (TIOR) ..................................................................... 9.2.4 Timer Interrupt Enable Register (TIER) .............................................................. 9.2.5 Timer Status Register (TSR) ................................................................................ 9.2.6 Timer Counter (TCNT) ........................................................................................ 9.2.7 Timer General Register (TGR) ............................................................................ 9.2.8 Timer Start Register (TSTR)................................................................................ 9.2.9 Timer Synchro Register (TSYR).......................................................................... 9.2.10 Module Stop Control Register (MSTPCR) .......................................................... Interface to Bus Master...................................................................................................... 9.3.1 16-Bit Registers.................................................................................................... 9.3.2 8-Bit Registers...................................................................................................... Operation ........................................................................................................................... 9.4.1 Overview .............................................................................................................. 9.4.2 Basic Functions .................................................................................................... 9.4.3 Synchronous Operation ........................................................................................ 9.4.4 Buffer Operation .................................................................................................. 9.4.5 Cascaded Operation.............................................................................................. 9.4.6 PWM Modes ........................................................................................................ 9.4.7 Phase Counting Mode .......................................................................................... Interrupts............................................................................................................................ 9.5.1 Interrupt Sources and Priorities............................................................................ 9.5.2 DTC Activation .................................................................................................... 9.5.3 A/D Converter Activation .................................................................................... Operation Timing .............................................................................................................. 9.6.1 Input/Output Timing ............................................................................................ 9.6.2 Interrupt Signal Timing ........................................................................................ Usage Notes ....................................................................................................................... 281 282 284 286 286 291 293 310 313 316 317 318 319 320 321 321 321 323 323 324 330 332 336 338 343 349 349 351 351 352 352 356 360 Section 10 8-Bit Timers ..................................................................................................... 371 10.1 Overview............................................................................................................................ 10.1.1 Features ................................................................................................................ 10.1.2 Block Diagram...................................................................................................... 10.1.3 Pin Configuration ................................................................................................. 10.1.4 Register Configuration ......................................................................................... 10.2 Register Descriptions......................................................................................................... 10.2.1 Timer Counters 0 and 1 (TCNT0, TCNT1).......................................................... 10.2.2 Time Constant Registers A0 and A1 (TCORA0, TCORA1) ............................... 371 371 372 373 373 374 374 374 vii 10.3 10.4 10.5 10.6 10.2.3 Time Constant Registers B0 and B1 (TCORB0, TCORB1)................................ 10.2.4 Time Control Registers 0 and 1 (TCR0, TCR1) .................................................. 10.2.5 Timer Control/Status Registers 0 and 1 (TCSR0, TCSR1).................................. 10.2.6 Module Stop Control Register (MSTPCR) .......................................................... Operation ........................................................................................................................... 10.3.1 TCNT Incrementation Timing.............................................................................. 10.3.2 Compare Match Timing ....................................................................................... 10.3.3 Timing of External RESET on TCNT.................................................................. 10.3.4 Timing of Overflow Flag (OVF) Setting.............................................................. 10.3.5 Operation with Cascaded Connection .................................................................. Interrupts............................................................................................................................ 10.4.1 Interrupt Sources and DTC Activation................................................................. 10.4.2 A/D Converter Activation .................................................................................... Sample Application ........................................................................................................... Usage Notes ....................................................................................................................... 10.6.1 Contention between TCNT Write and Clear........................................................ 10.6.2 Contention between TCNT Write and Increment ................................................ 10.6.3 Contention between TCOR Write and Compare Match ...................................... 10.6.4 Contention between Compare Matches A and B ................................................. 10.6.5 Switching of Internal Clocks and TCNT Operation............................................. 10.6.6 Usage Note ........................................................................................................... 375 375 377 380 381 381 382 384 384 385 386 386 386 387 388 388 389 390 391 391 393 Section 11 Watchdog Timer ............................................................................................. 395 11.1 Overview............................................................................................................................ 11.1.1 Features ................................................................................................................ 11.1.2 Block Diagram...................................................................................................... 11.1.3 Pin Configuration ................................................................................................. 11.1.4 Register Configuration ......................................................................................... 11.2 Register Descriptions......................................................................................................... 11.2.1 Timer Counter (TCNT) ........................................................................................ 11.2.2 Timer Control/Status Register (TCSR)................................................................ 11.2.3 Reset Control/Status Register (RSTCSR) ............................................................ 11.2.4 Notes on Register Access ..................................................................................... 11.3 Operation ........................................................................................................................... 11.3.1 Watchdog Timer Operation.................................................................................. 11.3.2 Interval Timer Operation...................................................................................... 11.3.3 Timing of Setting Overflow Flag (OVF).............................................................. 11.3.4 Timing of Setting of Watchdog Timer Overflow Flag (WOVF) ......................... 11.4 Interrupts............................................................................................................................ 11.5 Usage Notes ....................................................................................................................... 11.5.1 Contention between Timer Counter (TCNT) Write and Increment ..................... 11.5.2 Changing Value of CKS2 to CKS0...................................................................... 11.5.3 Switching between Watchdog Timer Mode and Interval Timer Mode................ viii 395 395 396 397 397 398 398 398 400 402 404 404 406 406 407 408 408 408 408 409 11.5.4 System Reset by WDTOVF Signal...................................................................... 409 11.5.5 Internal Reset in Watchdog Timer Mode ............................................................. 409 Section 12 Serial Communication Interface (SCI) .................................................... 411 12.1 Overview............................................................................................................................ 12.1.1 Features ................................................................................................................ 12.1.2 Block Diagram...................................................................................................... 12.1.3 Pin Configuration ................................................................................................. 12.1.4 Register Configuration ......................................................................................... 12.2 Register Descriptions......................................................................................................... 12.2.1 Receive Shift Register (RSR)............................................................................... 12.2.2 Receive Data Register (RDR) .............................................................................. 12.2.3 Transmit Shift Register (TSR).............................................................................. 12.2.4 Transmit Data Register (TDR) ............................................................................. 12.2.5 Serial Mode Register (SMR)................................................................................ 12.2.6 Serial Control Register (SCR).............................................................................. 12.2.7 Serial Status Register (SSR)................................................................................. 12.2.8 Bit Rate Register (BRR)....................................................................................... 12.2.9 Smart Card Mode Register (SCMR) .................................................................... 12.2.10 Module Stop Control Register (MSTPCR) .......................................................... 12.3 Operation ........................................................................................................................... 12.3.1 Overview .............................................................................................................. 12.3.2 Operation in Asynchronous Mode........................................................................ 12.3.3 Multiprocessor Communication Function............................................................ 12.3.4 Operation in Clocked Synchronous Mode ........................................................... 12.4 SCI Interrupts .................................................................................................................... 12.5 Usage Notes ....................................................................................................................... 411 411 413 414 415 416 416 416 417 417 418 421 425 428 437 438 439 439 441 452 460 468 469 Section 13 Smart Card Interface...................................................................................... 473 13.1 Overview............................................................................................................................ 13.1.1 Features ................................................................................................................ 13.1.2 Block Diagram...................................................................................................... 13.1.3 Pin Configuration ................................................................................................. 13.1.4 Register Configuration ......................................................................................... 13.2 Register Descriptions......................................................................................................... 13.2.1 Smart Card Mode Register (SCMR) .................................................................... 13.2.2 Serial Status Register (SSR)................................................................................. 13.2.3 Serial Mode Register (SMR)................................................................................ 13.2.4 Serial Control Register (SCR).............................................................................. 13.3 Operation ........................................................................................................................... 13.3.1 Overview .............................................................................................................. 13.3.2 Pin Connections.................................................................................................... 13.3.3 Data Format.......................................................................................................... 473 473 474 475 476 477 477 478 480 481 482 482 482 484 ix 13.3.4 Register Settings................................................................................................... 13.3.5 Clock .................................................................................................................... 13.3.6 Data Transfer Operations ..................................................................................... 13.3.7 Operation in GSM Mode...................................................................................... 13.4 Usage Note ........................................................................................................................ 486 488 490 497 498 Section 14 A/D Converter ................................................................................................. 503 14.1 Overview............................................................................................................................ 14.1.1 Features ................................................................................................................ 14.1.2 Block Diagram...................................................................................................... 14.1.3 Pin Configuration ................................................................................................. 14.1.4 Register Configuration ......................................................................................... 14.2 Register Descriptions......................................................................................................... 14.2.1 A/D Data Registers A to D (ADDRA to ADDRD).............................................. 14.2.2 A/D Control/Status Register (ADCSR)................................................................ 14.2.3 A/D Control Register (ADCR)............................................................................. 14.2.4 Module Stop Control Register (MSTPCR) .......................................................... 14.3 Interface to Bus Master...................................................................................................... 14.4 Operation ........................................................................................................................... 14.4.1 Single Mode (SCAN = 0) ..................................................................................... 14.4.2 Scan Mode (SCAN = 1) ....................................................................................... 14.4.3 Input Sampling and A/D Conversion Time.......................................................... 14.4.4 External Trigger Input Timing ............................................................................. 14.5 Interrupts............................................................................................................................ 14.6 Usage Notes ....................................................................................................................... 503 503 504 505 506 507 507 508 510 511 512 513 513 515 517 518 519 519 Section 15 D/A Converter ................................................................................................. 525 15.1 Overview............................................................................................................................ 15.1.1 Features ................................................................................................................ 15.1.2 Block Diagram...................................................................................................... 15.1.3 Pin Configuration ................................................................................................. 15.1.4 Register Configuration ......................................................................................... 15.2 Register Descriptions......................................................................................................... 15.2.1 D/A Data Registers 0 and 1 (DADR0, DADR1).................................................. 15.2.2 D/A Control Register (DACR)............................................................................. 15.2.3 Module Stop Control Register (MSTPCR) .......................................................... 15.3 Operation ........................................................................................................................... 15.4 Usage Notes ....................................................................................................................... 525 525 526 527 527 528 528 528 530 531 532 Section 16 RAM ................................................................................................................... 533 16.1 Overview............................................................................................................................ 533 16.1.1 Block Diagram...................................................................................................... 534 16.1.2 Register Configuration ......................................................................................... 534 x 16.2 Register Descriptions......................................................................................................... 16.2.1 System Control Register (SYSCR) ...................................................................... 16.3 Operation ........................................................................................................................... 16.4 Usage Note ........................................................................................................................ 535 535 535 535 Section 17 ROM ................................................................................................................... 537 17.1 Overview .............................................................................................................................. 17.1.1 Block Diagram........................................................................................................ 17.1.2 Register Configuration............................................................................................ 17.2 Register Descriptions............................................................................................................ 17.2.1 Mode Control Register (MDCR)............................................................................ 17.2.2 Bus Control Register L (BCRL) ............................................................................. 17.3 Operation .............................................................................................................................. 17.4 PROM Mode ........................................................................................................................ 17.4.1 PROM Mode Setting .............................................................................................. 17.4.2 Socket Adapter and Memory Map.......................................................................... 17.5 Programming........................................................................................................................ 17.5.1 Overview ................................................................................................................ 17.5.2 Programming and Verification ............................................................................... 17.5.3 Programming Precautions ...................................................................................... 17.5.4 Reliability of Programmed Data............................................................................. 17.6 Overview of Flash Memory.................................................................................................. 17.6.1 Features................................................................................................................... 17.6.2 Block Diagram........................................................................................................ 17.6.3 Flash Memory Operating Modes............................................................................ 17.6.4 Pin Configuration.................................................................................................... 17.6.5 Register Configuration............................................................................................ 17.7 Register Descriptions............................................................................................................ 17.7.1 Flash Memory Control Register 1 (FLMCR1) ....................................................... 17.7.2 Flash Memory Control Register 2 (FLMCR2) ....................................................... 17.7.3 Erase Block Registers 1 and 2 (EBR1, EBR2) ....................................................... 17.7.4 System Control Register 2 (SYSCR2).................................................................... 17.7.5 RAM Emulation Register (RAMER) ..................................................................... 17.8 On-Board Programming Modes ........................................................................................... 17.8.1 Boot Mode .............................................................................................................. 17.8.2 User Program Mode................................................................................................ 17.9 Programming/Erasing Flash Memory .................................................................................. 17.9.1 Program Mode -- Preliminary -- .......................................................................... 17.9.2 Program-Verify Mode -- Preliminary -- .............................................................. 17.9.3 Erase Mode -- Preliminary -- ............................................................................... 17.9.4 Erase-Verify Mode -- Preliminary -- ................................................................... 17.10 Flash Memory Protection ................................................................................................... 17.10.1 Hardware Protection ............................................................................................. 537 537 538 538 538 539 539 542 542 542 545 545 545 549 550 551 551 552 553 558 559 560 560 563 564 565 566 568 569 573 575 576 577 579 579 581 581 xi 17.10.2 Software Protection .............................................................................................. 17.10.3 Error Protection .................................................................................................... 17.11 Flash Memory Emulation in RAM..................................................................................... 17.11.1 Emulation in RAM ............................................................................................... 17.11.2 RAM Overlap ....................................................................................................... 17.12 Interrupt Handling when Programming/Erasing Flash Memory........................................ 17.13 Flash Memory Writer Mode............................................................................................... 17.13.1 Writer Mode Setting ............................................................................................. 17.13.2 Socket Adapters and Memory Map...................................................................... 17.13.3 Writer Mode Operation ........................................................................................ 17.13.4 Memory Read Mode ............................................................................................. 17.13.5 Auto-Program Mode............................................................................................. 17.13.6 Auto-Erase Mode.................................................................................................. 17.13.7 Status Read Mode ................................................................................................. 17.13.8 Status Polling........................................................................................................ 17.13.9 Writer Mode Transition Time .............................................................................. 17.13.10 Notes On Memory Programming ....................................................................... 17.14 Flash Memory Programming and Erasing Precautions...................................................... 581 582 585 585 586 587 588 588 589 590 592 596 598 599 601 602 602 603 Section 18 Clock Pulse Generator .................................................................................. 609 18.1 Overview............................................................................................................................ 18.1.1 Block Diagram...................................................................................................... 18.1.2 Register Configuration ......................................................................................... 18.2 Register Descriptions......................................................................................................... 18.2.1 System Clock Control Register (SCKCR)............................................................ 18.3 Oscillator............................................................................................................................ 18.3.1 Connecting a Crystal Resonator ........................................................................... 18.3.2 External Clock Input ............................................................................................ 18.4 Duty Adjustment Circuit.................................................................................................... 18.5 Medium-Speed Clock Divider........................................................................................... 18.6 Bus Master Clock Selection Circuit .................................................................................. 609 609 609 610 610 611 611 613 615 615 615 Section 19 Power-Down Modes ...................................................................................... 617 19.1 Overview .............................................................................................................................. 19.1.1 Register Configuration............................................................................................ 19.2 Register Descriptions............................................................................................................ 19.2.1 Standby Control Register (SBYCR)....................................................................... 19.2.2 System Clock Control Register (SCKCR).............................................................. 19.2.3 Module Stop Control Register (MSTPCR) ............................................................ 19.3 Medium-Speed Mode ........................................................................................................... 19.4 Sleep Mode........................................................................................................................... 19.5 Module Stop Mode ............................................................................................................... 19.5.1 Module Stop Mode ................................................................................................. xii 617 618 619 619 620 621 622 623 623 623 19.5.2 Usage Notes............................................................................................................ 19.6 Software Standby Mode ....................................................................................................... 19.6.1 Software Standby Mode ......................................................................................... 19.6.2 Clearing Software Standby Mode .......................................................................... 19.6.3 Setting Oscillation Stabilization Time after Clearing Software Standby Mode..... 19.6.4 Software Standby Mode Application Example ...................................................... 19.6.5 Usage Notes............................................................................................................ 19.7 Hardware Standby Mode...................................................................................................... 19.7.1 Hardware Standby Mode........................................................................................ 19.7.2 Hardware Standby Mode Timing ........................................................................... 19.8 o Clock Output Disabling Function...................................................................................... 624 625 625 625 626 626 627 628 628 628 629 Section 20 Electrical Characteristics.............................................................................. 631 20.1 Electrical Characteristics of F-ZTAT Version .................................................................. 20.1.1 Absolute Maximum Ratings................................................................................. 20.1.2 DC Characteristics................................................................................................ 20.1.3 AC Characteristics................................................................................................ 20.1.4 A/D Conversion Characteristics ........................................................................... 20.1.5 D/A Conversion Characteristics ........................................................................... 20.1.6 Flash Memory Characteristics.............................................................................. 20.2 Electrical Characteristics of ZTAT, Mask ROM, and No On-chip ROM Versions.......... 20.2.1 Absolute Maximum Ratings................................................................................. 20.2.2 DC Characteristics................................................................................................ 20.2.3 AC Characteristics................................................................................................ 20.2.4 A/D Conversion Characteristics ........................................................................... 20.2.5 D/A Conversion Characteristics ........................................................................... 20.3 Operation Timing .............................................................................................................. 20.3.1 Clock Timing........................................................................................................ 20.3.2 Control Signal Timing.......................................................................................... 20.3.3 Bus Timing ........................................................................................................... 20.3.4 Timing for On-Chip Supporting Modules............................................................ 20.4 Usage Note ........................................................................................................................ 631 631 632 639 646 647 648 650 650 651 656 663 664 665 665 666 667 673 676 Appendix A Instruction Set.............................................................................................. 677 A.1 A.2 A.3 A.4 A.5 A.6 Instruction List................................................................................................................... Instruction Codes ............................................................................................................... Operation Code Map.......................................................................................................... Number of States Required for Instruction Execution ...................................................... Bus States During Instruction Execution........................................................................... Condition Code Modification............................................................................................ 677 701 715 719 733 747 xiii Appendix B Internal I/O Register .................................................................................. 753 B.1 B.2 Addresses........................................................................................................................... 753 Functions............................................................................................................................ 760 Appendix C I/O Port Block Diagrams.......................................................................... 859 C.1 C.2 C.3 C.4 C.5 C.6 C.7 C.8 C.9 C.10 C.11 Port 1 Block Diagram........................................................................................................ Port 2 Block Diagram........................................................................................................ Port 3 Block Diagram........................................................................................................ Port 4 Block Diagram........................................................................................................ Port A Block Diagram ....................................................................................................... Port B Block Diagram ....................................................................................................... Port C Block Diagram ....................................................................................................... Port D Block Diagram ....................................................................................................... Port E Block Diagram........................................................................................................ Port F Block Diagram........................................................................................................ Port G Block Diagram ....................................................................................................... 859 863 867 870 871 872 873 874 875 876 884 Appendix D Pin States ....................................................................................................... 888 D.1 Port States in Each Mode .................................................................................................. 888 Appendix E Appendix F Timing of Transition to and Recovery from Hardware Standby Mode.............................................................................................. 892 Product Code Lineup ................................................................................. 893 Appendix G Package Dimensions.................................................................................. 894 xiv Section 1 Overview 1.1 Overview The H8S/2345 Series is a series of microcomputers (MCUs: microcomputer units), built around the H8S/2000 CPU, employing Hitachi's proprietary architecture, and equipped with peripheral functions on-chip. The H8S/2000 CPU has an internal 32-bit architecture, is provided with sixteen 16-bit general registers and a concise, optimized instruction set designed for high-speed operation, and can address a 16-Mbyte linear address space. The instruction set is upward-compatible with H8/300 and H8/300H CPU instructions at the object-code level, facilitating migration from the H8/300, H8/300L, or H8/300H Series. On-chip peripheral functions required for system configuration include data transfer controller (DTC) bus masters, ROM and RAM memory, a16-bit timer-pulse unit (TPU), 8-bit timer, watchdog timer (WDT), serial communication interface (SCI), A/D converter, D/A converter, and I/O ports. The on-chip ROM*1 is either single power supply flash memory (F-ZTATTM*2), PROM (ZTATTM *2), or mask ROM, with a capacity of 128, 96, 64, or 32 kbytes. ROM is connected to the CPU via a 16-bit data bus, enabling both byte and word data to be accessed in one state. Instruction fetching has been speeded up, and processing speed increased. Seven operating modes, modes 1 to 7, are provided, and there is a choice of address space and single-chip mode or external expansion mode. The features of the H8S/2345 Series are shown in Table 1.1. Notes: 1. The H8S/2345, H8S/2344, H8S/2343, and H8S/2341 have on-chip ROM. The H8S/2340 does not have on-chip ROM. 2. F-ZTATTM is a trademark of Hitachi, Ltd. ZTAT is a trademark of Hitachi, Ltd. 1 Table 1.1 Item CPU Overview Specification * General-register machine Sixteen 16-bit general registers (also usable as sixteen 8-bit registers or eight 32-bit registers) * High-speed operation suitable for realtime control Maximum clock rate: 20 MHz High-speed arithmetic operations 8/16/32-bit register-register add/subtract : 50 ns 16 x 16-bit register-register multiply : 1000 ns 32 / 16-bit register-register divide : 1000 ns * Instruction set suitable for high-speed operation Sixty-five basic instructions 8/16/32-bit move/arithmetic and logic instructions Unsigned/signed multiply and divide instructions Powerful bit-manipulation instructions * Two CPU operating modes Normal mode: 64-kbyte address space (ZTAT, mask ROM, and ROMless versions only) Advanced mode: 16-Mbyte address space Bus controller * * * * * * * Address space divided into 8 areas, with bus specifications settable independently for each area Chip select output possible for areas 0 to 3 Choice of 8-bit or 16-bit access space for each area 2-state or 3-state access space can be designated for each area Number of program wait states can be set for each area Burst ROM directly connectable External bus release function Can be activated by internal interrupt or software Multiple transfers or multiple types of transfer possible for one activation source Transfer is possible in repeat mode, block transfer mode, etc. Request can be sent to CPU for interrupt that activated DTC 6-channel 16-bit timer on-chip Pulse I/O processing capability for up to 16 pins' Automatic 2-phase encoder count capability Data transfer controller (DTC) * * * * 16-bit timer-pulse unit (TPU) * * * 2 Table 1.1 Item 8-bit timer 2 channels Overview (cont) Specification * * * * * * * * * * * * * 8-bit up-counter (external event count capability) Two time constant registers Two-channel connection possible Watchdog timer or interval timer selectable Asynchronous mode or synchronous mode selectable Multiprocessor communication function Smart card interface function Resolution: 10 bits Input: 8 channels High-speed conversion: 6.7 s minimum conversion time (at 20 MHz operation) Single or scan mode selectable Sample and hold circuit A/D conversion can be activated by external trigger or timer trigger Resolution: 8 bits Output: 2 channels 71 I/O pins, 8 input-only pins Flash memory, PROM, or mask ROM High-speed static RAM ROM 128 kbytes 96 kbytes 64 kbytes 32 kbytes -- RAM 4 kbytes 4 kbytes 2 kbytes 2 kbytes 2 kbytes Watchdog timer Serial communication interface (SCI) 2 channels A/D converter D/A converter * * * * * I/O ports Memory Product Name H8S/2345 H8S/2344 H8S/2343 H8S/2341 H8S/2340 Interrupt controller * * * Nine external interrupt pins (NMI, IRQ0 to IRQ7) 43 internal interrupt sources Eight priority levels settable 3 Table 1.1 Item Overview (cont) Specification * * * * * Medium-speed mode Sleep mode Module stop mode Software standby mode Hardware standby mode Eight MCU operating modes (F-ZTAT version) External Data Bus On-Chip Initial ROM Value -- -- Maximum Value -- Power-down state Operating modes * CPU Operating Mode Mode Description 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Advanced User-programmable mode -- -- Advanced Boot mode -- -- -- Advanced On-chip ROM disabled Disabled 16 bits expansion mode 8 bits On-chip ROM enabled expansion mode Single-chip mode -- -- Enabled 8 bits -- -- 16 bits 16 bits 16 bits -- -- Enabled 8 bits -- 16 bits -- -- -- -- Enabled 8 bits -- 16 bits -- 4 Table 1.1 Item Overview (cont) Specification * Seven MCU operating modes (ZTAT, mask ROM, and ROMless versions) External Data Bus On-Chip Initial ROM Value Maximum Value 16 bits 16 bits Operating modes CPU Operating Mode Mode Description 1 2* 3* 4 5 6* 7* * * * Product lineup Mask ROM Version HD6432345 HD6432344 HD6432343 HD6432341 HD6412340 (ROMless versions) Normal On-chip ROM disabled Disabled 8 bits expansion mode On-chip ROM enabled expansion mode Single-chip mode Enabled Enabled 8 bits -- Advanced On-chip ROM disabled Disabled 16 bits expansion mode On-chip ROM disabled Disabled 8 bits expansion mode On-chip ROM enabled expansion mode Single-chip mode Enabled Enabled 8 bits -- 16 bits 16 bits 16 bits Note: * Not used on ROMless versions. Clock pulse generator Packages Built-in duty correction circuit 100-pin plastic TQFP (TFP-100B, TFP-100G*) 100-pin plastic QFP (FP-100A, FP-100B) Model Name F-ZTATTM HD64F2345 -- -- -- -- ZTATTM HD6472345 -- -- -- -- ROM/RAM (Bytes) 128 k/4 k 96 k/4 k 64 k/2 k 32 k/2 k --/2 k Packages TFP-100B TFP-100G* FP-100A FP-100B Note: * TFP-100G is under development. 5 1.2 Block Diagram Figure 1.1 shows an internal block diagram of the H8S/2345 Series. PD7 /D15 PD6 /D14 PD5 /D13 PD4 /D12 PD3 /D11 PD2 /D10 PD1 /D9 PD0 /D8 Port D PE7 /D7 PE6 /D6 PE5 /D5 PE4 /D4 PE3 /D3 PE2 /D2 PE1 /D1 PE0 /D0 Port E H8S/2000 CPU Internal address bus Internal data bus Bus controller MD2 MD1 MD0 EXTAL XTAL STBY RES WDTOVF (FWE)*1 NMI VCC VCC VCC VSS VSS VSS VSS VSS VSS Clock pulse generator Port A PA3 /A19 PA2 /A18 PA1 /A17 PA0 /A16 Interrupt controller PF7 /o PF6 /AS PF5 /RD PF4 /HWR PF3 /LWR/ IRQ3 PF2 /WAIT/ IRQ2 PF1 /BACK/IRQ1 PF0 /BREQ/IRQ0 PG4 /CS0 PG3 /CS1 PG2 /CS2 PG1 /CS3/ IRQ7 PG0 /ADTRG/IRQ6 DTC ROM*2 Port F Peripheral address bus Port B Peripheral data bus PB7 /A15 PB6 /A14 PB5 /A13 PB4 /A12 PB3 / A11 PB2 /A10 PB1 /A9 PB0 /A8 PC7 /A7 PC6 /A6 PC5 /A5 PC4 /A4 PC3 /A3 PC2 /A2 PC1 /A1 PC0 /A0 P35 /SCK1/IRQ5 P34 /SCK0/IRQ4 P33 /RxD1 P32 /RxD0 P31 /TxD1 P30 /TxD0 Port C RAM Port G WDT 8-bit timer Port 3 SCI TPU D/A converter A/D converter Port 1 Port 2 Vref AVCC AVSS Port 4 P47 /AN7/DA1 P46 /AN6/DA0 P45 /AN5 P44 /AN4 P43 /AN3 P42 /AN2 P41 /AN1 P40 /AN0 P10 /TIOCA0/A 20 P11 /TIOCB0/A 21 P12 /TIOCC0/TCLKA/A22 P13 /TIOCD0/TCLKB/A23 P14 /TIOCA1 P15 /TIOCB1/TCLKC P16 /TIOCA2 P17 /TIOCB2/TCLKD Notes: 1. Functions as WDTOVF pin on ZTAT, mask ROM, and ROMless versions. Functions as FWE pin on F-ZTAT version, not as WDTOVF pin. 2. Not present on ROMless version. Figure 1.1 Block Diagram 6 P20 /TIOCA3 P21 /TIOCB3 P22 /TIOCC3 /TMRI0 P23 /TIOCD3 /TMCI0 P24 /TIOCA4 /TMRI1 P25 /TIOCB4 /TMCI1 P26 /TIOCA5 /TMO0 P27 /TIOCB5 /TMO1 1.3 1.3.1 Pin Description Pin Arrangement Figures 1.2 and 1.3 show the pin arrangement of the H8S/2345 Series. P23/TIOCD3/TMCI0 P22/TIOCC3/TMRI0 WDTOVF (FWE*) PF1/BACK/IRQ1 PF2/WAIT/IRQ2 PF3/LWR/IRQ3 P21/TIOCB3 P20/TIOCA3 PF4/HWR PA3/A19 53 PA2/A18 52 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 PF0/BREQ/IRQ0 AVCC Vref P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6/DA0 P47/AN7/DA1 AVSS VSS P24/TIOCA4/TMRI1 P25/TIOCB4/TMCI1 P26/TIOCA5/TMO0 P27/TIOCB5/TMO1 PG0/ADTRG/IRQ6 PG1/CS3/IRQ7 PG2/CS2 PG3/CS1 PG4/CS0 VCC P10/TIOCA0/A20 P11/TIOCB0/A21 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 1 2 3 4 5 6 7 8 9 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 PA1/A17 PF5/RD PF6/AS EXTAL PF7/o STBY XTAL RES MD2 MD1 MD0 VCC NMI VSS PA0/A16 VSS PB7/A15 PB6/A14 PB5/A13 PB4/A12 PB3/A11 PB2/A10 PB1/A9 PB0/A8 VCC PC7/A7 PC6/A6 PC5/A5 PC4/A4 PC3/A3 PC2/A2 PC1/A1 PC0/A0 VSS PD7/D15 PD6/D14 PD5/D13 PD4/D12 PD3/D11 P12/TIOCC0/TCLKA/A22 P13/TIOCD0/TCLKB/A23 VSS P34/SCK0/IRQ4 P15/TIOCB1/TCLKC P17/TIOCB2/TCLKD P35/SCK1/IRQ5 P14/TIOCA1 P16/TIOCA2 VSS P30/TxD0 P31/TxD1 P32/RxD0 Note: * Functions as WDTOVF pin on ZTAT, mask ROM, and ROMless versions. Functions as FWE pin on F-ZTAT version, not as WDTOVF pin. Figure 1.2 Pin Arrangement (FP-100B, TFP-100B, TFP-100G*: Top View) Note: TFP-100G is under development. 7 P33/RxD1 PD2/D10 PE0/D0 PE1/D1 PE2/D2 PE3/D3 PE4/D4 PE5/D5 PE6/D6 PE7/D7 PD0/D8 PD1/D9 8 P40/AN0 P41/AN1 P42/AN2 P43/AN3 P44/AN4 P45/AN5 P46/AN6/DA0 P47/AN7/DA1 AVSS VSS P24/TIOCA4/TMRI1 P25/TIOCB4/TMCI1 P26/TIOCA5/TMO0 P27/TIOCB5/TMO1 PG0/ADTRG/IRQ6 PG1/CS3/IRQ7 PG2/CS2 PG3/CS1 PG4/CS0 VCC 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Note: * Functions as WDTOVF pin on ZTAT, mask ROM, and ROMless versions. Functions as FWE pin on F-ZTAT version, not as WDTOVF pin. P10/TIOCA0/A20 P11/TIOCB0/A21 P12/TIOCC0/TCLKA/A22 P13/TIOCD0/TCLKB/A23 P14/TIOCA1 P15/TIOCB1/TCLKC P16/TIOCA2 P17/TIOCB2/TCLKD VSS P30/TxD0 P31/TxD1 P32/RxD0 P33/RxD1 P34/SCK0/IRQ4 P35/SCK1/IRQ5 PE0/D0 PE1/D1 PE2/D2 PE3/D3 VSS PE4/D4 PE5/D5 PE6/D6 PE7/D7 PD0/D8 PD1/D9 PD2/D10 PD3/D11 PD4/D12 PD5/D13 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 PB7/A15 PB6/A14 PB5/A13 PB4/A12 PB3/A11 PB2/A10 PB1/A9 PB0/A8 VCC PC7/A7 PC6/A6 PC5/A5 PC4/A4 PC3/A3 PC2/A2 PC1/A1 PC0/A0 VSS PD7/D15 PD6/D14 Figure 1.3 Pin Arrangement (FP-100A: Top View) Vref AVCC PF0/BREQ/IRQ0 PF1/BACK/IRQ1 PF2/WAIT/IRQ2 PF3/LWR/IRQ3 PF4/HWR PF5/RD PF6/AS PF7/o VSS EXTAL XTAL VCC STBY NMI RES MD2 WDTOVF (FWE*) P23/TIOCD3/TMCI0 MD1 MD0 P22/TIOCC3/TMRI0 P21/TIOCB3 P20/TIOCA3 PA3/A19 PA2/A18 PA1/A17 PA0/A16 VSS 1.3.2 Pin Functions in Each Operating Mode Table 1.2 shows the pin functions of the H8S/2345 Series in each of the operating modes. Table 1.2 Pin No. FP-100B, TFP-100B, TFP-100G FP-100A 1 3 Pin Functions in Each Operating Mode Pin Name Flash Memory Writer Mode*4 NC Mode 1 *1 P1 2/ TIOCC0/ TCLKA P1 3/ TIOCD0/ TCLKB P1 4/ TIOCA1 P1 5/ TIOCB1/ TCLKC P1 6/ TIOCA2 P1 7/ TIOCB2/ TCLKD V SS P3 0/TxD0 P3 1/TxD1 Mode 2*1, *2 P1 2/ TIOCC0/ TCLKA P1 3/ TIOCD0/ TCLKB P1 4/ TIOCA1 P1 5/ TIOCB1/ TCLKC P1 6/ TIOCA2 P1 7/ TIOCB2/ TCLKD V SS P3 0/TxD0 P3 1/TxD1 Mode 3*1, *2 P1 2/ TIOCC0/ TCLKA P1 3/ TIOCD0/ TCLKB P1 4/ TIOCA1 P1 5/ TIOCB1/ TCLKC P1 6/ TIOCA2 P1 7/ TIOCB2/ TCLKD V SS P3 0/TxD0 P3 1/TxD1 Mode 4 P1 2/ TIOCC0/ TCLKA/ A 22 P1 3/ TIOCD0/ TCLKB/ A 23 P1 4/ TIOCA1 P1 5/ TIOCB1/ TCLKC P1 6/ TIOCA2 P1 7/ TIOCB2/ TCLKD V SS P3 0/TxD0 P3 1/TxD1 Mode 5 P1 2/ TIOCC0/ TCLKA/ A 22 P1 3/ TIOCD0/ TCLKB/ A 23 P1 4/ TIOCA1 P1 5/ TIOCB1/ TCLKC P1 6/ TIOCA2 P1 7/ TIOCB2/ TCLKD V SS P3 0/TxD0 P3 1/TxD1 Mode 6*2 P1 2/ TIOCC0/ TCLKA/ A 22 P1 3/ TIOCD0/ TCLKB/ A 23 P1 4/ TIOCA1 P1 5/ TIOCB1/ TCLKC P1 6/ TIOCA2 P1 7/ TIOCB2/ TCLKD V SS P3 0/TxD0 P3 1/TxD1 Mode 7 *2 P1 2/ TIOCC0/ TCLKA P1 3/ TIOCD0/ TCLKB P1 4/ TIOCA1 P1 5/ TIOCB1/ TCLKC P1 6/ TIOCA2 P1 7/ TIOCB2/ TCLKD V SS P3 0/TxD0 P3 1/TxD1 PROM Mode*3 NC 2 4 NC NC 3 4 5 6 NC NC NC NC 5 6 7 8 NC NC NC NC 7 8 9 10 11 12 9 10 11 12 13 14 V SS NC NC V SS NC NC NC NC NC P3 2/RxD0 P3 2/RxD0 P3 2/RxD0 P3 2/RxD0 P3 2/RxD0 P3 2/RxD0 P3 2/RxD0 NC P3 3/RxD1 P3 3/RxD1 P3 3/RxD1 P3 3/RxD1 P3 3/RxD1 P3 3/RxD1 P3 3/RxD1 NC P3 4/ SCK0/ IRQ4 P3 5/ SCK1/ IRQ5 PE0/D0 PE1/D1 PE2/D2 PE3/D3 V SS PE4/D4 P3 4/ SCK0/ IRQ4 P3 5/ SCK1/ IRQ5 PE0/D0 PE1/D1 PE2/D2 PE3/D3 V SS PE4/D4 P3 4/ SCK0/ IRQ4 P3 5/ SCK1/ IRQ5 PE0 PE1 PE2 PE3 V SS PE4 P3 4/ SCK0/ IRQ4 P3 5/ SCK1/ IRQ5 PE0/D0 PE1/D1 PE2/D2 PE3/D3 V SS PE4/D4 P3 4/ SCK0/ IRQ4 P3 5/ SCK1/ IRQ5 PE0/D0 PE1/D1 PE2/D2 PE3/D3 V SS PE4/D4 P3 4/ SCK0/ IRQ4 P3 5/ SCK1/ IRQ5 PE0/D0 PE1/D1 PE2/D2 PE3/D3 V SS PE4/D4 P3 4/ SCK0/ IRQ4 P3 5/ SCK1/ IRQ5 PE0 PE1 PE2 PE3 V SS PE4 NC 13 15 NC NC 14 15 16 17 18 19 16 17 18 19 20 21 NC NC NC NC V SS NC NC NC NC NC V SS NC 9 Table 1.2 Pin No. Pin Functions in Each Operating Mode (cont) Pin Name Flash Memory Writer Mode*4 NC NC NC FO 0 FO 1 FO 2 FO 3 FO 4 FO 5 FO 6 FO 7 V SS FA0 FA1 FA2 FA3 FA4 FA5 FA6 FA7 V CC FA8 FA9 FA10 FA11 FA12 FA13 FA14 FA15 V SS FA16 NC FP-100B, TFP-100B, TFP-100G FP-100A 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 Mode 1 *1 PE5/D5 PE6/D6 PE7/D7 D8 D9 D10 D11 D12 D13 D14 D15 V SS A0 A1 A2 A3 A4 A5 A6 A7 V CC A8 A9 A 10 A 11 A 12 A 13 A 14 A 15 V SS PA0 PA1 Mode 2*1, *2 PE5/D5 PE6/D6 PE7/D7 D8 D9 D10 D11 D12 D13 D14 D15 V SS PC 0/A0 PC 1/A1 PC 2/A2 PC 3/A3 PC 4/A4 PC 5/A5 PC 6/A6 PC 7/A7 V CC PB0/A8 PB1/A9 PB2/A10 PB3/A11 PB4/A12 PB5/A13 PB6/A14 PB7/A15 V SS PA0 PA1 Mode 3*1, *2 PE5 PE6 PE7 PD 0 PD 1 PD 2 PD 3 PD 4 PD 5 PD 6 PD 7 V SS PC 0 PC 1 PC 2 PC 3 PC 4 PC 5 PC 6 PC 7 V CC PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 V SS PA0 PA1 Mode 4 PE5/D5 PE6/D6 PE7/D7 D8 D9 D10 D11 D12 D13 D14 D15 V SS A0 A1 A2 A3 A4 A5 A6 A7 V CC A8 A9 A 10 A 11 A 12 A 13 A 14 A 15 V SS A 16 A 17 Mode 5 PE5/D5 PE6/D6 PE7/D7 D8 D9 D10 D11 D12 D13 D14 D15 V SS A0 A1 A2 A3 A4 A5 A6 A7 V CC A8 A9 A 10 A 11 A 12 A 13 A 14 A 15 V SS A 16 A 17 Mode 6*2 PE5/D5 PE6/D6 PE7/D7 D8 D9 D10 D11 D12 D13 D14 D15 V SS PC 0/A0 PC 1/A1 PC 2/A2 PC 3/A3 PC 4/A4 PC 5/A5 PC 6/A6 PC 7/A7 V CC PB0/A8 PB1/A9 PB2/A10 PB3/A11 PB4/A12 PB5/A13 PB6/A14 PB7/A15 V SS PA0/A16 PA1/A17 Mode 7 *2 PE5 PE6 PE7 PD 0 PD 1 PD 2 PD 3 PD 4 PD 5 PD 6 PD 7 V SS PC 0 PC 1 PC 2 PC 3 PC 4 PC 5 PC 6 PC 7 V CC PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 V SS PA0 PA1 PROM Mode*3 NC NC NC EO0 EO1 EO2 EO3 EO4 EO5 EO6 EO7 V SS EA0 EA1 EA2 EA3 EA4 EA5 EA6 EA7 V CC EA8 OE EA10 EA11 EA12 EA13 EA14 EA15 V SS EA16 V CC 10 Table 1.2 Pin No. Pin Functions in Each Operating Mode (cont) Pin Name Flash Memory Writer Mode*4 NC NC OE CE WE FP-100B, TFP-100B, TFP-100G FP-100A 52 53 54 55 56 54 55 56 57 58 Mode 1 *1 PA2 PA3 P2 0/ TIOCA3 P2 1/ TIOCB3 P2 2/ TIOCC3/ TMRI0 MD0 MD1 P2 3/ TIOCD3/ TMCI0 Mode 2*1, *2 PA2 PA3 P2 0/ TIOCA3 P2 1/ TIOCB3 P2 2/ TIOCC3/ TMRI0 MD0 MD1 P2 3/ TIOCD3/ TMCI0 Mode 3*1, *2 PA2 PA3 P2 0/ TIOCA3 P2 1/ TIOCB3 P2 2/ TIOCC3/ TMRI0 MD0 MD1 P2 3/ TIOCD3/ TMCI0 Mode 4 A 18 A 19 P2 0/ TIOCA3 P2 1/ TIOCB3 P2 2/ TIOCC3/ TMRI0 MD0 MD1 P2 3/ TIOCD3/ TMCI0 Mode 5 A 18 A 19 P2 0/ TIOCA3 P2 1/ TIOCB3 P2 2/ TIOCC3/ TMRI0 MD0 MD1 P2 3/ TIOCD3/ TMCI0 Mode 6*2 PA2/A18 PA3/A19 P2 0/ TIOCA3 P2 1/ TIOCB3 P2 2/ TIOCC3/ TMRI0 MD0 MD1 P2 3/ TIOCD3/ TMCI0 Mode 7 *2 PA2 PA3 P2 0/ TIOCA3 P2 1/ TIOCB3 P2 2/ TIOCC3/ TMRI0 MD0 MD1 P2 3/ TIOCD3/ TMCI0 PROM Mode*3 V CC NC NC NC NC 57 58 59 59 60 61 V SS V SS NC V SS V SS V CC 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 WDTOVF WDTOVF WDTOVF WDTOVF WDTOVF WDTOVF WDTOVF NC (FWE*5) (FWE*5) (FWE*5) (FWE*5) MD2 RES NMI STBY V CC XTAL EXTAL V SS PF7/o AS RD HWR LWR PF2/ WAIT/ IRQ2 PF1/ BACK/ IRQ1 MD2 RES NMI STBY V CC XTAL EXTAL V SS PF7/o AS RD HWR LWR PF2/ WAIT/ IRQ2 PF1/ BACK/ IRQ1 MD2 RES NMI STBY V CC XTAL EXTAL V SS PF7/o PF6 PF5 PF4 PF3/IRQ3 PF2/IRQ2 MD2 RES NMI STBY V CC XTAL EXTAL V SS PF7/o AS RD HWR LWR PF2/ WAIT/ IRQ2 PF1/ BACK/ IRQ1 MD2 RES NMI STBY V CC XTAL EXTAL V SS PF7/o AS RD HWR LWR PF2/ WAIT/ IRQ2 PF1/ BACK/ IRQ1 MD2 RES NMI STBY V CC XTAL EXTAL V SS PF7/o AS RD HWR LWR PF2/ WAIT/ IRQ2 PF1/ BACK/ IRQ1 MD2 RES NMI STBY V CC XTAL EXTAL V SS PF7/o PF6 PF5 PF4 PF3/IRQ3 PF2/IRQ2 V SS V PP EA9 V SS V CC NC NC V SS NC NC NC NC NC CE FWE V SS RES V CC V CC V CC XTAL EXTAL V SS NC NC NC NC NC V CC 75 77 PF1/IRQ1 PF1/IRQ1 PGM V SS 11 Table 1.2 Pin No. Pin Functions in Each Operating Mode (cont) Pin Name Flash Memory Writer Mode*4 V SS FP-100B, TFP-100B, TFP-100G FP-100A 76 78 Mode 1 *1 PF0/ BREQ/ IRQ0 AVCC V ref P4 0/AN0 P4 1/AN1 P4 2/AN2 P4 3/AN3 P4 4/AN4 P4 5/AN5 P4 6/AN6/ DA0 P4 7/AN7/ DA1 AVSS V SS P2 4/ TIOCA4/ TMRI1 P2 5/ TIOCB4/ TMCI1 P2 6/ TIOCA5/ TMO0 P2 7/ TIOCB5/ TMO1 PG0/ IRQ6/ ADTRG Mode 2*1, *2 PF0/ BREQ/ IRQ0 AVCC V ref P4 0/AN0 P4 1/AN1 P4 2/AN2 P4 3/AN3 P4 4/AN4 P4 5/AN5 P4 6/AN6/ DA0 P4 7/AN7/ DA1 AVSS V SS P2 4/ TIOCA4/ TMRI1 P2 5/ TIOCB4/ TMCI1 P2 6/ TIOCA5/ TMO0 P2 7/ TIOCB5/ TMO1 PG0/ IRQ6/ ADTRG Mode 3*1, *2 PF0/IRQ0 Mode 4 PF0/ BREQ/ IRQ0 AVCC V ref P4 0/AN0 P4 1/AN1 P4 2/AN2 P4 3/AN3 P4 4/AN4 P4 5/AN5 P4 6/AN6/ DA0 P4 7/AN7/ DA1 AVSS V SS P2 4/ TIOCA4/ TMRI1 P2 5/ TIOCB4/ TMCI1 P2 6/ TIOCA5/ TMO0 P2 7/ TIOCB5/ TMO1 PG0/ IRQ6/ ADTRG Mode 5 PF0/ BREQ/ IRQ0 AVCC V ref P4 0/AN0 P4 1/AN1 P4 2/AN2 P4 3/AN3 P4 4/AN4 P4 5/AN5 P4 6/AN6/ DA0 P4 7/AN7/ DA1 AVSS V SS P2 4/ TIOCA4/ TMRI1 P2 5/ TIOCB4/ TMCI1 P2 6/ TIOCA5/ TMO0 P2 7/ TIOCB5/ TMO1 PG0/ IRQ6/ ADTRG PG1/CS3/ IRQ7 PG2/CS2 PG3/CS1 PG4/CS0 Mode 6*2 PF0/ BREQ/ IRQ0 AVCC V ref P4 0/AN0 P4 1/AN1 P4 2/AN2 P4 3/AN3 P4 4/AN4 P4 5/AN5 P4 6/AN6/ DA0 P4 7/AN7/ DA1 AVSS V SS P2 4/ TIOCA4/ TMRI1 P2 5/ TIOCB4/ TMCI1 P2 6/ TIOCA5/ TMO0 P2 7/ TIOCB5/ TMO1 PG0/ IRQ6/ ADTRG PG1/CS3/ IRQ7 PG2/CS2 PG3/CS1 PG4/CS0 Mode 7 *2 PF0/IRQ0 PROM Mode*3 NC 77 78 79 80 81 82 83 84 85 86 87 88 89 79 80 81 82 83 84 85 86 87 88 89 90 91 AVCC V ref P4 0/AN0 P4 1/AN1 P4 2/AN2 P4 3/AN3 P4 4/AN4 P4 5/AN5 P4 6/AN6/ DA0 P4 7/AN7/ DA1 AVSS V SS P2 4/ TIOCA4/ TMRI1 P2 5/ TIOCB4/ TMCI1 P2 6/ TIOCA5/ TMO0 P2 7/ TIOCB5/ TMO1 PG0/ IRQ6/ ADTRG AVCC V ref P4 0/AN0 P4 1/AN1 P4 2/AN2 P4 3/AN3 P4 4/AN4 P4 5/AN5 P4 6/AN6/ DA0 P4 7/AN7/ DA1 AVSS V SS P2 4/ TIOCA4/ TMRI1 P2 5/ TIOCB4/ TMCI1 P2 6/ TIOCA5/ TMO0 P2 7/ TIOCB5/ TMO1 PG0/ IRQ6/ ADTRG V CC V CC NC NC NC NC NC NC NC NC V SS V SS NC V CC V CC NC NC NC NC NC NC NC NC V SS V SS NC 90 92 NC V CC 91 93 NC NC 92 94 NC NC 93 95 NC NC 94 95 96 97 96 97 98 99 PG1/IRQ7 PG1/IRQ7 PG1/IRQ7 PG1/CS3/ IRQ7 PG2 PG3 PG4/CS0 PG2 PG3 PG4/CS0 PG2 PG3 PG4 PG2/CS2 PG3/CS1 PG4/CS0 PG1/IRQ7 NC PG2 PG3 PG4 NC NC NC NC NC NC NC 12 Table 1.2 Pin No. Pin Functions in Each Operating Mode (cont) Pin Name Flash Memory Writer Mode*4 V CC NC FP-100B, TFP-100B, TFP-100G FP-100A 98 99 100 1 Mode 1 *1 V CC P1 0/ TIOCA0 P1 1/ TIOCB0 Mode 2*1, *2 V CC P1 0/ TIOCA0 P1 1/ TIOCB0 Mode 3*1, *2 V CC P1 0/ TIOCA0 P1 1/ TIOCB0 Mode 4 V CC P1 0/ TIOCA0/ A 20 P1 1/ TIOCB0/ A 21 Mode 5 V CC P1 0/ TIOCA0/ A 20 P1 1/ TIOCB0/ A 21 Mode 6*2 V CC P1 0/ TIOCA0/ A 20 P1 1/ TIOCB0/ A 21 Mode 7 *2 V CC P1 0/ TIOCA0 P1 1/ TIOCB0 PROM Mode*3 V CC NC 100 2 NC NC Notes: 1. 2. 3. 4. 5. Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. ZTAT version only. F-ZTAT version only. The FWE pin is only used on the F-ZTAT version. It cannot be used as a WDTOVF pin on the F-ZTAT version. 13 1.3.3 Pin Functions Table 1.3 outlines the pin functions of the H8S/2345 Series. Table 1.3 Pin Functions Pin No. FP-100B, TFP-100B, TFP-100G FP-100A Type Power Symbol VCC I/O Input Name and Function Power supply: For connection to the power supply. All V CC pins should be connected to the system power supply. Ground: For connection to ground (0 V). All VSS pins should be connected to the system power supply (0 V). Connects to a crystal oscillator. See section 18, Clock Pulse Generator, for typical connection diagrams for a crystal oscillator and external clock input. Connects to a crystal oscillator. The EXTAL pin can also input an external clock. See section 18, Clock Pulse Generator, for typical connection diagrams for a crystal oscillator and external clock input. 40, 65, 98 42, 67, 100 VSS 7, 18, 31, 49, 68, 88 66 9, 20, 33, 51, 70, 90 68 Input Clock XTAL Input EXTAL 67 69 Input o 69 71 Output System clock: Supplies the system clock to an external device. 14 Table 1.3 Pin Functions (cont) Pin No. FP-100B, TFP-100B, TFP-100G FP-100A Type Symbol I/O Input Name and Function Mode pins: These pins set the operating mode. The relation between the settings of pins MD2 to MD0 and the operating mode is shown below. These pins should not be changed while the H8S/2345 Series is operating. * F-ZTAT Version Operating FWE MD2 MD1 MD0 Mode 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 0 0 1 1 0 1 -- -- -- -- Mode 4 Mode 5 Mode 6 Mode 7 -- -- Mode 10 Mode 11 -- -- Mode 14 Mode 15 Operating mode MD2 to control MD0 61, 58, 57 63, 60, 59 15 Table 1.3 Pin Functions (cont) Pin No. FP-100B, TFP-100B, TFP-100G FP-100A Type Symbol I/O Input Name and Function * ZTAT, mask ROM, and ROMless versions MD1 0 MD0 0 1 1 0 1 1 0 0 1 1 0 1 Operating Mode -- Mode 1 Mode 2* Mode 3* Mode 4 Mode 5 Mode 6* Mode 7* Operating mode MD2 to control MD0 61, 58, 57 63, 60, 59 MD2 0 Note: * Not used on ROMless version. System control RES 62 64 Input Reset input: When this pin is driven low, the chip is reset. The type of reset can be selected according to the NMI input level. At power-on, the NMI pin input level should be set high. Standby: When this pin is driven low, a transition is made to hardware standby mode. Bus request: Used by an external bus master to issue a bus request to the H8S/2345 Series. STBY 64 66 Input BREQ 76 78 Input BACK 75 77 Output Bus request acknowledge: Indicates that the bus has been released to an external bus master. Input Flash write enable: Enables or disables writing to flash memory. FWE*1 60 62 16 Table 1.3 Pin Functions (cont) Pin No. FP-100B, TFP-100B, TFP-100G FP-100A Type Interrupts Symbol NMI I/O Input Name and Function Nonmaskable interrupt: Requests a nonmaskable interrupt. When this pin is not used, it should be fixed high. Interrupt request 7 to 0: These pins request a maskable interrupt. 63 65 IRQ7 to IRQ0 Address bus A23 to A0 94, 93, 13, 12, 73 to 76 2, 1, 100, 99, 53 to 50, 48 to 41, 39 to 32 30 to 19, 17 to 14 94 to 97 70 96, 95, 15, 14, 75 to 78 4 to 1, 55 to 52, 50 to 43, 41 to 34 32 to 21, 19 to 16 96 to 99 72 Input Output Address bus: These pins output an address. Data bus Bus control D15 to D0 CS3 to CS0 AS I/O Data bus: These pins constitute a bidirectional data bus. Output Chip select: Signals for selecting areas 3 to 0. Output Address strobe: When this pin is low, it indicates that address output on the address bus is enabled. Output Read: When this pin is low, it indicates that the external address space can be read. Output High write: A strobe signal that writes to external space and indicates that the upper half (D15 to D8) of the data bus is enabled. Output Low write: A strobe signal that writes to external space and indicates that the lower half (D 7 to D0) of the data bus is enabled. Input Wait: Requests insertion of a wait state in the bus cycle when accessing external 3-state address space. RD 71 73 HWR 72 74 LWR 73 75 WAIT 74 76 17 Table 1.3 Pin Functions (cont) Pin No. FP-100B, TFP-100B, TFP-100G FP-100A Type 16-bit timerpulse unit (TPU) Symbol TCLKD to TCLKA TIOCA0, TIOCB0, TIOCC0, TIOCD0 TIOCA1, TIOCB1 I/O Input Name and Function Clock input D to A: These pins input an external clock. Input capture/ output compare match A0 to D0: The TGR0A to TGR0D input capture input or output compare output, or PWM output pins. Input capture/ output compare match A1 and B1: The TGR1A and TGR1B input capture input or output compare output, or PWM output pins. Input capture/ output compare match A2 and B2: The TGR2A and TGR2B input capture input or output compare output, or PWM output pins. Input capture/ output compare match A3 to D3: The TGR3A to TGR3D input capture input or output compare output, or PWM output pins. Input capture/ output compare match A4 and B4: The TGR4A and TGR4B input capture input or output compare output, or PWM output pins. Input capture/ output compare match A5 and B5: The TGR5A and TGR5B input capture input or output compare output, or PWM output pins. 6, 4, 2, 1 8, 6, 4, 3 99, 100, 1, 2 1 to 4 I/O 3, 4 5, 6 I/O TIOCA2, TIOCB2 5, 6 7, 8 I/O TIOCA3, TIOCB3, TIOCC3, TIOCD3 TIOCA4, TIOCB4 54 to 56, 59 56 to 58, 61 I/O 89, 90 91, 92 I/O TIOCA5, TIOCB5 91, 92 93, 94 I/O 8-bit timer TMO0, TMO1 TMCI0, TMCI1 TMRI0, TMRI1 91, 92 59, 90 93, 94 61, 92 Output Compare match output: The compare match output pins. Input Counter external clock input: Input pins for the external clock input to the counter. Counter external reset input: The counter reset input pins. 56, 89 58, 91 62 Input Watchdog timer (WDT) WDTOVF*2 60 Output Watchdog timer overflows: The counter overflows signal output pin in watchdog timer mode. 18 Table 1.3 Pin Functions (cont) Pin No. FP-100B, TFP-100B, TFP-100G FP-100A Type Serial communication interface (SCI) Smart Card interface Symbol TxD1, TxD0 RxD1, RxD0 SCK1 SCK0 AN7 to AN0 ADTRG I/O Name and Function 9, 8 11, 10 13, 12 86 to 79 93 11, 10 13, 12 15, 14 88 to 81 95 Output Transmit data (channel 0, 1): Data output pins. Input I/O Input Input Receive data (channel 0, 1): Data input pins. Serial clock (channel 0, 1): Clock I/O pins. Analog 7 to 0: Analog input pins. A/D conversion external trigger input: Pin for input of an external trigger to start A/D conversion. A/D converter D/A converter A/D converter and D/A converters DA1, DA0 AVCC 86, 85 77 88, 87 79 Output Analog output: D/A converter analog output pins. Input This is the power supply pin for the A/D converter and D/A converter. When the A/D converter and D/A converter are not used, this pin should be connected to the system power supply (+5 V). This is the ground pin for the A/D converter and D/A converter. This pin should be connected to the system power supply (0 V). This is the reference voltage input pin for the A/D converter and D/A converter. When the A/D converter and D/A converter are not used, this pin should be connected to the system power supply (+5 V). Port 1: An 8-bit I/O port. Input or output can be designated for each bit by means of the port 1 data direction register (P1DDR). Port 2: An 8-bit I/O port. Input or output can be designated for each bit by means of the port 2 data direction register (P2DDR). 19 AVSS 87 89 Input Vref 78 80 Input I/O ports P17 to P10 6 to 1, 100, 99 8 to 1 I/O P27 to P20 92 to 89, 59, 56 to 54 94 to 91, 61, 58 to 56 I/O Table 1.3 Pin Functions (cont) Pin No. FP-100B, TFP-100B, TFP-100G FP-100A Type I/O ports Symbol P35 to P30 I/O I/O Name and Function Port 3: A 6-bit I/O port. Input or output can be designated for each bit by means of the port 3 data direction register (P3DDR). Port 4: An 8-bit input port. Port A: An 4-bit I/O port. Input or output can be designated for each bit by means of the port A data direction register (PADDR). Port B: An 8-bit I/O port. Input or output can be designated for each bit by means of the port B data direction register (PBDDR). Port C: An 8-bit I/O port. Input or output can be designated for each bit by means of the port C data direction register (PCDDR). Port D: An 8-bit I/O port. Input or output can be designated for each bit by means of the port D data direction register (PDDDR). Port E: An 8-bit I/O port. Input or output can be designated for each bit by means of the port E data direction register (PEDDR). Port F: An 8-bit I/O port. Input or output can be designated for each bit by means of the port F data direction register (PFDDR). Port G: A 5-bit I/O port. Input or output can be designated for each bit by means of the port G data direction register (PGDDR). 13 to 8 15 to 10 P47 to P40 PA3 to PA0 86 to 79 53 to 50 88 to 81 55 to 52 Input I/O PB7 to PB0 48 to 41 50 to 43 I/O PC 7 to PC 0 39 to 32 41 to 34 I/O PD 7 to PD 0 30 to 23 32 to 25 I/O PE7 to PE0 22 to 19, 17 to 14 24 to 21, 19 to 16 I/O PF 7 to PF 0 69 to 76 71 to 78 I/O PG4 to PG0 97 to 93 99 to 95 I/O Notes: 1. F-ZTAT version only. 2. Applies to ZTAT, mask ROM, and ROMless versions only. 20 Section 2 CPU 2.1 Overview The H8S/2000 CPU is a high-speed central processing unit with an internal 32-bit architecture that is upward-compatible with the H8/300 and H8/300H CPUs. The H8S/2000 CPU has sixteen 16-bit general registers, can address a 16-Mbyte (architecturally 4-Gbyte) linear address space, and is ideal for realtime control. 2.1.1 Features The H8S/2000 CPU has the following features. * Upward-compatible with H8/300 and H8/300H CPUs Can execute H8/300 and H8/300H object programs * General-register architecture Sixteen 16-bit general registers (also usable as sixteen 8-bit registers or eight 32-bit registers) * Sixty-five basic instructions 8/16/32-bit arithmetic and logic instructions Multiply and divide instructions Powerful bit-manipulation instructions * Eight addressing modes Register direct [Rn] Register indirect [@ERn] Register indirect with displacement [@(d:16,ERn) or @(d:32,ERn)] Register indirect with post-increment or pre-decrement [@ERn+ or @-ERn] Absolute address [@aa:8, @aa:16, @aa:24, or @aa:32] Immediate [#xx:8, #xx:16, or #xx:32] Program-counter relative [@(d:8,PC) or @(d:16,PC)] Memory indirect [@@aa:8] * 16-Mbyte address space Program: 16 Mbytes Data: 16 Mbytes (4 Gbytes architecturally) 21 * High-speed operation All frequently-used instructions execute in one or two states Maximum clock rate : 20 MHz 8/16/32-bit register-register add/subtract : 50 ns 8 x 8-bit register-register multiply : 600 ns 16 / 8-bit register-register divide : 600 ns 16 x 16-bit register-register multiply : 1000 ns 32 / 16-bit register-register divide : 1000 ns * Two CPU operating modes Normal mode (Supported on ZTAT, mask ROM, and ROMless versions only) Advanced mode * Power-down state Transition to power-down state by SLEEP instruction CPU clock speed selection 2.1.2 Differences between H8S/2600 CPU and H8S/2000 CPU The differences between the H8S/2600 CPU and the H8S/2000 CPU are as shown below. * Register configuration The MAC register is supported only by the H8S/2600 CPU. * Basic instructions The four instructions MAC, CLRMAC, LDMAC, and STMAC are supported only by the H8S/2600 CPU. * Number of execution states The number of execution states of the MULXU and MULXS instructions. Internal Operation Instruction MULXU Mnemonic MULXU.B Rs, Rd MULXU.W Rs, ERd MULXS MULXS.B Rs, Rd MULXS.W Rs, ERd H8S/2600 3 4 4 5 H8S/2000 12 20 13 21 There are also differences in the address space, CCR and EXR register functions, power-down state, etc., depending on the product. 22 2.1.3 Differences from H8/300 CPU In comparison to the H8/300 CPU, the H8S/2000 CPU has the following enhancements. * More general registers and control registers Eight 16-bit expanded registers, and one 8-bit control register, have been added. * Expanded address space Normal mode supports the same 64-kbyte address space as the H8/300 CPU. (ZTAT, mask ROM, and ROMless versions only) Advanced mode supports a maximum 16-Mbyte address space. * Enhanced addressing The addressing modes have been enhanced to make effective use of the 16-Mbyte address space. * Enhanced instructions Addressing modes of bit-manipulation instructions have been enhanced. Signed multiply and divide instructions have been added. Two-bit shift instructions have been added. Instructions for saving and restoring multiple registers have been added. A test and set instruction has been added. * Higher speed Basic instructions execute twice as fast. 2.1.4 Differences from H8/300H CPU In comparison to the H8/300H CPU, the H8S/2000 CPU has the following enhancements. * Additional control register One 8-bit control register has been added. * Enhanced instructions Addressing modes of bit-manipulation instructions have been enhanced. Two-bit shift instructions have been added. Instructions for saving and restoring multiple registers have been added. A test and set instruction has been added. * Higher speed Basic instructions execute twice as fast. 23 2.2 CPU Operating Modes The H8S/2000 CPU has two operating modes: normal and advanced. Normal mode supports a maximum 64-kbyte address space. Advanced mode supports a maximum 16-Mbyte total address space (architecturally a maximum 16-Mbyte program area and a maximum of 4 Gbytes for program and data areas combined). The mode is selected by the mode pins of the microcontroller. Maximum 64 kbytes, program and data areas combined Normal mode (Supported on ZTAT, mask ROM, and ROMless versions only) CPU operating modes Advanced mode Maximum 16-Mbytes for program and data areas combined Figure 2.1 CPU Operating Modes (1) Normal Mode (ZTAT, Mask ROM, and ROMless Versions Only) The exception vector table and stack have the same structure as in the H8/300 CPU. Address Space: A maximum address space of 64 kbytes can be accessed. Extended Registers (En): The extended registers (E0 to E7) can be used as 16-bit registers, or as the upper 16-bit segments of 32-bit registers. When En is used as a 16-bit register it can contain any value, even when the corresponding general register (Rn) is used as an address register. If the general register is referenced in the register indirect addressing mode with pre-decrement (@-Rn) or post-increment (@Rn+) and a carry or borrow occurs, however, the value in the corresponding extended register (En) will be affected. Instruction Set: All instructions and addressing modes can be used. Only the lower 16 bits of effective addresses (EA) are valid. 24 Exception Vector Table and Memory Indirect Branch Addresses: In normal mode the top area starting at H'0000 is allocated to the exception vector table. One branch address is stored per 16 bits. The configuration of the exception vector table in normal mode is shown in figure 2.2. For details of the exception vector table, see section 4, Exception Handling. H'0000 H'0001 H'0002 H'0003 H'0004 H'0005 H'0006 H'0007 H'0008 H'0009 H'000A H'000B Power-on reset exception vector Manual reset exception vector (Reserved for system use) Exception vector table Exception vector 1 Exception vector 2 Figure 2.2 Exception Vector Table (Normal Mode) The memory indirect addressing mode (@@aa:8) employed in the JMP and JSR instructions uses an 8-bit absolute address included in the instruction code to specify a memory operand that contains a branch address. In normal mode the operand is a 16-bit word operand, providing a 16bit branch address. Branch addresses can be stored in the top area from H'0000 to H'00FF. Note that this area is also used for the exception vector table. 25 Stack Structure: When the program counter (PC) is pushed onto the stack in a subroutine call, and the PC, condition-code register (CCR), and extended control register (EXR) are pushed onto the stack in exception handling, they are stored as shown in figure 2.3. When EXR is invalid, it is not pushed onto the stack. For details, see section 4, Exception Handling. SP PC (16 bits) SP *2 (SP ) EXR*1 Reserved*1,*3 CCR CCR*3 PC (16 bits) (a) Subroutine Branch (b) Exception Handling Notes: 1. When EXR is not used it is not stored on the stack. 2. SP when EXR is not used. 3. Ignored when returning. Figure 2.3 Stack Structure in Normal Mode (2) Advanced Mode Address Space: Linear access is provided to a 16-Mbyte maximum address space (architecturally a maximum 16-Mbyte program area and a maximum 4-Gbyte data area, with a maximum of 4 Gbytes for program and data areas combined). Extended Registers (En): The extended registers (E0 to E7) can be used as 16-bit registers, or as the upper 16-bit segments of 32-bit registers or address registers. Instruction Set: All instructions and addressing modes can be used. 26 Exception Vector Table and Memory Indirect Branch Addresses: In advanced mode the top area starting at H'00000000 is allocated to the exception vector table in units of 32 bits. In each 32 bits, the upper 8 bits are ignored and a branch address is stored in the lower 24 bits (figure 2.4). For details of the exception vector table, see section 4, Exception Handling. H'00000000 Reserved Power-on reset exception vector H'00000003 H'00000004 Reserved Manual reset exception vector H'00000007 H'00000008 Exception vector table H'0000000B H'0000000C (Reserved for system use) H'00000010 Reserved Exception vector 1 Figure 2.4 Exception Vector Table (Advanced Mode) The memory indirect addressing mode (@@aa:8) employed in the JMP and JSR instructions uses an 8-bit absolute address included in the instruction code to specify a memory operand that contains a branch address. In advanced mode the operand is a 32-bit longword operand, providing a 32-bit branch address. The upper 8 bits of these 32 bits are a reserved area that is regarded as H'00. Branch addresses can be stored in the area from H'00000000 to H'000000FF. Note that the first part of this range is also the exception vector table. 27 Stack Structure: In advanced mode, when the program counter (PC) is pushed onto the stack in a subroutine call, and the PC, condition-code register (CCR), and extended control register (EXR) are pushed onto the stack in exception handling, they are stored as shown in figure 2.5. When EXR is invalid, it is not pushed onto the stack. For details, see section 4, Exception Handling. SP SP Reserved PC (24 bits) *2 (SP ) EXR*1 Reserved*1,*3 CCR PC (24 bits) (a) Subroutine Branch (b) Exception Handling Notes: 1. When EXR is not used it is not stored on the stack. 2. SP when EXR is not used. 3. Ignored when returning. Figure 2.5 Stack Structure in Advanced Mode 28 2.3 Address Space Figure 2.6 shows a memory map of the H8S/2000 CPU. The H8S/2000 CPU provides linear access to a maximum 64-kbyte address space in normal mode*, and a maximum 16-Mbyte (architecturally 4-Gbyte) address space in advanced mode. H'0000 H'00000000 H'FFFF Program area H'00FFFFFF Data area Cannot be used by the H8S/2345 Series H'FFFFFFFF (a) Normal Mode* (b) Advanced Mode Figure 2.6 Memory Map Note: * ZTAT, mask ROM, and ROMless versions only. 29 2.4 2.4.1 Register Configuration Overview The CPU has the internal registers shown in figure 2.7. There are two types of registers: general registers and control registers. General Registers (Rn) and Extended Registers (En) 15 ER0 ER1 ER2 ER3 ER4 ER5 ER6 ER7 (SP) Control Registers (CR) 23 PC 76543210 EXR T -- -- -- -- I2 I1 I0 76543210 CCR I UI H U N Z V C Legend SP: PC: EXR: T: I2 to I0: CCR: I: UI: 0 E0 E1 E2 E3 E4 E5 E6 E7 07 R0H R1H R2H R3H R4H R5H R6H R7H 07 R0L R1L R2L R3L R4L R5L R6L R7L 0 Stack pointer Program counter Extended control register Trace bit Interrupt mask bits Condition-code register Interrupt mask bit User bit or interrupt mask bit* H: U: N: Z: V: C: Half-carry flag User bit Negative flag Zero flag Overflow flag Carry flag Note: * In the H8S/2345 Series, this bit cannot be used as an interrupt mask. Figure 2.7 CPU Registers 30 2.4.2 General Registers The CPU has eight 32-bit general registers. These general registers are all functionally alike and can be used as both address registers and data registers. When a general register is used as a data register, it can be accessed as a 32-bit, 16-bit, or 8-bit register. When the general registers are used as 32-bit registers or address registers, they are designated by the letters ER (ER0 to ER7). The ER registers divide into 16-bit general registers designated by the letters E (E0 to E7) and R (R0 to R7). These registers are functionally equivalent, providing a maximum sixteen 16-bit registers. The E registers (E0 to E7) are also referred to as extended registers. The R registers divide into 8-bit general registers designated by the letters RH (R0H to R7H) and RL (R0L to R7L). These registers are functionally equivalent, providing a maximum sixteen 8-bit registers. Figure 2.8 illustrates the usage of the general registers. The usage of each register can be selected independently. * Address registers * 32-bit registers * 16-bit registers E registers (extended registers) (E0 to E7) * 8-bit registers ER registers (ER0 to ER7) R registers (R0 to R7) RH registers (R0H to R7H) RL registers (R0L to R7L) Figure 2.8 Usage of General Registers 31 General register ER7 has the function of stack pointer (SP) in addition to its general-register function, and is used implicitly in exception handling and subroutine calls. Figure 2.9 shows the stack. Free area SP (ER7) Stack area Figure 2.9 Stack 2.4.3 Control Registers The control registers are the 24-bit program counter (PC), 8-bit extended control register (EXR), and 8-bit condition-code register (CCR). (1) Program Counter (PC): This 24-bit counter indicates the address of the next instruction the CPU will execute. The length of all CPU instructions is 2 bytes (one word), so the least significant PC bit is ignored. (When an instruction is fetched, the least significant PC bit is regarded as 0.) (2) Extended Control Register (EXR): This 8-bit register contains the trace bit (T) and three interrupt mask bits (I2 to I0). Bit 7--Trace Bit (T): Selects trace mode. When this bit is cleared to 0, instructions are executed in sequence. When this bit is set to 1, a trace exception is generated each time an instruction is executed. Bits 6 to 3--Reserved: These bits are reserved. They are always read as 1. 32 Bits 2 to 0--Interrupt Mask Bits (I2 to I0): These bits designate the interrupt mask level (0 to 7). For details, refer to section 5, Interrupt Controller. Operations can be performed on the EXR bits by the LDC, STC, ANDC, ORC, and XORC instructions. All interrupts, including NMI, are disabled for three states after one of these instructions is executed, except for STC. (3) Condition-Code Register (CCR): This 8-bit register contains internal CPU status information, including an interrupt mask bit (I) and half-carry (H), negative (N), zero (Z), overflow (V), and carry (C) flags. Bit 7--Interrupt Mask Bit (I): Masks interrupts other than NMI when set to 1. (NMI is accepted regardless of the I bit setting.) The I bit is set to 1 by hardware at the start of an exceptionhandling sequence. For details, refer to section 5, Interrupt Controller. Bit 6--User Bit or Interrupt Mask Bit (UI): Can be written and read by software using the LDC, STC, ANDC, ORC, and XORC instructions. With the H8S/2345 Series, this bit cannot be used as an interrupt mask bit. Bit 5--Half-Carry Flag (H): When the ADD.B, ADDX.B, SUB.B, SUBX.B, CMP.B, or NEG.B instruction is executed, this flag is set to 1 if there is a carry or borrow at bit 3, and cleared to 0 otherwise. When the ADD.W, SUB.W, CMP.W, or NEG.W instruction is executed, the H flag is set to 1 if there is a carry or borrow at bit 11, and cleared to 0 otherwise. When the ADD.L, SUB.L, CMP.L, or NEG.L instruction is executed, the H flag is set to 1 if there is a carry or borrow at bit 27, and cleared to 0 otherwise. Bit 4--User Bit (U): Can be written and read by software using the LDC, STC, ANDC, ORC, and XORC instructions. Bit 3--Negative Flag (N): Stores the value of the most significant bit (sign bit) of data. Bit 2--Zero Flag (Z): Set to 1 to indicate zero data, and cleared to 0 to indicate non-zero data. Bit 1--Overflow Flag (V): Set to 1 when an arithmetic overflow occurs, and cleared to 0 at other times. Bit 0--Carry Flag (C): Set to 1 when a carry occurs, and cleared to 0 otherwise. Used by: * Add instructions, to indicate a carry * Subtract instructions, to indicate a borrow * Shift and rotate instructions, to store the value shifted out of the end bit The carry flag is also used as a bit accumulator by bit manipulation instructions. 33 Some instructions leave some or all of the flag bits unchanged. For the action of each instruction on the flag bits, refer to Appendix A.1, List of Instructions. Operations can be performed on the CCR bits by the LDC, STC, ANDC, ORC, and XORC instructions. The N, Z, V, and C flags are used as branching conditions for conditional branch (Bcc) instructions. 2.4.4 Initial Register Values Reset exception handling loads the CPU's program counter (PC) from the vector table, clears the trace bit in EXR to 0, and sets the interrupt mask bits in CCR and EXR to 1. The other CCR bits and the general registers are not initialized. In particular, the stack pointer (ER7) is not initialized. The stack pointer should therefore be initialized by an MOV.L instruction executed immediately after a reset. 34 2.5 Data Formats The CPU can process 1-bit, 4-bit (BCD), 8-bit (byte), 16-bit (word), and 32-bit (longword) data. Bit-manipulation instructions operate on 1-bit data by accessing bit n (n = 0, 1, 2, ..., 7) of byte operand data. The DAA and DAS decimal-adjust instructions treat byte data as two digits of 4-bit BCD data. 2.5.1 General Register Data Formats Figure 2.10 shows the data formats in general registers. Data Type Register Number Data Format 1-bit data RnH 7 0 76543210 Don't care 1-bit data RnL Don't care 7 0 76543210 4-bit BCD data RnH 7 Upper 43 Lower 0 Don't care 4-bit BCD data RnL Don't care 7 Upper 43 Lower 0 Byte data RnH 7 MSB 0 Don't care LSB 7 Don't care MSB LSB 0 Byte data RnL Figure 2.10 General Register Data Formats 35 Data Type Register Number Data Format Word data Rn 15 MSB 0 LSB Word data 15 MSB Longword data 31 MSB En 0 LSB ERn 16 15 En Rn 0 LSB Legend ERn: General register ER En: General register E Rn: General register R RnH: General register RH RnL: General register RL MSB: Most significant bit LSB: Least significant bit Figure 2.10 General Register Data Formats (cont) 36 2.5.2 Memory Data Formats Figure 2.11 shows the data formats in memory. The CPU can access word data and longword data in memory, but word or longword data must begin at an even address. If an attempt is made to access word or longword data at an odd address, no address error occurs but the least significant bit of the address is regarded as 0, so the access starts at the preceding address. This also applies to instruction fetches. Data Type Address 7 1-bit data Address L 7 6 5 4 3 2 1 0 0 Data Format Byte data Address L MSB LSB Word data Address 2M MSB Address 2M + 1 LSB Longword data Address 2N MSB Address 2N + 1 Address 2N + 2 Address 2N + 3 LSB Figure 2.11 Memory Data Formats When ER7 is used as an address register to access the stack, the operand size should be word size or longword size. 37 2.6 2.6.1 Instruction Set Overview The H8S/2000 CPU has 65 types of instructions. The instructions are classified by function in table 2.1. Table 2.1 Function Data transfer Instruction Classification Instructions MOV POP* , PUSH* LDM, STM MOVFPE, MOVTPE* 3 1 1 Size BWL WL L B BWL B BWL L BW WL B BWL Types 5 Arithmetic operations ADD, SUB, CMP, NEG ADDX, SUBX, DAA, DAS INC, DEC ADDS, SUBS MULXU, DIVXU, MULXS, DIVXS EXTU, EXTS TAS 19 Logic operations Shift Bit manipulation Branch System control Block data transfer AND, OR, XOR, NOT 4 8 14 5 9 1 SHAL, SHAR, SHLL, SHLR, ROTL, ROTR, ROTXL, ROTXR BWL BSET, BCLR, BNOT, BTST, BLD, BILD, BST, BIST, BAND, BIAND, BOR, BIOR, BXOR, BIXOR Bcc*2, JMP, BSR, JSR, RTS B -- TRAPA, RTE, SLEEP, LDC, STC, ANDC, ORC, XORC, NOP -- EEPMOV -- Notes: B-byte size; W-word size; L-longword size. 1. POP.W Rn and PUSH.W Rn are identical to MOV.W @SP+, Rn and MOV.W Rn, @-SP. POP.L ERn and PUSH.L ERn are identical to MOV.L @SP+, ERn and MOV.L ERn, @-SP. 2. Bcc is the general name for conditional branch instructions. 3. Cannot be used in the H8S/2345 Series. 38 2.6.2 Instructions and Addressing Modes Table 2.2 indicates the combinations of instructions and addressing modes that the H8S/2600 CPU can use. Table 2.2 Combinations of Instructions and Addressing Modes Addressing Modes @-ERn/@ERn+ @(d:16,ERn) @(d:32,ERn) @(d:8,PC) @@aa:8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Function Instruction @ERn #xx @(d:16,PC) @aa:16 @aa:24 @aa:32 @aa:8 Rn Data transfer MOV POP, PUSH LDM, STM MOVFPE*, MOVTPE* BWL BWL BWL BWL BWL BWL -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B -- -- -- B -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B -- -- -- BWL -- -- B -- -- -- -- -- -- -- -- -- -- -- -- -- -- B -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- BWL -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- B -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- WL L -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Arithmetic operations ADD, CMP SUB ADDX, SUBX ADDS, SUBS INC, DEC DAA, DAS MULXU, DIVXU MULXS, DIVXS NEG EXTU, EXTS TAS BWL BWL WL B -- -- -- -- -- -- -- -- BWL B L BWL B BW BW BWL WL -- Logic operations AND, OR, XOR NOT BWL BWL -- -- -- -- -- -- BWL BWL B -- -- -- Shift Bit manipulation Branch Bcc, BSR JMP, JSR RTS -- -- -- -- -- -- Note: * Cannot be used in the H8S/2345 Series. -- 39 Table 2.2 Combinations of Instructions and Addressing Modes (cont) Addressing Modes @-ERn/@ERn+ @(d:16,ERn) @(d:32,ERn) @(d:8,PC) @@aa:8 -- -- -- -- -- -- -- -- Function Instruction @ERn #xx @(d:16,PC) @aa:16 @aa:24 @aa:32 @aa:8 Rn System control TRAPA RTE SLEEP LDC STC ANDC, ORC, XORC NOP -- -- -- B -- B -- -- -- -- -- B B -- -- -- -- -- -- W W -- -- -- -- -- -- W W -- -- -- -- -- -- W W -- -- -- -- -- -- W W -- -- -- -- -- -- -- -- -- -- -- -- -- -- W W -- -- -- -- -- -- -- -- -- -- -- -- -- -- W W -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Block data transfer BW Legend: B: Byte W: Word L: Longword 40 -- 2.6.3 Table of Instructions Classified by Function Table 2.3 summarizes the instructions in each functional category. The notation used in table 2.3 is defined below. Operation Notation Rd Rs Rn ERn (EAd) (EAs) EXR CCR N Z V C PC SP #IMM disp + - x / :8/:16/:24/:32 General register (destination)* General register (source)* General register* General register (32-bit register) Destination operand Source operand Extended control register Condition-code register N (negative) flag in CCR Z (zero) flag in CCR V (overflow) flag in CCR C (carry) flag in CCR Program counter Stack pointer Immediate data Displacement Addition Subtraction Multiplication Division Logical AND Logical OR Logical exclusive OR Move NOT (logical complement) 8-, 16-, 24-, or 32-bit length Note: * General registers include 8-bit registers (R0H to R7H, R0L to R7L), 16-bit registers (R0 to R7, E0 to E7), and 32-bit registers (ER0 to ER7). 41 Table 2.3 Type Data transfer Instructions Classified by Function Instruction MOV Size* B/W/L Function (EAs) Rd, Rs (Ead) Moves data between two general registers or between a general register and memory, or moves immediate data to a general register. Cannot be used in the H8S/2345 Series. Cannot be used in the H8S/2345 Series. @SP+ Rn Pops a register from the stack. POP.W Rn is identical to MOV.W @SP+, Rn. POP.L ERn is identical to MOV.L @SP+, ERn. Rn @-SP Pushes a register onto the stack. PUSH.W Rn is identical to MOV.W Rn, @-SP. PUSH.L ERn is identical to MOV.L ERn, @-SP. @SP+ Rn (register list) Pops two or more general registers from the stack. Rn (register list) @-SP Pushes two or more general registers onto the stack. MOVFPE MOVTPE POP B B W/L PUSH W/L LDM STM L L Note: * Size refers to the operand size. B: Byte W: Word L: Longword 42 Table 2.3 Type Arithmetic operations Instructions Classified by Function (cont) Instruction ADD SUB Size* B/W/L Function Rd Rs Rd, Rd #IMM Rd Performs addition or subtraction on data in two general registers, or on immediate data and data in a general register. (Immediate byte data cannot be subtracted from byte data in a general register. Use the SUBX or ADD instruction.) Rd Rs C Rd, Rd #IMM C Rd Performs addition or subtraction with carry or borrow on byte data in two general registers, or on immediate data and data in a general register. Rd 1 Rd, Rd 2 Rd Increments or decrements a general register by 1 or 2. (Byte operands can be incremented or decremented by 1 only.) Rd 1 Rd, Rd 2 Rd, Rd 4 Rd Adds or subtracts the value 1, 2, or 4 to or from data in a 32-bit register. Rd decimal adjust Rd Decimal-adjusts an addition or subtraction result in a general register by referring to the CCR to produce 4-bit BCD data. Rd x Rs Rd Performs unsigned multiplication on data in two general registers: either 8 bits x 8 bits 16 bits or 16 bits x 16 bits 32 bits. Rd x Rs Rd Performs signed multiplication on data in two general registers: either 8 bits x 8 bits 16 bits or 16 bits x 16 bits 32 bits. Rd / Rs Rd Performs unsigned division on data in two general registers: either 16 bits / 8 bits 8-bit quotient and 8-bit remainder or 32 bits / 16 bits 16-bit quotient and 16bit remainder. ADDX SUBX B INC DEC B/W/L ADDS SUBS DAA DAS L B MULXU B/W MULXS B/W DIVXU B/W Note: * Size refers to the operand size. B: Byte W: Word L: Longword 43 Table 2.3 Type Arithmetic operations Instructions Classified by Function (cont) Instruction DIVXS Size* B/W Function Rd / Rs Rd Performs signed division on data in two general registers: either 16 bits / 8 bits 8-bit quotient and 8-bit remainder or 32 bits / 16 bits 16-bit quotient and 16bit remainder. Rd - Rs, Rd - #IMM Compares data in a general register with data in another general register or with immediate data, and sets CCR bits according to the result. 0 - Rd Rd Takes the two's complement (arithmetic complement) of data in a general register. Rd (zero extension) Rd Extends the lower 8 bits of a 16-bit register to word size, or the lower 16 bits of a 32-bit register to longword size, by padding with zeros on the left. Rd (sign extension) Rd Extends the lower 8 bits of a 16-bit register to word size, or the lower 16 bits of a 32-bit register to longword size, by extending the sign bit. @ERd - 0, 1 ( CMP B/W/L NEG B/W/L EXTU W/L EXTS W/L TAS B Note: * Size refers to the operand size. B: Byte W: Word L: Longword 44 Table 2.3 Type Logic operations Instructions Classified by Function (cont) Instruction AND Size* B/W/L Function Rd Rs Rd, Rd #IMM Rd Performs a logical AND operation on a general register and another general register or immediate data. Rd Rs Rd, Rd #IMM Rd Performs a logical OR operation on a general register and another general register or immediate data. Rd Rs Rd, Rd #IMM Rd Performs a logical exclusive OR operation on a general register and another general register or immediate data. (Rd) (Rd) Takes the one's complement of general register contents. Rd (shift) Rd Performs an arithmetic shift on general register contents. 1-bit or 2-bit shift is possible. Rd (shift) Rd Performs a logical shift on general register contents. 1-bit or 2-bit shift is possible. Rd (rotate) Rd Rotates general register contents. 1-bit or 2-bit rotation is possible. Rd (rotate) Rd Rotates general register contents through the carry flag. 1-bit or 2-bit rotation is possible. OR B/W/L XOR B/W/L NOT B/W/L Shift operations SHAL SHAR SHLL SHLR ROTL ROTR ROTXL ROTXR B/W/L B/W/L B/W/L B/W/L Note: * Size refers to the operand size. B: Byte W: Word L: Longword 45 Table 2.3 Type Bitmanipulation instructions Instructions Classified by Function (cont) Instruction BSET Size* B Function 1 ( BCLR B BNOT B BTST B BAND B BIAND B BOR B BIOR B Note: * Size refers to the operand size. B: Byte 46 Table 2.3 Type Bitmanipulation instructions Instructions Classified by Function (cont) Instruction BXOR Size* B Function C ( BIXOR B BLD B BILD B BST B BIST B Note: * Size refers to the operand size. B: Byte 47 Table 2.3 Type Branch instructions Instructions Classified by Function (cont) Instruction Bcc Size* -- Function Branches to a specified address if a specified condition is true. The branching conditions are listed below. Mnemonic BRA(BT) BRN(BF) BHI BLS BCC(BHS) BCS(BLO) BNE BEQ BVC BVS BPL BMI BGE BLT BGT BLE JMP BSR JSR RTS -- -- -- -- Description Always (true) Never (false) High Low or same Carry clear (high or same) Carry set (low) Not equal Equal Overflow clear Overflow set Plus Minus Greater or equal Less than Greater than Less or equal Condition Always Never CZ=0 CZ=1 C=0 C=1 Z=0 Z=1 V=0 V=1 N=0 N=1 NV=0 NV=1 Z(N V) = 0 Z(N V) = 1 Branches unconditionally to a specified address. Branches to a subroutine at a specified address. Branches to a subroutine at a specified address. Returns from a subroutine 48 Table 2.3 Type Instructions Classified by Function (cont) Instruction Size* -- -- -- B/W Function Starts trap-instruction exception handling. Returns from an exception-handling routine. Causes a transition to a power-down state. (EAs) CCR, (EAs) EXR Moves the source operand contents or immediate data to CCR or EXR. Although CCR and EXR are 8-bit registers, word-size transfers are performed between them and memory. The upper 8 bits are valid. CCR (EAd), EXR (EAd) Transfers CCR or EXR contents to a general register or memory. Although CCR and EXR are 8-bit registers, word-size transfers are performed between them and memory. The upper 8 bits are valid. CCR #IMM CCR, EXR #IMM EXR Logically ANDs the CCR or EXR contents with immediate data. CCR #IMM CCR, EXR #IMM EXR Logically ORs the CCR or EXR contents with immediate data. CCR #IMM CCR, EXR #IMM EXR Logically exclusive-ORs the CCR or EXR contents with immediate data. PC + 2 PC Only increments the program counter. System control TRAPA instructions RTE SLEEP LDC STC B/W ANDC B ORC B XORC B NOP -- Note: * Size refers to the operand size. B: Byte W: Word 49 Table 2.3 Type Block data transfer instruction Instructions Classified by Function (cont) Instruction EEPMOV.B Size -- Function if R4L 0 then Repeat @ER5+ @ER6+ R4L-1 R4L Until R4L = 0 else next; if R4 0 then Repeat @ER5+ @ER6+ R4-1 R4 Until R4 = 0 else next; Transfers a data block according to parameters set in general registers R4L or R4, ER5, and ER6. R4L or R4: size of block (bytes) ER5: starting source address ER6: starting destination address Execution of the next instruction begins as soon as the transfer is completed. EEPMOV.W -- 50 2.6.4 Basic Instruction Formats The CPU instructions consist of 2-byte (1-word) units. An instruction consists of an operation field (op field), a register field (r field), an effective address extension (EA field), and a condition field (cc). Figure 2.12 shows examples of instruction formats. (1) Operation field only op NOP, RTS, etc. (2) Operation field and register fields op rn rm ADD.B Rn, Rm, etc. (3) Operation field, register fields, and effective address extension op EA (disp) (4) Operation field, effective address extension, and condition field op cc EA (disp) BRA d:16, etc rn rm MOV.B @(d:16, Rn), Rm, etc. Figure 2.12 Instruction Formats (Examples) (1) Operation Field: Indicates the function of the instruction, the addressing mode, and the operation to be carried out on the operand. The operation field always includes the first four bits of the instruction. Some instructions have two operation fields. (2) Register Field: Specifies a general register. Address registers are specified by 3 bits, data registers by 3 bits or 4 bits. Some instructions have two register fields. Some have no register field. (3) Effective Address Extension: Eight, 16, or 32 bits specifying immediate data, an absolute address, or a displacement. (4) Condition Field: Specifies the branching condition of Bcc instructions. 51 2.7 2.7.1 Addressing Modes and Effective Address Calculation Addressing Mode The CPU supports the eight addressing modes listed in table 2.4. Each instruction uses a subset of these addressing modes. Arithmetic and logic instructions can use the register direct and immediate modes. Data transfer instructions can use all addressing modes except program-counter relative and memory indirect. Bit manipulation instructions use register direct, register indirect, or absolute addressing mode to specify an operand, and register direct (BSET, BCLR, BNOT, and BTST instructions) or immediate (3-bit) addressing mode to specify a bit number in the operand. Table 2.4 No. 1 2 3 4 5 6 7 8 Addressing Modes Addressing Mode Register direct Register indirect Register indirect with displacement Register indirect with post-increment Register indirect with pre-decrement Absolute address Immediate Program-counter relative Memory indirect Symbol Rn @ERn @(d:16,ERn)/@(d:32,ERn) @ERn+ @-ERn @aa:8/@aa:16/@aa:24/@aa:32 #xx:8/#xx:16/#xx:32 @(d:8,PC)/@(d:16,PC) @@aa:8 (1) Register Direct--Rn: The register field of the instruction specifies an 8-, 16-, or 32-bit general register containing the operand. R0H to R7H and R0L to R7L can be specified as 8-bit registers. R0 to R7 and E0 to E7 can be specified as 16-bit registers. ER0 to ER7 can be specified as 32-bit registers. (2) Register Indirect--@ERn: The register field of the instruction code specifies an address register (ERn) which contains the address of the operand on memory. If the address is a program instruction address, the lower 24 bits are valid and the upper 8 bits are all assumed to be 0 (H'00). (3) Register Indirect with Displacement--@(d:16, ERn) or @(d:32, ERn): A 16-bit or 32-bit displacement contained in the instruction is added to an address register (ERn) specified by the register field of the instruction, and the sum gives the address of a memory operand. A 16-bit displacement is sign-extended when added. 52 (4) Register Indirect with Post-Increment or Pre-Decrement--@ERn+ or @-ERn: * Register indirect with post-increment--@ERn+ The register field of the instruction code specifies an address register (ERn) which contains the address of a memory operand. After the operand is accessed, 1, 2, or 4 is added to the address register contents and the sum is stored in the address register. The value added is 1 for byte access, 2 for word transfer instruction, or 4 for longword transfer instruction. For word or longword transfer instruction, the register value should be even. * Register indirect with pre-decrement--@-ERn The value 1, 2, or 4 is subtracted from an address register (ERn) specified by the register field in the instruction code, and the result becomes the address of a memory operand. The result is also stored in the address register. The value subtracted is 1 for byte access, 2 for word transfer instruction, or 4 for longword transfer instruction. For word or longword transfer instruction, the register value should be even. (5) Absolute Address--@aa:8, @aa:16, @aa:24, or @aa:32: The instruction code contains the absolute address of a memory operand. The absolute address may be 8 bits long (@aa:8), 16 bits long (@aa:16), 24 bits long (@aa:24), or 32 bits long (@aa:32). To access data, the absolute address should be 8 bits (@aa:8), 16 bits (@aa:16), or 32 bits (@aa:32) long. For an 8-bit absolute address, the upper 24 bits are all assumed to be 1 (H'FFFF). For a 16-bit absolute address the upper 16 bits are a sign extension. A 32-bit absolute address can access the entire address space. A 24-bit absolute address (@aa:24) indicates the address of a program instruction. The upper 8 bits are all assumed to be 0 (H'00). Table 2.5 indicates the accessible absolute address ranges. Table 2.5 Absolute Address Access Ranges Normal Mode* 8 bits (@aa:8) 16 bits (@aa:16) 32 bits (@aa:32) Program instruction address 24 bits (@aa:24) H'FF00 to H'FFFF H'0000 to H'FFFF Advanced Mode H'FFFF00 to H'FFFFFF H'000000 to H'007FFF, H'FF8000 to H'FFFFFF H'000000 to H'FFFFFF Absolute Address Data address Note: * ZTAT, mask ROM, and ROMless versions only. 53 (6) Immediate--#xx:8, #xx:16, or #xx:32: The instruction contains 8-bit (#xx:8), 16-bit (#xx:16), or 32-bit (#xx:32) immediate data as an operand. The ADDS, SUBS, INC, and DEC instructions contain immediate data implicitly. Some bit manipulation instructions contain 3-bit immediate data in the instruction code, specifying a bit number. The TRAPA instruction contains 2-bit immediate data in its instruction code, specifying a vector address. (7) Program-Counter Relative--@(d:8, PC) or @(d:16, PC): This mode is used in the Bcc and BSR instructions. An 8-bit or 16-bit displacement contained in the instruction is sign-extended and added to the 24-bit PC contents to generate a branch address. Only the lower 24 bits of this branch address are valid; the upper 8 bits are all assumed to be 0 (H'00). The PC value to which the displacement is added is the address of the first byte of the next instruction, so the possible branching range is -126 to +128 bytes (-63 to +64 words) or -32766 to +32768 bytes (-16383 to +16384 words) from the branch instruction. The resulting value should be an even number. (8) Memory Indirect--@@aa:8: This mode can be used by the JMP and JSR instructions. The instruction code contains an 8-bit absolute address specifying a memory operand. This memory operand contains a branch address. The upper bits of the absolute address are all assumed to be 0, so the address range is 0 to 255 (H'0000 to H'00FF in normal mode, H'000000 to H'0000FF in advanced mode). In normal mode * the memory operand is a word operand and the branch address is 16 bits long. In advanced mode the memory operand is a longword operand, the first byte of which is assumed to be all 0 (H'00). Note that the first part of the address range is also the exception vector area. For further details, refer to section 4, Exception Handling. Note: * ZTAT, mask ROM, and ROMless versions only. 54 Specified by @aa:8 Branch address Specified by @aa:8 Reserved Branch address (a) Normal Mode* Note: * ZTAT, mask ROM, and ROMless versions only. (b) Advanced Mode Figure 2.13 Branch Address Specification in Memory Indirect Mode If an odd address is specified in word or longword memory access, or as a branch address, the least significant bit is regarded as 0, causing data to be accessed or instruction code to be fetched at the address preceding the specified address. (For further information, see section 2.5.2, Memory Data Formats.) 2.7.2 Effective Address Calculation Table 2.6 indicates how effective addresses are calculated in each addressing mode. In normal mode* the upper 8 bits of the effective address are ignored in order to generate a 16-bit address. Note: * ZTAT, mask ROM, and ROMless versions only. 55 Table 2.6 No. 1 Effective Address Calculation Effective Address Calculation Effective Address (EA) Operand is general register contents. Addressing Mode and Instruction Format Register direct (Rn) op rm rn 2 Register indirect (@ERn) 31 General register contents op r 0 31 24 23 0 Don't care 3 Register indirect with displacement @(d:16, ERn) or @(d:32, ERn) 31 General register contents 31 op r disp 31 Sign extension disp 0 24 23 0 Don't care 0 4 Register indirect with post-increment or pre-decrement * Register indirect with post-increment @ERn+ 31 General register contents 0 31 24 23 0 Don't care op r 1, 2, or 4 * Register indirect with pre-decrement @-ERn 31 General register contents 31 op r Operand Size Byte Word Longword Value Added 1 2 4 1, 2, or 4 24 23 0 Don't care 0 56 Table 2.6 No. 5 Effective Address Calculation (cont) Effective Address Calculation Effective Address (EA) Addressing Mode and Instruction Format Absolute address @aa:8 op abs 31 24 23 H'FFFF 87 0 Don't care @aa:16 op abs 31 24 23 16 15 Sign Don't extencare sion 0 @aa:24 op abs 31 24 23 0 Don't care @aa:32 op abs 31 24 23 0 Don't care 6 Immediate #xx:8/#xx:16/#xx:32 op IMM Operand is immediate data. 7 Program-counter relative @(d:8, PC)/@(d:16, PC) 23 PC contents 0 op disp 23 Sign extension 0 disp 31 24 23 0 Don't care 57 Table 2.6 No. 8 Effective Address Calculation (cont) Effective Address Calculation Effective Address (EA) Addressing Mode and Instruction Format Memory indirect @@aa:8 * Normal mode* op abs 31 H'000000 87 abs 0 31 24 23 16 15 0 Don't care 15 Memory contents 0 H'00 * Advanced mode op abs 31 H'000000 87 abs 0 31 Memory contents 0 31 24 23 0 Don't care Note: * ZTAT, mask ROM, and ROMless versions only. 58 2.8 2.8.1 Processing States Overview The CPU has five main processing states: the reset state, exception handling state, program execution state, bus-released state, and power-down state. Figure 2.14 shows a diagram of the processing states. Figure 2.15 indicates the state transitions. Reset state The CPU and all on-chip supporting modules have been initialized and are stopped. Exception-handling state A transient state in which the CPU changes the normal processing flow in response to a reset, interrupt, or trap instruction. Processing states Program execution state The CPU executes program instructions in sequence. Bus-released state The external bus has been released in response to a bus request signal from a bus master other than the CPU. Sleep mode Power-down state CPU operation is stopped to conserve power.* Software standby mode Hardware standby mode Note: * The power-down state also includes a medium-speed mode, module stop mode etc. Figure 2.14 Processing States 59 End of bus request Bus request Program execution state End of bus request Bus request SLEEP instruction with SSBY = 0 Bus-released state End of exception handling Request for exception handling SLEEP instruction with SSBY = 1 Sleep mode Interrupt request Exception-handling state External interrupt RES = high Software standby mode Reset state*1 STBY = high, RES = low Hardware standby mode*2 Power-down state Notes: 1. From any state except hardware standby mode, a transition to the reset state occurs whenever RES goes low. A transition can also be made to the reset state when the watchdog timer overflows. 2. From any state, a transition to hardware standby mode occurs when STBY goes low. Figure 2.15 State Transitions 2.8.2 Reset State When the RES input goes low all current processing stops and the CPU enters the reset state. The CPU enters the power-on reset state when the NMI pin is high, or the manual reset state when the NMI pin is low. All interrupts are masked in the reset state. Reset exception handling starts when the RES signal changes from low to high. The reset state can also be entered by a watchdog timer overflow. For details, refer to section 11, Watchdog Timer. 60 2.8.3 Exception-Handling State The exception-handling state is a transient state that occurs when the CPU alters the normal processing flow due to a reset, interrupt, or trap instruction. The CPU fetches a start address (vector) from the exception vector table and branches to that address. (1) Types of Exception Handling and Their Priority Exception handling is performed for traces, resets, interrupts, and trap instructions. Table 2.7 indicates the types of exception handling and their priority. Trap instruction exception handling is always accepted, in the program execution state. Exception handling and the stack structure depend on the interrupt control mode set in SYSCR. Table 2.7 Priority High Exception Handling Types and Priority Type of Exception Reset Detection Timing Synchronized with clock Start of Exception Handling Exception handling starts immediately after a low-to-high transition at the RES pin, or when the watchdog timer overflows. When the trace (T) bit is set to 1, the trace starts at the end of the current instruction or current exception-handling sequence When an interrupt is requested, exception handling starts at the end of the current instruction or current exception-handling sequence Exception handling starts when a trap (TRAPA) instruction is executed*3 Trace End of instruction execution or end of exception-handling sequence*1 End of instruction execution or end of exception-handling sequence*2 When TRAPA instruction is executed Interrupt Trap instruction Low Notes: 1. Traces are enabled only in interrupt control mode 2. Trace exception-handling is not executed at the end of the RTE instruction. 2. Interrupts are not detected at the end of the ANDC, ORC, XORC, and LDC instructions, or immediately after reset exception handling. 3. Trap instruction exception handling is always accepted, in the program execution state. 61 (2) Reset Exception Handling After the RES pin has gone low and the reset state has been entered, when RES goes high again, reset exception handling starts. The CPU enters the power-on reset state when the NMI pin is high, or the manual reset state when the NMI pin is low. When reset exception handling starts the CPU fetches a start address (vector) from the exception vector table and starts program execution from that address. All interrupts, including NMI, are disabled during reset exception handling and after it ends. (3) Traces Traces are enabled only in interrupt control mode 2. Trace mode is entered when the T bit of EXR is set to 1. When trace mode is established, trace exception handling starts at the end of each instruction. At the end of a trace exception-handling sequence, the T bit of EXR is cleared to 0 and trace mode is cleared. Interrupt masks are not affected. The T bit saved on the stack retains its value of 1, and when the RTE instruction is executed to return from the trace exception-handling routine, trace mode is entered again. Trace exceptionhandling is not executed at the end of the RTE instruction. Trace mode is not entered in interrupt control mode 0, regardless of the state of the T bit. (4) Interrupt Exception Handling and Trap Instruction Exception Handling When interrupt or trap-instruction exception handling begins, the CPU references the stack pointer (ER7) and pushes the program counter and other control registers onto the stack. Next, the CPU alters the settings of the interrupt mask bits in the control registers. Then the CPU fetches a start address (vector) from the exception vector table and program execution starts from that start address. Figure 2.16 shows the stack after exception handling ends. 62 Normal mode*1 SP SP CCR CCR*2 PC (16 bits) EXR Reserved*2 CCR CCR*2 PC (16 bits) (a) Interrupt control mode 0 (b) Interrupt control mode 2 Advanced mode SP SP CCR PC (24 bits) EXR Reserved*2 CCR PC (24 bits) (c) Interrupt control mode 0 Notes: 1. ZTAT, mask ROM, and ROMless versions only. 2. Ignored when returning. (d) Interrupt control mode 2 Figure 2.16 Stack Structure after Exception Handling (Examples) 63 2.8.4 Program Execution State In this state the CPU executes program instructions in sequence. 2.8.5 Bus-Released State This is a state in which the bus has been released in response to a bus request from a bus master other than the CPU. While the bus is released, the CPU halts operations. There is one other bus master in addition to the CPU: the data transfer controller (DTC). For further details, refer to section 6, Bus Controller. 2.8.6 Power-Down State The power-down state includes both modes in which the CPU stops operating and modes in which the CPU does not stop. There are three modes in which the CPU stops operating: sleep mode, software standby mode, and hardware standby mode. There are also two other power-down modes: medium-speed mode, and module stop mode. In medium-speed mode the CPU and other bus masters operate on a medium-speed clock. Module stop mode permits halting of the operation of individual modules, other than the CPU. For details, refer to section 19, Power-Down State. (1) Sleep Mode: A transition to sleep mode is made if the SLEEP instruction is executed while the software standby bit (SSBY) in the standby control register (SBYCR) is cleared to 0. In sleep mode, CPU operations stop immediately after execution of the SLEEP instruction. The contents of CPU registers are retained. (2) Software Standby Mode: A transition to software standby mode is made if the SLEEP instruction is executed while the SSBY bit in SBYCR is set to 1. In software standby mode, the CPU and clock halt and all MCU operations stop. As long as a specified voltage is supplied, the contents of CPU registers and on-chip RAM are retained. The I/O ports also remain in their existing states. (3) Hardware Standby Mode: A transition to hardware standby mode is made when the STBY pin goes low. In hardware standby mode, the CPU and clock halt and all MCU operations stop. The on-chip supporting modules are reset, but as long as a specified voltage is supplied, on-chip RAM contents are retained. 64 2.9 2.9.1 Basic Timing Overview The CPU is driven by a system clock, denoted by the symbol o. The period from one rising edge of o to the next is referred to as a "state." The memory cycle or bus cycle consists of one, two, or three states. Different methods are used to access on-chip memory, on-chip supporting modules, and the external address space. 2.9.2 On-Chip Memory (ROM, RAM) On-chip memory is accessed in one state. The data bus is 16 bits wide, permitting both byte and word transfer instruction. Figure 2.17 shows the on-chip memory access cycle. Figure 2.18 shows the pin states. Bus cycle T1 o Internal address bus Internal read signal Internal data bus Internal write signal Write access Internal data bus Write data Read data Address Read access Figure 2.17 On-Chip Memory Access Cycle 65 Bus cycle T1 o Address bus AS RD HWR, LWR Data bus Unchanged High High High High-impedance state Figure 2.18 Pin States during On-Chip Memory Access 66 2.9.3 On-Chip Supporting Module Access Timing The on-chip supporting modules are accessed in two states. The data bus is either 8 bits or 16 bits wide, depending on the particular internal I/O register being accessed. Figure 2.19 shows the access timing for the on-chip supporting modules. Figure 2.20 shows the pin states. Bus cycle T1 T2 o Internal address bus Address Internal read signal Read access Internal data bus Internal write signal Write access Internal data bus Write data Read data Figure 2.19 On-Chip Supporting Module Access Cycle 67 Bus cycle T1 T2 o Address bus Unchanged AS RD HWR, LWR High High High Data bus High-impedance state Figure 2.20 Pin States during On-Chip Supporting Module Access 2.9.4 External Address Space Access Timing The external address space is accessed with an 8-bit or 16-bit data bus width in a two-state or three-state bus cycle. In three-state access, wait states can be inserted. For further details, refer to section 6, Bus Controller. 68 Section 3 MCU Operating Modes 3.1 3.1.1 Overview Operating Mode Selection (F-ZTATTM Version) The H8S/2345 Series has eight operating modes (modes 4 to 7, 10, 11, 14 and 15). These modes are determined by the mode pin (MD2 to MD0) and flash write enable pin (FWE) settings. The CPU operating mode and initial bus width can be selected as shown in table 3.1. Table 3.1 lists the MCU operating modes. Table 3.1 MCU Operating Mode Selection (F-ZTATTM Version) External Data Bus On-Chip Initial ROM Width -- -- Max. Width -- MCU CPU Operating Operating Mode FWE MD2 MD1 MD0 Mode Description 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 1 0 1 1 0 0 1 1 0 1 0 0 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Advanced User program mode -- -- Advanced Boot mode -- -- -- Advanced On-chip ROM disabled, Disabled 16 bits 16 bits expanded mode 8 bits 16 bits On-chip ROM enabled, Enabled 8 bits expanded mode Single-chip mode -- -- -- -- 16 bits -- -- Enabled 8 bits -- -- -- 16 bits -- -- Enabled 8 bits -- 16 bits -- The CPU's architecture allows for 4 Gbytes of address space, but the H8S/2345 Series actually accesses a maximum of 16 Mbytes. 69 Modes 4 to 6 are externally expanded modes that allow access to external memory and peripheral devices. The external expansion modes allow switching between 8-bit and 16-bit bus modes. After program execution starts, an 8-bit or 16-bit address space can be set for each area, depending on the bus controller setting. If 16-bit access is selected for any one area, 16-bit bus mode is set; if 8-bit access is selected for all areas, 8-bit bus mode is set. Note that the functions of each pin depend on the operating mode. Modes 10, 11, 14, and 15 are boot modes and user program modes in which the flash memory can be programmed and erased. For details, see section 17, ROM. The H8S/2345 Series can only be used in modes 4 to 7, 10, 11, 14, and 15. This means that the flash write enable pin and mode pins must be set to select one of these modes. Do not change the inputs at the mode pins during operation. 3.1.2 Operating Mode Selection (ZTAT, Mask ROM, and ROMless Versions) The H8S/2345 Series has seven operating modes (modes 1 to 7). These modes enable selection of the CPU operating mode, enabling/disabling of on-chip ROM, and the initial bus width setting, by setting the mode pins (MD2 to MD0). Table 3.2 lists the MCU operating modes. 70 Table 3.2 MCU Operating Mode Selection External Data Bus On-Chip Initial ROM Width -- -- 16 bits 16 bits Max. Width MCU CPU Operating Operating Description Mode MD2 MD1 MD0 Mode 0 1 2* 3* 4 5 6* 7* 1 1 0 1 0 0 0 1 0 1 0 1 0 1 -- Normal -- On-chip ROM disabled, Disabled 8 bits expanded mode On-chip ROM enabled, Enabled 8 bits expanded mode Single-chip mode -- Advanced On-chip ROM disabled, Disabled 16 bits expanded mode 8 bits On-chip ROM enabled, Enabled 8 bits expanded mode Single-chip mode -- 16 bits 16 bits 16 bits Note: * Not used on ROMless version. The CPU's architecture allows for 4 Gbytes of address space, but the H8S/2345 Series actually accesses a maximum of 16 Mbytes. Modes 1, 2, and 4 to 6 are externally expanded modes that allow access to external memory and peripheral devices. The external expansion modes allow switching between 8-bit and 16-bit bus modes. After program execution starts, an 8-bit or 16-bit address space can be set for each area, depending on the bus controller setting. If 16-bit access is selected for any one area, 16-bit bus mode is set; if 8-bit access is selected for all areas, 8-bit bus mode is set. Note that the functions of each pin depend on the operating mode. The H8S/2345 Series can be used only in modes 1 to 7. This means that the mode pins must be set to select one of these modes. Do not change the inputs at the mode pins during operation. 71 3.1.3 Register Configuration The H8S/2345 Series has a mode control register (MDCR) that indicates the inputs at the mode pins (MD 2 to MD0), and a system control register (SYSCR) and a system control register 2 (SYSCR2)*2 that control the operation of the H8S/2345 Series. Table 3.3 summarizes these registers. Table 3.3 Name Mode control register System control register System control register 2* 2 MCU Registers Abbreviation MDCR SYSCR SYSCR2 R/W R R/W R/W Initial Value Undetermined H'01 H'00 Address*1 H'FF3B H'FF39 H'FF42 Notes: 1. Lower 16 bits of the address. 2. The SYSCR2 register can only be used in the F-ZTAT version. In the ZTAT, mask ROM, and ROMless versions, this register cannot be written to and will return an undefined value of read. 3.2 3.2.1 Bit Register Descriptions Mode Control Register (MDCR) : 7 -- 1 -- 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- 3 -- 0 -- 2 MDS2 --* R 1 MDS1 --* R 0 MDS0 --* R Initial value: R/W : Note: * Determined by pins MD2 to MD0. MDCR is an 8-bit read-only register that indicates the current operating mode of the H8S/2345 Series. Bit 7--Reserved: Read-only bit, always read as 1. Bits 6 to 3--Reserved: Read-only bits, always read as 0. Bits 2 to 0--Mode Select 2 to 0 (MDS2 to MDS0): These bits indicate the input levels at pins MD2 to MD0 (the current operating mode). Bits MDS2 to MDS0 correspond to MD2 to MD0. MDS2 to MDS0 are read-only bits-they cannot be written to. The mode pin (MD2 to MD0) input levels are latched into these bits when MDCR is read. These latches are canceled by a power-on reset, but are retained after a manual reset. 72 3.2.2 Bit System Control Register (SYSCR) : 7 -- 0 R/W 6 -- 0 R/W 5 INTM1 0 R/W 4 INTM0 0 R/W 3 NMIEG 0 R/W 2 -- 0 R/W 1 -- 0 R/W 0 RAME 1 R/W Initial value: R/W : Bits 7 and 6--Reserved: Only 0 should be written to these bits. Bits 5 and 4--Interrupt Control Mode 1 and 0 (INTM1, INTM0): These bits select the control mode of the interrupt controller. For details of the interrupt control modes, see section 5.4.1, Interrupt Control Modes and Interrupt Operation. Bit 5 INTM1 0 Bit 4 INTM0 0 1 1 0 1 Interrupt Control Mode 0 -- 2 -- Description Control of interrupts by I bit Setting prohibited Control of interrupts by I2 to I0 bits and IPR Setting prohibited (Initial value) Bit 3--NMI Edge Select (NMIEG): Selects the valid edge of the NMI interrupt input. Bit 3 NMIEG 0 1 Description An interrupt is requested at the falling edge of NMI input An interrupt is requested at the rising edge of NMI input (Initial value) Bits 2 and 1--Reserved: Only 0 should be written to these bits. Bit 0--RAM Enable (RAME): Enables or disables the on-chip RAM. The RAME bit is initialized when the reset status is released. It is not initialized in software standby mode. Bit 0 RAME 0 1 Description On-chip RAM is disabled On-chip RAM is enabled (Initial value) 73 3.2.3 Bit System Control Register 2 (SYSCR2) (F-ZTAT Version Only) : 7 -- 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- 3 FLSHE 0 R/W 2 -- 0 -- 1 -- 0 -- 0 -- 0 -- Initial value : R/W : 0 -- SYSCR2 is an 8-bit readable/writable register that performs on-chip flash memory control. SYSCR2 is initialized to H'00 by a reset and in hardware standby mode. SYSCR2 can only be accessed in the F-ZTAT version. In other versions, this register cannot be written to and will return an undefined value if read. Bits 7 to 4--Reserved: Read-only bits, always read as 0. Bit 3--Flash Memory Control Register Enable (FLSHE): Controls CPU access to the flash memory control registers (FLMCR1, FLMCR2, EBR1, and EBR2). For details, see section 17, ROM. Bit 3 FLSHE 0 1 Description Flash control registers are not selected for addresses H'FFFFC8 to H'FFFFCB (Initial value) Flash control registers are selected for addresses H'FFFFC8 to H'FFFFCB Bits 2 to 0--Reserved: Read-only bits, always read as 0. 74 3.3 3.3.1 Operating Mode Descriptions Mode 1 (ZTAT, Mask ROM, and ROMless Versions Only) The CPU can access a 64-kbyte address space in normal mode. The on-chip ROM is disabled, and 8-bit bus mode is set, immediately after a reset. Ports B and C function as an address bus, port D functions as a data bus, and part of port F carries bus control signals. However, note that if 16-bit access is designated by the bus controller, the bus mode switches to 16 bits and port E becomes a data bus. 3.3.2 Mode 2*1 (ZTAT and Mask ROM Versions Only) The CPU can access a 64-kbyte address space in normal mode. The on-chip ROM is enabled, and 8-bit bus mode is set. immediately after a reset. Ports B and C function as input ports immediately after a reset. They can each be set to output addresses by setting the corresponding bits in the data direction register (DDR) to 1. Port D functions as a data bus, and part of port F carries bus control signals. However, note that if 16-bit access is designated by the bus controller, the bus mode switches to 16 bits and port E becomes a data bus. The amount of on-chip ROM that can be used is limited to 56 kbytes. 3.3.3 Mode 3*1 (ZTAT and Mask ROM Versions Only) The CPU can access a 64-kbyte address space in normal mode. The on-chip ROM is enabled, but external addresses cannot be accessed. All I/O ports are available for use as input-output ports. The amount of on-chip ROM that can be used is limited to 56 kbytes. 3.3.4 Mode 4*2 The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is disabled. Pins P13 to P10, ports A, B and C function as an address bus, ports D and E function as a data bus, and part of port F carries bus control signals. Pins P13 to P10 function as inputs immediately after a reset. Each of these pins can be set to output addresses by setting the corresponding bit in the data direction register (DDR) to 1. The initial bus mode after a reset is 16 bits, with 16-bit access to all areas. However, note that if 8-bit access is designated by the bus controller for all areas, the bus mode switches to 8 bits. 75 3.3.5 Mode 5*2 The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is disabled. Pins P13 to P10, ports A, B and C function as an address bus, port D function as a data bus, and part of port F carries bus control signals. Pins P13 to P10 function as inputs immediately after a reset. They can each be set to output addresses by setting the corresponding bits in the data direction register (DDR) to 1. The initial bus mode after a reset is 8 bits, with 8-bit access to all areas. However, note that if at least one area is designated for 16-bit access by the bus controller, the bus mode switches to 16 bits and port E becomes a data bus. 3.3.6 Mode 6*1 The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is enabled. Pins P13 to P10, ports A, B and C function as input ports immediately after a reset. They can each be set to output addresses by setting the corresponding bits in the data direction register (DDR) to 1. Port D functions as a data bus, and part of port F carries bus control signals. The initial bus mode after a reset is 8 bits, with 8-bit access to all areas. However, if any area is designated as 16-bit access space by the bus controller, 16-bit bus mode is set and port E becomes a data bus. 3.3.7 Mode 7*1 The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is enabled, but external addresses cannot be accessed. All I/O ports are available for use as input-output ports. Notes: 1. Not used on ROMless version. 2. The upper address pins (A 23 to A20) cannot be used as outputs in modes 4 or 5 immediately after a reset. To use the upper address pins (A23 to A20) as outputs, it is necessary to first set the corresponding bits in the port 1 data direction register (P1DDR) to 1. 3.3.8 Modes 8 and 9 (F-ZTAT Version Only) Modes 8 and 9 are not supported in the H8S/2345 Series, and must not be set. 76 3.3.9 Mode 10 (F-ZTAT Version Only) This is a flash memory boot mode. For details, see section 17, ROM. MCU operation is the same as in mode 6. 3.3.10 Mode 11 (F-ZTAT Version Only) This is a flash memory boot mode. For details, see section 17, ROM. MCU operation is the same as in mode 7. 3.3.11 Modes 12 and 13 (F-ZTAT Version Only) Modes 12 and 13 are not supported in the H8S/2345 Series, and must not be set. 3.3.12 Mode 14 (F-ZTAT Version Only) This is a flash memory user program mode. For details, see section 17, ROM. MCU operation is the same as in mode 6. 3.3.13 Mode 15 (F-ZTAT Version Only) This is a flash memory user program mode. For details, see section 17, ROM. MCU operation is the same as in mode 7. 77 3.4 Pin Functions in Each Operating Mode The pin functions of ports 1 and A to F vary depending on the operating mode. Table 3.3 shows their functions in each operating mode. Table 3.3 Pin Functions in Each Mode Mode 6*3 Mode 7*3 Mode 10*4 Mode 11*4 Mode 14*4 Mode 15*4 P*1/T/A P*1/A P* /A P* /A D 1 1 1 Port Port 1 Port A Port B Port C Port D Port E Port F PF 7 PF 6 to PF3 PF 2 to PF0 P13 to P1 0 PA3 to PA 0 Mode 1*2 Mode 2*3 Mode 3*3 Mode 4 P* /T P A A D P* /D P/C* C P* /C 1 1 1 1 Mode 5 P*1/T/A A A A D P* /D P* /T P P* /A P* /A D P* /D P/C* C P* /C 1 1 1 1 1 1 P* /T P P P P P P* /C P 1 1 P* /T/A A A A D P/D P/C* C P* /C 1 1 1 P*1/T P P P P P* /D P/C* C 1 1 P P*1/C P P/C* C 1 P* /C 1 P* /C 1 Legend P: I/O port T: Timer I/O A: Address bus output D: Data bus I/O C: Control signals, clock I/O Notes: 1. 2. 3. 4. After reset Not used on F-ZTAT. Not used on ROMless version. Applies to F-ZTAT version only. 78 3.5 Memory Map in Each Operating Mode Memory maps for the H8S/2345, H8S/2344, H8S/2343, H8S/2341, and H8S/2340 are shown in figure 3.1 to figure 3.5. The address space is 64 kbytes in modes 1 to 3 (normal modes)*, and 16 Mbytes in modes 4 to 7, 10, 11, 14, and 15 (advanced modes). The on-chip ROM capacity of the H8S/2345 is 128 kbytes, that of the H8S/2344 96 kbytes, and that of the H8S/2343 64 kbytes. However, only 56 kbytes are available in modes 2 and 3 (normal modes)*. The address space is divided into eight areas for modes 4 to 6, 10, and 14. For details, see section 6, Bus Controller. Note: * Not available on F-ZTAT version. 79 Mode 1*2 (normal expanded mode with on-chip ROM disabled) H'0000 Mode 2*2 (normal expanded mode with on-chip ROM enabled) H'0000 Mode 3*2 (normal single-chip mode) H'0000 External address space On-chip ROM On-chip ROM H'EC00 On-chip H'FC00 RAM*1 H'DFFF H'E000 External address space H'EC00 On-chip H'FC00 RAM*1 H'DFFF H'EC00 On-chip RAM H'FBFF External address space External address space H'FE40 Internal I/O registers H'FF08 External address space H'FE40 Internal I/O registers External address H'FF08 space H'FE40 Internal I/O registers H'FF07 H'FF28 Internal I/O registers H'FFFF H'FF28 Internal I/O registers H'FFFF H'FF28 Internal I/O registers H'FFFF Notes: 1. External addresses can be accessed by clearing the RAME bit in SYSCR to 0. 2. Not available on F-ZTAT version. Figure 3.1 Memory Map in Each Operating Mode in the H8S/2345 80 Modes 4 and 5 (advanced expanded modes with on-chip ROM disabled) H'000000 Mode 6 (advanced expanded mode with on-chip ROM enabled) H'000000 Mode 7 (advanced single-chip mode) H'000000 On-chip ROM On-chip ROM External address space H'00FFFF H'010000 H'00FFFF H'010000 On-chip ROM/ external address space*1 On-chip ROM/ reserved area*2 H'FFEC00 On-chip RAM*3 H'FFFC00 External address space H'01FFFF H'020000 External address space H'FFEC00 On-chip RAM*3 H'01FFFF H'FFEC00 On-chip RAM H'FFFBFF H'FFFC00 External address space H'FFFE40 Internal I/O registers H'FFFF08 External address space H'FFFE40 Internal I/O registers H'FFFF08 External address space H'FFFE40 Internal I/O registers H'FFFF07 H'FFFF28 Internal I/O registers H'FFFFFF H'FFFF28 Internal I/O registers H'FFFFFF H'FFFF28 Internal I/O registers H'FFFFFF Notes: 1. When the EAE bit in BCRL is set to 1, this area is external address space. When the EAE bit is cleared to 0, it is on-chip ROM. 2. When the EAE bit in BCRL is set to 1, this area is reserved. When the EAE bit is cleared to 0, it is on-chip ROM. 3. External addresses can be accessed by clearing the RAME bit in SYSCR to 0. Figure 3.1 Memory Map in Each Operating Mode in the H8S/2345 (cont) 81 Mode 10*4 Boot Mode (advanced expanded mode with on-chip ROM enabled) H'000000 Mode 11*4 Boot Mode (advanced single-chip mode) H'000000 On-chip ROM On-chip ROM H'00FFFF H'010000 H'00FFFF H'010000 On-chip ROM/ external address space*1 On-chip ROM/ reserved area*2 H'01FFFF H'020000 External address space H'FFEC00 On-chip RAM*3 H'01FFFF H'FFEC00 On-chip RAM*3 H'FFFBFF H'FFFC00 External address space H'FFFE40 Internal I/O registers H'FFFF08 External address space H'FFFF28 Internal I/O registers H'FFFFFF H'FFFE40 H'FFFF07 Internal I/O registers H'FFFF28 H'FFFFFF Internal I/O registers Notes: 1. When the EAE bit in BCRL is set to 1, this area is external address space. When the EAE bit is cleared to 0, it is on-chip ROM. 2. When the EAE bit in BCRL is set to 1, this area is reserved. When the EAE bit is cleared to 0, it is on-chip ROM. 3. On-chip RAM is used for flash memory programming. Do not clear the RAME bit to 0 in SYSCR. 4. Modes 10 and 11 are provided in the F-ZTAT version only. Figure 3.1 Memory Map in Each Operating Mode in the H8S/2345 (cont) 82 Mode 14*4 User Program Mode (advanced expanded mode with on-chip ROM enabled) H'000000 Mode 15*4 User Program Mode (advanced single-chip mode) H'000000 On-chip ROM On-chip ROM H'00FFFF H'010000 H'00FFFF H'010000 On-chip ROM/ external address space*1 On-chip ROM/ reserved area*2 H'01FFFF H'020000 External address space H'FFEC00 On-chip RAM*3 H'01FFFF H'FFEC00 On-chip RAM*3 H'FFFBFF H'FFFC00 External address space H'FFFE40 Internal I/O registers H'FFFF08 External address space H'FFFF28 Internal I/O registers H'FFFFFF H'FFFE40 H'FFFF07 Internal I/O registers H'FFFF28 H'FFFFFF Internal I/O registers Notes: 1. When the EAE bit in BCRL is set to 1, this area is external address space. When the EAE bit is cleared to 0, it is on-chip ROM. 2. When the EAE bit in BCRL is set to 1, this area is reserved. When the EAE bit is cleared to 0, it is on-chip ROM. 3. On-chip RAM is used for flash memory programming. Do not clear the RAME bit to 0 in SYSCR. 4. Modes 14 and 15 are provided in the F-ZTAT version only. Figure 3.1 Memory Map in Each Operating Mode in the H8S/2345 (cont) 83 Mode 1 (normal expanded mode with on-chip ROM disabled) H'0000 Mode 2 (normal expanded mode with on-chip ROM enabled) H'0000 Mode 3 (normal single-chip mode) H'0000 External address space On-chip ROM On-chip ROM H'EC00 On-chip RAM* H'FC00 External address space H'DFFF H'E000 External address space H'EC00 On-chip RAM* H'DFFF H'EC00 On-chip RAM H'FBFF H'FC00 External address space H'FE40 Internal I/O registers H'FF08 External address space H'FE40 Internal I/O registers H'FF08 External address space H'FE40 Internal I/O registers H'FF07 H'FF28 Internal I/O registers H'FFFF H'FF28 Internal I/O registers H'FFFF H'FF28 Internal I/O registers H'FFFF Note: * External addresses can be accessed by clearing the RAME bit in SYSCR to 0. Figure 3.2 Memory Map in Each Operating Mode in the H8S/2344 84 Modes 4 and 5 (advanced expanded modes with on-chip ROM disabled) H'000000 Mode 6 (advanced expanded mode with on-chip ROM enabled) H'000000 Mode 7 (advanced single-chip mode) H'000000 On-chip ROM On-chip ROM External address space H'00FFFF H'010000 On-chip ROM/ external address space*1 H'017FFF H'018000 Reserved area/ external address space*2 H'00FFFF H'010000 On-chip ROM/ reserved area*3 H'017FFF H'018000 Reserved area H'01FFFF H'020000 H'FFEC00 On-chip H'FFFC00 RAM*4 H'FFFC00 H'FFEC00 External address space H'FFEC00 On-chip RAM*4 H'FFFBFF On-chip RAM External address space External address space H'FFFE40 Internal I/O registers H'FFFF08 External address space H'FFFE40 Internal I/O registers H'FFFF08 External address space H'FFFE40 Internal I/O registers H'FFFF07 H'FFFF28 Internal I/O registers H'FFFFFF H'FFFF28 Internal I/O registers H'FFFFFF H'FFFF28 Internal I/O registers H'FFFFFF Notes: 1. When the EAE bit in BCRL is set to 1, this area is external address space. When the EAE bit is cleared to 0, it is on-chip ROM. 2. When the EAE bit in BCRL is set to 1, this area is external address space. When the EAE bit is cleared to 0, it is a reserved area. 3. This area is reserved when the EAE bit in BCRL is set to 1, and on-chip ROM when the EAE bit is cleared to 0. 4. External addresses can be accessed by clearing the RAME bit in SYSCR to 0. Figure 3.2 Memory Map in Each Operating Mode in the H8S/2344 (cont) 85 Mode 1 (normal expanded mode with on-chip ROM disabled) H'0000 Mode 2 (normal expanded mode with on-chip ROM enabled) H'0000 Mode 3 (normal single-chip mode) H'0000 On-chip ROM External address space On-chip ROM H'EC00 H'F400 H'FC00 Reserved area* On-chip RAM* External address space H'DFFF H'E000 External address space H'EC00 Reserved area* H'F400 On-chip RAM* H'FC00 External address space H'DFFF H'F400 H'FBFF On-chip RAM H'FE40 Internal I/O registers H'FF08 External address space H'FE40 Internal I/O registers H'FF08 External address space H'FE40 Internal I/O registers H'FF07 H'FF28 Internal I/O registers H'FFFF H'FF28 Internal I/O registers H'FFFF H'FF28 Internal I/O registers H'FFFF Note: * External addresses can be accessed by clearing the RAME bit in SYSCR to 0. Figure 3.3 Memory Map in Each Operating Mode in the H8S/2343 86 Modes 4 and 5 (advanced expanded modes with on-chip ROM disabled) H'000000 Mode 6 (advanced expanded mode with on-chip ROM enabled) H'000000 Mode 7 (advanced single-chip mode) H'000000 On-chip ROM On-chip ROM External address space H'00FFFF H'010000 H'00FFFF External address space/reserved area*1 H'FFEC00 H'FFF400 Reserved area*2 On-chip RAM*2 H'01FFFF H'020000 External address space H'FFEC00 Reserved area*2 H'FFF400 On-chip RAM*2 H'FFFC00 External address space H'FFF400 H'FFFBFF On-chip RAM H'FFFC00 External address space H'FFFE40 Internal I/O registers H'FFFF08 External address space H'FFFE40 Internal I/O registers H'FFFF08 External address space H'FFFE40 Internal I/O registers H'FFFF07 H'FFFF28 Internal I/O registers H'FFFFFF H'FFFF28 Internal I/O registers H'FFFFFF H'FFFF28 Internal I/O registers H'FFFFFF Notes: 1. When the EAE bit in BCRL is set to 1, this area is external address space. When the EAE bit is cleared to 0, it is on-chip ROM. 2. External addresses can be accessed by clearing the RAME bit in SYSCR to 0. Figure 3.3 Memory Map in Each Operating Mode in the H8S/2343 (cont) 87 Mode 1 (normal expanded mode with on-chip ROM disabled) H'0000 Mode 2 (normal expanded mode with on-chip ROM enabled) H'0000 Mode 3 (normal single-chip mode) H'0000 On-chip ROM On-chip ROM External address space H'7FFF H'8000 H'7FFF Reserved area H'EC00 H'F400 H'FC00 Reserved area* On-chip RAM* External address space H'DFFF H'E000 External address space H'EC00 Reserved area* H'F400 On-chip RAM* H'FC00 External address space H'F400 H'FBFF On-chip RAM H'FE40 Internal I/O registers H'FF08 External address space H'FE40 Internal I/O registers H'FF08 External address space H'FE40 Internal I/O registers H'FF07 H'FF28 Internal I/O registers H'FFFF H'FF28 Internal I/O registers H'FFFF H'FF28 Internal I/O registers H'FFFF Note: * External addresses can be accessed by clearing the RAME bit in SYSCR to 0. Figure 3.4 Memory Map in Each Operating Mode in the H8S/2341 88 Modes 4 and 5 (advanced expanded modes with on-chip ROM disabled) H'000000 Mode 6 (advanced expanded mode with on-chip ROM enabled) H'000000 Mode 7 (advanced single-chip mode) H'000000 On-chip ROM On-chip ROM H'007FFF H'008000 Reserved area External address space H'007FFF H'00FFFF H'010000 External address space/reserved area*1 H'FFEC00 H'FFF400 Reserved area*2 On-chip RAM*2 H'01FFFF H'020000 External address space H'FFEC00 Reserved area*2 H'FFF400 On-chip RAM*2 H'FFFC00 External address space H'FFF400 H'FFFBFF On-chip RAM H'FFFC00 External address space H'FFFE40 Internal I/O registers H'FFFF08 External address space H'FFFE40 Internal I/O registers H'FFFF08 External address space H'FFFE40 Internal I/O registers H'FFFF07 H'FFFF28 Internal I/O registers H'FFFFFF H'FFFF28 Internal I/O registers H'FFFFFF H'FFFF28 Internal I/O registers H'FFFFFF Notes: 1. When the EAE bit in BCRL is set to 1, this area is external address space. When the EAE bit is cleared to 0, it is on-chip ROM. 2. External addresses can be accessed by clearing the RAME bit in SYSCR to 0. Figure 3.4 Memory Map in Each Operating Mode in the H8S/2341 (cont) 89 Mode 1 (normal expanded mode with on-chip ROM disabled) H'0000 External address space Modes 4 and 5 (advanced expanded modes with on-chip ROM disabled) H'000000 H'EC00 H'F400 Reserved area* On-chip RAM* H'FC00 External address space H'FE40 Internal I/O registers H'FF08 External address space H'FF28 Internal I/O registers H'FFFF External address space H'FFEC00 H'FFF400 Reserved area* On-chip RAM* H'FFFC00 External address space H'FFFE40 Internal I/O registers H'FFFF08 External address space H'FFFF28 Internal I/O registers H'FFFFFF Note: * External addresses can be accessed by clearing the RAME bit in SYSCR to 0. Figure 3.5 Memory Map in Each Operating Mode in the H8S/2340 (Modes 1, 4, and 5 Only) 90 Section 4 Exception Handling 4.1 4.1.1 Overview Exception Handling Types and Priority As table 4.1 indicates, exception handling may be caused by a reset, trap instruction, or interrupt. Exception handling is prioritized as shown in table 4.1. If two or more exceptions occur simultaneously, they are accepted and processed in order of priority. Trap instruction exceptions are accepted at all times, in the program execution state. Exception handling sources, the stack structure, and the operation of the CPU vary depending on the interrupt control mode set by the INTM0 and INTM1 bits of SYSCR. Table 4.1 Priority High Exception Types and Priority Exception Type Reset Start of Exception Handling Starts immediately after a low-to-high transition at the RES pin, or when the watchdog timer overflows. The CPU enters the power-on reset state when the NMI pin is high, or the manual reset state when the NMI pin is low. Starts when execution of the current instruction or exception handling ends, if the trace (T) bit is set to 1 Starts when execution of the current instruction or exception handling ends, if an interrupt request has been issued*2 Trace*1 Interrupt Low Trap instruction (TRAPA)*3 Started by execution of a trap instruction (TRAPA) Notes: 1. Traces are enabled only in interrupt control mode 2. Trace exception handling is not executed after execution of an RTE instruction. 2. Interrupt detection is not performed on completion of ANDC, ORC, XORC, or LDC instruction execution, or on completion of reset exception handling. 3. Trap instruction exception handling requests are accepted at all times in program execution state. 91 4.1.2 Exception Handling Operation Exceptions originate from various sources. Trap instructions and interrupts are handled as follows: 1. The program counter (PC), condition code register (CCR), and extended register (EXR) are pushed onto the stack. 2. The interrupt mask bits are updated. The T bit is cleared to 0. 3. A vector address corresponding to the exception source is generated, and program execution starts from that address. For a reset exception, steps 2 and 3 above are carried out. 4.1.3 Exception Vector Table The exception sources are classified as shown in figure 4.1. Different vector addresses are assigned to different exception sources. Table 4.2 lists the exception sources and their vector addresses. Reset Trace Exception sources Interrupts Power-on reset Manual reset External interrupts: NMI, IRQ7 to IRQ0 Internal interrupts: 43 interrupt sources in on-chip supporting modules Trap instruction Figure 4.1 Exception Sources In modes 6 and 7 in the H8S/2345, the on-chip ROM available for use after a power-on reset is the 64-kbyte area comprising addresses H'000000 to H'00FFFF. Care is required when setting vector addresses. In this case, clearing the EAE bit in BCRL enables the 128-kbyte area comprising addresses H'000000 to H'01FFFF to be used. 92 Table 4.2 Exception Vector Table Vector Address *1 Exception Source Power-on reset Manual reset Reserved for system use Vector Number 0 1 2 3 4 Normal Mode*3 H'0000 to H'0001 H'0002 to H'0003 H'0004 to H'0006 H'0006 to H'0007 H'0008 to H'0009 H'000A to H'000B H'000C to H'000D H'000E to H'000F H'0010 to H'0011 H'0012 to H'0013 H'0014 to H'0015 H'0016 to H'0017 H'0018 to H'0019 H'001A to H'001B H'001C to H'001D H'001E to H'001F H'0020 to H'0021 H'0022 to H'0023 H'0024 to H'0025 H'0026 to H'0027 H'0028 to H'0029 H'002A to H'002B H'002C to H'002D H'002E to H'002F H'0030 to H'0031 H'00AE to H'00AF Advanced Mode H'0000 to H'0003 H'0004 to H'0007 H'0008 to H'000B H'000C to H'000F H'0010 to H'0013 H'0014 to H'0017 H'0018 to H'001B H'001C to H'001F H'0020 to H'0023 H'0024 to H'0027 H'0028 to H'002B H'002C to H'002F H'0030 to H'0033 H'0034 to H'0037 H'0038 to H'003B H'003C to H'003F H'0040 to H'0043 H'0044 to H'0047 H'0048 to H'004B H'004C to H'004F H'0050 to H'0053 H'0054 to H'0057 H'0058 to H'005B H'005C to H'005F H'0060 to H'0063 H'015C to H'015F Trace Reserved for system use External interrupt NMI 5 6 7 8 9 10 11 Trap instruction (4 sources) Reserved for system use 12 13 14 15 External interrupt IRQ0 IRQ1 IRQ2 IRQ3 IRQ4 IRQ5 IRQ6 IRQ7 16 17 18 19 20 21 22 23 24 87 Internal interrupt * 2 Notes: 1. Lower 16 bits of the address. 2. For details of internal interrupt vectors, see section 5.3.3, Interrupt Exception Handling Vector Table. 3. ZTAT, mask ROM, and ROMless versions only. 93 4.2 4.2.1 Reset Overview A reset has the highest exception priority. When the RES pin goes low, all processing halts and the H8S/2345 Series enters the reset state. A reset initializes the internal state of the CPU and the registers of on-chip supporting modules. Immediately after a reset, interrupt control mode 0 is set. Reset exception handling begins when the RES pin changes from low to high. The level of the NMI pin at reset determines whether the type of reset is a power-on reset or a manual reset. The H8S/2345 Series can also be reset by overflow of the watchdog timer. For details see section 11, Watchdog Timer. 4.2.2 Reset Types A reset can be of either of two types: a power-on reset or a manual reset. Reset types are shown in table 4.3. A power-on reset should be used when powering on. The internal state of the CPU is initialized by either type of reset. A power-on reset also initializes all the registers in the on-chip supporting modules, while a manual reset initializes all the registers in the on-chip supporting modules except for the bus controller and I/O ports, which retain their previous states. With a manual reset, since the on-chip supporting modules are initialized, ports used as on-chip supporting module I/O pins are switched to I/O ports controlled by DDR and DR. Table 4.3 Reset Types Reset Transition Conditions Type Power-on reset Manual reset NMI High Low RES Low Low CPU Initialized Initialized Internal State On-Chip Supporting Modules Initialized Initialized, except for bus controller and I/O ports A reset caused by the watchdog timer can also be of either of two types: a power-on reset or a manual reset. 94 4.2.3 Reset Sequence The H8S/2345 Series enters the reset state when the RES pin goes low. To ensure that the H8S/2345 Series is reset, hold the RES pin low for at least 20 ms at power-up. To reset the H8S/2345 Series during operation, hold the RES pin low for at least 20 states. When the RES pin goes high after being held low for the necessary time, the H8S/2345 Series starts reset exception handling as follows: 1. The internal state of the CPU and the registers of the on-chip supporting modules are initialized, the T bit is cleared to 0 in EXR, and the I bit is set to 1 in EXR and CCR. 2. The reset exception handling vector address is read and transferred to the PC, and program execution starts from the address indicated by the PC. Figures 4.2 and 4.3 show examples of the reset sequence. Vector Internal Prefetch of first program fetch processing instruction o RES Internal address bus Internal read signal Internal write signal Internal data bus (2) (1) (3) High (4) (1) Reset exception handling vector address ((1) = H'0000) (2) Start address (contents of reset exception handling vector address) (3) Start address ((3) = (2)) (4) First program instruction Figure 4.2 Reset Sequence (Modes 2 and 3) 95 Vector fetch Internal Prefetch of first processing program instruction * * * o RES Address bus RD HWR, LWR D15 to D0 (2) (1) (3) (5) High (4) (6) (1) (3) Reset exception handling vector address ((1) = H'000000, (3) = H'000002) (2) (4) Start address (contents of reset exception handling vector address) (5) Start address ((5) = (2) (4)) (6) First program instruction Note: * 3 program wait states are inserted. Figure 4.3 Reset Sequence (Mode 4) 4.2.4 Interrupts after Reset If an interrupt is accepted after a reset but before the stack pointer (SP) is initialized, the PC and CCR will not be saved correctly, leading to a program crash. To prevent this, all interrupt requests, including NMI, are disabled immediately after a reset. Since the first instruction of a program is always executed immediately after the reset state ends, make sure that this instruction initializes the stack pointer (example: MOV.L #xx:32, SP). 4.2.5 State of On-Chip Supporting Modules after Reset Release After reset release, MSTPCR is initialized to H'3FFF and all modules except the DTC enter module stop mode. Consequently, on-chip supporting module registers cannot be read or written to. Register reading and writing is enabled when module stop mode is exited. 96 4.3 Traces Traces are enabled in interrupt control mode 2. Trace mode is not activated in interrupt control mode 0, irrespective of the state of the T bit. For details of interrupt control modes, see section 5, Interrupt Controller. If the T bit in EXR is set to 1, trace mode is activated. In trace mode, a trace exception occurs on completion of each instruction. Trace mode is canceled by clearing the T bit in EXR to 0. It is not affected by interrupt masking. Table 4.4 shows the state of CCR and EXR after execution of trace exception handling. Interrupts are accepted even within the trace exception handling routine. The T bit saved on the stack retains its value of 1, and when control is returned from the trace exception handling routine by the RTE instruction, trace mode resumes. Trace exception handling is not carried out after execution of the RTE instruction. Table 4.4 Status of CCR and EXR after Trace Exception Handling CCR Interrupt Control Mode 0 2 1 I UI I2 to I0 EXR T Trace exception handling cannot be used. -- -- 0 Legend 1: Set to 1 0: Cleared to 0 --: Retains value prior to execution. 97 4.4 Interrupts Interrupt exception handling can be requested by nine external sources (NMI, IRQ7 to IRQ0) and 43 internal sources in the on-chip supporting modules. Figure 4.4 classifies the interrupt sources and the number of interrupts of each type. The on-chip supporting modules that can request interrupts include the watchdog timer (WDT), 16-bit timer-pulse unit (TPU), 8-bit timer, serial communication interface (SCI), data transfer controller (DTC), and A/D converter. Each interrupt source has a separate vector address. NMI is the highest-priority interrupt. Interrupts are controlled by the interrupt controller. The interrupt controller has two interrupt control modes and can assign interrupts other than NMI to eight priority/mask levels to enable multiplexed interrupt control. For details of interrupts, see section 5, Interrupt Controller. External interrupts Interrupts NMI (1) IRQ7 to IRQ0 (8) Internal interrupts WDT*1 (1) TPU (26) 8-bit timer (6) SCI (8) DTC (1) A/D converter (1) Notes: Numbers in parentheses are the numbers of interrupt sources. 1. When the watchdog timer is used as an interval timer, it generates an interrupt request at each counter overflow. Figure 4.4 Interrupt Sources and Number of Interrupts 98 4.5 Trap Instruction Trap instruction exception handling starts when a TRAPA instruction is executed. Trap instruction exception handling can be executed at all times in the program execution state. The TRAPA instruction fetches a start address from a vector table entry corresponding to a vector number from 0 to 3, as specified in the instruction code. Table 4.5 shows the status of CCR and EXR after execution of trap instruction exception handling. Table 4.5 Status of CCR and EXR after Trap Instruction Exception Handling CCR Interrupt Control Mode 0 2 I 1 1 UI -- -- I2 to I0 -- -- EXR T -- 0 Legend 1: Set to 1 0: Cleared to 0 --: Retains value prior to execution. 99 4.6 Stack Status after Exception Handling Figure 4.5 shows the stack after completion of trap instruction exception handling and interrupt exception handling. SP SP CCR CCR* PC (16 bits) EXR Reserved* CCR CCR* PC (16 bits) (a) Interrupt control mode 0 Note: * Ignored on return. (b) Interrupt control mode 2 Figure 4.5 (1) Stack Status after Exception Handling (Normal Modes) (ZTAT, Mask ROM, and ROMless Versions Only) SP SP CCR PC (24bits) EXR Reserved* CCR PC (24bits) (a) Interrupt control mode 0 Note: * Ignored on return. (b) Interrupt control mode 2 Figure 4.5 (2) Stack Status after Exception Handling (Advanced Modes) 100 4.7 Notes on Use of the Stack When accessing word data or longword data, the H8S/2345 Series assumes that the lowest address bit is 0. The stack should always be accessed by word transfer instruction or longword transfer instruction, and the value of the stack pointer (SP, ER7) should always be kept even. Use the following instructions to save registers: PUSH.W PUSH.L Rn ERn (or MOV.W Rn, @-SP) (or MOV.L ERn, @-SP) Use the following instructions to restore registers: POP.W POP.L Rn ERn (or MOV.W @SP+, Rn) (or MOV.L @SP+, ERn) Setting SP to an odd value may lead to a malfunction. Figure 4.6 shows an example of what happens when the SP value is odd. CCR SP PC SP R1L PC H'FFFEFA H'FFFEFB H'FFFEFC H'FFFEFD H'FFFEFF SP TRAP instruction executed MOV.B R1L, @-ER7 SP set to H'FFFEFF Data saved above SP Contents of CCR lost Legend CCR: Condition code register PC: Program counter R1L: General register R1L SP: Stack pointer Note: This diagram illustrates an example in which the interrupt control mode is 0, in advanced mode. Figure 4.6 Operation when SP Value is Odd 101 Section 5 Interrupt Controller 5.1 5.1.1 Overview Features The H8S/2345 Series controls interrupts by means of an interrupt controller. The interrupt controller has the following features: * Two interrupt control modes Any of two interrupt control modes can be set by means of the INTM1 and INTM0 bits in the system control register (SYSCR). * Priorities settable with IPR An interrupt priority register (IPR) is provided for setting interrupt priorities. Eight priority levels can be set for each module for all interrupts except NMI. NMI is assigned the highest priority level of 8, and can be accepted at all times. * Independent vector addresses All interrupt sources are assigned independent vector addresses, making it unnecessary for the source to be identified in the interrupt handling routine. * Nine external interrupts NMI is the highest-priority interrupt, and is accepted at all times. Rising edge or falling edge can be selected for NMI. Falling edge, rising edge, or both edge detection, or level sensing, can be selected for IRQ7 to IRQ0. * DTC control DTC activation is performed by means of interrupts. 103 5.1.2 Block Diagram A block diagram of the interrupt controller is shown in Figure 5.1. INTM1 INTM0 SYSCR NMIEG NMI input IRQ input NMI input unit IRQ input unit ISR ISCR IER Priority determination I, UI I2 to I0 Interrupt request Vector number CPU Internal interrupt request WOVI to TEI CCR EXR IPR Interrupt controller Legend ISCR IER ISR IPR SYSCR : IRQ sense control register : IRQ enable register : IRQ status register : Interrupt priority register : System control register Figure 5.1 Block Diagram of Interrupt Controller 104 5.1.3 Pin Configuration Table 5.1 summarizes the pins of the interrupt controller. Table 5.1 Name Nonmaskable interrupt External interrupt requests 7 to 0 Interrupt Controller Pins Symbol NMI I/O Input Function Nonmaskable external interrupt; rising or falling edge can be selected Maskable external interrupts; rising, falling, or both edges, or level sensing, can be selected IRQ7 to IRQ0 Input 5.1.4 Register Configuration Table 5.2 summarizes the registers of the interrupt controller. Table 5.2 Name System control register IRQ sense control register H IRQ sense control register L IRQ enable register IRQ status register Interrupt priority register A Interrupt priority register B Interrupt priority register C Interrupt priority register D Interrupt priority register E Interrupt priority register F Interrupt priority register G Interrupt priority register H Interrupt priority register I Interrupt priority register J Interrupt priority register K Interrupt Controller Registers Abbreviation SYSCR ISCRH ISCRL IER ISR IPRA IPRB IPRC IPRD IPRE IPRF IPRG IPRH IPRI IPRJ IPRK R/W R/W R/W R/W R/W R/(W)* R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W 2 Initial Value H'01 H'00 H'00 H'00 H'00 H'77 H'77 H'77 H'77 H'77 H'77 H'77 H'77 H'77 H'77 H'77 Address*1 H'FF39 H'FF2C H'FF2D H'FF2E H'FF2F H'FEC4 H'FEC5 H'FEC6 H'FEC7 H'FEC8 H'FEC9 H'FECA H'FECB H'FECC H'FECD H'FECE Notes: 1. Lower 16 bits of the address. 2. Can only be written with 0 for flag clearing. 105 5.2 5.2.1 Bit Register Descriptions System Control Register (SYSCR) : 7 -- 0 R/W 6 -- 0 R/W 5 INTM1 0 R/W 4 INTM0 0 R/W 3 NMIEG 0 R/W 2 -- 0 R/W 1 -- 0 R/W 0 RAME 1 R/W Initial value: R/W : SYSCR is an 8-bit readable/writable register that selects the interrupt control mode, and the detected edge for NMI. Only bits 5 to 3 are described here; for details of the other bits, see section 3.2.2, System Control Register (SYSCR). SYSCR is initialized to H'01 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bits 5 and 4--Interrupt Control Mode 1 and 0 (INTM1, INTM0): These bits select one of two interrupt control modes for the interrupt controller. Bit 5 INTM1 0 Bit 4 INTM0 0 1 1 0 1 Interrupt Control Mode 0 -- 2 -- Description Interrupts are controlled by I bit Setting prohibited Interrupts are controlled by bits I2 to I0, and IPR Setting prohibited (Initial value) Bit 3--NMI Edge Select (NMIEG): Selects the input edge for the NMI pin. Bit 3 NMIEG 0 1 Description Interrupt request generated at falling edge of NMI input Interrupt request generated at rising edge of NMI input (Initial value) 106 5.2.2 Bit Interrupt Priority Registers A to K (IPRA to IPRK) : 7 -- 0 -- 6 IPR6 1 R/W 5 IPR5 1 R/W 4 IPR4 1 R/W 3 -- 0 -- 2 IPR2 1 R/W 1 IPR1 1 R/W 0 IPR0 1 R/W Initial value: R/W : The IPR registers are eleven 8-bit readable/writable registers that set priorities (levels 7 to 0) for interrupts other than NMI. The correspondence between IPR settings and interrupt sources is shown in table 5.3. The IPR registers set a priority (level 7 to 0) for each interrupt source other than NMI. The IPR registers are initialized to H'77 by a reset and in hardware standby mode. Bits 7 and 3--Reserved: Read-only bits, always read as 0. Table 5.3 Correspondence between Interrupt Sources and IPR Settings Bits Register IPRA IPRB IPRC IPRD IPRE IPRF IPRG IPRH IPRI IPRJ IPRK 6 to 4 IRQ0 IRQ2 IRQ3 IRQ6 IRQ7 Watchdog timer --* TPU channel 0 TPU channel 2 TPU channel 4 8-bit timer channel 0 --* SCI channel 1 2 to 0 IRQ1 IRQ4 IRQ5 DTC --* A/D converter TPU channel 1 TPU channel 3 TPU channel 5 8-bit timer channel 1 SCI channel 0 --* Note: * Reserved bits. May be read or written, but the setting is ignored. 107 As shown in table 5.3, multiple interrupts are assigned to one IPR. Setting a value in the range from H'0 to H'7 in the 3-bit groups of bits 6 to 4 and 2 to 0 sets the priority of the corresponding interrupt. The lowest priority level, level 0, is assigned by setting H'0, and the highest priority level, level 7, by setting H'7. When interrupt requests are generated, the highest-priority interrupt according to the priority levels set in the IPR registers is selected. This interrupt level is then compared with the interrupt mask level set by the interrupt mask bits (I2 to I0) in the extend register (EXR) in the CPU, and if the priority level of the interrupt is higher than the set mask level, an interrupt request is issued to the CPU. 5.2.3 IRQ Enable Register (IER) IER is an 8-bit readable/writable register that controls enabling and disabling of interrupt requests IRQ7 to IRQ0. Bit : 7 IRQ7E Initial value: R/W : 0 R/W 6 IRQ6E 0 R/W 5 IRQ5E 0 R/W 4 IRQ4E 0 R/W 3 IRQ3E 0 R/W 2 IRQ2E 0 R/W 1 IRQ1E 0 R/W 0 IRQ0E 0 R/W IER is initialized to H'00 by a reset and in hardware standby mode. Bits 7 to 0--IRQ7 to IRQ0 Enable (IRQ7E to IRQ0E): These bits select whether IRQ7 to IRQ0 are enabled or disabled. Bit n IRQnE 0 1 Description IRQn interrupts disabled IRQn interrupts enabled (n = 7 to 0) (Initial value) 108 5.2.4 ISCRH Bit IRQ Sense Control Registers H and L (ISCRH, ISCRL) : 15 0 R/W 14 0 R/W 13 0 R/W 12 0 R/W 11 0 R/W 10 0 R/W 9 0 R/W 8 0 R/W IRQ7SCB IRQ7SCA IRQ6SCB IRQ6SCA IRQ5SCB IRQ5SCA IRQ4SCB IRQ4SCA Initial value: R/W ISCRL Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W : IRQ3SCB IRQ3SCA IRQ2SCB IRQ2SCA IRQ1SCB IRQ1SCA IRQ0SCB IRQ0SCA Initial value: R/W : The ISCR registers are 16-bit readable/writable registers that select rising edge, falling edge, or both edge detection, or level sensing, for the input at pins IRQ7 to IRQ0. The ISCR registers are initialized to H'0000 by a reset and in hardware standby mode. Bits 15 to 0: IRQ7 Sense Control A and B (IRQ7SCA, IRQ7SCB) to IRQ0 Sense Control A and B (IRQ0SCA, IRQ0SCB) Bits 15 to 0 IRQ7SCB to IRQ0SCB 0 IRQ7SCA to IRQ0SCA 0 1 1 0 1 Description Interrupt request generated at IRQ7 to IRQ0 input low level (Initial value) Interrupt request generated at falling edge of IRQ7 to IRQ0 input Interrupt request generated at rising edge of IRQ7 to IRQ0 input Interrupt request generated at both falling and rising edges of IRQ7 to IRQ0 input 109 5.2.5 Bit IRQ Status Register (ISR) : 7 IRQ7F 0 R/(W)* 6 IRQ6F 0 R/(W)* 5 IRQ5F 0 R/(W)* 4 IRQ4F 0 R/(W)* 3 IRQ3F 0 R/(W)* 2 IRQ2F 0 R/(W)* 1 IRQ1F 0 R/(W)* 0 IRQ0F 0 R/(W)* Initial value: R/W : Note: * Only 0 can be written, to clear the flag. ISR is an 8-bit readable/writable register that indicates the status of IRQ7 to IRQ0 interrupt requests. ISR is initialized to H'00 by a reset and in hardware standby mode. Bits 7 to 0--IRQ7 to IRQ0 flags (IRQ7F to IRQ0F): These bits indicate the status of IRQ7 to IRQ0 interrupt requests. Bit n IRQnF 0 Description [Clearing conditions] * * * * 1 (Initial value) Cleared by reading IRQnF flag when IRQnF = 1, then writing 0 to IRQnF flag When interrupt exception handling is executed when low-level detection is set (IRQnSCB = IRQnSCA = 0) and IRQn input is high When IRQn interrupt exception handling is executed when falling, rising, or both-edge detection is set (IRQnSCB = 1 or IRQnSCA = 1) When the DTC is activated by an IRQn interrupt, and the DISEL bit in MRB of the DTC is cleared to 0 When IRQn input goes low when low-level detection is set (IRQnSCB = IRQnSCA = 0) When a falling edge occurs in IRQn input when falling edge detection is set (IRQnSCB = 0, IRQnSCA = 1) When a rising edge occurs in IRQn input when rising edge detection is set (IRQnSCB = 1, IRQnSCA = 0) When a falling or rising edge occurs in IRQn input when both-edge detection is set (IRQnSCB = IRQnSCA = 1) (n = 7 to 0) [Setting conditions] * * * * 110 5.3 Interrupt Sources Interrupt sources comprise external interrupts (NMI and IRQ7 to IRQ0) and internal interrupts (43 sources). 5.3.1 External Interrupts There are nine external interrupts: NMI and IRQ7 to IRQ0. Of these, NMI and IRQ2 to IRQ0 can be used to restore the H8S/2345 Series from software standby mode. NMI Interrupt: NMI is the highest-priority interrupt, and is always accepted by the CPU regardless of the status of the CPU interrupt mask bits. The NMIEG bit in SYSCR can be used to select whether an interrupt is requested at a rising edge or a falling edge on the NMI pin. The vector number for NMI interrupt exception handling is 7. IRQ7 to IRQ0 Interrupts: Interrupts IRQ7 to IRQ0 are requested by an input signal at pins IRQ7 to IRQ0. Interrupts IRQ7 to IRQ0 have the following features: * Using ISCR, it is possible to select whether an interrupt is generated by a low level, falling edge, rising edge, or both edges, at pins IRQ7 to IRQ0. * Enabling or disabling of interrupt requests IRQ7 to IRQ0 can be selected with IER. * The interrupt priority level can be set with IPR. * The status of interrupt requests IRQ7 to IRQ0 is indicated in ISR. ISR flags can be cleared to 0 by software. A block diagram of interrupts IRQ7 to IRQ0 is shown in figure 5.2. IRQnE IRQnSCA, IRQnSCB IRQnF Edge/level detection circuit IRQn input Clear signal Note: n: 7 to 0 IRQn interrupt S R Q request Figure 5.2 Block Diagram of Interrupts IRQ7 to IRQ0 111 Figure 5.3 shows the timing of setting IRQnF. o IRQn input pin IRQnF Figure 5.3 Timing of Setting IRQnF The vector numbers for IRQ7 to IRQ0 interrupt exception handling are 23 to 16. Detection of IRQ7 to IRQ0 interrupts does not depend on whether the relevant pin has been set for input or output. However, when a pin is used as an external interrupt input pin, do not clear the corresponding DDR to 0 and use the pin as an I/O pin for another function. 5.3.2 Internal Interrupts There are 43 sources for internal interrupts from on-chip supporting modules. * For each on-chip supporting module there are flags that indicate the interrupt request status, and enable bits that select enabling or disabling of these interrupts. If both of these are set to 1 for a particular interrupt source, an interrupt request is issued to the interrupt controller. * The interrupt priority level can be set by means of IPR. * The DTC can be activated by a TPU, 8-bit timer, SCI, or other interrupt request. When the DTC is activated by an interrupt, the interrupt control mode and interrupt mask bits are not affected. 5.3.3 Interrupt Exception Handling Vector Table Table 5.4 shows interrupt exception handling sources, vector addresses, and interrupt priorities. For default priorities, the lower the vector number, the higher the priority. Priorities among modules can be set by means of the IPR. The situation when two or more modules are set to the same priority, and priorities within a module, are fixed as shown in table 5.4. 112 Table 5.4 Interrupt Sources, Vector Addresses, and Interrupt Priorities Origin of Interrupt Source External pin Vector Address *1 Vector Normal Number Mode*2 7 16 17 18 19 20 21 22 23 DTC 24 H'000E H'0020 H'0022 H'0024 H'0026 H'0028 H'002A H'002C H'002E H'0030 H'0032 H'0034 H'0036 H'0038 H'003A H'003C H'003E H'0040 H'0042 H'0044 H'0046 H'0048 H'004A H'004C H'004E Advanced Mode H'001C H'0040 H'0044 H'0048 H'004C H'0050 H'0054 H'0058 H'005C H'0060 H'0064 H'0068 H'006C H'0070 H'0074 H'0078 H'007C H'0080 H'0084 H'0088 H'008C H'0090 H'0094 H'0098 H'009C IPRF6 to 4 IPRE2 to 0 IPRA6 to 4 IPRA2 to 0 IPRB6 to 4 IPRB2 to 0 IPRC6 to 4 IPRC2 to 0 IPRD6 to 4 IPR Priority High Interrupt Source NMI IRQ0 IRQ1 IRQ2 IRQ3 IRQ4 IRQ5 IRQ6 IRQ7 SWDTEND (software activation interrupt end) WOVI (interval timer) Reserved ADI (A/D conversion end) Reserved Watchdog 25 timer -- A/D -- 26 27 28 29 30 31 TGI0A (TGR0A input capture/compare match) TGI0B (TGR0B input capture/compare match) TGI0C (TGR0C input capture/compare match) TGI0D (TGR0D input capture/compare match) TCI0V (overflow 0) Reserved TPU 32 channel 0 33 34 35 36 -- 37 38 39 Low Notes: 1. Lower 16 bits of the start address. 2. ZTAT, mask ROM, and ROMless versions only. 113 Table 5.4 Interrupt Sources, Vector Addresses, and Interrupt Priorities (cont) Origin of Interrupt Source Vector Address *1 Vector Normal Number Mode*2 H'0050 H'0052 H'0054 H'0056 H'0058 H'005A H'005C H'005E H'0060 H'0062 H'0064 H'0066 H'0068 H'006A H'006C H'006E H'0070 H'0072 H'0074 H'0076 H'0078 H'007A H'007C H'007E Advanced Mode H'00A0 H'00A4 H'00A8 H'00AC H'00B0 H'00B4 H'00B8 H'00BC H'00C0 H'00C4 H'00C8 H'00CC H'00D0 H'00D4 H'00D8 H'00DC H'00E0 H'00E4 H'00E8 H'00EC H'00F0 H'00F4 H'00F8 H'00FC IPRH2 to 0 IPRH6 to 4 IPRG2 to 0 IPRG6 to 4 IPR IPRF2 to 0 Priority High Interrupt Source TGI1A (TGR1A input capture/compare match) TGI1B (TGR1B input capture/compare match) TCI1V (overflow 1) TCI1U (underflow 1) TGI2A (TGR2A input capture/compare match) TGI2B (TGR2B input capture/compare match) TCI2V (overflow 2) TCI2U (underflow 2) TGI3A (TGR3A input capture/compare match) TGI3B (TGR3B input capture/compare match) TGI3C (TGR3C input capture/compare match) TGI3D (TGR3D input capture/compare match) TCI3V (overflow 1) Reserved TPU 40 channel 1 41 42 43 TPU 44 channel 2 45 46 47 TPU 48 channel 3 49 50 51 52 -- 53 54 55 TGI4A (TGR4A input capture/compare match) TGI4B (TGR4B input capture/compare match) TCI4V (overflow 4) TCI4U (underflow 4) TGI5A (TGR5A input capture/compare match) TGI5B (TGR5B input capture/compare match) TCI5V (overflow 5) TCI5U (underflow 5) TPU 56 channel 4 57 58 59 TPU 60 channel 5 61 62 63 Low Notes: 1. Lower 16 bits of the start address. 2. ZTAT, mask ROM, and ROMless versions only. 114 Table 5.4 Interrupt Sources, Vector Addresses, and Interrupt Priorities (cont) Origin of Interrupt Source Vector Address *1 Vector Normal Number Mode*2 H'0080 H'0082 H'0084 H'0086 H'0088 H'008A H'008C H'008E H'0090 H'0092 H'0094 H'0096 H'0098 H'009A H'009C H'009E H'00A0 H'00A2 H'00A4 H'00A6 H'00A8 H'00AA H'00AC H'00AE Advanced Mode H'0100 H'0104 H'0108 H'010C H'0110 H'0114 H'0118 H'011C H'0120 H'0124 H'0128 H'012C H'0130 H'0134 H'0138 H'013C H'0140 H'0144 H'0148 H'014C H'0150 H'0154 H'0158 H'015C IPRI2 to 0 IPR IPRI6 to 4 Priority High Interrupt Source CMIA0 (compare match A0) 8-bit timer 64 CMIB0 (compare match B0) channel 0 65 OVI0 (overflow 0) 66 Reserved -- 67 CMIA1 (compare match A1) 8-bit timer 68 CMIB1 (compare match B1) channel 1 69 OVI1 (overflow 1) 70 71 72 73 74 75 76 77 78 79 SCI 80 ERI0 (receive error 0) RXI0 (reception completed 0) channel 0 81 82 TXI0 (transmit data empty 0) 83 TEI0 (transmission end 0) SCI ERI1 (receive error 1) RXI1 (reception completed 1) channel 1 TXI1 (transmit data empty 1) TEI1 (transmission end 1) 84 85 86 87 Reserved -- IPRJ2 to 0 IPRK6 to 4 Low Notes: 1. Lower 16 bits of the start address. 2. ZTAT, mask ROM, and ROMless versions only. 115 5.4 5.4.1 Interrupt Operation Interrupt Control Modes and Interrupt Operation Interrupt operations in the H8S/2345 Series differ depending on the interrupt control mode. NMI interrupts are accepted at all times except in the reset state and the hardware standby state. In the case of IRQ interrupts and on-chip supporting module interrupts, an enable bit is provided for each interrupt. Clearing an enable bit to 0 disables the corresponding interrupt request. Interrupt sources for which the enable bits are set to 1 are controlled by the interrupt controller. Table 5.5 shows the interrupt control modes. The interrupt controller performs interrupt control according to the interrupt control mode set by the INTM1 and INTM0 bits in SYSCR, the priorities set in IPR, and the masking state indicated by the I and UI bits in the CPU's CCR, and bits I2 to I0 in EXR. Table 5.5 Interrupt Control Modes Interrupt Mask Bits Description I -- I2 to I0 Interrupt mask control is performed by the I bit. Setting prohibited 8-level interrupt mask control is performed by bits I2 to I0. 8 priority levels can be set with IPR. Setting prohibited SYSCR Interrupt Priority Setting Control Mode INTM1 INTM0 Registers 0 -- 2 1 0 0 1 0 -- -- IPR -- 1 -- -- 116 Figure 5.4 shows a block diagram of the priority decision circuit. Interrupt control mode 0 I Interrupt acceptance control Interrupt source Default priority determination 8-level mask control Vector number IPR I2 to I0 Interrupt control mode 2 Figure 5.4 Block Diagram of Interrupt Control Operation (1) Interrupt Acceptance Control In interrupt control mode 0, interrupt acceptance is controlled by the I bit in CCR. Table 5.6 shows the interrupts selected in each interrupt control mode. Table 5.6 Interrupts Selected in Each Interrupt Control Mode (1) Interrupt Mask Bits Interrupt Control Mode 0 I 0 1 2 Legend * : Don't care * Selected Interrupts All interrupts NMI interrupts All interrupts 117 (2) 8-Level Control In interrupt control mode 2, 8-level mask level determination is performed for the selected interrupts in interrupt acceptance control according to the interrupt priority level (IPR). The interrupt source selected is the interrupt with the highest priority level, and whose priority level set in IPR is higher than the mask level. Table 5.7 Interrupts Selected in Each Interrupt Control Mode (2) Selected Interrupts All interrupts Highest-priority-level (IPR) interrupt whose priority level is greater than the mask level (IPR > I2 to I0). Interrupt Control Mode 0 2 (3) Default Priority Determination When an interrupt is selected by 8-level control, its priority is determined and a vector number is generated. If the same value is set for IPR, acceptance of multiple interrupts is enabled, and so only the interrupt source with the highest priority according to the preset default priorities is selected and has a vector number generated. Interrupt sources with a lower priority than the accepted interrupt source are held pending. Table 5.8 shows operations and control signal functions in each interrupt control mode. Table 5.8 Operations and Control Signal Functions in Each Interrupt Control Mode Interrupt Acceptance Control I Default Priority Determination Interrupt Setting Control Mode INTM1 INTM0 8-Level Control I2 to I0 IPR T (Trace) 0 2 0 1 0 0 IM X --* 1 X -- IM --*2 PR -- T Legend : Interrupt operation control performed X : No operation. (All interrupts enabled) IM : Used as interrupt mask bit PR : Sets priority. -- : Not used. *1 : Set to 1 when interrupt is accepted. *2 : Keep the initial setting. 118 5.4.2 Interrupt Control Mode 0 Enabling and disabling of IRQ interrupts and on-chip supporting module interrupts can be set by means of the I bit in the CPU's CCR. Interrupts are enabled when the I bit is cleared to 0, and disabled when set to 1. Figure 5.5 shows a flowchart of the interrupt acceptance operation in this case. [1] If an interrupt source occurs when the corresponding interrupt enable bit is set to 1, an interrupt request is sent to the interrupt controller. [2] The I bit is then referenced. If the I bit is cleared to 0, the interrupt request is accepted. If the I bit is set to 1, only an NMI interrupt is accepted, and other interrupt requests are held pending. [3] Interrupt requests are sent to the interrupt controller, the highest-ranked interrupt according to the priority system is accepted, and other interrupt requests are held pending. [4] When an interrupt request is accepted, interrupt exception handling starts after execution of the current instruction has been completed. [5] The PC and CCR are saved to the stack area by interrupt exception handling. The PC saved on the stack shows the address of the first instruction to be executed after returning from the interrupt handling routine. [6] Next, the I bit in CCR is set to 1. This masks all interrupts except NMI. [7] A vector address is generated for the accepted interrupt, and execution of the interrupt handling routine starts at the address indicated by the contents of that vector address. 119 Program execution status Interrupt generated? Yes Yes No NMI No No I=0 Yes Hold pending No IRQ0 Yes No IRQ1 Yes TEI1 Yes Save PC and CCR I1 Read vector address Branch to interrupt handling routine Figure 5.5 Flowchart of Procedure Up to Interrupt Acceptance in Interrupt Control Mode 0 5.4.3 Interrupt Control Mode 2 Eight-level masking is implemented for IRQ interrupts and on-chip supporting module interrupts by comparing the interrupt mask level set by bits I2 to I0 of EXR in the CPU with IPR. 120 Figure 5.6 shows a flowchart of the interrupt acceptance operation in this case. [1] If an interrupt source occurs when the corresponding interrupt enable bit is set to 1, an interrupt request is sent to the interrupt controller. [2] When interrupt requests are sent to the interrupt controller, the interrupt with the highest priority according to the interrupt priority levels set in IPR is selected, and lower-priority interrupt requests are held pending. If a number of interrupt requests with the same priority are generated at the same time, the interrupt request with the highest priority according to the priority system shown in table 5.4 is selected. [3] Next, the priority of the selected interrupt request is compared with the interrupt mask level set in EXR. An interrupt request with a priority no higher than the mask level set at that time is held pending, and only an interrupt request with a priority higher than the interrupt mask level is accepted. [4] When an interrupt request is accepted, interrupt exception handling starts after execution of the current instruction has been completed. [5] The PC, CCR, and EXR are saved to the stack area by interrupt exception handling. The PC saved on the stack shows the address of the first instruction to be executed after returning from the interrupt handling routine. [6] The T bit in EXR is cleared to 0. The interrupt mask level is rewritten with the priority level of the accepted interrupt. If the accepted interrupt is NMI, the interrupt mask level is set to H'7. [7] A vector address is generated for the accepted interrupt, and execution of the interrupt handling routine starts at the address indicated by the contents of that vector address. 121 Program execution status Interrupt generated? Yes Yes NMI No No No Level 7 interrupt? Yes Mask level 6 or below? Yes Level 6 interrupt? No Yes Mask level 5 or below? Yes No Level 1 interrupt? No Yes No Mask level 0 Yes No Save PC, CCR, and EXR Hold pending Clear T bit to 0 Update mask level Read vector address Branch to interrupt handling routine Figure 5.6 Flowchart of Procedure Up to Interrupt Acceptance in Interrupt Control Mode 2 122 5.4.4 Interrupt Exception Handling Sequence Figure 5.7 shows the interrupt exception handling sequence. The example shown is for the case where interrupt control mode 0 is set in advanced mode, and the program area and stack area are in on-chip memory. 123 124 Interrupt acceptance Instruction prefetch Stack Vector fetch Internal operation Internal operation Interrupt service routine instruction prefetch (1) (7) (9) Interrupt level determination Wait for end of instruction o Interrupt request signal Internal address bus (3) (5) (11) (13) Internal read signal Internal write signal (2) (4) (6) (8) (10) (12) (14) Figure 5.7 Interrupt Exception Handling Internal data us (1) Instruction prefetch address (Not executed. This is the contents of the saved PC, the return address.) (2) (4) Instruction code (Not executed.) (3) Instruction prefetch address (Not executed.) (5) SP-2 (7) SP-4 (6) (8) Saved PC and saved CCR (9) (11) Vector address (10) (12) Interrupt handling routine start address (vector address contents) (13) Interrupt handling routine start address ((13) = (10) (12)) (14) First instruction of interrupt handling routine 5.4.5 Interrupt Response Times The H8S/2345 Series is capable of fast word transfer instruction to on-chip memory, and the program area is provided in on-chip ROM and the stack area in on-chip RAM, enabling highspeed processing. Table 5.9 shows interrupt response times - the interval between generation of an interrupt request and execution of the first instruction in the interrupt handling routine. The execution status symbols used in table 5.9 are explained in table 5.10. Table 5.9 Interrupt Response Times Normal Mode*5 No. 1 2 3 4 5 6 Execution Status Interrupt priority determination* 1 Advanced Mode INTM1 = 0 3 1 to 19+2*SI 2*S K 2*S I 2*S I 2 12 to 32 INTM1 = 1 3 1 to 19+2*SI 3*S K 2*S I 2*S I 2 13 to 33 INTM1 = 0 3 INTM1 = 1 3 1 to 19+2*SI 3*S K SI 2*S I 2 12 to 32 Number of wait states until executing 1 to instruction ends*2 19+2*SI PC, CCR, EXR stack save Vector fetch Instruction fetch *3 Internal processing*4 2*S K SI 2*S I 2 11 to 31 Total (using on-chip memory) Notes: 1. 2. 3. 4. 5. Two states in case of internal interrupt. Refers to MULXS and DIVXS instructions. Prefetch after interrupt acceptance and interrupt handling routine prefetch. Internal processing after interrupt acceptance and internal processing after vector fetch. ZTAT, mask ROM, and ROMless versions only. Table 5.10 Number of States in Interrupt Handling Routine Execution Statuses Object of Access External Device 8 Bit Bus Symbol Instruction fetch Branch address read Stack manipulation SI SJ SK Internal Memory 1 2-State Access 4 3-State Access 6+2m 16 Bit Bus 2-State Access 2 3-State Access 3+m Legend m : Number of wait states in an external device access. 125 5.5 5.5.1 Usage Notes Contention between Interrupt Generation and Disabling When an interrupt enable bit is cleared to 0 to disable interrupts, the disabling becomes effective after execution of the instruction. In other words, when an interrupt enable bit is cleared to 0 by an instruction such as BCLR or MOV, if an interrupt is generated during execution of the instruction, the interrupt concerned will still be enabled on completion of the instruction, and so interrupt exception handling for that interrupt will be executed on completion of the instruction. However, if there is an interrupt request of higher priority than that interrupt, interrupt exception handling will be executed for the higher-priority interrupt, and the lower-priority interrupt will be ignored. The same also applies when an interrupt source flag is cleared. Figure 5.8 shows and example in which the CMIEA bit in 8-bit timer TCR is cleared to 0. TCR write cycle by CPU CMIA exception handling o Internal address bus TCR address Internal write signal CMIEA CMFA CMIA interrupt signal Figure 5.8 Contention between Interrupt Generation and Disabling The above contention will not occur if an enable bit or interrupt source flag is cleared to 0 while the interrupt is masked. 126 5.5.2 Instructions that Disable Interrupts Instructions that disable interrupts are LDC, ANDC, ORC, and XORC. After any of these instructions is executed, all interrupts including NMI are disabled and the next instruction is always executed. When the I bit is set by one of these instructions, the new value becomes valid two states after execution of the instruction ends. 5.5.3 Times when Interrupts are Disabled There are times when interrupt acceptance is disabled by the interrupt controller. The interrupt controller disables interrupt acceptance for a 3-state period after the CPU has updated the mask level with an LDC, ANDC, ORC, or XORC instruction. 5.5.4 Interrupts during Execution of EEPMOV Instruction Interrupt operation differs between the EEPMOV.B instruction and the EEPMOV.W instruction. With the EEPMOV.B instruction, an interrupt request (including NMI) issued during the transfer is not accepted until the move is completed. With the EEPMOV.W instruction, if an interrupt request is issued during the transfer, interrupt exception handling starts at a break in the transfer cycle. The PC value saved on the stack in this case is the address of the next instruction. Therefore, if an interrupt is generated during execution of an EEPMOV.W instruction, the following coding should be used. L1: EEPMOV.W MOV.W BNE R4,R4 L1 127 5.6 5.6.1 DTC Activation by Interrupt Overview The DTC can be activated by an interrupt. In this case, the following options are available: * Interrupt request to CPU * Activation request to DTC * Selection of a number of the above For details of interrupt requests that can be used with to activate the DTC, see section 7, Data Transfer Controller. 5.6.2 Block Diagram Figure 5.9 shows a block diagram of the DTC interrupt controller. Interrupt request IRQ interrupt Interrupt source clear signal Selection circuit Select signal Clear signal DTCER DTC activation request vector number Control logic Clear signal DTC On-chip supporting module DTVECR SWDTE clear signal Determination of priority Interrupt controller CPU interrupt request vector number CPU I, I2 to I0 Figure 5.9 Interrupt Control for DTC and DMAC 128 5.6.3 Operation The interrupt controller has three main functions in DTC control. (1) Selection of Interrupt Source: Interrupt sources can be specified as DTC activation requests or CPU interrupt requests by means of the DTCE bit of DTCEA to DTCEE in the DTC. After a DTC data transfer, the DTCE bit can be cleared to 0 and an interrupt request sent to the CPU in accordance with the specification of the DISEL bit of MRB in the DTC. When the DTC has performed the specified number of data transfers and the transfer counter value is zero, the DTCE bit is cleared to 0 and an interrupt request is sent to the CPU after the DTC data transfer. (2) Determination of Priority: The DTC activation source is selected in accordance with the default priority order, and is not affected by mask or priority levels. See section 7.3.3, DTC Vector Table, for the respective priorities. (3) Operation Order: If the same interrupt is selected as a DTC activation source and a CPU interrupt source, the DTC data transfer is performed first, followed by CPU interrupt exception handling. If the same interrupt is selected as a DTC activation source or CPU interrupt source, operations are performed for them independently according to their respective operating statuses and bus mastership priorities. Table 5.11 summarizes interrupt source selection and interrupt source clearance control according to the settings of the DTCE bit of DTCEA to DTCEE in the DTC and the DISEL bit of MRB in the DTC. 129 Table 5.11 Interrupt Source Selection and Clearing Control Settings DTC DTCE 0 1 DISEL * 0 1 Interrupt Source Selection/Clearing Control DTC X CPU X Legend : The relevant interrupt is used. Interrupt source clearing is performed. (The CPU should clear the source flag in the interrupt handling routine.) : The relevant interrupt is used. The interrupt source is not cleared. X : The relevant bit cannot be used. * : Don't care (4) Notes on Use: SCI and A/D converter interrupt sources are cleared when the DTC reads or writes to the prescribed register, and are not dependent upon the DISEL bit. 130 Section 6 Bus Controller 6.1 Overview The H8S/2345 Series has a built-in bus controller (BSC) that manages the external address space divided into eight areas. The bus specifications, such as bus width and number of access states, can be set independently for each area, enabling multiple memories to be connected easily. The bus controller also has a bus arbitration function, and controls the operation of the internal bus masters: the CPU and data transfer controller (DTC). 6.1.1 Features The features of the bus controller are listed below. * Manages external address space in area units In advanced mode, manages the external space as 8 areas of 2-Mbytes In normal mode*, manages the external space as a single area Bus specifications can be set independently for each area * Basic bus interface Chip select (CS0 to CS3) can be output for areas 0 to 3 8-bit access or 16-bit access can be selected for each area 2-state access or 3-state access can be selected for each area Program wait states can be inserted for each area * Burst ROM interface Burst ROM interface can be set for area 0 Choice of 1- or 2-state burst access * Idle cycle insertion An idle cycle can be inserted in case of an external read cycle between different areas An idle cycle can be inserted in case of an external write cycle immediately after an external read cycle * Bus arbitration function Includes a bus arbiter that arbitrates bus mastership among the CPU and DTC * Other features External bus release function Note: * ZTAT, mask ROM, and ROMless versions only. 131 6.1.2 Block Diagram Figure 6.1 shows a block diagram of the bus controller. CS0 to CS3 Area decoder Internal address bus ABWCR External bus control signals ASTCR BCRH BCRL BREQ BACK Bus controller Internal data bus Internal control signals Bus mode signal WAIT Wait controller WCRH WCRL CPU bus request signal DTC bus request signal Bus arbiter CPU bus acknowledge signal DTC bus acknowledge signal Figure 6.1 Block Diagram of Bus Controller 132 6.1.3 Pin Configuration Table 6.1 summarizes the pins of the bus controller. Table 6.1 Name Address strobe Read High write Low write Chip select 0 to 3 Wait Bus request Bus request acknowledge Bus Controller Pins Symbol AS RD HWR LWR CS0 to CS3 WAIT BREQ BACK I/O Output Output Output Output Output Input Input Output Function Strobe signal indicating that address output on address bus is enabled. Strobe signal indicating that external space is being read. Strobe signal indicating that external space is to be written, and upper half (D15 to D8) of data bus is enabled. Strobe signal indicating that external space is to be written, and lower half (D 7 to D0) of data bus is enabled. Strobe signal indicating that areas 0 to 3 are selected. Wait request signal when accessing external 3-state access space. Request signal that releases bus to external device. Acknowledge signal indicating that bus has been released. 6.1.4 Register Configuration Table 6.2 summarizes the registers of the bus controller. Table 6.2 Bus Controller Registers Initial Value Name Bus width control register Access state control register Wait control register H Wait control register L Bus control register H Bus control register L Abbreviation ABWCR ASTCR WCRH WCRL BCRH BCRL R/W R/W R/W R/W R/W R/W R/W Power-On Reset H'FF/H'00*2 H'FF H'FF H'FF H'D0 H'3C Manual Reset Retained Retained Retained Retained Retained Retained Address*1 H'FED0 H'FED1 H'FED2 H'FED3 H'FED4 H'FED5 Notes: 1. Lower 16 bits of the address. 2. Determined by the MCU operating mode. 133 6.2 6.2.1 Bit Register Descriptions Bus Width Control Register (ABWCR) : 7 ABW7 6 ABW6 1 R/W 0 R/W 5 ABW5 1 R/W 0 R/W 4 ABW4 1 R/W 0 R/W 3 ABW3 1 R/W 0 R/W 2 ABW2 1 R/W 0 R/W 1 ABW1 1 R/W 0 R/W 0 ABW0 1 R/W 0 R/W Modes 1 to 3*, 5 to 7 Initial value : 1 RW Mode 4 Initial value : RW : 0 R/W : R/W ABWCR is an 8-bit readable/writable register that designates each area for either 8-bit access or 16-bit access. ABWCR sets the data bus width for the external memory space. The bus width for on-chip memory and internal I/O registers is fixed regardless of the settings in ABWCR. In normal mode*, the settings of bits ABW7 to ABW1 have no effect on operation. After a power-on reset and in hardware standby mode, ABWCR is initialized to H'FF in modes 1, 2, 3*, and 5, 6, 7, and to H'00 in mode 4. It is not initialized by a manual reset or in software standby mode. Bits 7 to 0--Area 7 to 0 Bus Width Control (ABW7 to ABW0): These bits select whether the corresponding area is to be designated for 8-bit access or 16-bit access. In normal mode*, only part of area 0 is enabled, and the ABW0 bit selects whether external space is to be designated for 8-bit access or 16-bit access. Note: * ZTAT, mask ROM, and ROMless versions only. Bit n ABWn 0 1 Description Area n is designated for 16-bit access Area n is designated for 8-bit access (n = 7 to 0) 134 6.2.2 Bit Access State Control Register (ASTCR) : 7 AST7 1 R/W 6 AST6 1 R/W 5 AST5 1 R/W 4 AST4 1 R/W 3 AST3 1 R/W 2 AST2 1 R/W 1 AST1 1 R/W 0 AST0 1 R/W Initial value : R/W : ASTCR is an 8-bit readable/writable register that designates each area as either a 2-state access space or a 3-state access space. ASTCR sets the number of access states for the external memory space. The number of access states for on-chip memory and internal I/O registers is fixed regardless of the settings in ASTCR. In normal mode*, the settings of bits AST7 to AST1 have no effect on operation. ASTCR is initialized to H'FF by a power-on reset and in hardware standby mode. It is not initialized by a manual reset or in software standby mode. Bits 7 to 0--Area 7 to 0 Access State Control (AST7 to AST0): These bits select whether the corresponding area is to be designated as a 2-state access space or a 3-state access space. In normal mode*, only part of area 0 is enabled, and the AST0 bit selects whether external space is to be designated for 2-state access or 3-state access. Wait state insertion is enabled or disabled at the same time. Note: * ZTAT, mask ROM, and ROMless versions only. Bit n ASTn 0 1 Description Area n is designated for 2-state access Wait state insertion in area n external space is disabled Area n is designated for 3-state access Wait state insertion in area n external space is enabled (Initial value) (n = 7 to 0) 135 6.2.3 Wait Control Registers H and L (WCRH, WCRL) WCRH and WCRL are 8-bit readable/writable registers that select the number of program wait states for each area. In normal mode*, only part of area is 0 is enabled, and bits W01 and W00 select the number of program wait states for the external space . The settings of bits W71, W70 to W11, and W10 have no effect on operation. Program waits are not inserted in the case of on-chip memory or internal I/O registers. WCRH and WCRL are initialized to H'FF by a power-on reset and in hardware standby mode. They are not initialized by a manual reset or in software standby mode. Note: * ZTAT, mask ROM, and ROMless versions only. (1) WCRH Bit : 7 W71 Initial value : R/W : 1 R/W 6 W70 1 R/W 5 W61 1 R/W 4 W60 1 R/W 3 W51 1 R/W 2 W50 1 R/W 1 W41 1 R/W 0 W40 1 R/W Bits 7 and 6--Area 7 Wait Control 1 and 0 (W71, W70): These bits select the number of program wait states when area 7 in external space is accessed while the AST7 bit in ASTCR is set to 1. Bit 7 W71 0 Bit 6 W70 0 1 1 0 1 Description Program wait not inserted when external space area 7 is accessed 1 program wait state inserted when external space area 7 is accessed 2 program wait states inserted when external space area 7 is accessed 3 program wait states inserted when external space area 7 is accessed (Initial value) 136 Bits 5 and 4--Area 6 Wait Control 1 and 0 (W61, W60): These bits select the number of program wait states when area 6 in external space is accessed while the AST6 bit in ASTCR is set to 1. Bit 5 W61 0 Bit 4 W60 0 1 1 0 1 Description Program wait not inserted when external space area 6 is accessed 1 program wait state inserted when external space area 6 is accessed 2 program wait states inserted when external space area 6 is accessed 3 program wait states inserted when external space area 6 is accessed (Initial value) Bits 3 and 2--Area 5 Wait Control 1 and 0 (W51, W50): These bits select the number of program wait states when area 5 in external space is accessed while the AST5 bit in ASTCR is set to 1. Bit 3 W51 0 Bit 2 W50 0 1 1 0 1 Description Program wait not inserted when external space area 5 is accessed 1 program wait state inserted when external space area 5 is accessed 2 program wait states inserted when external space area 5 is accessed 3 program wait states inserted when external space area 5 is accessed (Initial value) Bits 1 and 0--Area 4 Wait Control 1 and 0 (W41, W40): These bits select the number of program wait states when area 4 in external space is accessed while the AST4 bit in ASTCR is set to 1. Bit 1 W41 0 Bit 0 W40 0 1 1 0 1 Description Program wait not inserted when external space area 4 is accessed 1 program wait state inserted when external space area 4 is accessed 2 program wait states inserted when external space area 4 is accessed 3 program wait states inserted when external space area 4 is accessed (Initial value) 137 (2) WCRL Bit : 7 W31 Initial value : R/W : 1 R/W 6 W30 1 R/W 5 W21 1 R/W 4 W20 1 R/W 3 W11 1 R/W 2 W10 1 R/W 1 W01 1 R/W 0 W00 1 R/W Bits 7 and 6--Area 3 Wait Control 1 and 0 (W31, W30): These bits select the number of program wait states when area 3 in external space is accessed while the AST3 bit in ASTCR is set to 1. Bit 7 W31 0 Bit 6 W30 0 1 1 0 1 Description Program wait not inserted when external space area 3 is accessed 1 program wait state inserted when external space area 3 is accessed 2 program wait states inserted when external space area 3 is accessed 3 program wait states inserted when external space area 3 is accessed (Initial value) Bits 5 and 4--Area 2 Wait Control 1 and 0 (W21, W20): These bits select the number of program wait states when area 2 in external space is accessed while the AST2 bit in ASTCR is set to 1. Bit 5 W21 0 Bit 4 W20 0 1 1 0 1 Description Program wait not inserted when external space area 2 is accessed 1 program wait state inserted when external space area 2 is accessed 2 program wait states inserted when external space area 2 is accessed 3 program wait states inserted when external space area 2 is accessed (Initial value) 138 Bits 3 and 2--Area 1 Wait Control 1 and 0 (W11, W10): These bits select the number of program wait states when area 1 in external space is accessed while the AST1 bit in ASTCR is set to 1. Bit 3 W11 0 Bit 2 W10 0 1 1 0 1 Description Program wait not inserted when external space area 1 is accessed 1 program wait state inserted when external space area 1 is accessed 2 program wait states inserted when external space area 1 is accessed 3 program wait states inserted when external space area 1 is accessed (Initial value) Bits 1 and 0--Area 0 Wait Control 1 and 0 (W01, W00): These bits select the number of program wait states when area 0 in external space is accessed while the AST0 bit in ASTCR is set to 1. Bit 1 W01 0 Bit 0 W00 0 1 1 0 1 Description Program wait not inserted when external space area 0 is accessed 1 program wait state inserted when external space area 0 is accessed 2 program wait states inserted when external space area 0 is accessed 3 program wait states inserted when external space area 0 is accessed (Initial value) 6.2.4 Bit Bus Control Register H (BCRH) : 7 ICIS1 1 R/W 6 ICIS0 1 R/W 5 0 R/W 4 1 R/W 3 0 R/W 2 -- 0 R/W 1 -- 0 R/W 0 -- 0 R/W BRSTRM BRSTS1 BRSTS0 Initial value : R/W : BCRH is an 8-bit readable/writable register that selects enabling or disabling of idle cycle insertion, and the memory interface for areas 2 to 5 and area 0. BCRH is initialized to H'D0 by a power-on reset and in hardware standby mode. It is not initialized by a manual reset or in software standby mode. 139 Bit 7--Idle Cycle Insert 1 (ICIS1): Selects whether or not one idle cycle state is to be inserted between bus cycles when successive external read cycles are performed in different areas. Bit 7 ICIS1 0 1 Description Idle cycle not inserted in case of successive external read cycles in different areas Idle cycle inserted in case of successive external read cycles in different areas (Initial value) Bit 6--Idle Cycle Insert 0 (ICIS0): Selects whether or not one idle cycle state is to be inserted between bus cycles when successive external read and external write cycles are performed . Bit 6 ICIS0 0 1 Description Idle cycle not inserted in case of successive external read and external write cycles Idle cycle inserted in case of successive external read and external write cycles (Initial value) Bit 5--Burst ROM Enable (BRSTRM): Selects whether area 0 is used as a burst ROM interface. In normal mode*, the selection can be made from the entire external space . Burst ROM interface and PSRAM burst operation cannot be set at the same time. Note: * ZTAT, mask ROM, and ROMless versions only. Bit 5 BRSTRM 0 1 Description Area 0 is basic bus interface Area 0 is burst ROM interface (Initial value) Bit 4--Burst Cycle Select 1 (BRSTS1): Selects the number of burst cycles for the burst ROM interface. Bit 4 BRSTS1 0 1 Description Burst cycle comprises 1 state Burst cycle comprises 2 states (Initial value) 140 Bit 3--Burst Cycle Select 0 (BRSTS0): Selects the number of words that can be accessed in a burst ROM interface burst access. Bit 3 BRSTS0 0 1 Description Max. 4 words in burst access Max. 8 words in burst access (Initial value) Bits 2 to 0--Reserved: Only 0 should be written to these bits. 6.2.5 Bit Bus Control Register L (BCRL) : 7 BRLE 0 R/W 6 -- 0 R/W 5 EAE 1 R/W 4 -- 1 R/W 3 -- 1 R/W 2 -- 1 R/W 1 -- 0 R/W 0 WAITE 0 R/W Initial value : R/W : BCRL is an 8-bit readable/writable register that performs selection of the external bus-released state protocol, and enabling or disabling of WAIT pin input. BCRL is initialized to H'3C by a power-on reset and in hardware standby mode. It is not initialized by a manual reset or in software standby mode. Bit 7--Bus Release Enable (BRLE): Enables or disables external bus release. Bit 7 BRLE 0 1 Description External bus release is disabled. BREQ and BACK can be used as I/O ports. (Initial value) External bus release is enabled. Bit 6--Reserved: Only 0 should be written to this bit. Bit 5--External Address Enable (EAE): Selects whether addresses H'010000 to H'01FFFF are to be internal addresses or external addresses. This setting is invalid in normal mode*. Note: * ZTAT, mask ROM, and ROMless versions only. 141 Bit 5 EAE 0 Description Addresses H'010000 to H'01FFFF are in on-chip ROM (in the H8S/2345) Addresses H'010000 to H'017FFF are in on-chip ROM and addresses H'018000 to H'01FFFF are a reserved area (in the H8S/2344) Addresses H'010000 to H'01FFFF are a reserved area (in the H8S/2343 and H8S/2341) 1 Addresses H'010000 to H'01FFFF are external addresses (external expansion mode) or a reserved area* (single-chip mode) (Initial value) Note: * Reserved areas should not be accessed. Bits 4 to 2--Reserved: Only 1 should be written to these bits. Bit 1--Reserved: Only 0 should be written to this bit. Bit 0--WAIT Pin Enable (WAITE): Selects enabling or disabling of wait input by the WAIT pin. Bit 0 WAITE 0 1 Description Wait input by WAIT pin disabled. WAIT pin can be used as I/O port. Wait input by WAIT pin enabled (Initial value) 6.3 6.3.1 Overview of Bus Control Area Partitioning In advanced mode, the bus controller partitions the 16 Mbytes address space into eight areas, 0 to 7, in 2-Mbyte units, and performs bus control for external space in area units. In normal mode*, it controls a 64-kbyte address space comprising part of area 0. Figure 6.2 shows an outline of the memory map. Chip select signals (CS0 to CS3) can be output for areas 0 to 3. Note: * ZTAT, mask ROM, and ROMless versions only. 142 H'000000 Area 0 (2Mbytes) H'1FFFFF H'200000 Area 1 (2Mbytes) H'3FFFFF H'400000 Area 2 (2Mbytes) H'5FFFFF H'600000 Area 3 (2Mbytes) H'7FFFFF H'800000 Area 4 (2Mbytes) H'9FFFFF H'A00000 Area 5 (2Mbytes) H'BFFFFF H'C00000 Area 6 (2Mbytes) H'DFFFFF H'E00000 Area 7 (2Mbytes) H'FFFFFF H'0000 H'FFFF (1) Advanced mode (2) Normal mode* Note: * ZTAT, mask ROM, and ROMless versions only. Figure 6.2 Overview of Area Partitioning 143 6.3.2 Bus Specifications The external space bus specifications consist of three elements: bus width, number of access states, and number of program wait states. The bus width and number of access states for on-chip memory and internal I/O registers are fixed, and are not affected by the bus controller. (1) Bus Width: A bus width of 8 or 16 bits can be selected with ADWCR. An area for which an 8-bit bus is selected functions as an 8-bit access space, and an area for which a 16-bit bus is selected functions as a16-bit access space. If all areas are designated for 8-bit access, 8-bit bus mode is set; if any area is designated for 16-bit access, 16-bit bus mode is set. When the burst ROM interface is designated, 16-bit bus mode is always set. (2) Number of Access States: Two or three access states can be selected with ASTCR. An area for which 2-state access is selected functions as a 2-state access space, and an area for which 3state access is selected functions as a 3-state access space. With the burst ROM interface, the number of access states may be determined without regard to ASTCR. When 2-state access space is designated, wait insertion is disabled. (3) Number of Program Wait States: When 3-state access space is designated by ASTCR, the number of program wait states to be inserted automatically is selected with WCRH and WCRL. From 0 to 3 program wait states can be selected. Table 6.3 shows the bus specifications for each basic bus interface area. 144 Table 6.3 ABWCR ABWn 0 Bus Specifications for Each Area (Basic Bus Interface) ASTCR ASTn 0 1 WCRH, WCRL Wn1 -- 0 Wn0 -- 0 1 1 0 1 Bus Specifications (Basic Bus Interface) Bus Width 16 Program Wait Access States States 2 3 0 0 1 2 3 8 2 3 0 0 1 2 3 1 0 1 -- 0 -- 0 1 1 0 1 6.3.3 Memory Interfaces The H8S/2345 Series memory interfaces comprise a basic bus interface that allows direct connection of ROM, SRAM, and so on, and a burst ROM interface (for area 0 only) that allows direct connection of burst ROM. An area for which the basic bus interface is designated functions as normal space, and an area for which the burst ROM interface is designated functions as burst ROM space. 6.3.4 Advanced Mode The initial state of each area is basic bus interface, 3-state access space. The initial bus width is selected according to the operating mode. The bus specifications described here cover basic items only, and the sections on each memory interface (6.4 and 6.5) should be referred to for further details. Area 0: Area 0 includes on-chip ROM, and in ROM-disabled expansion mode, all of area 0 is external space. In ROM-enabled expansion mode, the space excluding on-chip ROM is external space. When area 0 external space is accessed, the CS0 signal can be output. Either basic bus interface or burst ROM interface can be selected for area 0. 145 Areas 1 to 6: In external expansion mode, all of areas 1 to 6 is external space. When area 1 to 3 external space is accessed, the CS1 to CS3 pin signals respectively can be output. Only the basic bus interface can be used for areas 1 to 6. Area 7: Area 7 includes the on-chip RAM and internal I/O registers. In external expansion mode, the space excluding the on-chip RAM and internal I/O registers is external space. The on-chip RAM is enabled when the RAME bit in the system control register (SYSCR) is set to 1; when the RAME bit is cleared to 0, the on-chip RAM is disabled and the corresponding space becomes external space. Only the basic bus interface can be used for the area 7 memory interface. 6.3.5 Areas in Normal Mode (ZTAT, Mask ROM, and ROMless versions Only) In normal mode, a 64-kbyte address space comprising part of area 0 is controlled. Area partitioning is not performed in normal mode. In ROM-disabled expansion mode, the space excluding the on-chip RAM and internal I/O registers is external space. In ROM-enabled expansion mode the space excluding the on-chip ROM, on-chip RAM, and internal I/O registers is external space. The on-chip RAM is enabled when the RAME bit in the system control register (SYSCR) is set to 1; when the RAME bit is cleared to 0, the on-chip RAM is disabled and the corresponding space becomes external space . When external space is accessed, the CS0 signal can be output. The basic bus interface or burst ROM interface can be selected. 146 6.3.6 Chip Select Signals The H8S/2345 Series can output chip select signals (CS0 to CS3) to areas 0 to 3, the signal being driven low when the corresponding external space area is accessed. In normal mode*, only the CS0 signal can be output. Figure 6.3 shows an example of CSn (n = 0 to 3) output timing. Enabling or disabling of the CSn signal is performed by setting the data direction register (DDR) for the port corresponding to the particular CSn pin. In ROM-disabled expansion mode, the CS0 pin is placed in the output state after a power-on reset. Pins CS1 to CS3 are placed in the input state after a power-on reset, and so the corresponding DDR should be set to 1 when outputting signals CS1 to CS3. In ROM-enabled expansion mode, pins CS0 to CS3 are all placed in the input state after a poweron reset, and so the corresponding DDR should be set to 1 when outputting signals CS0 to CS3. For details, see section 8, I/O Ports. Note: * ZTAT, mask ROM, and ROMless versions only. Bus cycle T1 o T2 T3 Address bus Area n external address CSn Figure 6.3 CSn Signal Output Timing (n = 0 to 3) 147 6.4 6.4.1 Basic Bus Interface Overview The basic bus interface enables direct connection of ROM, SRAM, and so on. The bus specifications can be selected with ABWCR, ASTCR, WCRH, and WCRL (see table 6.3). 6.4.2 Data Size and Data Alignment Data sizes for the CPU and other internal bus masters are byte, word, and longword. The bus controller has a data alignment function, and when accessing external space, controls whether the upper data bus (D15 to D8) or lower data bus (D7 to D0) is used according to the bus specifications for the area being accessed (8-bit access space or 16-bit access space) and the data size. 8-Bit Access Space: Figure 6.4 illustrates data alignment control for the 8-bit access space. With the 8-bit access space, the upper data bus (D15 to D8) is always used for accesses. The amount of data that can be accessed at one time is one byte: a word transfer instruction is performed as two byte accesses, and a longword transfer instruction, as four byte accesses. Upper data bus Lower data bus D15 D8 D7 D0 Byte size 1st bus cycle 2nd bus cycle 1st bus cycle Longword size 2nd bus cycle 3rd bus cycle 4th bus cycle Word size Figure 6.4 Access Sizes and Data Alignment Control (8-Bit Access Space) 148 16-Bit Access Space: Figure 6.5 illustrates data alignment control for the 16-bit access space. With the 16-bit access space, the upper data bus (D15 to D8) and lower data bus (D7 to D0) are used for accesses. The amount of data that can be accessed at one time is one byte or one word, and a longword transfer instruction is executed as two word transfer instructions. In byte access, whether the upper or lower data bus is used is determined by whether the address is even or odd. The upper data bus is used for an even address, and the lower data bus for an odd address. Upper data bus Lower data bus D15 D8 D7 D0 Byte size Byte size Word size Longword size 1st bus cycle 2nd bus cycle * Even address * Odd address Figure 6.5 Access Sizes and Data Alignment Control (16-Bit Access Space) 149 6.4.3 Valid Strobes Table 6.4 shows the data buses used and valid strobes for the access spaces. In a read, the RD signal is valid without discrimination between the upper and lower halves of the data bus. In a write, the HWR signal is valid for the upper half of the data bus, and the LWR signal for the lower half. Table 6.4 Area 8-bit access space Data Buses Used and Valid Strobes Access Read/ Size Write Byte Read Write Read Address -- -- Even Odd Write Even Odd Word Read Write -- -- HWR LWR RD Valid Strobe RD HWR RD Valid Invalid Valid Hi-Z Valid Upper Data Bus (D15 to D8) Valid Lower data bus (D7 to D0) Invalid Hi-Z Invalid Valid Hi-Z Valid Valid Valid 16-bit access Byte space HWR, LWR Valid Note: Hi-Z: High impedance. Invalid: Input state; input value is ignored. 150 6.4.4 Basic Timing 8-Bit 2-State Access Space: Figure 6.6 shows the bus timing for an 8-bit 2-state access space. When an 8-bit access space is accessed , the upper half (D 15 to D8) of the data bus is used. The LWR pin is fixed high. Wait states cannot be inserted. Bus cycle T1 o T2 Address bus CSn AS RD Read D15 to D8 Valid D7 to D0 Invalid HWR LWR Write D15 to D8 High Valid D7 to D0 High impedance Note: n = 0 to 3 Figure 6.6 Bus Timing for 8-Bit 2-State Access Space 151 8-Bit 3-State Access Space: Figure 6.7 shows the bus timing for an 8-bit 3-state access space. When an 8-bit access space is accessed, the upper half (D15 to D8) of the data bus is used. The LWR pin is fixed high. Wait states can be inserted. Bus cycle T1 o T2 T3 Address bus CSn AS RD Read D15 to D8 Valid D7 to D0 Invalid HWR LWR Write D15 to D8 High Valid High impedance D7 to D0 Note: n = 0 to 3 Figure 6.7 Bus Timing for 8-Bit 3-State Access Space 152 16-Bit 2-State Access Space: Figures 6.8 to 6.10 show bus timings for a 16-bit 2-state access space. When a 16-bit access space is accessed, the upper half (D15 to D8) of the data bus is used for the even address, and the lower half (D7 to D0) for the odd address. Wait states cannot be inserted. Bus cycle T1 o T2 Address bus CSn AS RD Read D15 to D8 Valid D7 to D0 Invalid HWR LWR Write D15 to D8 High Valid D7 to D0 High impedance Note: n = 0 to 3 Figure 6.8 Bus Timing for 16-Bit 2-State Access Space (1) (Even Address Byte Access) 153 Bus cycle T1 o T2 Address bus CSn AS RD Read D15 to D8 Invalid D7 to D0 Valid HWR High LWR Write D15 to D8 High impedance D7 to D0 Valid Note: n = 0 to 3 Figure 6.9 Bus Timing for 16-Bit 2-State Access Space (2) (Odd Address Byte Access) 154 Bus cycle T1 o T2 Address bus CSn AS RD Read D15 to D8 Valid D7 to D0 Valid HWR LWR Write D15 to D8 Valid D7 to D0 Valid Note: n = 0 to 3 Figure 6.10 Bus Timing for 16-Bit 2-State Access Space (3) (Word Access) 155 16-Bit 3-State Access Space: Figures 6.11 to 6.13 show bus timings for a 16-bit 3-state access space. When a 16-bit access space is accessed , the upper half (D15 to D8) of the data bus is used for the even address, and the lower half (D7 to D0) for the odd address. Wait states can be inserted. Bus cycle T1 o T2 T3 Address bus CSn AS RD Read D15 to D8 Valid D7 to D0 Invalid HWR LWR Write D15 to D8 High Valid High impedance D7 to D0 Note: n = 0 to 3 Figure 6.11 Bus Timing for 16-Bit 3-State Access Space (1) (Even Address Byte Access) 156 Bus cycle T1 o T2 T3 Address bus CSn AS RD Read D15 to D8 Invalid D7 to D0 Valid HWR High LWR Write D15 to D8 High impedance D7 to D0 Note: n = 0 to 3 Valid Figure 6.12 Bus Timing for 16-Bit 3-State Access Space (2) (Odd Address Byte Access) 157 Bus cycle T1 o T2 T3 Address bus CSn AS RD Read D15 to D8 Valid D7 to D0 Valid HWR LWR Write D15 to D8 Valid D7 to D0 Note: n = 0 to 3 Valid Figure 6.13 Bus Timing for 16-Bit 3-State Access Space (3) (Word Access) 158 6.4.5 Wait Control When accessing external space, the H8S/2345 Series can extend the bus cycle by inserting one or more wait states (Tw). There are two ways of inserting wait states: program wait insertion and pin wait insertion using the WAIT pin. Program Wait Insertion From 0 to 3 wait states can be inserted automatically between the T2 state and T3 state on an individual area basis in 3-state access space, according to the settings of BWCRH and BWCRL. Pin Wait Insertion Setting the WAITE bit in BCRL to 1 enables wait insertion by means of the WAIT pin. Program wait insertion is first carried out according to the settings in WCRH and WCRL. Then , if the WAIT pin is low at the falling edge of o in the last T2 or Tw state, a Tw state is inserted. If the WAIT pin is held low, Tw states are inserted until it goes high. This is useful when inserting four or more Tw states, or when changing the number of Tw states for different external devices. The WAITE bit setting applies to all areas. 159 Figure 6.14 shows an example of wait state insertion timing. By program wait T1 o T2 Tw By WAIT pin Tw Tw T3 WAIT Address bus AS RD Read Data bus Read data HWR, LWR Write Data bus Write data Note: indicates the timing of WAIT pin sampling. Figure 6.14 Example of Wait State Insertion Timing The settings after a power-on reset are: 3-state access, 3 program wait state insertion, and WAIT input disabled. When a manual reset is performed, the contents of bus controller registers are retained, and the wait control settings remain the same as before the reset. 160 6.5 6.5.1 Burst ROM Interface Overview With the H8S/2345 Series, external space area 0 can be designated as burst ROM space, and burst ROM interfacing can be performed. The burst ROM space interface enables 16-bit configuration ROM with burst access capability to be accessed at high speed. Area 0 can be designated as burst ROM space by means of the BRSTRM bit in BCRH. Consecutive burst accesses of a maximum of 4 words or 8 words can be performed for CPU instruction fetches only. One or two states can be selected for burst access. 6.5.2 Basic Timing The number of states in the initial cycle (full access) of the burst ROM interface is in accordance with the setting of the AST0 bit in ASTCR. Also, when the AST0 bit is set to 1, wait state insertion is possible. One or two states can be selected for the burst cycle, according to the setting of the BRSTS1 bit in BCRH. Wait states cannot be inserted. When area 0 is designated as burst ROM space, it becomes 16-bit access space regardless of the setting of the ABW0 bit in ABWCR. When the BRSTS0 bit in BCRH is cleared to 0, burst access of up to 4 words is performed; when the BRSTS0 bit is set to 1, burst access of up to 8 words is performed. The basic access timing for burst ROM space is shown in figures 6.15 (a) and (b). The timing shown in figure 6.15 (a) is for the case where the AST0 and BRSTS1 bits are both set to 1, and that in figure 6.15 (b) is for the case where both these bits are cleared to 0. 161 Full access T1 o T2 T3 T1 Burst access T2 T1 T2 Address bus Only lower address changed CS0 AS RD Data bus Read data Read data Read data Figure 6.15 (a) Example of Burst ROM Access Timing (When AST0 = BRSTS1 = 1) 162 Full access T1 T2 Burst access T1 T1 o Address bus Only lower address changed CS0 AS RD Data bus Read data Read data Read data Figure 6.15 (b) Example of Burst ROM Access Timing (When AST0 = BRSTS1 = 0) 6.5.3 Wait Control As with the basic bus interface, either program wait insertion or pin wait insertion using the WAIT pin can be used in the initial cycle (full access) of the burst ROM interface. See section 6.4.5, Wait Control. Wait states cannot be inserted in a burst cycle. 163 6.6 6.6.1 Idle Cycle Operation When the H8S/2345 Series accesses external space , it can insert a 1-state idle cycle (T I) between bus cycles in the following two cases: (1) when read accesses between different areas occur consecutively, and (2) when a write cycle occurs immediately after a read cycle. By inserting an idle cycle it is possible, for example, to avoid data collisions between ROM, with a long output floating time, and high-speed memory, I/O interfaces, and so on. (1) Consecutive Reads between Different Areas If consecutive reads between different areas occur while the ICIS1 bit in BCRH is set to 1, an idle cycle is inserted at the start of the second read cycle. This is enabled in advanced mode. Figure 6.16 shows an example of the operation in this case. In this example, bus cycle A is a read cycle from ROM with a long output floating time, and bus cycle B is a read cycle from SRAM, each being located in a different area. In (a), an idle cycle is not inserted, and a collision occurs in cycle B between the read data from ROM and that from SRAM. In (b), an idle cycle is inserted, and a data collision is prevented. Bus cycle A T1 o Address bus CS (area A) CS (area B) RD Data bus T2 T3 Bus cycle B T1 T2 o Address bus CS (area A) Bus cycle A T1 T2 T3 Bus cycle B TI T1 T2 , CS (area B) RD Data bus Data collision (b) Idle cycle inserted (Initial value ICIS1 = 1) Long output floating time (a) Idle cycle not inserted (ICIS1 = 0) Figure 6.16 Example of Idle Cycle Operation (1) 164 (2) Write after Read If an external write occurs after an external read while the ICIS0 bit in BCRH is set to 1, an idle cycle is inserted at the start of the write cycle. Figure 6.17 shows an example of the operation in this case. In this example, bus cycle A is a read cycle from ROM with a long output floating time, and bus cycle B is a CPU write cycle. In (a), an idle cycle is not inserted, and a collision occurs in cycle B between the read data from ROM and the CPU write data. In (b), an idle cycle is inserted, and a data collision is prevented. Bus cycle A T1 o Address bus CS (area A) CS (area B) RD HWR Data bus T2 T3 Bus cycle B T1 T2 o Address bus CS (area A) Bus cycle A T1 T2 T3 Bus cycle B TI T1 T2 Long output floating time , CS (area B) RD HWR Data bus Data collision (b) Idle cycle inserted (Initial value ICIS1 = 1) (a) Idle cycle not inserted (ICIS1 = 0) Figure 6.17 Example of Idle Cycle Operation (2) 165 (3) Relationship between Chip Select (CS) Signal and Read (RD) Signal Depending on the system's load conditions, the RD signal may lag behind the CS signal. An example is shown in figure 6.18. In this case, with the setting for no idle cycle insertion (a), there may be a period of overlap between the bus cycle A RD signal and the bus cycle B CS signal. Setting idle cycle insertion, as in (b), however, will prevent any overlap between the RD and CS signals. In the initial state after reset release, idle cycle insertion (b) is set. Bus cycle A T1 o Address bus CS (area A) CS (area B) RD T2 T3 Bus cycle B T1 T2 o Address bus CS (area A) CS (area B) RD Bus cycle A T1 T2 T3 Bus cycle B TI T1 T2 Possibility of overlap between CS (area B) and RD (a) Idle cycle not inserted (ICIS1 = 0) (b) Idle cycle inserted (Initial value ICIS1 = 1) Figure 6.18 Relationship between Chip Select (CS) and Read (RD) 166 6.6.2 Pin States in Idle Cycle Table 6.5 shows pin states in an idle cycle. Table 6.5 Pins A23 to A 0 D15 to D0 CSn AS RD HWR LWR Pin States in Idle Cycle Pin State Contents of next bus cycle High impedance High High High High High 6.7 6.7.1 Bus Release Overview The H8S/2345 Series can release the external bus in response to a bus request from an external device. In the external bus released state, the internal bus master continues to operate as long as there is no external access. 6.7.2 Operation In external expansion mode, the bus can be released to an external device by setting the BRLE bit in BCRL to 1. Driving the BREQ pin low issues an external bus request to the H8S/2345 Series. When the BREQ pin is sampled, at the prescribed timing the BACK pin is driven low, and the address bus, data bus, and bus control signals are placed in the high-impedance state, establishing the external bus-released state. In the external bus released state, an internal bus master can perform accesses using the internal bus. When an internal bus master wants to make an external access, it temporarily defers activation of the bus cycle, and waits for the bus request from the external bus master to be dropped. When the BREQ pin is driven high, the BACK pin is driven high at the prescribed timing and the external bus released state is terminated. 167 In the event of simultaneous external bus release request and external access request generation, the order of priority is as follows: (High) External bus release > Internal bus master external access (Low) 6.7.3 Pin States in External Bus Released State Table 6.6 shows pin states in the external bus released state. Table 6.6 Pins A23 to A 0 D15 to D0 CSn AS RD HWR LWR Pin States in Bus Released State Pin State High impedance High impedance High impedance High impedance High impedance High impedance High impedance 168 6.7.4 Transition Timing Figure 6.19 shows the timing for transition to the bus-released state. CPU cycle CPU cycle T0 o T1 T2 External bus released state High impedance Address bus Address High impedance Data bus High impedance AS High impedance RD High impedance HWR, LWR BREQ BACK Minimum 1 state [1] [2] [3] [4] [5] [1] [2] [3] [4] [5] Low level of BREQ pin is sampled at rise of T2 state. BACK pin is driven low at end of CPU read cycle, releasing bus to external bus master. BREQ pin state is still sampled in external bus released state. High level of BREQ pin is sampled. BACK pin is driven high, ending bus release cycle. Figure 6.19 Bus-Released State Transition Timing 169 6.7.5 Usage Note When MSTPCR is set to H'FFFF or H'EFFF and a transition is made to sleep mode, the external bus release function halts. Therefore, MSTPCR should not be set to H'FFFF or H'EFFF if the external bus release function is to be used in sleep mode. 6.8 6.8.1 Bus Arbitration Overview The H8S/2345 Series has a bus arbiter that arbitrates bus master operations. There are two bus masters, the CPU and DTC, which perform read/write operations when they have possession of the bus. Each bus master requests the bus by means of a bus request signal. The bus arbiter determines priorities at the prescribed timing, and permits use of the bus by means of a bus request acknowledge signal. The selected bus master then takes possession of the bus and begins its operation. 6.8.2 Operation The bus arbiter detects the bus masters' bus request signals, and if the bus is requested, sends a bus request acknowledge signal to the bus master making the request. If there are bus requests from more than one bus master, the bus request acknowledge signal is sent to the one with the highest priority. When a bus master receives the bus request acknowledge signal, it takes possession of the bus until that signal is canceled. The order of priority of the bus masters is as follows: (High) DTC > CPU (Low) An internal bus access by an internal bus master, and external bus release, can be executed in parallel. In the event of simultaneous external bus release request, and internal bus master external access request generation, the order of priority is as follows: (High) External bus release > Internal bus master external access (Low) 170 6.8.3 Bus Transfer Timing Even if a bus request is received from a bus master with a higher priority than that of the bus master that has acquired the bus and is currently operating, the bus is not necessarily transferred immediately. There are specific times at which each bus master can relinquish the bus. CPU: The CPU is the lowest-priority bus master, and if a bus request is received from the DTC, the bus arbiter transfers the bus to the bus master that issued the request. The timing for transfer of the bus is as follows: * The bus is transferred at a break between bus cycles. However, if a bus cycle is executed in discrete operations, as in the case of a longword-size access, the bus is not transferred between the operations. See Appendix A-5, Bus States During Instruction Execution, for timings at which the bus is not transferred. * If the CPU is in sleep mode, it transfers the bus immediately. DTC: The DTC sends the bus arbiter a request for the bus when an activation request is generated. The DTC can release the bus after a vector read, a register information read (3 states), a single data transfer, or a register information write (3 states). It does not release the bus during a register information read (3 states), a single data transfer, or a register information write (3 states). 6.8.4 External Bus Release Usage Note External bus release can be performed on completion of an external bus cycle. The RD signal and CS0 to CS3 signals remain low until the end of the external bus cycle. Therefore, when external bus release is performed, the RD and CS0 to CS3 signals may change from the low level to the high-impedance state. 6.9 Resets and the Bus Controller In a power-on reset, the H8S/2345, including the bus controller, enters the reset state at that point, and an executing bus cycle is discontinued. In a manual reset, the bus controller's registers and internal state are maintained, and an executing external bus cycle is completed. In this case, WAIT input is ignored and write data is not guaranteed. 171 Section 7 Data Transfer Controller 7.1 Overview The H8S/2345 Series includes a data transfer controller (DTC). The DTC can be activated by an interrupt or software, to transfer data. 7.1.1 Features The features of the DTC are: * Transfer possible over any number of channels Transfer information is stored in memory One activation source can trigger a number of data transfers (chain transfer) * Wide range of transfer modes Normal, repeat, and block transfer modes available Incrementing, decrementing, and fixing of source and destination addresses can be selected * Direct specification of 16-Mbyte address space possible 24-bit transfer source and destination addresses can be specified * Transfer can be set in byte or word units * A CPU interrupt can be requested for the interrupt that activated the DTC An interrupt request can be issued to the CPU after one data transfer ends An interrupt request can be issued to the CPU after the specified data transfers have completely ended * Activation by software is possible * Module stop mode can be set The initial setting enables DTC registers to be accessed. DTC operation is halted by setting module stop mode. 173 7.1.2 Block Diagram Figure 7.1 shows a block diagram of the DTC. The DTC's register information is stored in the on-chip RAM*. A 32-bit bus connects the DTC to the on-chip RAM (1 kbyte), enabling 32-bit/1-state reading and writing of the DTC register information and hence helping to increase processing speed. Note: * When the DTC is used, the RAME bit in SYSCR must be set to 1. Internal address bus Interrupt controller DTC Register information On-chip RAM CPU interrupt request Legend MRA, MRB CRA, CRB SAR DAR DTCERA to DTCERE DTVECR DTC service request : DTC mode registers A and B : DTC transfer count registers A and B : DTC source address register : DTC destination address register : DTC enable registers A to E : DTC vector register Figure 7.1 Block Diagram of DTC 174 MRA MRB CRA CRB DAR SAR Interrupt request Control logic DTCERA to DTCERE DTVECR Internal data bus 7.1.3 Register Configuration Table 7.1 summarizes the DTC registers. Table 7.1 Name DTC mode register A DTC mode register B DTC source address register DTC destination address register DTC transfer count register A DTC transfer count register B DTC enable registers DTC vector register Module stop control register DTC Registers Abbreviation MRA MRB SAR DAR CRA CRB DTCER DTVECR MSTPCR R/W --*2 --*2 --*2 --*2 --*2 --*2 R/W R/W R/W Initial Value Undefined Undefined Undefined Undefined Undefined Undefined H'00 H'00 H'3FFF Address*1 --*3 --*3 --*3 --*3 --*3 --*3 H'FF30 to H'FF34 H'FF37 H'FF3C Notes: 1. Lower 16 bits of the address. 2. Registers within the DTC cannot be read or written to directly. 3. Register information is located in on-chip RAM addresses H'F800 to H'FBFF. It cannot be located in external space. When the DTC is used, do not clear the RAME bit in SYSCR to 0. 175 7.2 7.2.1 Register Descriptions DTC Mode Register A (MRA) MRA is an 8-bit register that controls the DTC operating mode. Bit : 7 SM1 Initial value : R/W : Undefined -- 6 SM0 Undefined -- 5 DM1 Undefined -- 4 DM0 Undefined -- 3 MD1 Undefined -- 2 MD0 Undefined -- 1 DTS Undefined -- 0 Sz Undefined -- Bits 7 and 6--Source Address Mode 1 and 0 (SM1, SM0): These bits specify whether SAR is to be incremented, decremented, or left fixed after a data transfer. Bit 7 SM1 0 1 Bit 6 SM0 -- 0 1 Description SAR is fixed SAR is incremented after a transfer (by +1 when Sz = 0; by +2 when Sz = 1) SAR is decremented after a transfer (by -1 when Sz = 0; by -2 when Sz = 1) Bits 5 and 4--Destination Address Mode 1 and 0 (DM1, DM0): These bits specify whether DAR is to be incremented, decremented, or left fixed after a data transfer. Bit 5 DM1 0 1 Bit 4 DM0 -- 0 1 Description DAR is fixed DAR is incremented after a transfer (by +1 when Sz = 0; by +2 when Sz = 1) DAR is decremented after a transfer (by -1 when Sz = 0; by -2 when Sz = 1) 176 Bits 3 and 2--DTC Mode (MD1, MD0): These bits specify the DTC transfer mode. Bit 3 MD1 0 Bit 2 MD0 0 1 1 0 1 Description Normal mode Repeat mode Block transfer mode -- Bit 1--DTC Transfer Mode Select (DTS): Specifies whether the source side or the destination side is set to be a repeat area or block area, in repeat mode or block transfer mode. Bit 1 DTS 0 1 Description Destination side is repeat area or block area Source side is repeat area or block area Bit 0--DTC Data Transfer Size (Sz): Specifies the size of data to be transferred. Bit 0 Sz 0 1 Description Byte-size transfer Word-size transfer 177 7.2.2 Bit DTC Mode Register B (MRB) : 7 CHNE Undefined -- 6 DISEL Undefined -- 5 -- Undefined -- 4 -- Undefined -- 3 -- Undefined -- 2 -- Undefined -- 1 -- Undefined -- 0 -- Undefined -- Initial value: R/W : MRB is an 8-bit register that controls the DTC operating mode. Bit 7--DTC Chain Transfer Enable (CHNE): Specifies chain transfer. With chain transfer, a number of data transfers can be performed consecutively in response to a single transfer request. In data transfer with CHNE set to 1, determination of the end of the specified number of transfers, clearing of the interrupt source flag, and clearing of DTCER is not performed. Bit 7 CHNE 0 1 Description End of DTC data transfer (activation waiting state is entered) DTC chain transfer (new register information is read, then data is transferred) Bit 6--DTC Interrupt Select (DISEL): Specifies whether interrupt requests to the CPU are disabled or enabled after a data transfer. Bit 6 DISEL 0 1 Description After a data transfer ends, the CPU interrupt is disabled unless the transfer counter is 0 (the DTC clears the interrupt source flag of the activating interrupt to 0) After a data transfer ends, the CPU interrupt is enabled (the DTC does not clear the interrupt source flag of the activating interrupt to 0) Bits 5 to 0--Reserved: These bits have no effect on DTC operation in the H8S/2345 Series, and should always be written with 0 in a write. 178 7.2.3 Bit DTC Source Address Register (SAR) : 23 22 21 20 19 4 3 2 1 0 Initial value: R/W : Unde- Unde- Unde- Unde- Undefined fined fined fined fined ---------- Unde- Unde- Unde- Unde- Undefined fined fined fined fined ---------- SAR is a 24-bit register that designates the source address of data to be transferred by the DTC. For word-size transfer, specify an even source address. 7.2.4 Bit DTC Destination Address Register (DAR) : 23 22 21 20 19 4 3 2 1 0 Initial value : R/W : Unde- Unde- Unde- Unde- Undefined fined fined fined fined ---------- Unde- Unde- Unde- Unde- Undefined fined fined fined fined ---------- DAR is a 24-bit register that designates the destination address of data to be transferred by the DTC. For word-size transfer, specify an even destination address. 7.2.5 Bit DTC Transfer Count Register A (CRA) : 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value: R/W : Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Undefined fined fined fined fined fined fined fined fined fined fined fined fined fined fined fined -------------------------------- CRAH CRAL CRA is a 16-bit register that designates the number of times data is to be transferred by the DTC. In normal mode, the entire CRA functions as a 16-bit transfer counter (1 to 65536). It is decremented by 1 every time data is transferred, and transfer ends when the count reaches H'0000. In repeat mode or block transfer mode, the CRA is divided into two parts: the upper 8 bits (CRAH) and the lower 8 bits (CRAL). CRAH holds the number of transfers while CRAL functions as an 8-bit transfer counter (1 to 256). CRAL is decremented by 1 every time data is transferred, and the contents of CRAH are sent when the count reaches H'00. This operation is repeated. 179 7.2.6 Bit DTC Transfer Count Register B (CRB) : 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value: R/W : Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Undefined fined fined fined fined fined fined fined fined fined fined fined fined fined fined fined -------------------------------- CRB is a 16-bit register that designates the number of times data is to be transferred by the DTC in block transfer mode. It functions as a 16-bit transfer counter (1 to 65536) that is decremented by 1 every time data is transferred, and transfer ends when the count reaches H'0000. 7.2.7 Bit DTC Enable Registers (DTCER) : 7 DTCE7 0 R/W 6 DTCE6 0 R/W 5 DTCE5 0 R/W 4 DTCE4 0 R/W 3 DTCE3 0 R/W 2 DTCE2 0 R/W 1 DTCE1 0 R/W 0 DTCE0 0 R/W Initial value: R/W : The DTC enable registers comprise five 8-bit readable/writable registers, DTCERA to DTCERE, with bits corresponding to the interrupt sources that can activate the DTC. These bits enable or disable DTC service for the corresponding interrupt sources. The DTC enable registers are initialized to H'00 by a reset and in hardware standby mode. A DTCE bit can be set for each interrupt source that can activate the DTC. The correspondence between interrupt sources and DTCE bits is shown in table 7.4, together with the vector number generated for each interrupt controller. For DTCE bit setting, read/write operations must be performed using bit-manipulation instructions such as BSET and BCLR. For the initial setting only, however, when multiple activation sources are set at one time, it is possible to disable interrupts and write after executing a dummy read on the relevant register. 180 Bit n--DTC Activation Enable (DTCEn) Bit n DTCEn 0 Description DTC activation by this interrupt is disabled [Clearing conditions] * * 1 When the DISEL bit is 1 and the data transfer has ended When the specified number of transfers have ended (Initial value) DTC activation by this interrupt is enabled [Holding condition] When the DISEL bit is 0 and the specified number of transfers have not ended (n = 7 to 0) A DTCE bit can be set for each interrupt source that can activate the DTC. The correspondence between interrupt sources and DTCE bits is shown in table 7.4, together with the vector number generated for each interrupt controller. 7.2.8 Bit DTC Vector Register (DTVECR) : 7 0 R/(W)* 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W SWDTE DTVEC6 DTVEC5 DTVEC4 DTVEC3 DTVEC2 DTVEC1 DTVEC0 Initial value: R/W : Note: * A value of 1 can always be written to the SWDTE bit, but 0 can only be written after 1 is read. DTVECR is an 8-bit readable/writable register that enables or disables DTC activation by software, and sets a vector number for the software activation interrupt. DTVECR is initialized to H'00 by a reset and in hardware standby mode. Bit 7--DTC Software Activation Enable (SWDTE): Enables or disables DTC activation by software. When clearing the SWDTE bit to 0 by software, write 0 to SWDTE after reading SWDTE set to 1. 181 Bit 7 SWDTE 0 Description DTC software activation is disabled [Clearing condition] When the DISEL bit is 0 and the specified number of transfers have not ended 1 DTC software activation is enabled [Holding conditions] * * * When the DISEL bit is 1 and data transfer has ended When the specified number of transfers have ended During data transfer due to software activation (Initial value) Bits 6 to 0--DTC Software Activation Vectors 6 to 0 (DTVEC6 to DTVEC0): These bits specify a vector number for DTC software activation. The vector address is expressed as H'0400 + ((vector number) << 1). <<1 indicates a one-bit leftshift. For example, when DTVEC6 to DTVEC0 = H'10, the vector address is H'0420. 7.2.9 Module Stop Control Register (MSTPCR) MSTPCRH Bit : 15 0 14 0 13 1 12 1 11 1 10 1 9 1 8 1 7 1 6 1 5 1 MSTPCRL 4 1 3 1 2 1 1 1 0 1 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W MSTPCR is a 16-bit readable/writable register that performs module stop mode control. When the MSTP14 bit in MSTPCR is set to 1, the DTC operation stops at the end of the bus cycle and a transition is made to module stop mode. However, 1 cannot be written in the MSTP14 bit while the DTC is operating. For details, see section 19.5, Module Stop Mode. MSTPCR is initialized to H'3FFF by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 14--Module Stop (MSTP14): Specifies the DTC module stop mode. Bit 14 MSTP14 0 1 182 Description DTC module stop mode cleared DTC module stop mode set (Initial value) 7.3 7.3.1 Operation Overview When activated, the DTC reads register information that is already stored in memory and transfers data on the basis of that register information. After the data transfer, it writes updated register information back to memory. Pre-storage of register information in memory makes it possible to transfer data over any required number of channels. Setting the CHNE bit to 1 makes it possible to perform a number of transfers with a single activation. Figure 7.2 shows a flowchart of DTC operation. Start Read DTC vector Next transfer Read register information Data transfer Write register information CHNE=1 No Yes Transfer Counter= 0 or DISEL= 1 No Clear an activation flag Yes Clear DTCER End Interrupt exception handling Figure 7.2 Flowchart of DTC Operation 183 The DTC transfer mode can be normal mode, repeat mode, or block transfer mode. The 24-bit SAR designates the DTC transfer source address and the 24-bit DAR designates the transfer destination address. After each transfer, SAR and DAR are independently incremented, decremented, or left fixed. Table 7.2 outlines the functions of the DTC. Table 7.2 DTC Functions Address Registers Transfer Mode * Normal mode One transfer request transfers one byte or one word Memory addresses are incremented or decremented by 1 or 2 Up to 65,536 transfers possible Repeat mode One transfer request transfers one byte or one word Memory addresses are incremented or decremented by 1 or 2 After the specified number of transfers (1 to 256), the initial state resumes and operation continues Block transfer mode One transfer request transfers a block of the specified size Block size is from 1 to 256 bytes or words Up to 65,536 transfers possible A block area can be designated at either the source or destination Activation Source * * * * * * IRQ TPU TGI 8-bit timer CMI SCI TXI or RXI A/D converter ADI Software Transfer Source 24 bits Transfer Destination 24 bits * * 184 7.3.2 Activation Sources The DTC operates when activated by an interrupt or by a write to DTVECR by software. An interrupt request can be directed to the CPU or DTC, as designated by the corresponding DTCER bit. An interrupt becomes a DTC activation source when the corresponding bit is set to 1, and a CPU interrupt source when the bit is cleared to 0. At the end of a data transfer (or the last consecutive transfer in the case of chain transfer), the activation source or corresponding DTCER bit is cleared. Table 7.3 shows activation source and DTCER clearance. The activation source flag, in the case of RXI0, for example, is the RDRF flag of SCI0. Table 7.3 Activation Source and DTCER Clearance When the DISEL Bit Is 1, or when the Specified Number of Transfers Have Ended The SWDTE bit remains set to 1 An interrupt is issued to the CPU Interrupt activation The corresponding DTCER bit remains set to 1 The activation source flag is cleared to 0 The corresponding DTCER bit is cleared to 0 The activation source flag remains set to 1 A request is issued to the CPU for the activation source interrupt When the DISEL Bit Is 0 and the Specified Number of Activation Source Transfers Have Not Ended Software activation The SWDTE bit is cleared to 0 Figure 7.3 shows a block diagram of activation source control. For details see section 5, Interrupt Controller. Source flag cleared Clear controller Clear DTCER Clear request Select On-chip supporting module IRQ interrupt Interrupt request Selection circuit DTC DTVECR Interrupt controller Interrupt mask CPU Figure 7.3 Block Diagram of DTC Activation Source Control 185 When an interrupt has been designated a DTC activation source, existing CPU mask level and interrupt controller priorities have no effect. If there is more than one activation source at the same time, the DTC operates in accordance with the default priorities. 7.3.3 DTC Vector Table Figure 7.4 shows the correspondence between DTC vector addresses and register information. Table 7.4 shows the correspondence between activation, vector addresses, and DTCER bits. When the DTC is activated by software, the vector address is obtained from: H'0400 + (DTVECR[6:0] << 1) (where << 1 indicates a 1-bit left shift). For example, if DTVECR is H'10, the vector address is H'0420. The DTC reads the start address of the register information from the vector address set for each activation source, and then reads the register information from that start address. The register information can be placed at predetermined addresses in the on-chip RAM. The start address of the register information should be an integral multiple of four. The configuration of the vector address is the same in both normal and advanced modes, a 2-byte unit being used in both cases. These two bytes specify the lower bits of the address in the on-chip RAM. 186 Table 7.4 Interrupt Sources, DTC Vector Addresses, and Corresponding DTCEs Origin of Interrupt Source Software Vector Number DTVECR Vector Address H'0400+ (DTVECR [6:0] <<1) H'0420 H'0422 H'0424 H'0426 H'0428 H'042A H'042C H'042E H'0438 H'0440 H'0442 H'0444 H'0446 H'0450 H'0452 H'0458 H'045A Interrupt Source Write to DTVECR DTCE* -- Priority High IRQ0 IRQ1 IRQ2 IRQ3 IRQ4 IRQ5 IRQ6 IRQ7 ADI (A/D conversion end) TGI0A (GR0A compare match/ input capture) TGI0B (GR0B compare match/ input capture) TGI0C (GR0C compare match/ input capture) TGI0D (GR0D compare match/ input capture) TGI1A (GR1A compare match/ input capture) TGI1B (GR1B compare match/ input capture) TGI2A (GR2A compare match/ input capture) TGI2B (GR2B compare match/ input capture) External pin 16 17 18 19 20 21 22 23 DTCEA7 DTCEA6 DTCEA5 DTCEA4 DTCEA3 DTCEA2 DTCEA1 DTCEA0 DTCEB6 DTCEB5 DTCEB4 DTCEB3 DTCEB2 DTCEB1 DTCEB0 DTCEC7 DTCEC6 Low A/D TPU channel 0 28 32 33 34 35 TPU channel 1 40 41 TPU channel 2 44 45 Note: * DTCE bits with no corresponding interrupt are reserved, and should be written with 0. 187 Table 7.4 Interrupt Sources, DTC Vector Addresses, and Corresponding DTCEs (cont) Origin of Interrupt Source TPU channel 3 Vector Number 48 49 50 51 TPU channel 4 56 57 TPU channel 5 60 61 8-bit timer channel 0 8-bit timer channel 1 SCI channel 0 SCI channel 1 64 65 68 69 81 82 85 86 Vector Address H'0460 H'0462 H'0464 H'0466 H'0470 H'0472 H'0478 H'047A H'0480 H'0482 H'0488 H'048A H'04A2 H'04A4 H'04AA H'04AC Interrupt Source TGI3A (GR3A compare match/ input capture) TGI3B (GR3B compare match/ input capture) TGI3C (GR3C compare match/ input capture) TGI3D (GR3D compare match/ input capture) TGI4A (GR4A compare match/ input capture) TGI4B (GR4B compare match/ input capture) TGI5A (GR5A compare match/ input capture) TGI5B (GR5B compare match/ input capture) CMIA0 CMIB0 CMIA1 CMIB1 RXI0 (reception complete 0) TXI0 (transmit data empty 0) RXI1 (reception complete 1) TXI1 (transmit data empty 1) DTCE DTCEC5 DTCEC4 DTCEC3 DTCEC2 DTCEC1 DTCEC0 DTCED5 DTCED4 DTCED3 DTCED2 DTCED1 DTCED0 DTCEE3 DTCEE2 DTCEE1 DTCEE0 Priority High Low 188 DTC vector address Register information start address Register information Chain transfer Figure 7.4 Correspondence between DTC Vector Address and Register Information 7.3.4 Location of Register Information in Address Space Figure 7.5 shows how the register information should be located in the address space. Locate the MRA, SAR, MRB, DAR, CRA, and CRB registers, in that order, from the start address of the register information (contents of the vector address). In the case of chain transfer, register information should be located in consecutive areas. Locate the register information in the on-chip RAM (addresses: H'FFF800 to H'FFFBFF). Lower address Register information start address 0 MRA MRB CRA MRA MRB CRA 4 bytes SAR DAR CRB Register information for 2nd transfer in chain transfer 1 2 SAR DAR CRB Register information 3 Chain transfer Figure 7.5 Location of Register Information in Address Space 189 7.3.5 Normal Mode In normal mode, one operation transfers one byte or one word of data. From 1 to 65,536 transfers can be specified. Once the specified number of transfers have ended, a CPU interrupt can be requested. Table 7.5 lists the register information in normal mode and figure 7.6 shows memory mapping in normal mode. Table 7.5 Name DTC source address register DTC destination address register DTC transfer count register A DTC transfer count register B Register Information in Normal Mode Abbreviation SAR DAR CRA CRB Function Designates source address Designates destination address Designates transfer count Not used SAR Transfer DAR Figure 7.6 Memory Mapping in Normal Mode 190 7.3.6 Repeat Mode In repeat mode, one operation transfers one byte or one word of data. From 1 to 256 transfers can be specified. Once the specified number of transfers have ended, the initial state of the transfer counter and the address register specified as the repeat area is restored, and transfer is repeated. In repeat mode the transfer counter value does not reach H'00, and therefore CPU interrupts cannot be requested when DISEL = 0. Table 7.6 lists the register information in repeat mode and figure 7.7 shows memory mapping in repeat mode. Table 7.6 Name DTC source address register DTC destination address register DTC transfer count register AH DTC transfer count register AL DTC transfer count register B Register Information in Repeat Mode Abbreviation SAR DAR CRAH CRAL CRB Function Designates source address Designates destination address Holds number of transfers Designates transfer count (8 bits x 2) Not used SAR or DAR Repeat area Transfer DAR or SAR Figure 7.7 Memory Mapping in Repeat Mode 191 7.3.7 Block Transfer Mode In block transfer mode, one operation transfers one block of data. The block size is 1 to 256. When the transfer of one block ends, the initial state of the block size counter and the address register specified as the block area is restored. The other address register is then incremented, decremented, or left fixed. From 1 to 65,536 transfers can be specified. Once the specified number of transfers have ended, a CPU interrupt is requested. Table 7.7 lists the register information in block transfer mode and figure 7.8 shows memory mapping in block transfer mode. Table 7.7 Name DTC source address register DTC destination address register DTC transfer count register AH DTC transfer count register AL DTC transfer count register B Register Information in Block Transfer Mode Abbreviation SAR DAR CRAH CRAL CRB Function Designates transfer source address Designates destination address Holds block size Designates block size count Transfer count 192 First block SAR or DAR * * * Block area Transfer DAR or SAR Nth block Figure 7.8 Memory Mapping in Block Transfer Mode 193 7.3.8 Chain Transfer Setting the CHNE bit to 1 enables a number of data transfers to be performed consecutively in response to a single transfer request. SAR, DAR, CRA, CRB, MRA, and MRB, which define data transfers, can be set independently. Figure 7.9 shows the memory map for chain transfer. Source Destination Register information CHNE = 1 DTC vector address Register information start address Register information CHNE = 0 Source Destination Figure 7.9 Chain Transfer Memory Map In the case of transfer with CHNE set to 1, an interrupt request to the CPU is not generated at the end of the specified number of transfers or by setting of the DISEL bit to 1, and the interrupt source flag for the activation source is not affected. 194 7.3.9 Operation Timing Figures 7.10 to 7.12 show an example of DTC operation timing. o DTC activation request DTC request Data transfer Vector read Address Transfer information read Read Write Transfer information write Figure 7.10 DTC Operation Timing (Example in Normal Mode or Repeat Mode) o DTC activation request DTC request Vector read Address Transfer information read Data transfer Read Write Read Write Transfer information write Figure 7.11 DTC Operation Timing (Example of Block Transfer Mode, with Block Size of 2) 195 o DTC activation request DTC request Data transfer Vector read Address Transfer information read Read Write Read Write Data transfer Transfer Transfer information information write read Transfer information write Figure 7.12 DTC Operation Timing (Example of Chain Transfer) 7.3.10 Number of DTC Execution States Table 7.8 lists execution statuses for a single DTC data transfer, and table 7.9 shows the number of states required for each execution status. Table 7.8 DTC Execution Statuses Vector Read I 1 1 1 Register Information Read/Write Data Read J K 6 6 6 1 1 N Data Write L 1 1 N Internal Operations M 3 3 3 Mode Normal Repeat Block transfer N: Block size (initial setting of CRAH and CRAL) 196 Table 7.9 Number of States Required for Each Execution Status OnChip RAM 32 1 SI SJ -- 1 OnChip ROM 16 1 1 -- On-Chip I/O Registers 8 2 -- -- 16 2 -- -- Object to be Accessed Bus width Access states Execution Vector read status Register information read/write Byte data read Word data read Byte data write Word data write External Devices 8 2 4 -- 3 16 2 3 3+m -- 6+2m 2 -- -- SK SK SL SL 1 1 1 1 1 1 1 1 1 2 4 2 4 2 2 2 2 2 4 2 4 3+m 2 3+m 3+m 3+m 3+m 6+2m 2 3+m 2 6+2m 2 Internal operation SM The number of execution states is calculated from the formula below. Note that means the sum of all transfers activated by one activation event (the number in which the CHNE bit is set to 1, plus 1). Number of execution states = I * SI + (J * SJ + K * SK + L * SL) + M * SM For example, when the DTC vector address table is located in on-chip ROM, normal mode is set, and data is transferred from the on-chip ROM to an internal I/O register, the time required for the DTC operation is 13 states. The time from activation to the end of the data write is 10 states. 197 7.3.11 Procedures for Using DTC Activation by Interrupt: The procedure for using the DTC with interrupt activation is as follows: [1] Set the MRA, MRB, SAR, DAR, CRA, and CRB register information in the on-chip RAM. [2] Set the start address of the register information in the DTC vector address. [3] Set the corresponding bit in DTCER to 1. [4] Set the enable bits for the interrupt sources to be used as the activation sources to 1. The DTC is activated when an interrupt used as an activation source is generated. [5] After the end of one data transfer, or after the specified number of data transfers have ended, the DTCE bit is cleared to 0 and a CPU interrupt is requested. If the DTC is to continue transferring data, set the DTCE bit to 1. Activation by Software: The procedure for using the DTC with software activation is as follows: [1] Set the MRA, MRB, SAR, DAR, CRA, and CRB register information in the on-chip RAM. [2] Set the start address of the register information in the DTC vector address. [3] Check that the SWDTE bit is 0. [4] Write 1 to SWDTE bit and the vector number to DTVECR. [5] Check the vector number written to DTVECR. [6] After the end of one data transfer, if the DISEL bit is 0 and a CPU interrupt is not requested, the SWDTE bit is cleared to 0. If the DTC is to continue transferring data, set the SWDTE bit to 1. When the DISEL bit is 1, or after the specified number of data transfers have ended, the SWDTE bit is held at 1 and a CPU interrupt is requested. 198 7.3.12 Examples of Use of the DTC (1) Normal Mode An example is shown in which the DTC is used to receive 128 bytes of data via the SCI. [1] Set MRA to fixed source address (SM1 = SM0 = 0), incrementing destination address (DM1 = 1, DM0 = 0), normal mode (MD1 = MD0 = 0), and byte size (Sz = 0). The DTS bit can have any value. Set MRB for one data transfer by one interrupt (CHNE = 0, DISEL = 0). Set the SCI RDR address in SAR, the start address of the RAM area where the data will be received in DAR, and 128 (H'0080) in CRA. CRB can be set to any value. [2] Set the start address of the register information at the DTC vector address. [3] Set the corresponding bit in DTCER to 1. [4] Set the SCI to the appropriate receive mode. Set the RIE bit in SCR to 1 to enable the reception complete (RXI) interrupt. Since the generation of a receive error during the SCI reception operation will disable subsequent reception, the CPU should be enabled to accept receive error interrupts. [5] Each time reception of one byte of data ends on the SCI, the RDRF flag in SSR is set to 1, an RXI interrupt is generated, and the DTC is activated. The receive data is transferred from RDR to RAM by the DTC. DAR is incremented and CRA is decremented. The RDRF flag is automatically cleared to 0. [6] When CRA becomes 0 after the 128 data transfers have ended, the RDRF flag is held at 1, the DTCE bit is cleared to 0, and an RXI interrupt request is sent to the CPU. The interrupt handling routine should perform wrap-up processing. 199 (2) Software Activation An example is shown in which the DTC is used to transfer a block of 128 bytes of data by means of software activation. The transfer source address is H'1000 and the destination address is H'2000. The vector number is H'60, so the vector address is H'04C0. [1] Set MRA to incrementing source address (SM1 = 1, SM0 = 0), incrementing destination address (DM1 = 1, DM0 = 0), block transfer mode (MD1 = 1, MD0 = 0), and byte size (Sz = 0). The DTS bit can have any value. Set MRB for one block transfer by one interrupt (CHNE = 0). Set the transfer source address (H'1000) in SAR, the destination address (H'2000) in DAR, and 128 (H'8080) in CRA. Set 1 (H'0001) in CRB. [2] Set the start address of the register information at the DTC vector address (H'04C0). [3] Check that the SWDTE bit in DTVECR is 0. Check that there is currently no transfer activated by software. [4] Write 1 to the SWDTE bit and the vector number (H'60) to DTVECR. The write data is H'E0. [5] Read DTVECR again and check that it is set to the vector number (H'60). If it is not, this indicates that the write failed. This is presumably because an interrupt occurred between steps 3 and 4 and led to a different software activation. To activate this transfer, go back to step 3. [6] If the write was successful, the DTC is activated and a block of 128 bytes of data is transferred. [7] After the transfer, an SWDTEND interrupt occurs. The interrupt handling routine should clear the SWDTE bit to 0 and perform other wrap-up processing. 200 7.4 Interrupts An interrupt request is issued to the CPU when the DTC finishes the specified number of data transfers, or a data transfer for which the DISEL bit was set to 1. In the case of interrupt activation, the interrupt set as the activation source is generated. These interrupts to the CPU are subject to CPU mask level and interrupt controller priority level control. In the case of activation by software, a software activated data transfer end interrupt (SWDTEND) is generated. When the DISEL bit is 1 and one data transfer has ended, or the specified number of transfers have ended, after data transfer ends, the SWDTE bit is held at 1 and an SWDTEND interrupt is generated. The interrupt handling routine should clear the SWDTE bit to 0. When the DTC is activated by software, an SWDTEND interrupt is not generated during a data transfer wait or during data transfer even if the SWDTE bit is set to 1. 7.5 Usage Notes Module Stop: When the MSTP14 bit in MSTPCR is set to 1, the DTC clock stops, and the DTC enters the module stop state. However, 1 cannot be written in the MSTP14 bit while the DTC is operating. On-Chip RAM: The MRA, MRB, SAR, DAR, CRA, and CRB registers are all located in on-chip RAM. When the DTC is used, the RAME bit in SYSCR must not be cleared to 0. DTCE Bit Setting: For DTCE bit setting, read/write operations must be performed using bitmanipulation instructions such as BSET and BCLR. For the initial setting only, however, when multiple activation sources are set at one time, it is possible to disable interrupts and write after executing a dummy read on the relevant register. 201 Section 8 I/O Ports 8.1 Overview The H8S/2345 Series has 10 I/O ports (ports 1, 2, 3, and A to G), and one input-only port (port 4). Table 8.1 summarizes the port functions. The pins of each port also have other functions. Each port includes a data direction register (DDR) that controls input/output (not provided for the input-only port), a data register (DR) that stores output data, and a port register (PORT) used to read the pin states. Ports A to E have a built-in MOS input pull-up function, and in addition to DR and DDR, have a MOS input pull-up control register (PCR) to control the on/off state of MOS input pull-up. Ports 3 and A include an open-drain control register (ODR) that controls the on/off state of the output buffer PMOS. Ports 1, and A to F can drive a single TTL load and 90 pF capacitive load, and ports 2, 3, and G can drive a single TTL load and 30 pF capacitive load. All the I/O ports can drive a Darlington transistor when in output mode. Ports 1, and A to C can drive an LED (10 mA sink current). Port 2, and interrupt input pins (IRQ0 to IRQ7) are Schmitt-triggered inputs. For block diagrams of the ports see appendix C, I/O Port Block Diagrams. 203 Table 8.1 Port Port Functions Pins Mode 1*1 Mode 2*1, *2 Mode 3*1, *2 Mode 4 Mode 5 Mode 6*2 Mode 7*2 Description Port 1 * 8-bit I/O port P17/TIOCB2/ 8-bit I/O port also functioning as TPU I/O pins (TCLKA, TCLKB, TCLKC, TCLKD TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, P16/TIOCA2 TIOCB2) P15/TIOCB1/ TCLKC P14/TIOCA1 P13/TIOCD0/ TCLKB/A23 P12/TIOCC0/ TCLKA/A22 P11/TIOCB0/ A21 P10/TIOCA0/ A20 When DDR = 0: input port also functioning as TPU I/O pins (TCLKA, TCLKB, TIOCA0, TIOCB0, TIOCC0, TIOCD0) When DDR = 1: address output Port 2 * 8-bit I/O port * Schmitttriggered input P27/TIOCB5/ 8-bit I/O port also functioning as TPU I/O pins (TIOCA3, TIOCB3, TIOCC3, TMO1 TIOCD3, TIOCA4, TIOCB4, TIOCA5, TIOCB5), and 8-bit timer (channels 0 P26/TIOCA5/ and 1) I/O pins (TMRI0, TMCI0, TMO0, TMRI1, TMCI1, TMO1) TMO0 P25/TIOCB4/ TMCI1 P24/TIOCA4/ TMRI1 P23/TIOCD3/ TMCI0 P22/TIOCC3/ TMRI0 P21/TIOCB3 P20/TIOCA3 P35/SCK1/ IRQ5 P34/SCK0/ IRQ4 P33/RxD1 P32/RxD0 P31/TxD1 P30/TxD0 6-bit I/O port also functioning as SCI (channels 0 and 1) I/O pins (TxD0, RxD0, SCK0, TxD1, RxD1, SCK1) and interrupt input pins (IRQ5, IRQ4) Port 3 * 6-bit I/O port * Open-drain output capability * Schmitttriggered input (IRQ5, IRQ4) 204 Table 8.1 Port Port Functions (cont) Pins P47/AN7/ DA1 P46/AN6/ DA0 P45/AN5 P44/AN4 P43/AN3 P42/AN2 P41/AN1 P40/AN0 Mode 1*1 Mode 2*1, *2 Mode 3*1, *2 Mode 4 Mode 5 Mode 6*2 Mode 7*2 Description Port 4 * 8-bit input port 8-bit input port also functioning as A/D converter analog inputs (AN7 to AN0) and D/A converter analog outputs (DA1 and DA0) Port A * 4-bit I/O PA 3/A 19 to port PA 0/A 16 * Built-in MOS input pull-up * Open-drain output capability I/O ports Address output When DDR = 0 (after reset): input ports When DDR = 1: address output I/O ports Port B * 8-bit I/O PB 7/A 15 to port PB 0/A 8 * Built-in MOS input pull-up Address output When I/O port DDR = 0 (after reset): input port When DDR = 1: address output Address output When I/O port DDR = 0 (after reset): input port When DDR = 1: address output Port C * 8-bit I/O PC7/A 7 to port PC0/A 0 * Built-in MOS input pull-up Address output When I/O port DDR = 0 (after reset): input port When DDR = 1: address output Address output When I/O port DDR = 0 (after reset): input port When DDR = 1: address output Port D * 8-bit I/O PD7/D15 to port PD0/D8 * Built-in MOS input pull-up Data bus input/ output I/O port Data bus input/output I/O port 205 Table 8.1 Port Port Functions (cont) Pins Mode 1*1 Mode 2*1, *2 Mode 3*1, *2 I/O port Mode 4 Mode 5 Mode 6*2 Mode 7*2 I/O port Description Port E * 8-bit I/O PE 7/D7 to port PE 0/D0 * Built-in MOS input pull-up Port F * 8-bit I/O PF7/o port * Schmitttriggered input (IRQ3 to IRQ0) In 8-bit bus mode: I/O port In 16-bit bus mode: data bus input/output When DDR = 0: input port In 8-bit bus mode: I/O port In 16-bit bus mode: data bus input/output When When DDR = 0: input port DDR = 0 When DDR = 1 (after reset): When DDR = 1 (after (after o output reset): reset): o output input port When DDR = 1: o output AS, RD, HWR, LWR I/O port output AS, RD, HWR, LWR output When DDR = 0 (after reset): input port When DDR = 1: o output I/O port PF6/AS PF5/RD PF4/HWR PF3/LWR/ IRQ3 PF2/WAIT/ IRQ2 I/O port also functioning as When WAITE = 0 (after reset): When WAITE = 0 (after reset): I/O port interrupt I/O port also functioning as also functioning as input pins interrupt input pin (IRQ2) (IRQ3 to interrupt input pin IRQ0) (IRQ2) When WAITE = 1: WAIT input also functioning as interrupt input pin (IRQ2) When WAITE = 1: WAIT input also functioning as interrupt input pin (IRQ2) I/O port also functioning as interrupt input pins (IRQ3 to IRQ0) PF1/BACK/ IRQ1 PF0/BREQ/ IRQ0 When BRLE = 0 (after reset): I/O port also functioning as interrupt input pins (IRQ1, IRQ0) When BRLE = 1: BREQ input, BACK output also functioning as interrupt input pins (IRQ1, IRQ0) When BRLE = 0 (after reset): I/O port also functioning as interrupt input pins (IRQ1, IRQ0) When BRLE = 1: BREQ input, BACK output also functioning as interrupt input pins (IRQ1, IRQ0) 206 Table 8.1 Port Port Functions (cont) Pins PG 4/CS0 Mode 1*1 Mode 2*1, *2 Mode 3*1, *2 Mode 4 Mode 5 Mode 6*2 Mode 7*2 I/O port also functions as interrupt input pins (IRQ7, IRQ6) and A/D converter input pin (ADTRG) Description Port G * 5-bit I/O port * Schmitttriggered input (IRQ7, IRQ6) When DDR = 0*3: input port When DDR = 1*4: CS0 output I/O port When DDR = 0*3: input port also func- When DDR = 1*4: CS0 output tioning as interrupt input pins (IRQ7, IRQ6) PG 3/CS1 PG 2/CS2 PG 1/CS3/ IRQ7 I/O port also functioning as interrupt input pins (IRQ7, IRQ6) and A/D converter input pin (ADTRG) and A/D When DDR = 0 (after reset): converter input port also functioning as input pin interrupt input pin (IRQ7) (ADTRG) When DDR = 1: CS1, CS2, CS3 output also functioning as interrupt input pin (IRQ7) I/O port also functioning as interrupt input pin (IRQ6) and A/D converter input pin (ADTRG) PG 0/IRQ6/ ADTRG Notes: 1. 2. 3. 4. Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. After a reset in mode 2, 6, 10 or 14 After a reset in mode 1, 4 or 5 207 8.2 8.2.1 Port 1 Overview Port 1 is an 8-bit I/O port. Port 1 pins also function as TPU I/O pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, and TIOCB2) and an address bus output function. Port 1 pin functions change according to the operating mode. Figure 8.1 shows the port 1 pin configuration. Port 1 pins P17 (I/O)/TIOCB2 (I/O)/TCLKD (input) P16 (I/O)/TIOCA2 (I/O) P15 (I/O)/TIOCB1 (I/O)/TCLKC (input) Port 1 P14 (I/O)/TIOCA1 (I/O) P13 (I/O)/TIOCD0 (I/O)/TCLKB (input)/A23 (output) P12 (I/O)/TIOCC0 (I/O)/TCLKA (input)/A22 (output) P11 (I/O)/TIOCB0 (I/O)/A21 (output) P10 (I/O)/TIOCA0 (I/O)/A20 (output) Pin functions in modes 4 to 6* P17 (I/O)/TIOCB2 (I/O)/TCLKD (input) P16 (I/O)/TIOCA2 (I/O) P15 (I/O)/TIOCB1 (I/O)/TCLKC (input) P14 (I/O)/TIOCA1 (I/O) P13 (input)/TIOCD0 (I/O)/TCLKB (input)/A23 (output) P12 (input)/TIOCC0 (I/O)/TCLKA (input)/A22 (output) P11 (input)/TIOCB0 (I/O)/A21 (output) P10 (input)/TIOCA0 (I/O)/A20 (output) Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. Pin functions in modes 1 to 3 and 7* P17 (I/O)/TIOCB2 (I/O)/TCLKD (input) P16 (I/O)/TIOCA2 (I/O) P15 (I/O)/TIOCB1 (I/O)/TCLKC (input) P14 (I/O)/TIOCA1 (I/O) P13 (I/O)/TIOCD0 (I/O)/TCLKB (input) P12 (I/O)/TIOCC0 (I/O)/TCLKA (input) P11 (I/O)/TIOCB0 (I/O) P10 (I/O)/TIOCA0 (I/O) Figure 8.1 Port 1 Pin Functions 208 8.2.2 Register Configuration Table 8.2 shows the port 1 register configuration. Table 8.2 Name Port 1 data direction register Port 1 data register Port 1 register Port 1 Registers Abbreviation P1DDR P1DR PORT1 R/W W R/W R Initial Value H'00 H'00 Undefined Address* H'FEB0 H'FF60 H'FF50 Note: * Lower 16 bits of the address. Port 1 Data Direction Register (P1DDR) Bit : 7 0 W 6 0 W 5 0 W 4 0 W 3 0 W 2 0 W 1 0 W 0 0 W P17DDR P16DDR P15DDR P14DDR P13DDR P12DDR P11DDR P10DDR Initial value : R/W : P1DDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port 1. P1DDR cannot be read; if it is, an undefined value will be read. Setting a P1DDR bit to 1 makes the corresponding port 1 pin an output pin, while clearing the bit to 0 makes the pin an input pin. P1DDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. As the TPU is initialized by a manual reset, the pin states are determined by the P1DDR and P1DR specifications. Whether the address output pins maintain their output state or go to the high-impedance state in a transition to software standby mode is selected by the OPE bit in SBYCR. * Modes 1 to 3 and 7* The corresponding port 1 pins are output ports when P1DDR is set to 1, and input ports when cleared to 0. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 209 * Modes 4 to 6* The corresponding port 1 pins are address outputs when P13DDR to P10DDR are set to 1, and input ports when cleared to 0. The corresponding port 1 pins are output ports when P17DDR to P14DDR are set to 1, and input ports when cleared to 0. Port 1 Data Register (P1DR) Bit : 7 P17DR Initial value : R/W : 0 R/W 6 P16DR 0 R/W 5 P15DR 0 R/W 4 P14DR 0 R/W 3 P13DR 0 R/W 2 P12DR 0 R/W 1 P11DR 0 R/W 0 P10DR 0 R/W P1DR is an 8-bit readable/writable register that stores output data for the port 1 pins (P17 to P10). P1DR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. Port 1 Register (PORT1) Bit : 7 P17 Initial value : R/W : --* R 6 P16 --* R 5 P15 --* R 4 P14 --* R 3 P13 --* R 2 P12 --* R 1 P11 --* R 0 P10 --* R Note: * Determined by state of pins P17 to P10. PORT1 is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port 1 pins (P17 to P10) must always be performed on P1DR. If a port 1 read is performed while P1DDR bits are set to 1, the P1DR values are read. If a port 1 read is performed while P1DDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORT1 contents are determined by the pin states, as P1DDR and P1DR are initialized. PORT1 retains its prior state after a manual reset, and in software standby mode. 8.2.3 Pin Functions Port 1 pins also function as TPU I/O pins (TCLKA, TCLKB, TCLKC, TCLKD, TIOCA0, TIOCB0, TIOCC0, TIOCD0, TIOCA1, TIOCB1, TIOCA2, and TIOCB2) and address output pins (A 23 to A20). Port 1 pin functions are shown in table 8.3. 210 Table 8.3 Pin P17/TIOCB2/ TCLKD Port 1 Pin Functions Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 2 setting by bits MD3 to MD0 in TMDR2, bits IOB3 to IOB0 in TIOR2, bits CCLR1 and CCLR0 in TCR2, bits TPSC2 to TPSC0 in TCR0 and TCR5, and bit P17DDR. TPU Channel 2 Setting P17DDR Pin function Table Below (1) -- TIOCB2 output Table Below (2) 0 P17 input TCLKD input * TPU Channel 2 Setting MD3 to MD0 IOB3 to IOB0 2 1 P17 output TIOCB2 input *1 (2) B'0000 B'0100 B'1xxx -- -- (1) B'0001 to B'0011 B'0101 to B'0111 -- Output compare output (2) B'0010 -- (2) B'xx00 (1) B'0011 (2) B'0000, B'01xx Other than B'xx00 CCLR1, CCLR0 Output function -- -- -- -- Other than B'10 PWM mode 2 output B'10 -- x: Don't care Notes: 1. TIOCB2 input when TPU channel 2 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOB3 to IOB0 = B'1xxx). 2. TCLKD input when the setting for either TCR0 or TCR5 is: TPSC2 to TPSC0 = B'111. TCLKD input when channels 2 and 4 are set to phase counting mode (MD3 to MD0 = B'01xx). 211 Table 8.3 Pin P16/TIOCA2 Port 1 Pin Functions (cont) Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 2 setting by bits MD3 to MD0 in TMDR2, bits IOA3 to IOA0 in TIOR2, bits CCLR1 and CCLR0 in TCR2, and bit P16DDR. TPU Channel 2 Setting P16DDR Pin function Table Below (1) -- TIOCA2 output Table Below (2) 0 P16 input 1 P16 output TIOCA2 input *1 TPU Channel 2 Setting MD3 to MD0 IOA3 to IOA0 (2) B'0000 B'0100 B'1xxx -- -- (1) (2) B'001x (1) B'0011 (1) B'0011 (2) B'0000, B'01xx B'0001 to B'xx00 B'0011 B'0101 to B'0111 -- Output compare output -- -- -- Other than B'xx00 CCLR1, CCLR0 Output function Other than B'01 PWM mode 2 output B'01 -- PWM mode 1 output *2 x: Don't care Notes: 1. TIOCA2 input when TPU channel 2 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOA3 to IOA0 = B'10xx). 2. TIOCB2 output is disabled. 212 Table 8.3 Pin P15/TIOCB1/ TCLKC Port 1 Pin Functions (cont) Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 1 setting by bits MD3 to MD0 in TMDR1, bits IOB3 to IOB0 in TIOR1, bits CCLR1 and CCLR0 in TCR1, bits TPSC2 to TPSC0 in TCR0, TCR2, TCR4, and TCR5, and bit P15DDR. TPU Channel 1 Setting P15DDR Pin function Table Below (1) -- TIOCB1 output Table Below (2) 0 P15 input TCLKC input *2 1 P15 output TIOCB1 input *1 TPU Channel 1 Setting MD3 to MD0 IOB3 to IOB0 (2) B'0000 B'0100 B'1xxx -- (1) B'0001 to B'0011 B'0101 to B'0111 -- (2) B'0010 -- (2) B'xx00 (1) B'0011 (2) B'0000, B'01xx Other than B'xx00 CCLR1, CCLR0 Output function -- -- Other than B'10 PWM mode 2 output B'10 -- Output compare output -- -- -- x: Don't care Notes: 1. TIOCB1 input when TPU channel 1 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOB3 to IOB0 = B'10xx). 2. TCLKC input when the setting for either TCR0 or TCR2 is: TPSC2 to TPSC0 = B'110; or when the setting for either TCR4 or TCR5 is TPSC2 to TPSC0 = B'101. TCLKC input when channels 2 and 4 are set to phase counting mode (MD3 to MD0 = B'01xx). 213 Table 8.3 Pin P14/TIOCA1 Port 1 Pin Functions (cont) Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 1 setting by bits MD3 to MD0 in TMDR1, bits IOA3 to IOA0 in TIOR1, bits CCLR1 and CCLR0 in TCR1, and bit P14DDR. TPU Channel 1 Setting P14DDR Pin function Table Below (1) -- TIOCA1 output Table Below (2) 0 P14 input 1 P14 output TIOCA1 input *1 TPU Channel 1 Setting MD3 to MD0 IOA3 to IOA0 (2) B'0000 B'0100 B'1xxx -- -- (1) (2) B'001x (1) B'0010 (1) B'0011 (2) B'0000, B'01xx B'0001 to B'xx00 B'0011 B'0101 to B'0111 -- Output compare output -- -- -- Other than B'xx00 CCLR1, CCLR0 Output function Other than B'01 PWM mode 2 output B'01 -- PWM mode 1 output*2 x: Don't care Notes: 1. TIOCA1 input when TPU channel 1 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOA3 to IOA0 = B'10xx). 2. TIOCB1 output is disabled. 214 Table 8.3 Pin P13/TIOCD0/ TCLKB/A 23 Port 1 Pin Functions (cont) Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the operating mode, TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, bits IOD3 to IOD0 in TIOR0L, and bits CCLR2 to CCLR0 in TCR0), bits TPSC2 to TPSC0 in TCR0 to TCR2, and bit P13DDR. Operating Mode TPU Channel 0 Setting P13DDR Pin function Modes 1, 2, 3, 7*1 Table Below (1) -- TIOCD0 output Table Below (2) 0 P13 input 1 Modes 4, 5, 6*1 Table Below (1) 0 1 Table Below (2) 0 P13 input 1 A23 output P13 TIOCD0 A23 output output output TIOCD0 input*2 TCLKB input*3 TIOCD0 input*2 TPU Channel 0 Setting MD3 to MD0 IOD3 to IOD0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) B'0001 to B'0011 B'0101 to B'0111 -- (2) B'0010 -- (2) B'xx00 (1) B'0011 (2) Other than B'xx00 CCLR2 to CCLR0 Output function -- -- Other than B'110 PWM mode 2 output B'110 -- Output compare output -- -- -- x: Don't care Notes: 1. Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 2. TIOCD0 input when TPU channel 0 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOD3 to IOD0 = B'10xx). 3. TCLKB input when the TCR0, TCR1, or TCR2 setting is: TPSC2 to TPSC0 = B'101. TCLKB input when channels 1 and 5 are set to phase counting mode (MD3 to MD0 = B'01xx). 215 Table 8.3 Pin P12/TIOCC0/ TCLKA/A 22 Port 1 Pin Functions (cont) Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the operating mode, TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, bits IOC3 to IOC0 in TIOR0L, and bits CCLR2 to CCLR0 in TCR0), bits TPSC2 to TPSC0 in TCR0 to TCR2, and bit P12DDR. Operating Mode TPU Channel 0 Setting P12DDR Pin function Modes 1, 2, 3, 7*1 Table Below (1) -- TIOCC0 output Table Below (2) 0 P12 input 1 Modes 4, 5, 6*1 Table Below (1) 0 1 Table Below (2) 0 P12 input 1 A22 output P12 TIOCC0 A22 output output output TIOCC0 input*2 TCLKA input*3 TIOCC0 input*2 TPU Channel 0 Setting MD3 to MD0 IOC3 to IOC0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) B'0001 to B'0011 B'0101 to B'0111 -- (2) B'001x B'xx00 (1) B'0010 (1) B'0011 (2) Other than B'xx00 CCLR2 to CCLR0 Output function -- -- Other than B'101 PWM mode 2 output B'101 -- Output compare output -- PWM mode 1 output*4 -- x: Don't care Notes: 1. Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 2. TIOCC0 input when TPU channel 0 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOC3 to IOC0 = B'10xx). 3. TCLKA input when the TCR0 to TCR5 setting is: TPSC2 to TPSC0 = B'100. TCLKA input when channel 1 and 5 are set to phase counting mode (MD3 to MD0 = B'01xx). 4. TIOCD0 output is disabled. When BFA = 1 or BFB = 1 in TMDR0, output is disabled and setting (2) applies. 216 Table 8.3 Pin P11/TIOCB0/ A21 Port 1 Pin Functions (cont) Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the operating mode, TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, bits IOB3 to IOB0 in TIOR0H, and bits CCLR2 to CCLR0 in TCR0), and bit P11DDR. Operating Mode TPU Channel 0 Setting P11DDR Pin function Modes 1, 2, 3, 7*1 Table Below (1) -- TIOCB0 output Table Below (2) 0 P11 input 1 Modes 4, 5, 6*1 Table Below (1) 0 1 Table Below (2) 0 P11 input 1 A21 output P11 TIOCB0 A21 output output output TIOCB0 input*2 TIOCB0 input*2 TPU Channel 0 Setting MD3 to MD0 IOB3 to IOB0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) B'0001 to B'0011 B'0101 to B'0111 -- (2) B'0010 -- (2) B'xx00 (1) B'0011 (2) Other than B'xx00 CCLR2 to CCLR0 Output function -- -- Other than B'010 PWM mode 2 output B'010 -- Output compare output -- -- -- x: Don't care Notes: 1. Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 2. TIOCB0 input when TPU channel 0 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOB3 to IOB0 = B'10xx). 217 Table 8.3 Pin P10/TIOCA0/ A20 Port 1 Pin Functions (cont) Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the operating mode, TPU channel 0 setting (by bits MD3 to MD0 in TMDR0, bits IOA3 to IOA0 in TIOR0H, and bits CCLR2 to CCLR0 in TCR0), and bit P10DDR. Operating Mode TPU Channel 0 Setting P10DDR Pin function Modes 1, 2, 3, 7*1 Table Below (1) -- TIOCA0 output Table Below (2) 0 P10 input 1 Modes 4, 5, 6*1 Table Below (1) 0 1 Table Below (2) 0 P10 input 1 A20 output P10 TIOCA0 A20 output output output TIOCA0 input*2 TIOCA0 input*2 TPU Channel 0 Setting MD3 to MD0 IOA3 to IOA0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) B'0001 to B'0011 B'0101 to B'0111 -- (2) B'001x B'xx00 (1) B'0010 (1) B'0011 (2) Other than B'xx00 CCLR2 to CCLR0 Output function -- -- Other than B'001 PWM mode 2 output B'001 -- Output compare output -- PWM mode 1 output*3 -- x: Don't care Notes: 1. Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 2. TIOCA0 input when TPU channel 0 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOA3 to IOA0 = B'10xx). 3. TIOCB0 output is disabled. 218 8.3 8.3.1 Port 2 Overview Port 2 is an 8-bit I/O port. Port 2 pins also function as TPU I/O pins (TIOCA3, TIOCB3, TIOCC3, TIOCD3, TIOCA4, TIOCB4, TIOCA5, and TIOCB5), and 8-bit timer I/O pins (TMRI0, TMCI0, TMO0, TMRI1, TMCI1, and TMO1). Port 2 pin functions are the same in all operating modes. Port 2 uses Schmitt-triggered input. Figure 8.2 shows the port 2 pin configuration. Port 2 pins P27 (I/O)/TIOCB5 (I/O)/TMO1 (output) P26 (I/O)/TIOCA5 (I/O)/TMO0 (output) P25 (I/O)/TIOCB4 (I/O)/TMCI1 (input) Port 2 P24 (I/O)/TIOCA4 (I/O)/TMRI1 (input) P23 (I/O)/TIOCD3 (I/O)/TMCI0 (input) P22 (I/O)/TIOCC3 (I/O)/TMRI0 (input) P21 (I/O)/TIOCB3 (I/O) P20 (I/O)/TIOCA3 (I/O) Figure 8.2 Port 2 Pin Functions 8.3.2 Register Configuration Table 8.4 shows the port 2 register configuration. Table 8.4 Name Port 2 data direction register Port 2 data register Port 2 register Port 2 Registers Abbreviation P2DDR P2DR PORT2 R/W W R/W R Initial Value H'00 H'00 Undefined Address* H'FEB1 H'FF61 H'FF51 Note: * Lower 16 bits of the address. 219 Port 2 Data Direction Register (P2DDR) Bit : 7 0 W 6 0 W 5 0 W 4 0 W 3 0 W 2 0 W 1 0 W 0 0 W P27DDR P26DDR P25DDR P24DDR P23DDR P22DDR P21DDR P20DDR Initial value : R/W : P2DDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port 2. P2DDR cannot be read; if it is, an undefined value will be read. Setting a P2DDR bit to 1 makes the corresponding port 2 pin an output pin, while clearing the bit to 0 makes the pin an input pin. P2DDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. As the TPU and 8-bit timer are initialized by a manual reset, the pin states are determined by the P2DDR and P2DR specifications. Port 2 Data Register (P2DR) Bit : 7 P27DR Initial value : R/W : 0 R/W 6 P26DR 0 R/W 5 P25DR 0 R/W 4 P24DR 0 R/W 3 P23DR 0 R/W 2 P22DR 0 R/W 1 P21DR 0 R/W 0 P20DR 0 R/W P2DR is an 8-bit readable/writable register that stores output data for the port 2 pins (P27 to P20). P2DR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. 220 Port 2 Register (PORT2) Bit : 7 P27 Initial value : R/W : --* R 6 P26 --* R 5 P25 --* R 4 P24 --* R 3 P23 --* R 2 P22 --* R 1 P21 --* R 0 P20 --* R Note: * Determined by state of pins P27 to P20. PORT2 is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port 2 pins (P27 to P20) must always be performed on P2DR. If a port 2 read is performed while P2DDR bits are set to 1, the P2DR values are read. If a port 2 read is performed while P2DDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORT2 contents are determined by the pin states, as P2DDR and P2DR are initialized. PORT2 retains its prior state after a manual reset, and in software standby mode. 8.3.3 Pin Functions Port 2 pins also function as TPU I/O pins (TIOCA3, TIOCB3, TIOCC3, TIOCD3, TIOCA4, TIOCB4, TIOCA5, and TIOCB5), and 8-bit timer I/O pins (TMRI0, TMCI0, TMO0, TMRI1, TMCI1, and TMO1). Port 2 pin functions are shown in table 8.5. 221 Table 8.5 Pin P27/TIOCB5/ TMO1 Port 2 Pin Functions Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 5 setting by bits MD3 to MD0 in TMDR5, bits IOB3 to IOB0 in TIOR5, bits CCLR1 and CCLR0 in TCR5, bits OS3 to OS0 in TCSR1, and bit P27DDR. OS3 to OS0 TPU Channel 5 Setting P27DDR Pin function Table Below (1) -- TIOCB5 output All 0 Table Below (2) 0 P27 input 1 P27 output TIOCB5 input * Any 1 -- -- TMO1 output TPU Channel 5 Setting MD3 to MD0 IOB3 to IOB0 (2) B'0000 B'0100 B'1xxx -- -- (1) B'0001 to B'0011 B'0101 to B'0111 -- Output compare output (2) B'0010 -- (2) B'xx00 (1) B'0011 (2) B'0000, B'01xx Other than B'xx00 CCLR1, CCLR0 Output function -- -- -- -- Other than B'10 PWM mode 2 output B'10 -- x: Don't care Note: * TIOCB5 input when TPU channel 5 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOB3 to IOB0 = B'1xxx). 222 Table 8.5 Pin P26/TIOCA5/ TMO0 Port 2 Pin Functions (cont) Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 5 setting by bits MD3 to MD0 in TMDR5, bits IOA3 to IOA0 in TIOR5, bits CCLR1 and CCLR0 in TCR5, bits OS3 to OS0 in TCSR0, and bit P26DDR. OS3 to OS0 TPU Channel 5 Setting P26DDR NDER6 Pin function Table Below (1) -- -- TIOCA5 output All 0 Table Below (2) 0 -- P26 input 1 0 P26 output TIOCA5 input *1 Any 1 -- -- -- TMO0 output TPU Channel 5 Setting MD3 to MD0 IOA3 to IOA0 (2) B'0000 B'0100 B'1xxx -- -- (1) (2) B'001x (1) B'0010 (1) B'0011 (2) B'0000, B'01xx B'0001 to B'xx00 B'0011 B'0101 to B'0111 -- Output compare output -- -- -- Other than B'xx00 CCLR1, CCLR0 Output function Other than B'01 PWM mode 2 output B'01 -- PWM mode 1 output*2 x: Don't care Notes: 1. TIOCA5 input when TPU channel 5 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOA3 to IOA0 = B'1xxx). 2. TIOCB5 output is disabled. 223 Table 8.5 Pin P25/TIOCB4/ TMCI1 Port 2 Pin Functions (cont) Selection Method and Pin Functions This pin is used as the 8-bit timer external clock input pin when external clock is selected with bits CKS2 to CKS0 in TCR1. The pin function is switched as shown below according to the combination of the TPU channel 4 setting by bits MD3 to MD0 in TMDR4 and bits IOB3 to IOB0 in TIOR4, bits CCLR1 and CCLR0 in TCR4, and bit P25DDR. TPU Channel 4 Setting P25DDR Pin function Table Below (1) -- TIOCB4 output Table Below (2) 0 P25 input 1 P25 output TIOCB4 input * TMCI1 input TPU Channel 4 Setting MD3 to MD0 IOB3 to IOB0 (2) B'0000 B'0100 B'1xxx -- -- (1) B'0001 to B'0011 B'0101 to B'0111 -- Output compare output (2) B'0010 -- (2) B'xx00 (1) B'0011 (2) B'0000, B'01xx Other than B'xx00 CCLR1, CCLR0 Output function -- -- -- -- Other than B'10 PWM mode 2 output B'10 -- x: Don't care Note: * TIOCB4 input when TPU channel 4 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOB3 to IOB0 = B'10xx). 224 Table 8.5 Pin P24/TIOCA4/ TMRI1 Port 2 Pin Functions (cont) Selection Method and Pin Functions This pin is used as the 8-bit timer counter reset pin when bits CCLR1 and CCLR0 in TCR1 are both set to 1. The pin function is switched as shown below according to the combination of the TPU channel 4 setting by bits MD3 to MD0 in TMDR4, bits IOA3 to IOA0 in TIOR4, bits CCLR1 and CCLR0 in TCR4, and bit P24DDR. TPU Channel 4 Setting P24DDR Pin function Table Below (1) -- TIOCA4 output Table Below (2) 0 P24 input 1 P24 output TIOCA4 input *1 TMRI1 input TPU Channel 4 Setting MD3 to MD0 IOA3 to IOA0 (2) B'0000 B'0100 B'1xxx -- -- (1) (2) B'001x (1) B'0010 (1) B'0011 (2) B'0000, B'01xx B'0001 to B'xx00 B'0011 B'0101 to B'0111 -- Output compare output -- -- -- Other than B'xx00 CCLR1, CCLR0 Output function Other than B'01 PWM mode 2 output B'01 -- PWM mode 1 output*2 x: Don't care Notes: 1. TIOCA4 input when TPU channel 4 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOA3 to IOA0 = B'10xx). 2. TIOCB4 output is disabled. 225 Table 8.5 Pin P23/TIOCD3/ TMCI0 Port 2 Pin Functions (cont) Selection Method and Pin Functions This pin is used as the 8-bit timer external clock input pin when external clock is selected with bits CKS2 to CKS0 in TCR0. The pin function is switched as shown below according to the combination of the TPU channel 3 setting by bits MD3 to MD0 in TMDR3, bits IOD3 to IOD0 in TIOR3L, bits CCLR2 to CCLR0 in TCR3, and bit P23DDR. TPU Channel 3 Setting P23DDR Pin function Table Below (1) -- TIOCD3 output Table Below (2) 0 P23 input 1 P23 output TIOCD3 input * TMCI0 input TPU Channel 3 Setting MD3 to MD0 IOD3 to IOD0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) B'0001 to B'0011 B'0101 to B'0111 -- (2) B'0010 -- (2) B'xx00 (1) B'0011 (2) Other than B'xx00 CCLR2 to CCLR0 Output function -- -- Other than B'110 PWM mode 2 output B'110 -- Output compare output -- -- -- x: Don't care Note: * TIOCD3 input when TPU channel 3 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOD3 to IOD0 = B'10xx). 226 Table 8.5 Pin P22/TIOCC3/ TMCI0 Port 2 Pin Functions (cont) Selection Method and Pin Functions This pin is used as the 8-bit timer counter reset pin when bits CCLR1 and CCLR0 in TCR0 are both set to 1. The pin function is switched as shown below according to the combination of the TPU channel 3 setting by bits MD3 to MD0 in TMDR3, bits IOC3 to IOC0 in TIOR3L, bits CCLR2 to CCLR0 in TCR3, and bit P22DDR. TPU Channel 3 Setting P22DDR Pin function Table Below (1) -- TIOCC3 output Table Below (2) 0 P22 input 1 P22 output TIOCC3 input *1 TMRI0 input TPU Channel 3 Setting MD3 to MD0 IOC3 to IOC0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) (2) B'001x (1) B'0010 (1) B'0011 (2) B'0001 to B'xx00 B'0011 B'0101 to B'0111 -- -- -- Other than B'xx00 CCLR2 to CCLR0 Output function Other than B'101 PWM mode 2 output B'101 -- Output compare output -- PWM mode 1 output*2 -- x: Don't care Notes: 1. TIOCC3 input when TPU channel 3 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOC3 to IOC0 = B'10xx). 2. TIOCD3 output is disabled. When BFA = 1 or BFB = 1 in TMDR3, output is disabled and setting (2) applies. 227 Table 8.5 Pin P21/TIOCB3 Port 2 Pin Functions (cont) Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 3 setting by bits MD3 to MD0 in TMDR3, bits IOB3 to IOB0 in TIOR3H, bits CCLR2 to CCLR0 in TCR3, and bit P21DDR. TPU Channel 3 Setting P21DDR Pin function Table Below (1) -- TIOCB3 output Table Below (2) 0 P21 input 1 P21 output TIOCB3 input * TPU Channel 3 Setting MD3 to MD0 IOB3 to IOB0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) B'0001 to B'0011 B'0101 to B'0111 -- (2) B'0010 -- (2) B'xx00 (1) B'0011 (2) Other than B'xx00 CCLR2 to CCLR0 Output function -- -- Other than B'010 PWM mode 2 output B'010 -- Output compare output -- -- -- x: Don't care Note: * TIOCB3 input when TPU channel 3 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOB3 to IOB0 = B'10xx). 228 Table 8.5 Pin P20/TIOCA3 Port 2 Pin Functions (cont) Selection Method and Pin Functions The pin function is switched as shown below according to the combination of the TPU channel 3 setting by bits MD3 to MD0 in TMDR3, bits IOA3 to IOA0 in TIOR3H, bits CCLR2 to CCLR0 in TCR3, and bit P20DDR. TPU Channel 3 Setting P20DDR Pin function Table Below (1) -- TIOCA3 output Table Below (2) 0 P20 input 1 P20 output TIOCA3 input *1 TPU Channel 3 Setting MD3 to MD0 IOA3 to IOA0 (2) B'0000 B'0000 B'0100 B'1xxx -- (1) (2) B'001x (1) B'0010 (1) B'0011 (2) B'0001 to B'xx00 B'0011 B'0101 to B'0111 -- -- -- Other than B'xx00 CCLR2 to CCLR0 Output function Other than B'001 PWM mode 2 output B'001 -- Output compare output -- PWM mode 1 output*2 -- x: Don't care Notes: 1. TIOCA3 input when TPU channel 3 is in normal operation mode (MD3 to MD0 = B'0000) and input capture is set (IOA3 to IOA0 = B'10xx). 2. TIOCB3 output is disabled. 229 8.4 8.4.1 Port 3 Overview Port 3 is a 6-bit I/O port. Port 3 pins also function as SCI I/O pins (TxD0, RxD0, SCK0, TxD1, RxD1, and SCK1) and interrupt input pins (IRQ4, IRQ5). Port 3 pin functions are the same in all operating modes. The interrupt input pins (IRQ4, IRQ5) are Schmitt-triggered inputs. Figure 8.3 shows the port 3 pin configuration. Port 3 pins P35 (I/O)/ SCK1(I/O)/ IRQ5 (input) P34 (I/O)/ SCK0(I/O)/ IRQ4 (input) Port 3 P33 (I/O)/ RxD1 (input) P32 (I/O)/ RxD0 (input) P31 (I/O)/ TxD1 (output) P30 (I/O)/ TxD0 (output) Figure 8.3 Port 3 Pin Functions 8.4.2 Register Configuration Table 8.6 shows the port 3 register configuration. Table 8.6 Name Port 3 data direction register Port 3 data register Port 3 register Port 3 open drain control register Port 3 Registers Abbreviation P3DDR P3DR PORT3 P3ODR R/W W R/W R R/W Initial Value*1 H'00 H'00 Undefined H'00 Address*2 H'FEB2 H'FF62 H'FF52 H'FF76 Notes: 1. Value of bits 5 to 0. 2. Lower 16 bits of the address. 230 Port 3 Data Direction Register (P3DDR) Bit : 7 -- Initial value : R/W : -- 6 -- -- 5 0 W 4 0 W 3 0 W 2 0 W 1 0 W 0 0 W P35DDR P34DDR P33DDR P32DDR P31DDR P30DDR Undefined Undefined P3DDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port 3. Bits 7 and 6 are reserved. P3DDR cannot be read; if it is, an undefined value will be read. Setting a P3DDR bit to 1 makes the corresponding port 3 pin an output pin, while clearing the bit to 0 makes the pin an input pin. P3DDR is initialized to H'00 (bits 5 to 0) by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. As the SCI is initialized, the pin states are determined by the P3DDR and P3DR specifications. Port 3 Data Register (P3DR) Bit : 7 -- Initial value : R/W : -- 6 -- -- 5 P35DR 0 R/W 4 P34DR 0 R/W 3 P33DR 0 R/W 2 P32DR 0 R/W 1 P31DR 0 R/W 0 P30DR 0 R/W Undefined Undefined P3DR is an 8-bit readable/writable register that stores output data for the port 3 pins (P35 to P30). Bits 7 and 6 are reserved; they return an undetermined value if read, and cannot be modified. P3DR is initialized to H'00 (bits 5 to 0) by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. 231 Port 3 Register (PORT3) Bit : 7 -- Initial value : R/W : -- 6 -- -- 5 P35 --* R 4 P34 --* R 3 P33 --* R 2 P32 --* R 1 P31 --* R 0 P30 --* R Undefined Undefined Note: * Determined by state of pins P35 to P30. PORT3 is an 8-bit read-only register that shows the pin states. Writing of output data for the port 3 pins (P35 to P30) must always be performed on P3DR. Bits 7 and 6 are reserved; they return an undetermined value if read, and cannot be modified. If a port 3 read is performed while P3DDR bits are set to 1, the P3DR values are read. If a port 3 read is performed while P3DDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORT3 contents are determined by the pin states, as P3DDR and P3DR are initialized. PORT3 retains its prior state after a manual reset, and in software standby mode. Port 3 Open Drain Control Register (P3ODR) Bit : 7 -- Initial value : R/W : -- 6 -- -- 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W P35ODR P34ODR P33ODR P32ODR P31ODR P30ODR Undefined Undefined P3ODR is an 8-bit readable/writable register that controls the PMOS on/off status for each port 3 pin (P35 to P30). Bits 7 and 6 are reserved; they return an undetermined value if read, and cannot be modified. Setting a P3ODR bit to 1 makes the corresponding port 3 pin an NMOS open-drain output pin, while clearing the bit to 0 makes the pin a CMOS output pin. P3ODR is initialized to H'00 (bits 5 to 0) by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. 232 8.4.3 Pin Functions Port 3 pins also function as SCI I/O pins (TxD0, RxD0, SCK0, TxD1, RxD1, and SCK1) and interrupt input pins (IRQ4, IRQ5). Port 3 pin functions are shown in table 8.7. Table 8.7 Pin P35/SCK1/IRQ5 Port 3 Pin Functions Selection Method and Pin Functions The pin function is switched as shown below according to the combination of bit C/A in the SCI1 SMR, bits CKE0 and CKE1 in SCR, and bit P35DDR. CKE1 C/A CKE0 P35DDR Pin function 0 0 1 0 1 -- 0 1 -- -- 1 -- -- -- SCK1 input pin P35 SCK1 SCK1 P35 input pin output pin*1 output pin*1 output pin*1 IRQ5 interrupt input pin*2 Notes: 1. When P35ODR = 1, the pin becomes on NMOS open-drain output. 2. When this pin is used as an external interrupt input, it should not be used as an input/output pin with other functions. P34/SCK0/IRQ4 The pin function is switched as shown below according to the combination of bit C/A in the SCI0 SMR, bits CKE0 and CKE1 in SCR, and bit P34DDR. CKE1 C/A CKE0 P34DDR Pin function 0 0 1 0 1 -- 0 1 -- -- 1 -- -- -- SCK0 input pin P34 SCK0 SCK0 P34 input pin output pin*1 output pin*1 output pin*1 IRQ4 interrupt input pin*2 Notes: 1. When P34ODR = 1, the pin becomes an NMOS open-drain output. 2. When this pin is used as an external interrupt input, it should not be used as an input/output pin with other functions. 233 Table 8.7 Pin P33/RxD1 Port 3 Pin Functions (cont) Selection Method and Pin Functions The pin function is switched as shown below according to the combination of bit RE in the SCI1 SCR, and bit P33DDR. RE P33DDR Pin function 0 P33 input pin 0 1 P33 output pin* 1 -- RxD1 input pin Note: * When P33ODR = 1, the pin becomes an NMOS open-drain output. P32/RxD0 The pin function is switched as shown below according to the combination of bit RE in the SCI0 SCR, and bit P32DDR. RE P32DDR Pin function 0 P32 input pin 0 1 P32 output pin* 1 -- RxD0 input pin Note: * When P32ODR = 1, the pin becomes an NMOS open-drain output. P31/TxD1 The pin function is switched as shown below according to the combination of bit TE in the SCI1 SCR, and bit P31DDR. TE P31DDR Pin function 0 P31 input pin 0 1 P31 output pin* 1 -- TxD1 output pin Note: * When P31ODR = 1, the pin becomes an NMOS open-drain output. P30/TxD0 The pin function is switched as shown below according to the combination of bit TE in the SCI0 SCR, and bit P30DDR. TE P30DDR Pin function 0 P30 input pin 0 1 P30 output pin* 1 -- TxD0 output pin Note: * When P30ODR = 1, the pin becomes an NMOS open-drain output. 234 8.5 8.5.1 Port 4 Overview Port 4 is an 8-bit input-only port. Port 4 pins also function as A/D converter analog input pins (AN0 to AN7) and D/A converter analog output pins (DA0 and DA1). Port 4 pin functions are the same in all operating modes. Figure 8.4 shows the port 4 pin configuration. Port 4 pins P47 (input)/ AN7 (input)/DA1 (output) P46 (input)/ AN6 (input)/DA0 (output) P45 (input)/ AN5 (input) Port 4 P44 (input)/ AN4 (input) P43 (input)/ AN3 (input) P42 (input)/ AN2 (input) P41 (input)/ AN1 (input) P40 (input)/ AN0 (input) Figure 8.4 Port 4 Pin Functions 235 8.5.2 Register Configuration Table 8.8 shows the port 4 register configuration. Port 4 is an input-only port, and does not have a data direction register or data register. Table 8.8 Name Port 4 register Port 4 Registers Abbreviation PORT4 R/W R Initial Value Undefined Address* H'FF53 Note: * Lower 16 bits of the address. Port 4 Register (PORT4): Bit : 7 P47 Initial value : R/W : --* R 6 P46 --* R 5 P45 --* R 4 P44 --* R 3 P43 --* R 2 P42 --* R 1 P41 --* R 0 P40 --* R Note: * Determined by state of pins P47 to P40. PORT4 is an 8-bit read-only port. A read always returns the pin states. Writes are invalid. 8.5.3 Pin Functions Port 4 pins also function as A/D converter analog input pins (AN0 to AN7) and D/A converter analog output pins (DA0 and DA1). 236 8.6 8.6.1 Port A Overview Port A is an 4-bit I/O port. Port A pins also function as address bus outputs. The pin functions change according to the operating mode. Port A has a built-in MOS input pull-up function that can be controlled by software. Figure 8.5 shows the port A pin configuration. Port A pins PA3 / A19 PA2 / A18 Port A PA1 / A17 PA0 / A16 Pin functions in modes 1, 2, 3, and 7* PA3 (I/O) PA2 (I/O) PA1 (I/O) PA0 (I/O) Pin functions in modes 4 and 5 A1 9 (output) A1 8 (output) A1 7 (output) A1 6 (output) Pin functions in mode 6* PA3 (input)/ A19 (output) PA2 (input)/ A18 (output) PA1 (input)/ A17 (output) PA0 (input)/ A16 (output) Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. Figure 8.5 Port A Pin Functions 237 8.6.2 Register Configuration Table 8.9 shows the port A register configuration. Table 8.9 Name Port A data direction register Port A data register Port A register Port A MOS pull-up control register Port A open-drain control register Port A Registers Abbreviation PADDR PADR PORTA PAPCR PAODR R/W W R/W R R/W R/W Initial Value*1 H'0 H'0 Undefined H'0 H'0 Address*2 H'FEB9 H'FF69 H'FF59 H'FF70 H'FF77 Notes: 1. Value of bits 3 to 0. 2. Lower 16 bits of the address. Port A Data Direction Register (PADDR) Bit : 7 -- Initial value : R/W : -- 6 -- -- 5 -- -- 4 -- -- 3 0 W 2 0 W 1 0 W 0 0 W PA3DDR PA2DDR PA1DDR PA0DDR Undefined Undefined Undefined Undefined PADDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port A. PADDR cannot be read; if it is, an undefined value will be read. Bits 7 to 4 are reserved. PADDR is initialized to H'0 (bits 3 to 0) by a power-on reset and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. The OPE bit in SBYCR is used to select whether the address output pins retain their output state or become highimpedance when a transition is made to software standby mode. * Modes 1, 2, 3, and 7* Setting a PADDR bit to 1 makes the corresponding port A pin an output port, while clearing the bit to 0 makes the pin an input port. * Modes 4 and 5 The corresponding port A pins are address outputs irrespective of the value of bits PA3DDR to PA0DDR. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 238 * Mode 6* Setting a PADDR bit to 1 makes the corresponding port A pin an address output while clearing the bit to 0 makes the pin an input port. Port A Data Register (PADR) Bit : 7 -- Initial value : R/W : -- 6 -- -- 5 -- -- 4 -- -- 3 PA3DR 0 R/W 2 PA2DR 0 R/W 1 PA1DR 0 R/W 0 PA0DR 0 R/W Undefined Undefined Undefined Undefined PADR is an 8-bit readable/writable register that stores output data for the port A pins (PA3 to PA0). Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified. PADR is initialized to H'0 (bits 3 to 0) by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. Port A Register (PORTA) Bit : 7 -- Initial value : R/W : -- 6 -- -- 5 -- -- 4 -- -- 3 PA3 --* R 2 PA2 --* R 1 PA1 --* R 0 PA0 --* R Undefined Undefined Undefined Undefined Note: * Determined by state of pins PA3 to PA0. PORTA is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port A pins (PA3 to PA 0) must always be performed on PADR. Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified. If a port A read is performed while PADDR bits are set to 1, the PADR values are read. If a port A read is performed while PADDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTA contents are determined by the pin states, as PADDR and PADR are initialized. PORTA retains its prior state after a manual reset, and in software standby mode. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 239 Port A MOS Pull-Up Control Register (PAPCR) Bit : 7 -- Initial value : R/W : -- 6 -- -- 5 -- -- 4 -- -- 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W PA3PCR PA2PCR PA1PCR PA0PCR Undefined Undefined Undefined Undefined PAPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port A on an individual bit basis. Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified. Bits 3 to 0 are valid in modes 1, 2, 3, 6, and 7, and all the bits are invalid in modes 4 and 5. When a PADDR bit is cleared to 0 (input port setting), setting the corresponding PAPCR bit to 1 turns on the MOS input pull-up for the corresponding pin. PAPCR is initialized to H'0 (bits 3 to 0) by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. Port A Open Drain Control Register (PAODR) Bit : 7 -- Initial value : R/W : -- 6 -- -- 5 -- -- 4 -- -- 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W PA3ODR PA2ODR PA1ODR PA0ODR Undefined Undefined Undefined Undefined PAODR is an 8-bit readable/writable register that controls whether PMOS is on or off for each port A pin (PA3 to PA 0). Bits 7 to 4 are reserved; they return an undetermined value if read, and cannot be modified. All bits are valid in modes 1, 2, 3, and 7.* Setting a PAODR bit to 1 makes the corresponding port A pin an NMOS open-drain output, while clearing the bit to 0 makes the pin a CMOS output. PAODR is initialized to H'0 (bits 3 to 0) by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 240 8.6.3 Pin Functions Modes 1, 2, 3 and 7*: In mode 1, 2, 3, and 7*, port A pins function as I/O ports. Input or output can be specified for each pin on an individual bit basis. Setting a PADDR bit to 1 makes the corresponding port A pin an output port, while clearing the bit to 0 makes the pin an input port. Port A pin functions in modes 1, 2, 3, and 7 are shown in figure 8.6. PA3 (I/O) Port A PA2 (I/O) PA1 (I/O) PA0 (I/O) Figure 8.6 Port A Pin Functions (Modes 1, 2, 3, and 7)* Modes 4 and 5: In modes 4 and 5, the lower 4 bits of port A are designated as address outputs automatically. Port A pin functions in modes 4 and 5 are shown in figure 8.7. A19 (output) Port A A18 (output) A17 (output) A16 (output) Figure 8.7 Port A Pin Functions (Modes 4 and 5) Mode 6*: In mode 6*, port A pins function as address outputs or input ports. Input or output can be specified on an individual bit basis. Setting a PADDR bit to 1 makes the corresponding port A pin an address output, while clearing the bit to 0 makes the pin an input port. Port A pin functions in mode 6 are shown in figure 8.8. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 241 When PADDR = 1 A19 (output) Port A A18 (output) A17 (output) A16 (output) When PADDR = 0 PA3 (input) PA2 (input) PA1 (input) PA0 (input) Figure 8.8 Port A Pin Functions (Mode 6)* 8.6.4 MOS Input Pull-Up Function Port A has a built-in MOS input pull-up function that can be controlled by software. This MOS input pull-up function can be used in modes 1, 2, 3, 6, and 7*, and cannot be used in modes 4 and 5. MOS input pull-up can be specified as on or off on an individual bit basis. When a PADDR bit is cleared to 0, setting the corresponding PAPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby mode. The prior state is retained after a manual reset, and in software standby mode. Table 8.10 summarizes the MOS input pull-up states. Table 8.10 MOS Input Pull-Up States (Port A) Modes Power-On Hardware Reset Standby Mode Manual Software Reset Standby Mode ON/OFF OFF In Other Operations 1 to 3, 6, 7* PA3 to PA 0 OFF 4, 5 PA3 to PA 0 Legend: OFF : MOS input pull-up is always off. ON/OFF : On when PADDR = 0 and PAPCR = 1; otherwise off. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 242 8.7 8.7.1 Port B Overview Port B is an 8-bit I/O port. Port B has an address bus output function, and the pin functions change according to the operating mode. Port B has a built-in MOS input pull-up function that can be controlled by software. Figure 8.9 shows the port B pin configuration. Port B pins PB7 / A15 PB6 / A14 PB5 / A13 PB4 / A12 Port B PB3 / A11 PB2 / A10 PB1 / A9 PB0 / A8 Pin functions in modes 1, 4, and 5* A15 (output) A14 (output) A13 (output) A12 (output) A11 (output) A10 (output) A9 (output) A8 (output) Pin functions in modes 2 and 6* PB7 (input)/A15 (output) PB6 (input)/A14 (output) PB5 (input)/A13 (output) PB4 (input)/A12 (output) PB3 (input)/A11 (output) PB2 (input)/A10 (output) PB1 (input)/A9 (output) PB0 (input)/A8 (output) Pin functions in modes 3 and 7* PB7 (I/O) PB6 (I/O) PB5 (I/O) PB4 (I/O) PB3 (I/O) PB2 (I/O) PB1 (I/O) PB0 (I/O) Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. Figure 8.9 Port B Pin Functions 243 8.7.2 Register Configuration Table 8.11 shows the port B register configuration. Table 8.11 Port B Registers Name Port B data direction register Port B data register Port B register Port B MOS pull-up control register Note: * Lower 16 bits of the address. Abbreviation PBDDR PBDR PORTB PBPCR R/W W R/W R R/W Initial Value H'00 H'00 Undefined H'00 Address * H'FEBA H'FF6A H'FF5A H'FF71 Port B Data Direction Register (PBDDR) Bit : 7 0 W 6 0 W 5 0 W 4 0 W 3 0 W 2 0 W 1 0 W 0 0 W PB7DDR PB6DDR PB5DDR PB4DDR PB3DDR PB2DDR PB1DDR PB0DDR Initial value : R/W : PBDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port B. PBDDR cannot be read; if it is, an undefined value will be read. PBDDR is initialized to H'00 by a power-on reset and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. The OPE bit in SBYCR is used to select whether the address output pins retain their output state or become high-impedance when a transition is made to software standby mode. * Modes 1, 4, and 5* The corresponding port B pins are address outputs irrespective of the value of the PBDDR bits. * Modes 2 and 6* Setting a PBDDR bit to 1 makes the corresponding port B pin an address output, while clearing the bit to 0 makes the pin an input port. * Modes 3 and 7* Setting a PBDDR bit to 1 makes the corresponding port B pin an output port, while clearing the bit to 0 makes the pin an input port. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 244 Port B Data Register (PBDR) Bit : 7 PB7DR Initial value : R/W : 0 R/W 6 PB6DR 0 R/W 5 PB5DR 0 R/W 4 PB4DR 0 R/W 3 PB3DR 0 R/W 2 PB2DR 0 R/W 1 PB1DR 0 R/W 0 PB0DR 0 R/W PBDR is an 8-bit readable/writable register that stores output data for the port B pins (PB7 to PB0). PBDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. Port B Register (PORTB) Bit : 7 PB7 Initial value : R/W : --* R 6 PB6 --* R 5 PB5 --* R 4 PB4 --* R 3 PB3 --* R 2 PB2 --* R 1 PB1 --* R 0 PB0 --* R Note: * Determined by state of pins PB7 to PB0. PORTB is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port B pins (PB 7 to PB0) must always be performed on PBDR. If a port B read is performed while PBDDR bits are set to 1, the PBDR values are read. If a port B read is performed while PBDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTB contents are determined by the pin states, as PBDDR and PBDR are initialized. PORTB retains its prior state after a manual reset, and in software standby mode. 245 Port B MOS Pull-Up Control Register (PBPCR) Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W PB7PCR PB6PCR PB5PCR PB4PCR PB3PCR PB2PCR PB1PCR PB0PCR Initial value : R/W : PBPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port B on an individual bit basis. When a PBDDR bit is cleared to 0 (input port setting) in mode 2, 3, 6, or 7*, setting the corresponding PBPCR bit to 1 turns on the MOS input pull-up for the corresponding pin. PBPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 8.7.3 Pin Functions Modes 1, 4, and 5*: In modes 1, 4, and 5*, port B pins are automatically designated as address outputs. Port B pin functions in modes 1, 4, and 5 are shown in figure 8.10. A15 (output) A14 (output) A13 (output) Port B A12 (output) A11 (output) A10 (output) A9 (output) A8 (output) Figure 8.10 Port B Pin Functions (Modes 1, 4, and 5)* Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 246 Modes 2 and 6*: In modes 2 and 6*, port B pins function as address outputs or input ports. Input or output can be specified on an individual bit basis. Setting a PBDDR bit to 1 makes the corresponding port B pin an address output, while clearing the bit to 0 makes the pin an input port. Port B pin functions in modes 2 and 6 are shown in figure 8.11. When PBDDR = 1 A15 (output) A14 (output) A13 (output) Port B A12 (output) A11 (output) A10 (output) A9 (output) A8 (output) When PBDDR = 0 PB7 (input) PB6 (input) PB5 (input) PB4 (input) PB3 (input) PB2 (input) PB1 (input) PB0 (input) Figure 8.11 Port B Pin Functions (Modes 2 and 6) * Modes 3 and 7*: In modes 3 and 7*, port B pins function as I/O ports. Input or output can be specified for each pin on an individual bit basis. Setting a PBDDR bit to 1 makes the corresponding port B pin an output port, while clearing the bit to 0 makes the pin an input port. Port B pin functions in modes 3 and 7 are shown in figure 8.12. PB7 (I/O) PB6 (I/O) PB5 (I/O) Port B PB4 (I/O) PB3 (I/O) PB2 (I/O) PB1 (I/O) PB0 (I/O) Figure 8.12 Port B Pin Functions (Modes 3 and 7)* Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 247 8.7.4 MOS Input Pull-Up Function Port B has a built-in MOS input pull-up function that can be controlled by software. This MOS input pull-up function can be used in modes 2, 3, 6, and 7, and can be specified as on or off on an individual bit basis. When a PBDDR bit is cleared to 0 in mode 2, 3, 6, or 7, setting the corresponding PBPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby mode. The prior state is retained after a manual reset, and in software standby mode. Table 8.12 summarizes the MOS input pull-up states. Table 8.12 MOS Input Pull-Up States (Port B) Modes 1, 4, 5* 2, 3, 6, 7* Power-On Hardware Reset Standby Mode OFF Manual Software Reset Standby Mode OFF ON/OFF In Other Operations Legend: OFF : MOS input pull-up is always off. ON/OFF : On when PBDDR = 0 and PBPCR = 1; otherwise off. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 248 8.8 8.8.1 Port C Overview Port C is an 8-bit I/O port. Port C has an address bus output function, and the pin functions change according to the operating mode. Port C has a built-in MOS input pull-up function that can be controlled by software. Figure 8.13 shows the port C pin configuration. Pin functions in modes 1, 4, and 5* A7 (output) A6 (output) A5 (output) A4 (output) A3 (output) A2 (output) A1 (output) A0 (output) Port C pins PC7 / A7 PC6 / A6 PC5 / A5 Port C PC4 / A4 PC3 / A3 PC2 / A2 PC1 / A1 PC0 / A0 Pin functions in modes 2 and 6* PC7 (input)/ A7 (output) PC6 (input)/ A6 (output) PC5 (input)/ A5 (output) PC4 (input)/ A4 (output) PC3 (input)/ A3 (output) PC2 (input)/ A2 (output) PC1 (input)/ A1 (output) PC0 (input)/ A0 (output) Pin functions in modes 3 and 7* PC7 (I/O) PC6 (I/O) PC5 (I/O) PC4 (I/O) PC3 (I/O) PC2 (I/O) PC1 (I/O) PC0 (I/O) Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. Figure 8.13 Port C Pin Functions 249 8.8.2 Register Configuration Table 8.13 shows the port C register configuration. Table 8.13 Port C Registers Name Port C data direction register Port C data register Port C register Port C MOS pull-up control register Note: * Lower 16 bits of the address. Abbreviation PCDDR PCDR PORTC PCPCR R/W W R/W R R/W Initial Value H'00 H'00 Undefined H'00 Address * H'FEBB H'FF6B H'FF5B H'FF72 Port C Data Direction Register (PCDDR) Bit Initial value R/W : : : 7 0 W 6 0 W 5 0 W 4 0 W 3 0 W 2 0 W 1 0 W 0 0 W PC7DDR PC6DDR PC5DDR PC4DDR PC3DDR PC2DDR PC1DDR PC0DDR PCDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port C. PCDDR cannot be read; if it is, an undefined value will be read. PCDDR is initialized to H'00 by a power-on reset and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. The OPE bit in SBYCR is used to select whether the address output pins retain their output state or become high-impedance when a transition is made to software standby mode. * Modes 1, 4, and 5* The corresponding port C pins are address outputs irrespective of the value of the PCDDR bits. * Modes 2 and 6* Setting a PCDDR bit to 1 makes the corresponding port C pin an address output, while clearing the bit to 0 makes the pin an input port. * Modes 3 and 7* Setting a PCDDR bit to 1 makes the corresponding port C pin an output port, while clearing the bit to 0 makes the pin an input port. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 250 Port C Data Register (PCDR) Bit : 7 PC7DR Initial value : R/W : 0 R/W 6 PC6DR 0 R/W 5 PC5DR 0 R/W 4 PC4DR 0 R/W 3 PC3DR 0 R/W 2 PC2DR 0 R/W 1 0 R/W 0 0 R/W PC1DR PC0DR PCDR is an 8-bit readable/writable register that stores output data for the port C pins (PC7 to PC0). PCDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. Port C Register (PORTC) Bit : 7 PC7 Initial value : R/W : --* R 6 PC6 --* R 5 PC5 --* R 4 PC4 --* R 3 PC3 --* R 2 PC2 --* R 1 PC1 --* R 0 PC0 --* R Note: * Determined by state of pins PC7 to PC0. PORTC is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port C pins (PC 7 to PC0) must always be performed on PCDR. If a port C read is performed while PCDDR bits are set to 1, the PCDR values are read. If a port C read is performed while PCDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTC contents are determined by the pin states, as PCDDR and PCDR are initialized. PORTC retains its prior state after a manual reset, and in software standby mode. 251 Port C MOS Pull-Up Control Register (PCPCR) Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W PC7PCR PC6PCR PC5PCR PC4PCR PC3PCR PC2PCR PC1PCR PC0PCR Initial value : R/W : PCPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port C on an individual bit basis. When a PCDDR bit is cleared to 0 (input port setting) in mode 2, 3, 6, or 7*, setting the corresponding PCPCR bit to 1 turns on the MOS input pull-up for the corresponding pin. PCPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 8.8.3 Pin Functions Modes 1, 4, and 5*: In modes 1, 4, and 5*, port C pins are automatically designated as address outputs. Port C pin functions in modes 1, 4, and 5 are shown in figure 8.14. A7 (output) A6 (output) A5 (output) Port C A4 (output) A3 (output) A2 (output) A1 (output) A0 (output) Figure 8.14 Port C Pin Functions (Modes 1, 4, and 5)* Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 252 Modes 2 and 6*: In modes 2 and 6*, port C pins function as address outputs or input ports. Input or output can be specified on an individual bit basis. Setting a PCDDR bit to 1 makes the corresponding port C pin an address output, while clearing the bit to 0 makes the pin an input port. Port C pin functions in modes 2 and 6 are shown in figure 8.15. When PCDDR = 1 A7 (output) A6 (output) A5 (output) Port C A4 (output) A3 (output) A2 (output) A1 (output) A0 (output) When PCDDR = 0 PC7 (input) PC6 (input) PC5 (input) PC4 (input) PC3 (input) PC2 (input) PC1 (input) PC0 (input) Figure 8.15 Port C Pin Functions (Modes 2 and 6)* Modes 3 and 7*: In modes 3 and 7*, port C pins function as I/O ports. Input or output can be specified for each pin on an individual bit basis. Setting a PCDDR bit to 1 makes the corresponding port C pin an output port, while clearing the bit to 0 makes the pin an input port. Port C pin functions in modes 3 and 7 are shown in figure 8.16. PC7 (I/O) PC6 (I/O) PC5 (I/O) Port C PC4 (I/O) PC3 (I/O) PC2 (I/O) PC1 (I/O) PC0 (I/O) Figure 8.16 Port C Pin Functions (Modes 3 and 7)* Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 253 8.8.4 MOS Input Pull-Up Function Port C has a built-in MOS input pull-up function that can be controlled by software. This MOS input pull-up function can be used in modes 2, 3, 6, and 7*, and can be specified as on or off on an individual bit basis. When a PCDDR bit is cleared to 0 in mode 2, 3, 6, or 7*, setting the corresponding PCPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby mode. The prior state is retained after a manual reset, and in software standby mode. Table 8.14 summarizes the MOS input pull-up states. Table 8.14 MOS Input Pull-Up States (Port C) Modes 1, 4, 5* 2, 3, 6, 7* Power-On Hardware Reset Standby Mode OFF Manual Software Reset Standby Mode OFF ON/OFF In Other Operations Legend: OFF : MOS input pull-up is always off. ON/OFF : On when PCDDR = 0 and PCPCR = 1; otherwise off. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 254 8.9 8.9.1 Port D Overview Port D is an 8-bit I/O port. Port D has a data bus I/O function, and the pin functions change according to the operating mode. Port D has a built-in MOS input pull-up function that can be controlled by software. Figure 8.17 shows the port D pin configuration. Port D pins PD7 / D15 PD6 / D14 PD5 / D13 Port D PD4 / D12 PD3 / D11 PD2 / D10 PD1 / D9 PD0 / D8 Pin functions in modes 1, 2, 4, 5, and 6* D15 (I/O) D14 (I/O) D13 (I/O) D12 (I/O) D11 (I/O) D10 (I/O) D9 (I/O) D8 (I/O) Pin functions in modes 3 and 7* PD7 (I/O) PD6 (I/O) PD5 (I/O) PD4 (I/O) PD3 (I/O) PD2 (I/O) PD1 (I/O) PD0 (I/O) Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. Figure 8.17 Port D Pin Functions 255 8.9.2 Register Configuration Table 8.15 shows the port D register configuration. Table 8.15 Port D Registers Name Port D data direction register Port D data register Port D register Port D MOS pull-up control register Note: * Lower 16 bits of the address. Abbreviation PDDDR PDDR PORTD PDPCR R/W W R/W R R/W Initial Value H'00 H'00 Undefined H'00 Address * H'FEBC H'FF6C H'FF5C H'FF73 Port D Data Direction Register (PDDDR) Bit : 7 0 W 6 0 W 5 0 W 4 0 W 3 0 W 2 0 W 1 0 W 0 0 W PD7DDR PD6DDR PD5DDR PD4DDR PD3DDR PD2DDR PD1DDR PD0DDR Initial value : R/W : PDDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port D. PDDDR cannot be read; if it is, an undefined value will be read.. PDDDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. * Modes 1, 2, 4, 5, and 6* The input/output direction specification by PDDDR is ignored, and port D is automatically designated for data I/O. * Modes 3 and 7* Setting a PDDDR bit to 1 makes the corresponding port D pin an output port, while clearing the bit to 0 makes the pin an input port. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 256 Port D Data Register (PDDR) Bit : 7 PD7DR Initial value : R/W : 0 R/W 6 PD6DR 0 R/W 5 PD5DR 0 R/W 4 PD4DR 0 R/W 3 PD3DR 0 R/W 2 PD2DR 0 R/W 1 0 R/W 0 0 R/W PD1DR PD0DR PDDR is an 8-bit readable/writable register that stores output data for the port D pins (PD7 to PD0). PDDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. Port D Register (PORTD) Bit : 7 PD7 Initial value : R/W : --* R 6 PD6 --* R 5 PD5 --* R 4 PD4 --* R 3 PD3 --* R 2 PD2 --* R 1 PD1 --* R 0 PD0 --* R Note: * Determined by state of pins PD7 to PD0. PORTD is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port D pins (PD7 to PD 0) must always be performed on PDDR. If a port D read is performed while PDDDR bits are set to 1, the PDDR values are read. If a port D read is performed while PDDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTD contents are determined by the pin states, as PDDDR and PDDR are initialized. PORTD retains its prior state after a manual reset, and in software standby mode. 257 Port D MOS Pull-Up Control Register (PDPCR) Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W PD7PCR PD6PCR PD5PCR PD4PCR PD3PCR PD2PCR PD1PCR PD0PCR Initial value : R/W : PDPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port D on an individual bit basis. When a PDDDR bit is cleared to 0 (input port setting) in mode 3 or 7, setting the corresponding PDPCR bit to 1 turns on the MOS input pull-up for the corresponding pin. PDPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. 8.9.3 Pin Functions Modes 1, 2, 4, 5, and 6*: In modes 1, 2, 4, 5, and 6*, port D pins are automatically designated as data I/O pins. Port D pin functions in modes 1, 2, 4, 5, and 6 are shown in figure 8.18. D15 (I/O) D14 (I/O) D13 (I/O) Port D D12 (I/O) D11 (I/O) D10 (I/O) D9 (I/O) D8 (I/O) Figure 8.18 Port D Pin Functions (Modes 1, 2, 4, 5, and 6)* Modes 3 and 7*: In modes 3 and 7*, port D pins function as I/O ports. Input or output can be specified for each pin on an individual bit basis. Setting a PDDDR bit to 1 makes the corresponding port D pin an output port, while clearing the bit to 0 makes the pin an input port. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 258 Port D pin functions in modes 3 and 7 are shown in figure 8.19. PD7 (I/O) PD6 (I/O) PD5 (I/O) Port D PD4 (I/O) PD3 (I/O) PD2 (I/O) PD1 (I/O) PD0 (I/O) Figure 8.19 Port D Pin Functions (Modes 3 and 7)* 8.9.4 MOS Input Pull-Up Function Port D has a built-in MOS input pull-up function that can be controlled by software. This MOS input pull-up function can be used in modes 3 and 7*, and can be specified as on or off on an individual bit basis. When a PDDDR bit is cleared to 0 in mode 3 or 7*, setting the corresponding PDPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby mode. The prior state is retained after a manual reset, and in software standby mode. Table 8.16 summarizes the MOS input pull-up states. Table 8.16 MOS Input Pull-Up States (Port D) Modes 1, 2, 4 to 6* 3, 7* Power-On Hardware Reset Standby Mode OFF Manual Software Reset Standby Mode OFF ON/OFF In Other Operations Legend: OFF : MOS input pull-up is always off. ON/OFF : On when PDDDR = 0 and PDPCR = 1; otherwise off. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 259 8.10 8.10.1 Port E Overview Port E is an 8-bit I/O port. Port E has a data bus I/O function, and the pin functions change according to the operating mode and whether 8-bit or 16-bit bus mode is selected. Port E has a built-in MOS input pull-up function that can be controlled by software. Figure 8.20 shows the port E pin configuration. Port E pins PE7 / D7 PE6 / D6 PE5 / D5 Port E PE4 / D4 PE3 / D3 PE2 / D2 PE1 / D1 PE0 / D0 Pin functions in modes 1, 2, 4, 5, and 6* PE7 (I/O)/ D7 (I/O) PE6 (I/O)/ D6 (I/O) PE5 (I/O)/ D5 (I/O) PE4 (I/O)/ D4 (I/O) PE3 (I/O)/ D3 (I/O) PE2 (I/O)/ D2 (I/O) PE1 (I/O)/ D1 (I/O) PE0 (I/O)/ D0 (I/O) Pin functions in modes 3 and 7* PE7 (I/O) PE6 (I/O) PE5 (I/O) PE4 (I/O) PE3 (I/O) PE2 (I/O) PE1 (I/O) PE0 (I/O) Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. Figure 8.20 Port E Pin Functions 260 8.10.2 Register Configuration Table 8.17 shows the port E register configuration. Table 8.17 Port E Registers Name Port E data direction register Port E data register Port E register Port E MOS pull-up control register Note: * Lower 16 bits of the address. Abbreviation PEDDR PEDR PORTE PEPCR R/W W R/W R R/W Initial Value H'00 H'00 Undefined H'00 Address * H'FEBD H'FF6D H'FF5D H'FF74 Port E Data Direction Register (PEDDR) Bit : 7 0 W 6 0 W 5 0 W 4 0 W 3 0 W 2 0 W 1 0 W 0 0 W PE7DDR PE6DDR PE5DDR PE4DDR PE3DDR PE2DDR PE1DDR PE0DDR Initial value : R/W : PEDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port E. PEDDR cannot be read; if it is, an undefined value will be read. PEDDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. * Modes 1, 2, 4, 5, and 6* When 8-bit bus mode has been selected, port E pins function as I/O ports. Setting a PEDDR bit to 1 makes the corresponding port E pin an output port, while clearing the bit to 0 makes the pin an input port. When 16-bit bus mode has been selected, the input/output direction specification by PEDDR is ignored, and port E is designated for data I/O. For details of 8-bit and 16-bit bus modes, see section 6, Bus Controller. * Modes 3 and 7* Setting a PEDDR bit to 1 makes the corresponding port E pin an output port, while clearing the bit to 0 makes the pin an input port. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 261 Port E Data Register (PEDR) Bit : 7 PE7DR Initial value : R/W : 0 R/W 6 PE6DR 0 R/W 5 PE5DR 0 R/W 4 PE4DR 0 R/W 3 PE3DR 0 R/W 2 PE2DR 0 R/W 1 PE1DR 0 R/W 0 PE0DR 0 R/W PEDR is an 8-bit readable/writable register that stores output data for the port E pins (PE7 to PE0). PEDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. Port E Register (PORTE) Bit : 7 PE7 Initial value : R/W : --* R 6 PE6 --* R 5 PE5 --* R 4 PE4 --* R 3 PE3 --* R 2 PE2 --* R 1 PE1 --* R 0 PE0 --* R Note: * Determined by state of pins PE7 to PE0. PORTE is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port E pins (PE7 to PE0) must always be performed on PEDR. If a port E read is performed while PEDDR bits are set to 1, the PEDR values are read. If a port E read is performed while PEDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTE contents are determined by the pin states, as PEDDR and PEDR are initialized. PORTE retains its prior state after a manual reset, and in software standby mode. Port E MOS Pull-Up Control Register (PEPCR) Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W PE7PCR PE6PCR PE5PCR PE4PCR PE3PCR PE2PCR PE1PCR PE0PCR Initial value : R/W : PEPCR is an 8-bit readable/writable register that controls the MOS input pull-up function incorporated into port E on an individual bit basis. 262 When a PEDDR bit is cleared to 0 (input port setting) when 8-bit bus mode is selected in mode 1, 2, 4, 5, or 6*, or in mode 3 or 7*, setting the corresponding PEPCR bit to 1 turns on the MOS input pull-up for the corresponding pin. PEPCR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. 8.10.3 Pin Functions Modes 1, 2, 4, 5, and 6*: In modes 1, 2, 4, 5, and 6*, when 8-bit access is designated and 8-bit bus mode is selected, port E pins are automatically designated as I/O ports. Setting a PEDDR bit to 1 makes the corresponding port E pin an output port, while clearing the bit to 0 makes the pin an input port. When 16-bit bus mode is selected, the input/output direction specification by PEDDR is ignored, and port E is designated for data I/O. Port E pin functions in modes 1, 2, 4, 5, and 6 are shown in figure 8.21. 8-bit bus mode PE7 (I/O) PE6 (I/O) PE5 (I/O) Port E PE4 (I/O) PE3 (I/O) PE2 (I/O) PE1 (I/O) PE0 (I/O) 16-bit bus mode D7 (I/O) D6 (I/O) D5 (I/O) D4 (I/O) D3 (I/O) D2 (I/O) D1 (I/O) D0 (I/O) Figure 8.21 Port E Pin Functions (Modes 1, 2, 4, 5, and 6)* Modes 3 and 7*: In modes 3 and 7*, port E pins function as I/O ports. Input or output can be specified for each pin on a bit-by-bit basis. Setting a PEDDR bit to 1 makes the corresponding port E pin an output port, while clearing the bit to 0 makes the pin an input port. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 263 Port E pin functions in modes 3 and 7 are shown in figure 8.22. PE7 (I/O) PE6 (I/O) PE5 (I/O) Port E PE4 (I/O) PE3 (I/O) PE2 (I/O) PE1 (I/O) PE0 (I/O) Figure 8.22 Port E Pin Functions (Modes 3 and 7)* 8.10.4 MOS Input Pull-Up Function Port E has a built-in MOS input pull-up function that can be controlled by software. This MOS input pull-up function can be used in modes 1, 2, 4, 5, and 6* when 8-bit bus mode is selected, or in mode 3 or 7*, and can be specified as on or off on an individual bit basis. When a PEDDR bit is cleared to 0 in mode 1, 2, 4, 5, or 6* when 8-bit bus mode is selected, or in mode 3 or 7*, setting the corresponding PEPCR bit to 1 turns on the MOS input pull-up for that pin. The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby mode. The prior state is retained after a manual reset, and in software standby mode. Table 8.18 summarizes the MOS input pull-up states. Table 8.18 MOS Input Pull-Up States (Port E) Modes 3, 7* 1, 2, 4 to 6* 8-bit bus 16-bit bus OFF Power-On Hardware Reset Standby Mode OFF Manual Software Reset Standby Mode ON/OFF In Other Operations Legend: OFF : MOS input pull-up is always off. ON/OFF : On when PEDDR = 0 and PEPCR = 1; otherwise off. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 264 8.11 8.11.1 Port F Overview Port F is an 8-bit I/O port. Port F pins also function as bus control signal input/output pins (AS, RD, HWR, LWR, WAIT, BREQ, and BACK), the system clock (o) output pin and interrupt input pins (IRQ0 to IRQ3). The interrupt input pins (IRQ0 to IRQ3) are Schmitt-triggered inputs. Figure 8.23 shows the port F pin configuration. Port F pins PF7 / o PF6 / AS PF5 / RD Port F PF4 / HWR PF3 / LWR/IRQ3 PF2 / WAIT / IRQ2 PF1 / BACK/IRQ1 PF0 / BREQ/IRQ0 Pin functions in modes 1, 2, 4, 5, and 6* PF7 (input)/o(output) AS (output) RD (output) HWR (output) LWR (output) PF2 (I/O)/WAIT (input)/IRQ2 (input) PF1 (I/O)/BACK (output)/IRQ1 (input) PF0 (I/O)/BREQ (input)/IRQ0 (input) Pin functions in modes 3 and 7* PF7 (input)/o (output) PF6 (I/O) PF5 (I/O) PF4 (I/O) PF3 (I/O)/IRQ3 (input) PF2 (I/O)/IRQ2 (input) PF1 (I/O)/IRQ1 (input) PF0 (I/O)/IRQ0 (input) Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. Figure 8.23 Port F Pin Functions 265 8.11.2 Register Configuration Table 8.19 shows the port F register configuration. Table 8.19 Port F Registers Name Port F data direction register Port F data register Port F register Abbreviation PFDDR PFDR PORTF R/W W R/W R Initial Value H'80/H'00*2 H'00 Undefined Address *1 H'FEBE H'FF6E H'FF5E Notes: 1. Lower 16 bits of the address. 2. Initial value depends on the mode. Port F Data Direction Register (PFDDR) Bit : 7 6 5 4 3 2 1 0 PF7DDR PF6DDR PF5DDR PF4DDR PF3DDR PF2DDR PF1DDR PF0DDR Modes 1, 2, 4, 5, 6* Initial value : R/W : Modes 3 and 7* Initial value : R/W : 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W 1 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W PFDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port F. PFDDR cannot be read; if it is, an undefined value will be read. PFDDR is initialized by a power-on reset, and in hardware standby mode, to H'80 in modes 1, 2, 4, 5, and 6*, and to H'00 in modes 3 and 7*. It retains its prior state after a manual reset, and in software standby mode. The OPE bit in SBYCR is used to select whether the bus control output pins retain their output state or become high-impedance when a transition is made to software standby mode. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 266 * Modes 1, 2, 4, 5, and 6* Pin PF7 functions as the o output pin when the corresponding PFDDR bit is set to 1, and as an input port when the bit is cleared to 0. The input/output direction specified by PFDDR is ignored for pins PF6 to PF3, which are automatically designated as bus control outputs (AS, RD, HWR, and LWR). Pins PF2 to PF0 are designated as bus control input/output pins (WAIT, BACK, BREQ) by means of bus controller settings. At other times, setting a PFDDR bit to 1 makes the corresponding port F pin an output port, while clearing the bit to 0 makes the pin an input port. * Modes 3 and 7* Setting a PFDDR bit to 1 makes the corresponding port F pin PF6 to PF0 an output port, or in the case of pin PF 7, the o output pin. Clearing the bit to 0 makes the pin an input port. Port F Data Register (PFDR) Bit : 7 PF7DR Initial value : R/W : 0 R/W 6 PF6DR 0 R/W 5 PF5DR 0 R/W 4 PF4DR 0 R/W 3 PF3DR 0 R/W 2 PF2DR 0 R/W 1 PF1DR 0 R/W 0 PF0DR 0 R/W PFDR is an 8-bit readable/writable register that stores output data for the port F pins (PF7 to PF0). PFDR is initialized to H'00 by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 267 Port F Register (PORTF) Bit : 7 PF7 Initial value : R/W : --* R 6 PF6 --* R 5 PF5 --* R 4 PF4 --* R 3 PF3 --* R 2 PF2 --* R 1 PF1 --* R 0 PF0 --* R Note: * Determined by state of pins PF7 to PF0. PORTF is an 8-bit read-only register that shows the pin states. Writing of output data for the port F pins (PF 7 to PF0) must always be performed on PFDR. If a port F read is performed while PFDDR bits are set to 1, the PFDR values are read. If a port F read is performed while PFDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTF contents are determined by the pin states, as PFDDR and PFDR are initialized. PORTF retains its prior state after a manual reset, and in software standby mode. 268 8.11.3 Pin Functions Port F pins also function as bus control signal input/output pins (AS, RD, HWR, LWR, WAIT, BREQ, and BACK) the system clock (o) output pin and interrupt input pins (IRQ0 to IRQ3). The pin functions differ between modes 1, 2, 4, 5, and 6*, and modes 3 and 7*. Port F pin functions are shown in table 8.20. Table 8.20 Port F Pin Functions Pin PF 7/o Selection Method and Pin Functions The pin function is switched as shown below according to bit PF7DDR. PF7DDR Pin function 0 PF 7 input pin 1 o output pin PF 6/AS The pin function is switched as shown below according to the operating mode and bit PF6DDR. Operating Mode PF6DDR Pin function Modes 1, 2, 4, 5, 6* -- AS output pin 0 PF 6 input pin Modes 3 and 7 * 1 PF 6 output pin Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. PF 5/RD The pin function is switched as shown below according to the operating mode and bit PF5DDR. Operating Mode PF5DDR Pin function Note: * PF 4/HWR Modes 1, 2, 4, 5, 6* -- RD output pin 0 PF 5 input pin Modes 3 and 7 * 1 PF 5 output pin Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. The pin function is switched as shown below according to the operating mode and bit PF4DDR. Operating Mode PF4DDR Pin function Note: * Modes 1, 2, 4, 5, 6* -- HWR output pin 0 PF 4 input pin Modes 3 and 7 * 1 PF 4 output pin Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 269 Table 8.20 Port F Pin Functions (cont) Pin PF 3/LWR/IRQ3 Selection Method and Pin Functions The pin function is switched as shown below according to the operating mode and bit PF3DDR. Operating Mode PF3DDR Pin function Modes 1, 2, 4, 5, 6*1 -- LWR output pin 0 PF 3 input pin Modes 3 and 7 *1 1 PF 3 output pin IRQ3 interrupt input pin*2 Notes: 1. Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 2. When this pin is used as an external interrupt input, the pin function should be set as a port (PF3) input pin. PF 2/WAIT/IRQ2 The pin function is switched as shown below according to the operating mode, and WAITE bit in BCRL, and PF2DDR bit. Operating Mode WAITE PF2DDR Pin function 0 PF 2 input pin Modes 1, 2, 4, 5, 6 *1 0 1 PF 2 output pin 1 -- WAIT input pin 0 PF 2 input pin IRQ2 interrupt input pin*2 Modes 3 and 7 *1 -- 1 PF 2 output pin Notes: 1. Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 2. When this pin is used as an external interrupt input, the pin function should be set as a port (PF2) input pin. PF 1/BACK/IRQ1 The pin function is switched as shown below according to the operating mode, and the BRLE bit in BCRL and PF1DDR bit. Operating Mode BRLE PF1DDR Pin function 0 PF 1 input pin Modes 1, 2, 4, 5, 6 *1 0 1 PF 1 output pin 1 -- BACK output pin 0 PF 1 input pin IRQ1 interrupt input pin*2 Modes 3 and 7 *1 -- 1 PF 1 output pin Notes: 1. Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 2. When this pin is used as an external interrupt input, the pin function should be set as a port (PF1) input pin. 270 Table 8.20 Port F Pin Functions (cont) Pin PF 0/BREQ/IRQ0 Selection Method and Pin Functions The pin function is switched as shown below according to the operating mode, and the BRLE bit in BCRL and PF0DDR bit. Operating Mode BRLE PF0DDR Pin function 0 PF 0 input pin Modes 1, 2, 4, 5, 6 *1 0 1 PF 0 output pin 1 -- BREQ input pin 0 PF 0 input pin IRQ0 interrupt input pin*2 Modes 3 and 7 *1 -- 1 PF 0 output pin Notes: 1. Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 2. When this pin is used as an external interrupt input, the pin function should be set as a port (PF0) input pin. 8.12 8.12.1 Port G Overview Port G is a 5-bit I/O port. Port G pins also function as bus control signal output pins (CS0 to CS3). The A/D converter input pin (ADTRG), and interrupt input pins (IRQ6, IRQ7). The interrupt input pins (IRQ6, IRQ7) are Schmitt-triggered inputs. Figure 8.24 shows the port G pin configuration. 271 Port G pins Pin functions in modes 1 and 2* PG4 / CS0 PG3 / CS1 Port G PG2 / CS2 PG1 / CS3/IRQ7 PG0 / ADTRG/IRQ6 PG4 (input)/ CS0 (output) PG3 (I/O) PG2 (I/O) PG1 (I/O)/ IRQ7 (input) PG0 (I/O)/ ADTRG (input)/ IRQ6 (input) Pin functions in modes 3 and 7* Pin functions in modes 4 to 6* PG4 (I/O) PG3 (I/O) PG2 (I/O) PG1 (I/O)/ IRQ7 (input) PG0 (I/O)/ ADTRG (input)/ IRQ6 (input) PG4 (input)/ CS0 (output) PG3 (input)/ CS1 (output) PG2 (input)/ CS2 (output) PG1 (input)/ CS3 (output)/ IRQ7 (input) PG0 (I/O)/ ADTRG (input)/ IRQ6 (input) Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. Figure 8.24 Port G Pin Functions 8.12.2 Register Configuration Table 8.21 shows the port G register configuration. Table 8.21 Port G Registers Name Port G data direction register Port G data register Port G register Abbreviation PGDDR PGDR PORTG R/W W R/W R Initial Value*1 H'10/H'00*3 H'00 Undefined Address*2 H'FEBF H'FF6F H'FF5F Notes: 1. Value of bits 4 to 0. 2. Lower 16 bits of the address. 3. Initial value depends on the mode. 272 Port G Data Direction Register (PGDDR) Bit : 7 -- Modes 1, 4, 5* Initial value : R/W : Undefined Undefined Undefined -- -- -- 1 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W 6 -- 5 -- 4 3 2 1 0 PG4DDR PG3DDR PG2DDR PG1DDR PG0DDR Modes 2, 3, 6, 7* Initial value : R/W : Undefined Undefined Undefined -- -- -- PGDDR is an 8-bit write-only register, the individual bits of which specify input or output for the pins of port G. PGDDR cannot be read, and bits 7 to 5 are reserved. If PGDDR is read, an undefined value will be read. The PGDDR is initialized by a power-on reset and in hardware standby mode, to H'10 (bits 4 to 0) in modes 1, 4, and 5*, and to H'00 (bits 4 to 0) in modes 2, 3, 6, and 7*. It retains its prior state after a manual reset and in software standby mode. The OPE bit in SBYCR is used to select whether the bus control output pins retain their output state or become high-impedance when a transition is made to software standby mode. * Modes 1 and 2* Pin PG 4 functions as a bus control output pin (CS0) when the corresponding PGDDR bit is set to 1, and as an input port when the bit is cleared to 0. For pins PG3 to PG0, setting the corresponding PGDDR bit to 1 makes the pin an output port, while clearing the bit to 0 makes the pin an input port. * Modes 3 and 7* Setting a PGDDR bit to 1 makes the corresponding port G pin an output port, while clearing the bit to 0 makes the pin an input port. * Modes 4, 5, and 6* Pins PG 4 to PG 1 function as bus control output pins (CS0 to CS3) when the corresponding PGDDR bits are set to 1, and as input ports when the bits are cleared to 0. Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 273 Port G Data Register (PGDR) Bit : 7 -- Initial value : R/W : -- 6 -- -- 5 -- -- 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W PG4DR PG3DR PG2DR PG1DR PG0DR Undefined Undefined Undefined PGDR is an 8-bit readable/writable register that stores output data for the port G pins (PG4 to PG0). Bits 7 to 5 are reserved; they return an undetermined value if read, and cannot be modified. PGDR is initialized to H'00 (bits 4 to 0) by a power-on reset, and in hardware standby mode. It retains its prior state after a manual reset, and in software standby mode. Port G Register (PORTG) Bit : 7 -- Initial value : R/W : -- 6 -- -- 5 -- -- 4 PG4 --* R 3 PG3 --* R 2 PG2 --* R 1 PG1 --* R 0 PG0 --* R Undefined Undefined Undefined Note: * Determined by state of pins PG4 to PG0. PORTG is an 8-bit read-only register that shows the pin states. It cannot be written to. Writing of output data for the port G pins (PG4 to PG 0) must always be performed on PGDR. Bits 7 to 5 are reserved; they return an undetermined value if read, and cannot be modified. If a port G read is performed while PGDDR bits are set to 1, the PGDR values are read. If a port G read is performed while PGDDR bits are cleared to 0, the pin states are read. After a power-on reset and in hardware standby mode, PORTG contents are determined by the pin states, as PGDDR and PGDR are initialized. PORTG retains its prior state after a manual reset, and in software standby mode. 274 8.12.3 Pin Functions Port G pins also function as bus control signal output pins (CS0 to CS3) the A/D converter input pin (ADTRG), and interrupt input pins (IRQ6, IRQ7). The pin functions are different in modes 1 and 2, modes 3 and 7, and modes 4 to 6. Port G pin functions are shown in table 8.22. Table 8.22 Port G Pin Functions Pin PG4/CS0 Selection Method and Pin Functions The pin function is switched as shown below according to the operating mode and bit PG4DDR. Operating Mode PG4DDR Pin function Modes 1, 2, 4, 5, 6 * 0 1 Modes 3 and 7 * 0 1 PG4 input pin CS0 output pin PG4 input pin PG4 output pin Note: * Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. PG3/CS1 The pin function is switched as shown below according to the operating mode and bit PG3DDR. Operating Mode PG3DDR Pin function Note: * PG2/CS2 Modes 1, 2, 3, 7 * 0 1 Modes 4 to 6* 0 1 PG3 input pin PG3 output pin PG3 input pin CS1 output pin Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. The pin function is switched as shown below according to the operating mode and bit PG2DDR. Operating Mode PG2DDR Pin function Note: * Modes 1, 2, 3, 7 * 0 1 Modes 4 to 6* 0 1 PG2 input pin PG2 output pin PG2 input pin CS2 output pin Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 275 Table 8.22 Port G Pin Functions (cont) Pin PG1/CS3/IRQ7 Selection Method and Pin Functions The pin function is switched as shown below according to the combination of operating mode and bit PG1DDR. Operating Mode PG1DDR Pin function Modes 1, 2, 3, 7*1 0 1 Modes 4 to 6*1 0 1 PG1 input pin PG1 output pin PG1 input pin CS3 output pin IRQ7 interrupt input pin*2 Notes: 1. Modes 1 to 3 are not available on the F-ZTAT version. Modes 2, 3, 6, and 7 are not available on the ROMless version. 2. When this pin is used as an external interrupt input, it should not be used as an input/output pin with other functions. PG0/ADTRG/IRQ6 The pin function is switched as shown below according to the combination of bits TRGS1 and TRGS0 (trigger select 1 and 0) in the A/D control register (ADCR). PG0DDR Pin function 0 PG0 input ADTRG input pin* 1 1 PG0 output IRQ6 interrupt input pin*2 Notes: 1. ADTRG input when TRGS1 = TRGS0 = 1. 2. When this pin is used as an external interrupt input, it should not be used as an input/output pin with other functions. 276 Section 9 16-Bit Timer Pulse Unit (TPU) 9.1 Overview The H8S/2345 Series has an on-chip 16-bit timer pulse unit (TPU) that comprises six 16-bit timer channels. 9.1.1 Features * Maximum 16-pulse input/output A total of 16 timer general registers (TGRs) are provided (four each for channels 0 and 3, and two each for channels 1, 2, 4, and 5), each of which can be set independently as an output compare/input capture register TGRC and TGRD for channels 0 and 3 can also be used as buffer registers * Selection of 8 counter input clocks for each channel * The following operations can be set for each channel: Waveform output at compare match: Selection of 0, 1, or toggle output Input capture function: Selection of rising edge, falling edge, or both edge detection Counter clear operation: Counter clearing possible by compare match or input capture Synchronous operation: Multiple timer counters (TCNT) can be written to simultaneously Simultaneous clearing by compare match and input capture possible Register simultaneous input/output possible by counter synchronous operation PWM mode: Any PWM output duty can be set Maximum of 15-phase PWM output possible by combination with synchronous operation * Buffer operation settable for channels 0 and 3 Input capture register double-buffering possible Automatic rewriting of output compare register possible * Phase counting mode settable independently for each of channels 1, 2, 4, and 5 Two-phase encoder pulse up/down-count possible * Cascaded operation Channel 2 (channel 5) input clock operates as 32-bit counter by setting channel 1 (channel 4) overflow/underflow * Fast access via internal 16-bit bus Fast access is possible via a 16-bit bus interface 277 * 26 interrupt sources For channels 0 and 3, four compare match/input capture dual-function interrupts and one overflow interrupt can be requested independently For channels 1, 2, 4, and 5, two compare match/input capture dual-function interrupts, one overflow interrupt, and one underflow interrupt can be requested independently * Automatic transfer of register data Block transfer, 1-word data transfer, and 1-byte data transfer possible by data transfer controller (DTC) activation * A/D converter conversion start trigger can be generated Channel 0 to 5 compare match A/input capture A signals can be used as A/D converter conversion start trigger * Module stop mode can be set As the initial setting, TPU operation is halted. Register access is enabled by exiting module stop mode. Table 9.1 lists the functions of the TPU. 278 Table 9.1 Item Count clock TPU Functions Channel 0 Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 o/1 o/4 o/16 o/64 TCLKA TCLKB TCLKC TCLKD TGR0A TGR0B TGR0C TGR0D TIOCA0 TIOCB0 TIOCC0 TIOCD0 TGR compare match or input capture o/1 o/4 o/16 o/64 o/256 TCLKA TCLKB TGR1A TGR1B -- TIOCA1 TIOCB1 o/1 o/4 o/16 o/64 o/1024 TCLKA TCLKB TCLKC TGR2A TGR2B -- TIOCA2 TIOCB2 o/1 o/4 o/16 o/64 o/256 o/1024 o/4096 TCLKA TGR3A TGR3B TGR3C TGR3D TIOCA3 TIOCB3 TIOCC3 TIOCD3 TGR compare match or input capture o/1 o/4 o/16 o/64 o/1024 TCLKA TCLKC TGR4A TGR4B -- TIOCA4 TIOCB4 o/1 o/4 o/16 o/64 o/256 TCLKA TCLKC TCLKD TGR5A TGR5B -- TIOCA5 TIOCB5 General registers General registers/ buffer registers I/O pins Counter clear function TGR compare match or input capture TGR compare match or input capture TGR compare match or input capture TGR compare match or input capture Compare 0 output match 1 output output Toggle output Input capture function Synchronous operation PWM mode Phase counting mode Buffer operation DTC activation TGR compare match or input capture -- -- TGR compare match or input capture -- TGR compare match or input capture TGR compare match or input capture -- -- TGR compare match or input capture -- TGR compare match or input capture 279 Table 9.1 Item TPU Functions (cont) Channel 0 Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 TGR0A compare match or input capture 5 sources TGR1A compare match or input capture 4 sources TGR2A compare match or input capture 4 sources TGR3A compare match or input capture 5 sources TGR4A compare match or input capture 4 sources TGR5A compare match or input capture 4 sources * Compare match or input capture 5A * Compare match or input capture 5B * Overflow * Underflow A/D converter trigger Interrupt sources * Compare * Compare * Compare * Compare * Compare match or match or match or match or match or input cap- input cap- input cap- input cap- input capture 0A ture 4A ture 3A ture 2A ture 1A * Compare * Compare * Compare * Compare * Compare match or match or match or match or match or input cap- input cap- input cap- input cap- input capture 0B ture 4B ture 3B ture 2B ture 1B * Compare * Overflow * Overflow * Compare * Overflow match or * Underflow * Underflow match or * Underflow input capinput capture 0C ture 3C * Compare * Compare match or match or input capinput capture 0D ture 3D * Overflow Legend --: Not possible : Possible * Overflow 280 9.1.2 Block Diagram Figure 9.1 shows a block diagram of the TPU. TIORH TIORL TMDR Channel 3 TSR TGRC TGRD TGRA TGRB TCNT Channel 3: Control logic for channels 3 to 5 TIOR Channel 5: TMDR Channel 5 TSR TIER TCR Channel 4: Input pins TIOCA3 TIOCB3 TIOCC3 TIOCD3 TIOCA4 TIOCB4 TIOCA5 TIOCB5 TGRA TIOR TMDR Channel 2 TSR Clock input Internal clock: o/1 o/4 o/16 o/64 o/256 o/1024 o/4096 External clock: TCLKA TCLKB TCLKC TCLKD TIER TCR Module data bus TSTR TSYR Bus interface TGRB TCNT Interrupt request signals Channel 3: TGI3A TGI3B TGI3C TGI3D TCI3V Channel 4: TGI4A TGI4B TCI4V TCI4U Channel 5: TGI5A TGI5B TCI5V TCI5U TMDR Channel 4 TSR TIER TCR TGRA TGRB TCNT Common Control logic Internal data bus A/D conversion start request signal TGRA TIOR TIER TCR TGRB TCNT Channel 0: Control logic for channels 0 to 2 Channel 2: TCR Channel 1: TIORH TIORL TMDR Input pins TIOCA0 TIOCB0 TIOCC0 TIOCD0 TIOCA1 TIOCB1 TIOCA2 TIOCB2 Interrupt request signals Channel 0: TGI0A TGI0B TGI0C TGI0D TCI0V Channel 1: TGI1A TGI1B TCI1V TCI1U Channel 2: TGI2A TGI2B TCI2V TCI2U TMDR Channel 1 TSR TGRA TIOR Channel 0 TSR TIER TGRB TGRC TGRD TGRB TCNT TCNT Figure 9.1 Block Diagram of TPU TIER TCR TGRA 281 9.1.3 Pin Configuration Table 9.2 summarizes the TPU pins. Table 9.2 Channel All TPU Pins Name Clock input A Symbol TCLKA I/O Input Function External clock A input pin (Channel 1 and 5 phase counting mode A phase input) External clock B input pin (Channel 1 and 5 phase counting mode B phase input) External clock C input pin (Channel 2 and 4 phase counting mode A phase input) External clock D input pin (Channel 2 and 4 phase counting mode B phase input) TGR0A input capture input/output compare output/PWM output pin TGR0B input capture input/output compare output/PWM output pin TGR0C input capture input/output compare output/PWM output pin TGR0D input capture input/output compare output/PWM output pin TGR1A input capture input/output compare output/PWM output pin TGR1B input capture input/output compare output/PWM output pin TGR2A input capture input/output compare output/PWM output pin TGR2B input capture input/output compare output/PWM output pin Clock input B TCLKB Input Clock input C TCLKC Input Clock input D TCLKD Input 0 Input capture/out TIOCA0 compare match A0 Input capture/out TIOCB0 compare match B0 Input capture/out TIOCC0 compare match C0 Input capture/out TIOCD0 compare match D0 I/O I/O I/O I/O I/O I/O I/O I/O 1 Input capture/out TIOCA1 compare match A1 Input capture/out TIOCB1 compare match B1 2 Input capture/out TIOCA2 compare match A2 Input capture/out TIOCB2 compare match B2 282 Table 9.2 Channel 3 TPU Pins (cont) Name Symbol I/O I/O I/O I/O I/O I/O I/O I/O I/O Function TGR3A input capture input/output compare output/PWM output pin TGR3B input capture input/output compare output/PWM output pin TGR3C input capture input/output compare output/PWM output pin TGR3D input capture input/output compare output/PWM output pin TGR4A input capture input/output compare output/PWM output pin TGR4B input capture input/output compare output/PWM output pin TGR5A input capture input/output compare output/PWM output pin TGR5B input capture input/output compare output/PWM output pin Input capture/out TIOCA3 compare match A3 Input capture/out TIOCB3 compare match B3 Input capture/out TIOCC3 compare match C3 Input capture/out TIOCD3 compare match D3 4 Input capture/out TIOCA4 compare match A4 Input capture/out TIOCB4 compare match B4 5 Input capture/out TIOCA5 compare match A5 Input capture/out TIOCB5 compare match B5 283 9.1.4 Register Configuration Table 9.3 summarizes the TPU registers. Table 9.3 TPU Registers Abbreviation TCR0 TMDR0 TIOR0H TIOR0L R/W R/W R/W R/W R/W R/W R/(W)* R/W R/W R/W R/W R/W R/W R/W R/W R/W 2 2 Channel Name 0 Timer control register 0 Timer mode register 0 Timer I/O control register 0H Timer I/O control register 0L Initial Value H'00 H'C0 H'00 H'00 H'40 H'C0 H'0000 H'FFFF H'FFFF H'FFFF H'FFFF H'00 H'C0 H'00 H'40 Address *1 H'FFD0 H'FFD1 H'FFD2 H'FFD3 H'FFD4 H'FFD5 H'FFD6 H'FFD8 H'FFDA H'FFDC H'FFDE H'FFE0 H'FFE1 H'FFE2 H'FFE4 H'FFE5 H'FFE6 H'FFE8 H'FFEA H'FFF0 H'FFF1 H'FFF2 H'FFF4 H'FFF5 H'FFF6 H'FFF8 H'FFFA Timer interrupt enable register 0 TIER0 Timer status register 0 Timer counter 0 Timer general register 0A Timer general register 0B Timer general register 0C Timer general register 0D 1 Timer control register 1 Timer mode register 1 Timer I/O control register 1 TSR0 TCNT0 TGR0A TGR0B TGR0C TGR0D TCR1 TMDR1 TIOR1 Timer interrupt enable register 1 TIER1 Timer status register 1 Timer counter 1 Timer general register 1A Timer general register 1B 2 Timer control register 2 Timer mode register 2 Timer I/O control register 2 TSR1 TCNT1 TGR1A TGR1B TCR2 TMDR2 TIOR2 R/(W) * H'C0 R/W R/W R/W R/W R/W R/W R/W 2 H'0000 H'FFFF H'FFFF H'00 H'C0 H'00 H'40 Timer interrupt enable register 2 TIER2 Timer status register 2 Timer counter 2 Timer general register 2A Timer general register 2B TSR2 TCNT2 TGR2A TGR2B R/(W) * H'C0 R/W R/W R/W H'0000 H'FFFF H'FFFF 284 Table 9.3 TPU Registers (cont) Abbreviation TCR3 TMDR3 TIOR3H TIOR3L R/W R/W R/W R/W R/W R/W R/(W)* R/W R/W R/W R/W R/W R/W R/W R/W R/W 2 2 Channel Name 3 Timer control register 3 Timer mode register 3 Timer I/O control register 3H Timer I/O control register 3L Initial Value H'00 H'C0 H'00 H'00 H'40 H'C0 H'0000 H'FFFF H'FFFF H'FFFF H'FFFF H'00 H'C0 H'00 H'40 Address*1 H'FE80 H'FE81 H'FE82 H'FE83 H'FE84 H'FE85 H'FE86 H'FE88 H'FE8A H'FE8C H'FE8E H'FE90 H'FE91 H'FE92 H'FE94 H'FE95 H'FE96 H'FE98 H'FE9A H'FEA0 H'FEA1 H'FEA2 H'FEA4 H'FEA5 H'FEA6 H'FEA8 H'FEAA H'FFC0 H'FFC1 H'FF3C Timer interrupt enable register 3 TIER3 Timer status register 3 Timer counter 3 Timer general register 3A Timer general register 3B Timer general register 3C Timer general register 3D 4 Timer control register 4 Timer mode register 4 Timer I/O control register 4 TSR3 TCNT3 TGR3A TGR3B TGR3C TGR3D TCR4 TMDR4 TIOR4 Timer interrupt enable register 4 TIER4 Timer status register 4 Timer counter 4 Timer general register 4A Timer general register 4B 5 Timer control register 5 Timer mode register 5 Timer I/O control register 5 TSR4 TCNT4 TGR4A TGR4B TCR5 TMDR5 TIOR5 R/(W) * H'C0 R/W R/W R/W R/W R/W R/W R/W 2 H'0000 H'FFFF H'FFFF H'00 H'C0 H'00 H'40 Timer interrupt enable register 5 TIER5 Timer status register 5 Timer counter 5 Timer general register 5A Timer general register 5B All Timer start register Timer synchro register Module stop control register TSR5 TCNT5 TGR5A TGR5B TSTR TSYR MSTPCR R/(W) * H'C0 R/W R/W R/W R/W R/W R/W H'0000 H'FFFF H'FFFF H'00 H'00 H'3FFF Notes: 1. Lower 16 bits of the address. 2. Can only be written with 0 for flag clearing. 285 9.2 9.2.1 Register Descriptions Timer Control Register (TCR) Channel 0: TCR0 Channel 3: TCR3 Bit : 7 CCLR2 0 R/W 6 CCLR1 0 R/W 5 CCLR0 0 R/W 4 0 R/W 3 0 R/W 2 TPSC2 0 R/W 1 TPSC1 0 R/W 0 TPSC0 0 R/W CKEG1 CKEG0 Initial value : R/W : Channel 1: TCR1 Channel 2: TCR2 Channel 4: TCR4 Channel 5: TCR5 Bit : 7 -- 0 -- 6 CCLR1 0 R/W 5 CCLR0 0 R/W 4 0 R/W 3 0 R/W 2 TPSC2 0 R/W 1 TPSC1 0 R/W 0 TPSC0 0 R/W CKEG1 CKEG0 Initial value : R/W : The TCR registers are 8-bit registers that control the TCNT channels. The TPU has six TCR registers, one for each of channels 0 to 5. The TCR registers are initialized to H'00 by a reset, and in hardware standby mode. Note: Make TCR settings only when TCNT operation is stopped. 286 Bits 7, 6, 5--Counter Clear 2, 1, and 0 (CCLR2, CCLR1, CCLR0): These bits select the TCNT counter clearing source. Bit 7 Channel 0, 3 CCLR2 0 Bit 6 CCLR1 0 Bit 5 CCLR0 0 1 1 0 1 Description TCNT clearing disabled (Initial value) TCNT cleared by TGRA compare match/input capture TCNT cleared by TGRB compare match/input capture TCNT cleared by counter clearing for another channel performing synchronous clearing/ synchronous operation *1 TCNT clearing disabled TCNT cleared by TGRC compare match/input capture *2 TCNT cleared by TGRD compare match/input capture *2 TCNT cleared by counter clearing for another channel performing synchronous clearing/ synchronous operation *1 1 0 0 1 1 0 1 Bit 7 Channel 1, 2, 4, 5 3 Bit 6 Bit 5 CCLR0 0 1 Description TCNT clearing disabled (Initial value) Reserved* CCLR1 0 0 TCNT cleared by TGRA compare match/input capture TCNT cleared by TGRB compare match/input capture TCNT cleared by counter clearing for another channel performing synchronous clearing/ synchronous operation *1 1 0 1 Notes: 1. Synchronous operation setting is performed by setting the SYNC bit in TSYR to 1. 2. When TGRC or TGRD is used as a buffer register, TCNT is not cleared because the buffer register setting has priority, and compare match/input capture does not occur. 3. Bit 7 is reserved in channels 1, 2, 4, and 5. It is always read as 0 and cannot be modified. 287 Bits 4 and 3--Clock Edge 1 and 0 (CKEG1, CKEG0): These bits select the input clock edge. When the input clock is counted using both edges, the input clock period is halved (e.g. o/4 both edges = o/2 rising edge). If phase counting mode is used on channels 1, 2, 4, and 5, this setting is ignored and the phase counting mode setting has priority. Bit 4 CKEG1 0 Bit 3 CKEG0 0 1 1 -- Description Count at rising edge Count at falling edge Count at both edges (Initial value) Note: Internal clock edge selection is valid when the input clock is o/4 or slower. This setting is ignored if the input clock is o/1, or when overflow/underflow of another channel is selected. Bits 2, 1, and 0--Time Prescaler 2, 1, and 0 (TPSC2 to TPSC0): These bits select the TCNT counter clock. The clock source can be selected independently for each channel. Table 9.4 shows the clock sources that can be set for each channel. Table 9.4 TPU Clock Sources Overflow/ Underflow External Clock on Another TCLKA TCLKB TCLKC TCLKD Channel Internal Clock Channel 0 1 2 3 4 5 o/1 o/4 o/16 o/64 o/256 o/1024 o/4096 Legend : Setting Blank : No setting 288 Bit 2 Channel 0 TPSC2 0 Bit 1 TPSC1 0 Bit 0 TPSC0 0 1 Description Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKB pin input External clock: counts on TCLKC pin input External clock: counts on TCLKD pin input (Initial value) 1 0 1 1 0 0 1 1 0 1 Bit 2 Channel 1 TPSC2 0 Bit 1 TPSC1 0 Bit 0 TPSC0 0 1 Description Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKB pin input Internal clock: counts on o/256 Counts on TCNT2 overflow/underflow (Initial value) 1 0 1 1 0 0 1 1 0 1 Note: This setting is ignored when channel 1 is in phase counting mode. Bit 2 Channel 2 TPSC2 0 Bit 1 TPSC1 0 Bit 0 TPSC0 0 1 1 0 1 1 0 0 1 1 0 1 Description Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKB pin input External clock: counts on TCLKC pin input Internal clock: counts on o/1024 (Initial value) Note: This setting is ignored when channel 2 is in phase counting mode. 289 Bit 2 Channel 3 TPSC2 0 Bit 1 TPSC1 0 Bit 0 TPSC0 0 1 Description Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input Internal clock: counts on o/1024 Internal clock: counts on o/256 Internal clock: counts on o/4096 (Initial value) 1 0 1 1 0 0 1 1 0 1 Bit 2 Channel 4 TPSC2 0 Bit 1 TPSC1 0 Bit 0 TPSC0 0 1 Description Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKC pin input Internal clock: counts on o/1024 Counts on TCNT5 overflow/underflow (Initial value) 1 0 1 1 0 0 1 1 0 1 Note: This setting is ignored when channel 4 is in phase counting mode. Bit 2 Channel 5 TPSC2 0 Bit 1 TPSC1 0 Bit 0 TPSC0 0 1 1 0 1 1 0 0 1 1 0 1 Description Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKC pin input Internal clock: counts on o/256 External clock: counts on TCLKD pin input (Initial value) Note: This setting is ignored when channel 5 is in phase counting mode. 290 9.2.2 Timer Mode Register (TMDR) Channel 0: TMDR0 Channel 3: TMDR3 Bit : 7 -- 1 -- 6 -- 1 -- 5 BFB 0 R/W 4 BFA 0 R/W 3 MD3 0 R/W 2 MD2 0 R/W 1 MD1 0 R/W 0 MD0 0 R/W Initial value : R/W : Channel 1: TMDR1 Channel 2: TMDR2 Channel 4: TMDR4 Channel 5: TMDR5 Bit : 7 -- 1 -- 6 -- 1 -- 5 -- 0 -- 4 -- 0 -- 3 MD3 0 R/W 2 MD2 0 R/W 1 MD1 0 R/W 0 MD0 0 R/W Initial value : R/W : The TMDR registers are 8-bit readable/writable registers that are used to set the operating mode for each channel. The TPU has six TMDR registers, one for each channel. The TMDR registers are initialized to H'C0 by a reset, and in hardware standby mode. Note: Make TMDR settings only when TCNT operation is stopped. Bits 7 and 6--Reserved: Read-only bits, always read as 1. Bit 5--Buffer Operation B (BFB): Specifies whether TGRB is to operate in the normal way, or TGRB and TGRD are to be used together for buffer operation. When TGRD is used as a buffer register, TGRD input capture/output compare is not generated. In channels 1, 2, 4, and 5, which have no TGRD, bit 5 is reserved. It is always read as 0 and cannot be modified. 291 Bit 5 BFB 0 1 Description TGRB operates normally TGRB and TGRD used together for buffer operation (Initial value) Bit 4--Buffer Operation A (BFA): Specifies whether TGRA is to operate in the normal way, or TGRA and TGRC are to be used together for buffer operation. When TGRC is used as a buffer register, TGRC input capture/output compare is not generated. In channels 1, 2, 4, and 5, which have no TGRC, bit 4 is reserved. It is always read as 0 and cannot be modified. Bit 4 BFA 0 1 Description TGRA operates normally TGRA and TGRC used together for buffer operation (Initial value) Bits 3 to 0--Modes 3 to 0 (MD3 to MD0): These bits are used to set the timer operating mode. Bit 3 MD3* 0 1 Bit 2 MD2* 0 2 Bit 1 MD1 0 Bit 0 MD0 0 1 Description Normal operation Reserved PWM mode 1 PWM mode 2 Phase counting mode 1 Phase counting mode 2 Phase counting mode 3 Phase counting mode 4 -- (Initial value) 1 0 1 1 0 0 1 1 0 1 1 * * * *: Don't care Notes: 1. MD3 is a reserved bit. In a write, it should always be written with 0. 2. Phase counting mode cannot be set for channels 0 and 3. In this case, 0 should always be written to MD2. 292 9.2.3 Timer I/O Control Register (TIOR) Channel 0: TIOR0H Channel 1: TIOR1 Channel 2: TIOR2 Channel 3: TIOR3H Channel 4: TIOR4 Channel 5: TIOR5 Bit : 7 IOB3 0 R/W 6 IOB2 0 R/W 5 IOB1 0 R/W 4 IOB0 0 R/W 3 IOA3 0 R/W 2 IOA2 0 R/W 1 IOA1 0 R/W 0 IOA0 0 R/W Initial value : R/W : Channel 0: TIOR0L Channel 3: TIOR3L Bit : 7 IOD3 0 R/W 6 IOD2 0 R/W 5 IOD1 0 R/W 4 IOD0 0 R/W 3 IOC3 0 R/W 2 IOC2 0 R/W 1 IOC1 0 R/W 0 IOC0 0 R/W Initial value : R/W : Note: When TGRC or TGRD is designated for buffer operation, this setting is invalid and the register operates as a buffer register. The TIOR registers are 8-bit registers that control the TGR registers. The TPU has eight TIOR registers, two each for channels 0 and 3, and one each for channels 1, 2, 4, and 5. The TIOR registers are initialized to H'00 by a reset, and in hardware standby mode. Care is required since TIOR is affected by the TMDR setting. The initial output specified by TIOR is valid when the counter is stopped (the CST bit in TSTR is cleared to 0). Note also that, in PWM mode 2, the output at the point at which the counter is cleared to 0 is specified. Bits 7 to 4-- I/O Control B3 to B0 (IOB3 to IOB0) I/O Control D3 to D0 (IOD3 to IOD0): Bits IOB3 to IOB0 specify the function of TGRB. Bits IOD3 to IOD0 specify the function of TGRD. * TIOR0H 293 Bit 7 Bit 6 Bit 5 Bit 4 Channel 0 IOB3 IOB2 IOB1 IOB0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR0B is Capture input input source is capture TIOCB0 pin register Capture input source is channel 1/count clock Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at TCNT1 count- up/count-down*1 TGR0B is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Note: *: Don't care 1. When bits TPSC2 to TPSC0 in TCR1 are set to B'000 and o/1 is used as the TCNT1 count clock, this setting is invalid and input capture is not generated. 294 * TIOR0L Bit 7 Bit 6 Bit 5 Bit 4 Channel 0 IOD3 IOD2 IOD1 IOD0 Description 0 0 0 1 0 1 0 1 1 0 1 0 1 0 1 1 0 0 1 1 * 0 1 * * TGR0D is Capture input input source is capture TIOCD0 pin register*2 Capture input source is channel 1/count clock Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at TCNT1 count-up/count-down*1 TGR0D is Output disabled output Initial output is 0 compare output register*2 (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match *: Don't care Notes: 1. When bits TPSC2 to TPSC0 in TCR1 are set to B'000 and o/1 is used as the TCNT1 count clock, this setting is invalid and input capture is not generated. 2. When the BFB bit in TMDR0 is set to 1 and TGR0D is used as a buffer register, this setting is invalid and input capture/output compare is not generated. 295 * TIOR1 Bit 7 Bit 6 Bit 5 Bit 4 Channel 1 IOB3 IOB2 IOB1 IOB0 Description 0 0 0 1 0 1 0 1 1 0 1 0 1 0 1 1 0 0 1 1 * 0 1 * * TGR1B is Capture input input source is capture TIOCB1 pin register Capture input source is TGR0C compare match/ input capture Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at generation of TGR0C compare match/input capture *: Don't care TGR1B is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match 296 * TIOR2 Bit 7 Bit 6 Bit 5 Bit 4 Channel 2 IOB3 IOB2 IOB1 IOB0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * 0 0 1 1 * TGR2B is Capture input input source is capture TIOCB2 pin register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care TGR2B is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match 297 * TIOR3H Bit 7 Bit 6 Bit 5 Bit 4 Channel 3 IOB3 IOB2 IOB1 IOB0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR3B is Capture input input source is capture TIOCB3 pin register Capture input source is channel 4/count clock Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at TCNT4 count-up/count-down*1 TGR3B is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Note: *: Don't care 1. When bits TPSC2 to TPSC0 in TCR4 are set to B'000 and o/1 is used as the TCNT4 count clock, this setting is invalid and input capture is not generated. 298 * TIOR3L Bit 7 Bit 6 Bit 5 Bit 4 Channel 3 IOD3 IOD2 IOD1 IOD0 Description 0 0 0 1 0 1 0 1 1 0 1 0 1 0 1 1 0 0 1 1 * 0 1 * * TGR3D is Capture input input source is capture TIOCD3 pin register*2 Capture input source is channel 4/count clock Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at TCNT4 count-up/count-down*1 TGR3D is Output disabled output Initial output is 0 compare output register*2 (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match *: Don't care Notes: 1. When bits TPSC2 to TPSC0 in TCR4 are set to B'000 and o/1 is used as the TCNT4 count clock, this setting is invalid and input capture is not generated. 2. When the BFB bit in TMDR3 is set to 1 and TGR3D is used as a buffer register, this setting is invalid and input capture/output compare is not generated. 299 * TIOR4 Bit 7 Bit 6 Bit 5 Bit 4 Channel 4 IOB3 IOB2 IOB1 IOB0 Description 0 0 0 1 0 1 0 1 1 0 1 0 1 0 1 1 0 0 1 1 * 0 1 * * TGR4B is Capture input input source is capture TIOCB4 pin register Capture input source is TGR3C compare match/ input capture Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at generation of TGR3C compare match/ input capture *: Don't care TGR4B is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match 300 * TIOR5 Bit 7 Bit 6 Bit 5 Bit 4 Channel 5 IOB3 IOB2 IOB1 IOB0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * 0 0 1 1 * TGR5B is Capture input input source is capture TIOCB5 pin register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care TGR5B is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match 301 Bits 3 to 0-- I/O Control A3 to A0 (IOA3 to IOA0) I/O Control C3 to C0 (IOC3 to IOC0): IOA3 to IOA0 specify the function of TGRA. IOC3 to IOC0 specify the function of TGRC. * TIOR0H Bit 3 Bit 2 Bit 1 Bit 0 Channel 0 IOA3 IOA2 IOA1 IOA0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR0A is Capture input input source is capture TIOCA0 pin register Capture input source is channel 1/ count clock Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at TCNT1 count-up/count-down *: Don't care TGR0A is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match 302 * TIOR0L Bit 3 Bit 2 Bit 1 Bit 0 Channel 0 IOC3 IOC2 IOC1 IOC0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR0C is Capture input input source is capture TIOCC0 pin register*1 Capture input source is channel 1/count clock Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at TCNT1 count-up/count-down TGR0C is Output disabled output Initial output is 0 compare output register*1 (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Note: *: Don't care 1. When the BFA bit in TMDR0 is set to 1 and TGR0C is used as a buffer register, this setting is invalid and input capture/output compare is not generated. 303 * TIOR1 Bit 3 Bit 2 Bit 1 Bit 0 Channel 1 IOA3 IOA2 IOA1 IOA0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR1A is Capture input input source is capture TIOCA1 pin register Capture input source is TGR0A compare match/ input capture Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at generation of channel 0/TGR0A compare match/input capture *: Don't care TGR1A is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match 304 * TIOR2 Bit 3 Bit 2 Bit 1 Bit 0 Channel 2 IOA3 IOA2 IOA1 IOA0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * 0 0 1 1 * TGR2A is Capture input input source is capture TIOCA2 pin register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care TGR2A is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match 305 * TIOR3H Bit 3 Bit 2 Bit 1 Bit 0 Channel 3 IOA3 IOA2 IOA1 IOA0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR3A is Capture input input source is capture TIOCA3 pin register Capture input source is channel 4/count clock Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at TCNT4 count-up/count-down *: Don't care TGR3A is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match 306 * TIOR3L Bit 3 Bit 2 Bit 1 Bit 0 Channel 3 IOC3 IOC2 IOC1 IOC0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR3C is Capture input input source is capture TIOCC3 pin register*1 Capture input source is channel 4/count clock Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at TCNT4 count-up/count-down TGR3C is Output disabled output Initial output is 0 compare output register*1 (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match Note: *: Don't care 1. When the BFA bit in TMDR3 is set to 1 and TGR3C is used as a buffer register, this setting is invalid and input capture/output compare is not generated. 307 * TIOR4 Bit 3 Bit 2 Bit 1 Bit 0 Channel 4 IOA3 IOA2 IOA1 IOA0 Description 0 0 0 1 0 1 0 1 1 0 1 0 1 0 1 1 0 0 1 1 * 0 1 * * TGR4A is Capture input input source is capture TIOCA4 pin register Capture input source is TGR3A compare match/ input capture Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at generation of TGR3A compare match/input capture *: Don't care TGR4A is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match 308 * TIOR5 Bit 3 Bit 2 Bit 1 Bit 0 Channel 5 IOA3 IOA2 IOA1 IOA0 Description 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * 0 0 1 1 * TGR5A is Capture input input source is capture TIOCA5 pin register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges *: Don't care TGR5A is Output disabled output Initial output is 0 compare output register (Initial value) 0 output at compare match 1 output at compare match Toggle output at compare match 309 9.2.4 Timer Interrupt Enable Register (TIER) Channel 0: TIER0 Channel 3: TIER3 Bit : 7 TTGE 0 R/W 6 -- 1 -- 5 -- 0 -- 4 TCIEV 0 R/W 3 TGIED 0 R/W 2 TGIEC 0 R/W 1 TGIEB 0 R/W 0 TGIEA 0 R/W Initial value : R/W : Channel 1: TIER1 Channel 2: TIER2 Channel 4: TIER4 Channel 5: TIER5 Bit : 7 TTGE 0 R/W 6 -- 1 -- 5 TCIEU 0 R/W 4 TCIEV 0 R/W 3 -- 0 -- 2 -- 0 -- 1 TGIEB 0 R/W 0 TGIEA 0 R/W Initial value : R/W : The TIER registers are 8-bit registers that control enabling or disabling of interrupt requests for each channel. The TPU has six TIER registers, one for each channel. The TIER registers are initialized to H'40 by a reset, and in hardware standby mode. 310 Bit 7--A/D Conversion Start Request Enable (TTGE): Enables or disables generation of A/D conversion start requests by TGRA input capture/compare match. Bit 7 TTGE 0 1 Description A/D conversion start request generation disabled A/D conversion start request generation enabled (Initial value) Bit 6--Reserved: Read-only bit, always read as 1. Bit 5--Underflow Interrupt Enable (TCIEU): Enables or disables interrupt requests (TCIU) by the TCFU flag when the TCFU flag in TSR is set to 1 in channels 1 and 2. In channels 0 and 3, bit 5 is reserved. It is always read as 0 and cannot be modified. Bit 5 TCIEU 0 1 Description Interrupt requests (TCIU) by TCFU disabled Interrupt requests (TCIU) by TCFU enabled (Initial value) Bit 4--Overflow Interrupt Enable (TCIEV): Enables or disables interrupt requests (TCIV) by the TCFV flag when the TCFV flag in TSR is set to 1. Bit 4 TCIEV 0 1 Description Interrupt requests (TCIV) by TCFV disabled Interrupt requests (TCIV) by TCFV enabled (Initial value) Bit 3--TGR Interrupt Enable D (TGIED): Enables or disables interrupt requests (TGID) by the TGFD bit when the TGFD bit in TSR is set to 1 in channels 0 and 3. In channels 1, 2, 4, and 5, bit 3 is reserved. It is always read as 0 and cannot be modified. Bit 3 TGIED 0 1 Description Interrupt requests (TGID) by TGFD bit disabled Interrupt requests (TGID) by TGFD bit enabled (Initial value) 311 Bit 2--TGR Interrupt Enable C (TGIEC): Enables or disables interrupt requests (TGIC) by the TGFC bit when the TGFC bit in TSR is set to 1 in channels 0 and 3. In channels 1, 2, 4, and 5, bit 2 is reserved. It is always read as 0 and cannot be modified. Bit 2 TGIEC 0 1 Description Interrupt requests (TGIC) by TGFC bit disabled Interrupt requests (TGIC) by TGFC bit enabled (Initial value) Bit 1--TGR Interrupt Enable B (TGIEB): Enables or disables interrupt requests (TGIB) by the TGFB bit when the TGFB bit in TSR is set to 1. Bit 1 TGIEB 0 1 Description Interrupt requests (TGIB) by TGFB bit disabled Interrupt requests (TGIB) by TGFB bit enabled (Initial value) Bit 0--TGR Interrupt Enable A (TGIEA): Enables or disables interrupt requests (TGIA) by the TGFA bit when the TGFA bit in TSR is set to 1. Bit 0 TGIEA 0 1 Description Interrupt requests (TGIA) by TGFA bit disabled Interrupt requests (TGIA) by TGFA bit enabled (Initial value) 312 9.2.5 Timer Status Register (TSR) Channel 0: TSR0 Channel 3: TSR3 Bit : 7 -- 1 -- 6 -- 1 -- 5 -- 0 -- 4 TCFV 0 R/(W)* 3 TGFD 0 R/(W)* 2 TGFC 0 R/(W)* 1 TGFB 0 R/(W)* 0 TGFA 0 R/(W)* Initial value : R/W : Note: * Can only be written with 0 for flag clearing. Channel 1: TSR1 Channel 2: TSR2 Channel 4: TSR4 Channel 5: TSR5 Bit : 7 TCFD 1 R 6 -- 1 -- 5 TCFU 0 R/(W)* 4 TCFV 0 R/(W)* 3 -- 0 -- 2 -- 0 -- 1 TGFB 0 R/(W)* 0 TGFA 0 R/(W)* Initial value : R/W : Note: * Can only be written with 0 for flag clearing. The TSR registers are 8-bit registers that indicate the status of each channel. The TPU has six TSR registers, one for each channel. The TSR registers are initialized to H'C0 by a reset, and in hardware standby mode. Bit 7--Count Direction Flag (TCFD): Status flag that shows the direction in which TCNT counts in channels 1, 2, 4, and 5. In channels 0 and 3, bit 7 is reserved. It is always read as 1 and cannot be modified. Bit 7 TCFD 0 1 Description TCNT counts down TCNT counts up (Initial value) Bit 6--Reserved: Read-only bit, always read as 1. 313 Bit 5--Underflow Flag (TCFU): Status flag that indicates that TCNT underflow has occurred when channels 1, 2, 4, and 5 are set to phase counting mode. In channels 0 and 3, bit 5 is reserved. It is always read as 0 and cannot be modified. Bit 5 TCFU 0 1 Description [Clearing condition] When 0 is written to TCFU after reading TCFU = 1 [Setting condition] When the TCNT value underflows (changes from H'0000 to H'FFFF) (Initial value) Bit 4--Overflow Flag (TCFV): Status flag that indicates that TCNT overflow has occurred. Bit 4 TCFV 0 Description [Clearing condition] When 0 is written to TCFV after reading TCFV = 1 1 [Setting condition] When the TCNT value overflows (changes from H'FFFF to H'0000 ) (Initial value) Bit 3--Input Capture/Output Compare Flag D (TGFD): Status flag that indicates the occurrence of TGRD input capture or compare match in channels 0 and 3. In channels 1, 2, 4, and 5, bit 3 is reserved. It is always read as 0 and cannot be modified. Bit 3 TGFD 0 Description [Clearing conditions] * * 1 * * (Initial value) When DTC is activated by TGID interrupt while DISEL bit of MRB in DTC is 0 When 0 is written to TGFD after reading TGFD = 1 [Setting conditions] When TCNT = TGRD while TGRD is functioning as output compare register When TCNT value is transferred to TGRD by input capture signal while TGRD is functioning as input capture register Bit 2--Input Capture/Output Compare Flag C (TGFC): Status flag that indicates the occurrence of TGRC input capture or compare match in channels 0 and 3. In channels 1, 2, 4, and 5, bit 2 is reserved. It is always read as 0 and cannot be modified. 314 Bit 2 TGFC 0 Description [Clearing conditions] * * 1 * * (Initial value) When DTC is activated by TGIC interrupt while DISEL bit of MRB in DTC is 0 When 0 is written to TGFC after reading TGFC = 1 [Setting conditions] When TCNT = TGRC while TGRC is functioning as output compare register When TCNT value is transferred to TGRC by input capture signal while TGRC is functioning as input capture register Bit 1--Input Capture/Output Compare Flag B (TGFB): Status flag that indicates the occurrence of TGRB input capture or compare match. Bit 1 TGFB 0 Description [Clearing conditions] * * 1 * * (Initial value) When DTC is activated by TGIB interrupt while DISEL bit of MRB in DTC is 0 When 0 is written to TGFB after reading TGFB = 1 [Setting conditions] When TCNT = TGRB while TGRB is functioning as output compare register When TCNT value is transferred to TGRB by input capture signal while TGRB is functioning as input capture register Bit 0--Input Capture/Output Compare Flag A (TGFA): Status flag that indicates the occurrence of TGRA input capture or compare match. Bit 0 TGFA 0 Description [Clearing conditions] * * 1 (Initial value) When DTC is activated by TGIA interrupt while DISEL bit of MRB in DTC is 0 When 0 is written to TGFA after reading TGFA = 1 [Setting conditions] * * When TCNT = TGRA while TGRA is functioning as output compare register When TCNT value is transferred to TGRA by input capture signal while TGRA is functioning as input capture register 315 9.2.6 Timer Counter (TCNT) Channel 0: TCNT0 (up-counter) Channel 1: TCNT1 (up/down-counter*) Channel 2: TCNT2 (up/down-counter*) Channel 3: TCNT3 (up-counter) Channel 4: TCNT4 (up/down-counter*) Channel 5: TCNT5 (up/down-counter*) Bit : 15 0 14 0 13 0 12 0 11 0 10 0 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 0 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Note : * These counters can be used as up/down-counters only in phase counting mode or when counting overflow/underflow on another channel. In other cases they function as up-counters. The TCNT registers are 16-bit counters. The TPU has six TCNT counters, one for each channel. The TCNT counters are initialized to H'0000 by a reset, and in hardware standby mode. The TCNT counters cannot be accessed in 8-bit units; they must always be accessed as a 16-bit unit. 316 9.2.7 Bit Timer General Register (TGR) : 15 1 14 1 13 1 12 1 11 1 10 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W The TGR registers are 16-bit registers with a dual function as output compare and input capture registers. The TPU has 16 TGR registers, four each for channels 0 and 3 and two each for channels 1, 2, 4, and 5. TGRC and TGRD for channels 0 and 3 can also be designated for operation as buffer registers*. The TGR registers are initialized to H'FFFF by a reset, and in hardware standby mode. The TGR registers cannot be accessed in 8-bit units; they must always be accessed as a 16-bit unit. Note: * TGR buffer register combinations are TGRA--TGRC and TGRB--TGRD. 317 9.2.8 Bit Timer Start Register (TSTR) : 7 -- 0 -- 6 -- 0 -- 5 CST5 0 R/W 4 CST4 0 R/W 3 CST3 0 R/W 2 CST2 0 R/W 1 CST1 0 R/W 0 CST0 0 R/W Initial value : R/W : TSTR is an 8-bit readable/writable register that selects operation/stoppage for channels 0 to 5. TSTR is initialized to H'00 by a reset, and in hardware standby mode. Note: When setting the operating mode in TMDR or setting the count clock in TCR, first stop the TCNT counter. Bits 7 and 6--Reserved: Should always be written with 0. Bits 5 to 0--Counter Start 5 to 0 (CST5 to CST0): These bits select operation or stoppage for TCNT. Bit n CSTn 0 1 Description TCNTn count operation is stopped TCNTn performs count operation (Initial value) n = 5 to 0 Note: If 0 is written to the CST bit during operation with the TIOC pin designated for output, the counter stops but the TIOC pin output compare output level is retained. If TIOR is written to when the CST bit is cleared to 0, the pin output level will be changed to the set initial output value. 318 9.2.9 Bit Timer Synchro Register (TSYR) : 7 -- 0 -- 6 -- 0 -- 5 SYNC5 0 R/W 4 SYNC4 0 R/W 3 SYNC3 0 R/W 2 SYNC2 0 R/W 1 SYNC1 0 R/W 0 SYNC0 0 R/W Initial value : R/W : TSYR is an 8-bit readable/writable register that selects independent operation or synchronous operation for the channel 0 to 5 TCNT counters. A channel performs synchronous operation when the corresponding bit in TSYR is set to 1. TSYR is initialized to H'00 by a reset, and in hardware standby mode. Bits 7 and 6--Reserved: Should always be written with 0. Bits 5 to 0--Timer Synchro 5 to 0 (SYNC5 to SYNC0): These bits select whether operation is independent of or synchronized with other channels. When synchronous operation is selected, synchronous presetting of multiple channels*1, and synchronous clearing through counter clearing on another channel* 2 are possible. Bit n SYNCn 0 1 Description TCNTn operates independently (TCNT presetting/clearing is unrelated to other channels) (Initial value) TCNTn performs synchronous operation TCNT synchronous presetting/synchronous clearing is possible n = 5 to 0 Notes: 1. To set synchronous operation, the SYNC bits for at least two channels must be set to 1. 2. To set synchronous clearing, in addition to the SYNC bit , the TCNT clearing source must also be set by means of bits CCLR2 to CCLR0 in TCR. 319 9.2.10 Module Stop Control Register (MSTPCR) MSTPCRH MSTPCRL 10 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 Bit : 15 0 14 0 13 1 12 1 11 1 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W MSTPCR is a 16-bit readable/writable register that performs module stop mode control. When the MSTP13 bit in MSTPCR is set to 1, TPU operation stops at the end of the bus cycle and a transition is made to module stop mode. Registers cannot be read or written to in module stop mode. For details, see section 19.5, Module Stop Mode. MSTPCR is initialized to H'3FFF by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 13--Module Stop (MSTP13): Specifies the TPU module stop mode. Bit 13 MSTP13 0 1 Description TPU module stop mode cleared TPU module stop mode set (Initial value) 320 9.3 9.3.1 Interface to Bus Master 16-Bit Registers TCNT and TGR are 16-bit registers. As the data bus to the bus master is 16 bits wide, these registers can be read and written to in 16-bit units. These registers cannot be read or written to in 8-bit units; 16-bit access must always be used. An example of 16-bit register access operation is shown in figure 9.2. Internal data bus H Bus master Module data bus L Bus interface TCNTH TCNTL Figure 9.2 16-Bit Register Access Operation [Bus Master TCNT (16 Bits)] 9.3.2 8-Bit Registers Registers other than TCNT and TGR are 8-bit. As the data bus to the CPU is 16 bits wide, these registers can be read and written to in 16-bit units. They can also be read and written to in 8-bit units. Examples of 8-bit register access operation are shown in figures 9.3, 9.4, and 9.5. Internal data bus H Bus master Module data bus L Bus interface TCR Figure 9.3 8-Bit Register Access Operation [Bus Master TCR (Upper 8 Bits)] 321 Internal data bus H Bus master Module data bus L Bus interface TMDR Figure 9.4 8-Bit Register Access Operation [Bus Master TMDR (Lower 8 Bits)] Internal data bus H Bus master Module data bus L Bus interface TCR TMDR Figure 9.5 8-Bit Register Access Operation [Bus Master TCR and TMDR (16 Bits)] 322 9.4 9.4.1 Operation Overview Operation in each mode is outlined below. Normal Operation: Each channel has a TCNT and TGR register. TCNT performs up-counting, and is also capable of free-running operation, synchronous counting, and external event counting. Each TGR can be used as an input capture register or output compare register. Synchronous Operation: When synchronous operation is designated for a channel, TCNT for that channel performs synchronous presetting. That is, when TCNT for a channel designated for synchronous operation is rewritten, the TCNT counters for the other channels are also rewritten at the same time. Synchronous clearing of the TCNT counters is also possible by setting the timer synchronization bits in TSYR for channels designated for synchronous operation. Buffer Operation * When TGR is an output compare register When a compare match occurs, the value in the buffer register for the relevant channel is transferred to TGR. * When TGR is an input capture register When input capture occurs, the value in TCNT is transfer to TGR and the value previously held in TGR is transferred to the buffer register. Cascaded Operation: The channel 1 counter (TCNT1), channel 2 counter (TCNT2), channel 4 counter (TCNT4), and channel 5 counter (TCNT5) can be connected together to operate as a 32bit counter. PWM Mode: In this mode, a PWM waveform is output. The output level can be set by means of TIOR. A PWM waveform with a duty of between 0% and 100% can be output, according to the setting of each TGR register. Phase Counting Mode: In this mode, TCNT is incremented or decremented by detecting the phases of two clocks input from the external clock input pins in channels 1, 2, 4, and 5. When phase counting mode is set, the corresponding TCLK pin functions as the clock pin, and TCNT performs up- or down-counting. This can be used for two-phase encoder pulse input. 323 9.4.2 Basic Functions Counter Operation: When one of bits CST0 to CST5 is set to 1 in TSTR, the TCNT counter for the corresponding channel starts counting. TCNT can operate as a free-running counter, periodic counter, and so on. * Example of count operation setting procedure Figure 9.6 shows an example of the count operation setting procedure. Operation selection Select counter clock [1] [1] Select the counter clock with bits TPSC2 to TPSC0 in TCR. At the same time, select the input clock edge with bits CKEG1 and CKEG0 in TCR. Free-running counter [2] For periodic counter operation, select the TGR to be used as the TCNT clearing source with bits CCLR2 to CCLR0 in TCR. [3] Designate the TGR selected in [2] as an output compare register by means of TIOR. [4] Set the periodic counter cycle in the TGR selected in [2]. Start count operation Periodic counter Select counter clearing source [2] Select output compare register [3] Set period [4] Start count operation [5] Figure 9.6 Example of Counter Operation Setting Procedure 324 * Free-running count operation and periodic count operation Immediately after a reset, the TPU's TCNT counters are all designated as free-running counters. When the relevant bit in TSTR is set to 1 the corresponding TCNT counter starts upcount operation as a free-running counter. When TCNT overflows (from H'FFFF to H'0000), the TCFV bit in TSR is set to 1. If the value of the corresponding TCIEV bit in TIER is 1 at this point, the TPU requests an interrupt. After overflow, TCNT starts counting up again from H'0000. Figure 9.7 illustrates free-running counter operation. TCNT value H'FFFF H'0000 Time CST bit TCFV Figure 9.7 Free-Running Counter Operation When compare match is selected as the TCNT clearing source, the TCNT counter for the relevant channel performs periodic count operation. The TGR register for setting the period is designated as an output compare register, and counter clearing by compare match is selected by means of bits CCLR2 to CCLR0 in TCR. After the settings have been made, TCNT starts up-count operation as periodic counter when the corresponding bit in TSTR is set to 1. When the count value matches the value in TGR, the TGF bit in TSR is set to 1 and TCNT is cleared to H'0000. If the value of the corresponding TGIE bit in TIER is 1 at this point, the TPU requests an interrupt. After a compare match, TCNT starts counting up again from H'0000. 325 Figure 9.8 illustrates periodic counter operation. Counter cleared by TGR compare match TCNT value TGR H'0000 Time CST bit Flag cleared by software or DTC activation TGF Figure 9.8 Periodic Counter Operation Waveform Output by Compare Match: The TPU can perform 0, 1, or toggle output from the corresponding output pin using compare match. * Example of setting procedure for waveform output by compare match Figure 9.9 shows an example of the setting procedure for waveform output by compare match [1] Select initial value 0 output or 1 output, and compare match output value 0 output, 1 output, or toggle output, by means of TIOR. The set initial value is output at the TIOC pin until the first compare match occurs. [2] Set the timing for compare match generation in TGR. Set output timing [2] Output selection Select waveform output mode [1] [3] Set the CST bit in TSTR to 1 to start the count operation. Start count operation [3] Figure 9.9 Example Of Setting Procedure For Waveform Output By Compare Match 326 * Examples of waveform output operation Figure 9.10 shows an example of 0 output/1 output. In this example TCNT has been designated as a free-running counter, and settings have been made so that 1 is output by compare match A, and 0 is output by compare match B. When the set level and the pin level coincide, the pin level does not change. TCNT value H'FFFF TGRA TGRB H'0000 No change TIOCA TIOCB No change No change No change 1 output 0 output Time Figure 9.10 Example of 0 Output/1 Output Operation Figure 9.11 shows an example of toggle output. In this example TCNT has been designated as a periodic counter (with counter clearing performed by compare match B), and settings have been made so that output is toggled by both compare match A and compare match B. TCNT value Counter cleared by TGRB compare match H'FFFF TGRB TGRA H'0000 Time Toggle output Toggle output TIOCB TIOCA Figure 9.11 Example of Toggle Output Operation 327 Input Capture Function: The TCNT value can be transferred to TGR on detection of the TIOC pin input edge. Rising edge, falling edge, or both edges can be selected as the detected edge. For channels 0, 1, 3, and 4, it is also possible to specify another channel's counter input clock or compare match signal as the input capture source. Note: When another channel's counter input clock is used as the input capture input for channels 0 and 3, o/1 should not be selected as the counter input clock used for input capture input. Input capture will not be generated if o/1 is selected. * Example of input capture operation setting procedure Figure 9.12 shows an example of the input capture operation setting procedure. Input selection [1] Designate TGR as an input capture register by means of TIOR, and select rising edge, falling edge, or both edges as the input capture source and input signal edge. [1] Select input capture input [2] Set the CST bit in TSTR to 1 to start the count operation. Start count [2] Figure 9.12 Example of Input Capture Operation Setting Procedure 328 * Example of input capture operation Figure 9.13 shows an example of input capture operation. In this example both rising and falling edges have been selected as the TIOCA pin input capture input edge, falling edge has been selected as the TIOCB pin input capture input edge, and counter clearing by TGRB input capture has been designated for TCNT. Counter cleared by TIOCB input (falling edge) TCNT value H'0180 H'0160 H'0010 H'0005 H'0000 Time TIOCA TGRA H'0005 H'0160 H'0010 TIOCB TGRB H'0180 Figure 9.13 Example of Input Capture Operation 329 9.4.3 Synchronous Operation In synchronous operation, the values in a number of TCNT counters can be rewritten simultaneously (synchronous presetting). Also, a number of TCNT counters can be cleared simultaneously by making the appropriate setting in TCR (synchronous clearing). Synchronous operation enables TGR to be incremented with respect to a single time base. Channels 0 to 5 can all be designated for synchronous operation. Example of Synchronous Operation Setting Procedure: Figure 9.14 shows an example of the synchronous operation setting procedure. Synchronous operation selection Set synchronous operation [1] Synchronous presetting Synchronous clearing Set TCNT [2] Clearing sourcegeneration channel? Yes Select counter clearing source Start count No [3] [5] Set synchronous counter clearing Start count [4] [5] [1] [2] [3] [4] [5] Set to 1 the SYNC bits in TSYR corresponding to the channels to be designated for synchronous operation. When the TCNT counter of any of the channels designated for synchronous operation is written to, the same value is simultaneously written to the other TCNT counters. Use bits CCLR2 to CCLR0 in TCR to specify TCNT clearing by input capture/output compare, etc. Use bits CCLR2 to CCLR0 in TCR to designate synchronous clearing for the counter clearing source. Set to 1 the CST bits in TSTR for the relevant channels, to start the count operation. Figure 9.14 Example of Synchronous Operation Setting Procedure 330 Example of Synchronous Operation: Figure 9.15 shows an example of synchronous operation. In this example, synchronous operation and PWM mode 1 have been designated for channels 0 to 2, TGR0B compare match has been set as the channel 0 counter clearing source, and synchronous clearing has been set for the channel 1 and 2 counter clearing source. Three-phase PWM waveforms are output from pins TIOC0A, TIOC1A, and TIOC2A. At this time, synchronous presetting, and synchronous clearing by TGR0B compare match, is performed for channel 0 to 2 TCNT counters, and the data set in TGR0B is used as the PWM cycle. For details of PWM modes, see section 9.4.6, PWM Modes. Synchronous clearing by TGR0B compare match TCNT0 to TCNT2 values TGR0B TGR1B TGR0A TGR2B TGR1A TGR2A H'0000 Time TIOC0A TIOC1A TIOC2A Figure 9.15 Example of Synchronous Operation 331 9.4.4 Buffer Operation Buffer operation, provided for channels 0 and 3, enables TGRC and TGRD to be used as buffer registers. Buffer operation differs depending on whether TGR has been designated as an input capture register or as a compare match register. Table 9.5 shows the register combinations used in buffer operation. Table 9.5 Channel 0 Register Combinations in Buffer Operation Timer General Register TGR0A TGR0B Buffer Register TGR0C TGR0D TGR3C TGR3D 3 TGR3A TGR3B * When TGR is an output compare register When a compare match occurs, the value in the buffer register for the corresponding channel is transferred to the timer general register. This operation is illustrated in figure 9.16. Compare match signal Buffer register Timer general register Comparator TCNT Figure 9.16 Compare Match Buffer Operation 332 * When TGR is an input capture register When input capture occurs, the value in TCNT is transferred to TGR and the value previously held in the timer general register is transferred to the buffer register. This operation is illustrated in figure 9.17. Input capture signal Timer general register Buffer register TCNT Figure 9.17 Input Capture Buffer Operation Example of Buffer Operation Setting Procedure: Figure 9.18 shows an example of the buffer operation setting procedure. [1] Designate TGR as an input capture register or output compare register by means of TIOR. [1] Buffer operation Select TGR function [2] Designate TGR for buffer operation with bits BFA and BFB in TMDR. [3] Set the CST bit in TSTR to 1 to start the count operation. Set buffer operation [2] Start count [3] Figure 9.18 Example of Buffer Operation Setting Procedure 333 Examples of Buffer Operation * When TGR is an output compare register Figure 9.19 shows an operation example in which PWM mode 1 has been designated for channel 0, and buffer operation has been designated for TGRA and TGRC. The settings used in this example are TCNT clearing by compare match B, 1 output at compare match A, and 0 output at compare match B. As buffer operation has been set, when compare match A occurs the output changes and the value in buffer register TGRC is simultaneously transferred to timer general register TGRA. This operation is repeated each time compare match A occurs. For details of PWM modes, see section 9.4.6, PWM Modes. TCNT value TGR0B H'0200 TGR0A H'0000 TGR0C H'0200 Transfer TGR0A H'0200 H'0450 H'0450 H'0520 Time H'0520 H'0450 TIOCA Figure 9.19 Example of Buffer Operation (1) 334 * When TGR is an input capture register Figure 9.20 shows an operation example in which TGRA has been designated as an input capture register, and buffer operation has been designated for TGRA and TGRC. Counter clearing by TGRA input capture has been set for TCNT, and both rising and falling edges have been selected as the TIOCA pin input capture input edge. As buffer operation has been set, when the TCNT value is stored in TGRA upon occurrence of input capture A, the value previously stored in TGRA is simultaneously transferred to TGRC. TCNT value H'0F07 H'09FB H'0532 H'0000 Time TIOCA TGRA H'0532 H'0F07 H'09FB TGRC H'0532 H'0F07 Figure 9.20 Example of Buffer Operation (2) 335 9.4.5 Cascaded Operation In cascaded operation, two 16-bit counters for different channels are used together as a 32-bit counter. This function works by counting the channel 1 (channel 4) counter clock upon overflow/underflow of TCNT2 (TCNT5) as set in bits TPSC2 to TPSC0 in TCR. Underflow occurs only when the lower 16-bit TCNT is in phase-counting mode. Table 9.6 shows the register combinations used in cascaded operation. Note: When phase counting mode is set for channel 1 or 4, the counter clock setting is invalid and the counter operates independently in phase counting mode. Table 9.6 Cascaded Combinations Upper 16 Bits TCNT1 TCNT4 Lower 16 Bits TCNT2 TCNT5 Combination Channels 1 and 2 Channels 4 and 5 Example of Cascaded Operation Setting Procedure: Figure 9.21 shows an example of the setting procedure for cascaded operation. Cascaded operation [1] Set bits TPSC2 to TPSC0 in the channel 1 (channel 4) TCR to B'111 to select TCNT2 (TCNT5) overflow/underflow counting. [1] Set cascading [2] Set the CST bit in TSTR for the upper and lower channel to 1 to start the count operation. Start count [2] Figure 9.21 Cascaded Operation Setting Procedure 336 Examples of Cascaded Operation: Figure 9.22 illustrates the operation when counting upon TCNT2 overflow/underflow has been set for TCNT1, TGR1A and TGR2A have been designated as input capture registers, and TIOC pin rising edge has been selected. When a rising edge is input to the TIOCA1 and TIOCA2 pins simultaneously, the upper 16 bits of the 32-bit data are transferred to TGR1A, and the lower 16 bits to TGR2A. TCNT1 clock TCNT1 TCNT2 clock TCNT2 TIOCA1, TIOCA2 TGR1A H'03A2 H'FFFF H'0000 H'0001 H'03A1 H'03A2 TGR2A H'0000 Figure 9.22 Example of Cascaded Operation (1) Figure 9.23 illustrates the operation when counting upon TCNT2 overflow/underflow has been set for TCNT1, and phase counting mode has been designated for channel 2. TCNT1 is incremented by TCNT2 overflow and decremented by TCNT2 underflow. TCLKA TCLKB TCNT2 FFFD FFFE FFFF 0000 0001 0002 0001 0000 FFFF TCNT1 0000 0001 0000 Figure 9.23 Example of Cascaded Operation (2) 337 9.4.6 PWM Modes In PWM mode, PWM waveforms are output from the output pins. 0, 1, or toggle output can be selected as the output level in response to compare match of each TGR. Designating TGR compare match as the counter clearing source enables the period to be set in that register. All channels can be designated for PWM mode independently. Synchronous operation is also possible. There are two PWM modes, as described below. * PWM mode 1 PWM output is generated from the TIOCA and TIOCC pins by pairing TGRA with TGRB and TGRC with TGRD. The output specified by bits IOA3 to IOA0 and IOC3 to IOC0 in TIOR is output from the TIOCA and TIOCC pins at compare matches A and C, and the output specified by bits IOB3 to IOB0 and IOD3 to IOD0 in TIOR is output at compare matches B and D. The initial output value is the value set in TGRA or TGRC. If the set values of paired TGRs are identical, the output value does not change when a compare match occurs. In PWM mode 1, a maximum 8-phase PWM output is possible. * PWM mode 2 PWM output is generated using one TGR as the cycle register and the others as duty registers. The output specified in TIOR is performed by means of compare matches. Upon counter clearing by a synchronization register compare match, the output value of each pin is the initial value set in TIOR. If the set values of the cycle and duty registers are identical, the output value does not change when a compare match occurs. In PWM mode 2, a maximum 15-phase PWM output is possible by combined use with synchronous operation. The correspondence between PWM output pins and registers is shown in table 9.7. 338 Table 9.7 PWM Output Registers and Output Pins Output Pins Channel 0 Registers TGR0A TGR0B TGR0C TGR0D PWM Mode 1 TIOCA0 PWM Mode 2 TIOCA0 TIOCB0 TIOCC0 TIOCC0 TIOCD0 1 TGR1A TGR1B TIOCA1 TIOCA1 TIOCB1 2 TGR2A TGR2B TIOCA2 TIOCA2 TIOCB2 3 TGR3A TGR3B TGR3C TGR3D TIOCA3 TIOCA3 TIOCB3 TIOCC3 TIOCC3 TIOCD3 4 TGR4A TGR4B TIOCA4 TIOCA4 TIOCB4 5 TGR5A TGR5B TIOCA5 TIOCA5 TIOCB5 Note: In PWM mode 2, PWM output is not possible for the TGR register in which the period is set. 339 Example of PWM Mode Setting Procedure: Figure 9.24 shows an example of the PWM mode setting procedure. PWM mode Select counter clock [1] [1] Select the counter clock with bits TPSC2 to TPSC0 in TCR. At the same time, select the input clock edge with bits CKEG1 and CKEG0 in TCR. [2] Use bits CCLR2 to CCLR0 in TCR to select the TGR to be used as the TCNT clearing source. Select counter clearing source [2] Select waveform output level [3] [3] Use TIOR to designate the TGR as an output compare register, and select the initial value and output value. [4] Set the cycle in the TGR selected in [2], and set the duty in the other the TGR. [5] Select the PWM mode with bits MD3 to MD0 in TMDR. Set TGR [4] Set PWM mode [5] [6] Set the CST bit in TSTR to 1 to start the count operation. Start count [6] Figure 9.24 Example of PWM Mode Setting Procedure Examples of PWM Mode Operation: Figure 9.25 shows an example of PWM mode 1 operation. In this example, TGRA compare match is set as the TCNT clearing source, 0 is set for the TGRA initial output value and output value, and 1 is set as the TGRB output value. In this case, the value set in TGRA is used as the period, and the values set in TGRB registers as the duty. 340 TCNT value TGRA Counter cleared by TGRA compare match TGRB H'0000 Time TIOCA Figure 9.25 Example of PWM Mode Operation (1) Figure 9.26 shows an example of PWM mode 2 operation. In this example, synchronous operation is designated for channels 0 and 1, TGR1B compare match is set as the TCNT clearing source, and 0 is set for the initial output value and 1 for the output value of the other TGR registers (TGR0A to TGR0D, TGR1A), to output a 5-phase PWM waveform. In this case, the value set in TGR1B is used as the cycle, and the values set in the other TGRs as the duty. Counter cleared by TGR1B compare match TCNT value TGR1B TGR1A TGR0D TGR0C TGR0B TGR0A H'0000 Time TIOCA0 TIOCB0 TIOCC0 TIOCD0 TIOCA1 Figure 9.26 Example of PWM Mode Operation (2) 341 Figure 9.27 shows examples of PWM waveform output with 0% duty and 100% duty in PWM mode. TCNT value TGRA TGRB rewritten TGRB H'0000 0% duty TGRB rewritten TGRB rewritten Time TIOCA Output does not change when cycle register and duty register compare matches occur simultaneously TCNT value TGRB rewritten TGRA TGRB rewritten TGRB H'0000 100% duty TGRB rewritten Time TIOCA Output does not change when cycle register and duty register compare matches occur simultaneously TCNT value TGRB rewritten TGRA TGRB rewritten TGRB H'0000 100% duty 0% duty TGRB rewritten Time TIOCA Figure 9.27 Example of PWM Mode Operation (3) 342 9.4.7 Phase Counting Mode In phase counting mode, the phase difference between two external clock inputs is detected and TCNT is incremented/decremented accordingly. This mode can be set for channels 1, 2, 4, and 5. When phase counting mode is set, an external clock is selected as the counter input clock and TCNT operates as an up/down-counter regardless of the setting of bits TPSC2 to TPSC0 and bits CKEG1 and CKEG0 in TCR. However, the functions of bits CCLR1 and CCLR0 in TCR, and of TIOR, TIER, and TGR are valid, and input capture/compare match and interrupt functions can be used. When overflow occurs while TCNT is counting up, the TCFV flag in TSR is set; when underflow occurs while TCNT is counting down, the TCFU flag is set. The TCFD bit in TSR is the count direction flag. Reading the TCFD flag provides an indication of whether TCNT is counting up or down. Table 9.8 shows the correspondence between external clock pins and channels. Table 9.8 Phase Counting Mode Clock Input Pins External Clock Pins Channels When channel 1 or 5 is set to phase counting mode When channel 2 or 4 is set to phase counting mode A-Phase TCLKA TCLKC B-Phase TCLKB TCLKD Example of Phase Counting Mode Setting Procedure: Figure 9.28 shows an example of the phase counting mode setting procedure. Phase counting mode [1] Select phase counting mode with bits MD3 to MD0 in TMDR. [2] Set the CST bit in TSTR to 1 to start the count operation. Select phase counting mode [1] Start count [2] Figure 9.28 Example of Phase Counting Mode Setting Procedure 343 Examples of Phase Counting Mode Operation: In phase counting mode, TCNT counts up or down according to the phase difference between two external clocks. There are four modes, according to the count conditions. * Phase counting mode 1 Figure 9.29 shows an example of phase counting mode 1 operation, and table 9.9 summarizes the TCNT up/down-count conditions. TCLKA (channels 1 and 5) TCLKC (channels 2 and 4) TCLKB (channels 1 and 5) TCLKD (channels 2 and 4) TCNT value Up-count Down-count Time Figure 9.29 Example of Phase Counting Mode 1 Operation Table 9.9 Up/Down-Count Conditions in Phase Counting Mode 1 TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) Operation Up-count TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) High level Low level Low level High level High level Low level High level Low level Legend : Rising edge : Falling edge Down-count 344 * Phase counting mode 2 Figure 9.30 shows an example of phase counting mode 2 operation, and table 9.10 summarizes the TCNT up/down-count conditions. TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) TCNT value Up-count Down-count Time Figure 9.30 Example of Phase Counting Mode 2 Operation Table 9.10 Up/Down-Count Conditions in Phase Counting Mode 2 TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) High level Low level Low level High level High level Low level High level Low level Legend : Rising edge : Falling edge TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) Operation Don't care Don't care Don't care Up-count Don't care Don't care Don't care Down-count 345 * Phase counting mode 3 Figure 9.31 shows an example of phase counting mode 3 operation, and table 9.11 summarizes the TCNT up/down-count conditions. TCLKA (channels 1 and 5) TCLKC (channels 2 and 4) TCLKB (channels 1 and 5) TCLKD (channels 2 and 4) TCNT value Up-count Down-count Time Figure 9.31 Example of Phase Counting Mode 3 Operation Table 9.11 Up/Down-Count Conditions in Phase Counting Mode 3 TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) High level Low level Low level High level High level Low level High level Low level Legend : Rising edge : Falling edge TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) Operation Don't care Don't care Don't care Up-count Down-count Don't care Don't care Don't care 346 * Phase counting mode 4 Figure 9.32 shows an example of phase counting mode 4 operation, and table 9.12 summarizes the TCNT up/down-count conditions. TCLKA (channels 1 and 5) TCLKC (channels 2 and 4) TCLKB (channels 1 and 5) TCLKD (channels 2 and 4) TCNT value Down-count Up-count Time Figure 9.32 Example of Phase Counting Mode 4 Operation Table 9.12 Up/Down-Count Conditions in Phase Counting Mode 4 TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) High level Low level Low level High level High level Low level High level Low level Legend : Rising edge : Falling edge Don't care Down-count Don't care TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) Operation Up-count 347 Phase Counting Mode Application Example: Figure 9.33 shows an example in which phase counting mode is designated for channel 1, and channel 1 is coupled with channel 0 to input servo motor 2-phase encoder pulses in order to detect the position or speed. Channel 1 is set to phase counting mode 1, and the encoder pulse A-phase and B-phase are input to TCLKA and TCLKB. Channel 0 operates with TCNT counter clearing by TGR0C compare match; TGR0A and TGR0C are used for the compare match function, and are set with the speed control period and position control period. TGR0B is used for input capture, with TGR0B and TGR0D operating in buffer mode. The channel 1 counter input clock is designated as the TGR0B input capture source, and detection of the pulse width of 2-phase encoder 4-multiplication pulses is performed. TGR1A and TGR1B for channel 1 are designated for input capture, channel 0 TGR0A and TGR0C compare matches are selected as the input capture source, and store the up/down-counter values for the control periods. This procedure enables accurate position/speed detection to be achieved. 348 Channel 1 TCLKA TCLKB Edge detection circuit TCNT1 TGR1A (speed period capture) TGR1B (position period capture) TCNT0 + TGR0A (speed control period) - TGR0C (position control period) + - TGR0B (pulse width capture) TGR0D (buffer operation) Channel 0 Figure 9.33 Phase Counting Mode Application Example 9.5 9.5.1 Interrupts Interrupt Sources and Priorities There are three kinds of TPU interrupt source: TGR input capture/compare match, TCNT overflow, and TCNT underflow. Each interrupt source has its own status flag and enable/disabled bit, allowing generation of interrupt request signals to be enabled or disabled individually. When an interrupt request is generated, the corresponding status flag in TSR is set to 1. If the corresponding enable/disable bit in TIER is set to 1 at this time, an interrupt is requested. The interrupt request is cleared by clearing the status flag to 0. Relative channel priorities can be changed by the interrupt controller, but the priority order within a channel is fixed. For details, see section 5, Interrupt Controller. 349 Table 9.13 lists the TPU interrupt sources. Table 9.13 TPU Interrupts Channel 0 Interrupt Source TGI0A TGI0B TGI0C TGI0D TCI0V 1 TGI1A TGI1B TCI1V TCI1U 2 TGI2A TGI2B TCI2V TCI2U 3 TGI3A TGI3B TGI3C TGI3D TCI3V 4 TGI4A TGI4B TCI4V TCI4U 5 TGI5A TGI5B TCI5V TCI5U Description TGR0A input capture/compare match TGR0B input capture/compare match TGR0C input capture/compare match TGR0D input capture/compare match TCNT0 overflow TGR1A input capture/compare match TGR1B input capture/compare match TCNT1 overflow TCNT1 underflow TGR2A input capture/compare match TGR2B input capture/compare match TCNT2 overflow TCNT2 underflow TGR3A input capture/compare match TGR3B input capture/compare match TGR3C input capture/compare match TGR3D input capture/compare match TCNT3 overflow TGR4A input capture/compare match TGR4B input capture/compare match TCNT4 overflow TCNT4 underflow TGR5A input capture/compare match TGR5B input capture/compare match TCNT5 overflow TCNT5 underflow DTC Activation Possible Possible Possible Possible Not possible Possible Possible Not possible Not possible Possible Possible Not possible Not possible Possible Possible Possible Possible Not possible Possible Possible Not possible Not possible Possible Possible Not possible Not possible Low Priority High Note: This table shows the initial state immediately after a reset. The relative channel priorities can be changed by the interrupt controller. 350 Input Capture/Compare Match Interrupt: An interrupt is requested if the TGIE bit in TIER is set to 1 when the TGF flag in TSR is set to 1 by the occurrence of a TGR input capture/compare match on a particular channel. The interrupt request is cleared by clearing the TGF flag to 0. The TPU has 16 input capture/compare match interrupts, four each for channels 0 and 3, and two each for channels 1, 2, 4, and 5. Overflow Interrupt: An interrupt is requested if the TCIEV bit in TIER is set to 1 when the TCFV flag in TSR is set to 1 by the occurrence of TCNT overflow on a channel. The interrupt request is cleared by clearing the TCFV flag to 0. The TPU has six overflow interrupts, one for each channel. Underflow Interrupt: An interrupt is requested if the TCIEU bit in TIER is set to 1 when the TCFU flag in TSR is set to 1 by the occurrence of TCNT underflow on a channel. The interrupt request is cleared by clearing the TCFU flag to 0. The TPU has four overflow interrupts, one each for channels 1, 2, 4, and 5. 9.5.2 DTC Activation DTC Activation: The DTC can be activated by the TGR input capture/compare match interrupt for a channel. For details, see section 7, Data Transfer Controller. A total of 16 TPU input capture/compare match interrupts can be used as DTC activation sources, four each for channels 0 and 3, and two each for channels 1, 2, 4, and 5. 9.5.3 A/D Converter Activation The A/D converter can be activated by the TGRA input capture/compare match for a channel. If the TTGE bit in TIER is set to 1 when the TGFA flag in TSR is set to 1 by the occurrence of a TGRA input capture/compare match on a particular channel, a request to start A/D conversion is sent to the A/D converter. If the TPU conversion start trigger has been selected on the A/D converter side at this time, A/D conversion is started. In the TPU, a total of six TGRA input capture/compare match interrupts can be used as A/D converter conversion start sources, one for each channel. 351 9.6 9.6.1 Operation Timing Input/Output Timing TCNT Count Timing: Figure 9.34 shows TCNT count timing in internal clock operation, and figure 9.35 shows TCNT count timing in external clock operation. o Internal clock Falling edge Rising edge TCNT input clock TCNT N-1 N N+1 N+2 Figure 9.34 Count Timing in Internal Clock Operation o External clock Falling edge Rising edge Falling edge TCNT input clock TCNT N-1 N N+1 N+2 Figure 9.35 Count Timing in External Clock Operation 352 Output Compare Output Timing: A compare match signal is generated in the final state in which TCNT and TGR match (the point at which the count value matched by TCNT is updated). When a compare match signal is generated, the output value set in TIOR is output at the output compare output pin. After a match between TCNT and TGR, the compare match signal is not generated until the TCNT input clock is generated. Figure 9.36 shows output compare output timing. o TCNT input clock TCNT N N+1 TGR N Compare match signal TIOC pin Figure 9.36 Output Compare Output Timing Input Capture Signal Timing: Figure 9.37 shows input capture signal timing. o Input capture input Input capture signal TCNT N N+1 N+2 TGR N N+2 Figure 9.37 Input Capture Input Signal Timing 353 Timing for Counter Clearing by Compare Match/Input Capture: Figure 9.38 shows the timing when counter clearing by compare match occurrence is specified, and figure 9.39 shows the timing when counter clearing by input capture occurrence is specified. o Compare match signal Counter clear signal N H'0000 TCNT TGR N Figure 9.38 Counter Clear Timing (Compare Match) o Input capture signal Counter clear signal N H'0000 TCNT TGR N Figure 9.39 Counter Clear Timing (Input Capture) 354 Buffer Operation Timing: Figures 9.40 and 9.41 show the timing in buffer operation. o TCNT n n+1 Compare match signal TGRA, TGRB TGRC, TGRD n N N Figure 9.40 Buffer Operation Timing (Compare Match) o Input capture signal TCNT TGRA, TGRB TGRC, TGRD N N+1 n N N+1 n N Figure 9.41 Buffer Operation Timing (Input Capture) 355 9.6.2 Interrupt Signal Timing TGF Flag Setting Timing in Case of Compare Match: Figure 9.42 shows the timing for setting of the TGF flag in TSR by compare match occurrence, and TGI interrupt request signal timing. o TCNT input clock TCNT N N+1 TGR N Compare match signal TGF flag TGI interrupt Figure 9.42 TGI Interrupt Timing (Compare Match) 356 TGF Flag Setting Timing in Case of Input Capture: Figure 9.43 shows the timing for setting of the TGF flag in TSR by input capture occurrence, and TGI interrupt request signal timing. o Input capture signal TCNT N TGR N TGF flag TGI interrupt Figure 9.43 TGI Interrupt Timing (Input Capture) 357 TCFV Flag/TCFU Flag Setting Timing: Figure 9.44 shows the timing for setting of the TCFV flag in TSR by overflow occurrence, and TCIV interrupt request signal timing. Figure 9.45 shows the timing for setting of the TCFU flag in TSR by underflow occurrence, and TCIU interrupt request signal timing. o TCNT input clock TCNT (overflow) Overflow signal TCFV flag H'FFFF H'0000 TCIV interrupt Figure 9.44 TCIV Interrupt Setting Timing o TCNT input clock TCNT (underflow) Underflow signal H'0000 H'FFFF TCFU flag TCIU interrupt Figure 9.45 TCIU Interrupt Setting Timing 358 Status Flag Clearing Timing: After a status flag is read as 1 by the CPU, it is cleared by writing 0 to it. When the DTC is activated, the flag is cleared automatically. Figure 9.46 shows the timing for status flag clearing by the CPU, and figure 9.47 shows the timing for status flag clearing by the DTC. TSR write cycle T1 T2 o Address TSR address Write signal Status flag Interrupt request signal Figure 9.46 Timing for Status Flag Clearing by CPU DTC read cycle T1 o T2 DTC write cycle T1 T2 Address Source address Destination address Status flag Interrupt request signal Figure 9.47 Timing for Status Flag Clearing by DTC Activation 359 9.7 Usage Notes Note that the kinds of operation and contention described below occur during TPU operation. Input Clock Restrictions: The input clock pulse width must be at least 1.5 states in the case of single-edge detection, and at least 2.5 states in the case of both-edge detection. The TPU will not operate properly with a narrower pulse width. In phase counting mode, the phase difference and overlap between the two input clocks must be at least 1.5 states, and the pulse width must be at least 2.5 states. Figure 9.48 shows the input clock conditions in phase counting mode. Phase Phase differdifference Overlap ence Overlap TCLKA (TCLKC) TCLKB (TCLKD) Pulse width Pulse width Pulse width Pulse width Notes: Phase difference and overlap : 1.5 states or more : 2.5 states or more Pulse width Figure 9.48 Phase Difference, Overlap, and Pulse Width in Phase Counting Mode Caution on Period Setting: When counter clearing by compare match is set, TCNT is cleared in the final state in which it matches the TGR value (the point at which the count value matched by TCNT is updated). Consequently, the actual counter frequency is given by the following formula: f= (N + 1) Where f : Counter frequency o : Operating frequency N : TGR set value 360 Contention between TCNT Write and Clear Operations: If the counter clear signal is generated in the T2 state of a TCNT write cycle, TCNT clearing takes precedence and the TCNT write is not performed. Figure 9.49 shows the timing in this case. TCNT write cycle T1 T2 o Address TCNT address Write signal Counter clear signal TCNT N H'0000 Figure 9.49 Contention between TCNT Write and Clear Operations 361 Contention between TCNT Write and Increment Operations: If incrementing occurs in the T2 state of a TCNT write cycle, the TCNT write takes precedence and TCNT is not incremented. Figure 9.50 shows the timing in this case. TCNT write cycle T1 T2 o Address TCNT address Write signal TCNT input clock N TCNT write data M TCNT Figure 9.50 Contention between TCNT Write and Increment Operations 362 Contention between TGR Write and Compare Match: If a compare match occurs in the T2 state of a TGR write cycle, the TGR write takes precedence and the compare match signal is inhibited. A compare match does not occur even if the same value as before is written. Figure 9.51 shows the timing in this case. TGR write cycle T1 T2 o Address TGR address Write signal Compare match signal TCNT N N+1 Inhibited TGR N TGR write data M Figure 9.51 Contention between TGR Write and Compare Match 363 Contention between Buffer Register Write and Compare Match: If a compare match occurs in the T2 state of a TGR write cycle, the data transferred to TGR by the buffer operation will be the data prior to the write. Figure 9.52 shows the timing in this case. TGR write cycle T1 T2 o Address Buffer register address Write signal Compare match signal Buffer register write data Buffer register TGR N M N Figure 9.52 Contention between Buffer Register Write and Compare Match 364 Contention between TGR Read and Input Capture: If the input capture signal is generated in the T1 state of a TGR read cycle, the data that is read will be the data after input capture transfer. Figure 9.53 shows the timing in this case. TGR read cycle T1 T2 o Address TGR address Read signal Input capture signal TGR X M Internal data bus M Figure 9.53 Contention between TGR Read and Input Capture 365 Contention between TGR Write and Input Capture: If the input capture signal is generated in the T2 state of a TGR write cycle, the input capture operation takes precedence and the write to TGR is not performed. Figure 9.54 shows the timing in this case. TGR write cycle T1 T2 o Address TGR address Write signal Input capture signal TCNT M TGR M Figure 9.54 Contention between TGR Write and Input Capture 366 Contention between Buffer Register Write and Input Capture: If the input capture signal is generated in the T2 state of a buffer write cycle, the buffer operation takes precedence and the write to the buffer register is not performed. Figure 9.55 shows the timing in this case. Buffer register write cycle T1 T2 o Address Buffer register address Write signal Input capture signal TCNT N TGR Buffer register M N M Figure 9.55 Contention between Buffer Register Write and Input Capture 367 Contention between Overflow/Underflow and Counter Clearing: If overflow/underflow and counter clearing occur simultaneously, the TCFV/TCFU flag in TSR is not set and TCNT clearing takes precedence. Figure 9.56 shows the operation timing when a TGR compare match is specified as the clearing source, and H'FFFF is set in TGR. o TCNT input clock TCNT Counter clear signal TGF Disabled TCFV H'FFFF H'0000 Figure 9.56 Contention between Overflow and Counter Clearing 368 Contention between TCNT Write and Overflow/Underflow: If there is an up-count or downcount in the T2 state of a TCNT write cycle, and overflow/underflow occurs, the TCNT write takes precedence and the TCFV/TCFU flag in TSR is not set . Figure 9.57 shows the operation timing when there is contention between a TCNT write and overflow. TCNT write cycle T1 T2 o Address TCNT address Write signal TCNT write data H'FFFF M TCNT TCFV flag Figure 9.57 Contention between TCNT Write and Overflow Multiplexing of I/O Pins: In the H8S/2345 Series, the TCLKA input pin is multiplexed with the TIOCC0 I/O pin, the TCLKB input pin with the TIOCD0 I/O pin, the TCLKC input pin with the TIOCB1 I/O pin, and the TCLKD input pin with the TIOCB2 I/O pin. When an external clock is input, compare match output should not be performed from a multiplexed pin. Interrupts and Module Stop Mode: If module stop mode is entered when an interrupt has been requested, it will not be possible to clear the CPU interrupt source or DTC activation source. Interrupts should therefore be disabled before entering module stop mode. 369 Section 10 8-Bit Timers 10.1 Overview The H8S/2345 Series includes an 8-bit timer module with two channels (TMR0 and TMR1). Each channel has an 8-bit counter (TCNT) and two time constant registers (TCORA and TCORB) that are constantly compared with the TCNT value to detect compare match events. The 8-bit timer module can thus be used for a variety of functions, including pulse output with an arbitrary duty cycle. 10.1.1 Features The features of the 8-bit timer module are listed below. * Selection of four clock sources The counters can be driven by one of three internal clock signals (o/8, o/64, or o/8192) or an external clock input (enabling use as an external event counter). * Selection of three ways to clear the counters The counters can be cleared on compare match A or B, or by an external reset signal. * Timer output control by a combination of two compare match signals The timer output signal in each channel is controlled by a combination of two independent compare match signals, enabling the timer to generate output waveforms with an arbitrary duty cycle or PWM output. * Provision for cascading of two channels Operation as a 16-bit timer is possible, using channel 0 for the upper 8 bits and channel 1 for the lower 8 bits (16-bit count mode). Channel 1 can be used to count channel 0 compare matches (compare match count mode). * Three independent interrupts Compare match A and B and overflow interrupts can be requested independently. * A/D converter conversion start trigger can be generated Channel 0 compare match A signal can be used as an A/D converter conversion start trigger. * Module stop mode can be set As the initial setting, 8-bit timer operation is halted. Register access is enabled by exiting module stop mode. 371 10.1.2 Block Diagram Figure 10.1 shows a block diagram of the 8-bit timer module. External clock source TMCI0 TMCI1 Internal clock sources o/8 o/64 o/8192 Clock select Clock 1 Clock 0 TCORA0 Compare match A1 Compare match A0 Overflow 1 Overflow 0 Clear 0 Compare match B1 Compare match B0 Internal bus Clear 1 Comparator B0 Comparator B1 TCORA1 Comparator A0 Comparator A1 TMO0 TMRI0 TCNT0 TCNT1 TMO1 TMRI1 Control logic TCORB0 A/D conversion start request signal TCORB1 TCSR0 TCSR1 TCR0 CMIA0 CMIB0 OVI0 CMIA1 CMIB1 OVI1 Interrupt signals TCR1 Figure 10.1 Block Diagram of 8-Bit Timer 372 10.1.3 Pin Configuration Table 10.1 summarizes the input and output pins of the 8-bit timer. Table 10.1 Input and Output Pins of 8-Bit Timer Channel 0 Name Timer output pin 0 Timer clock input pin 0 Timer reset input pin 0 1 Timer output pin 1 Timer clock input pin 1 Timer reset input pin 1 Symbol TMO0 TMCI0 TMRI0 TMO1 TMCI1 TMRI1 I/O Output Input Input Output Input Input Function Outputs at compare match Inputs external clock for counter Inputs external reset to counter Outputs at compare match Inputs external clock for counter Inputs external reset to counter 10.1.4 Register Configuration Table 10.2 summarizes the registers of the 8-bit timer module. Table 10.2 8-Bit Timer Registers Channel 0 Name Timer control register 0 Abbreviation TCR0 R/W R/W R/(W)* R/W R/W R/W R/W R/(W)* R/W R/W R/W R/W 2 2 Initial value H'00 H'00 H'FF H'FF H'00 H'00 H'10 H'FF H'FF H'00 H'3FFF Address*1 H'FFB0 H'FFB2 H'FFB4 H'FFB6 H'FFB8 H'FFB1 H'FFB3 H'FFB5 H'FFB7 H'FFB9 H'FF3C Timer control/status register 0 TCSR0 Time constant register A0 Time constant register B0 Timer counter 0 1 Timer control register 1 TCORA0 TCORB0 TCNT0 TCR1 Timer control/status register 1 TCSR1 Time constant register A1 Time constant register B1 Timer counter 1 All Module stop control register TCORA1 TCORB1 TCNT1 MSTPCR Notes: 1. Lower 16 bits of the address 2. Only 0 can be written to bits 7 to 5, to clear these flags. Each pair of registers for channel 0 and channel 1 is a 16-bit register with the upper 8 bits for channel 0 and the lower 8 bits for channel 1, so they can be accessed together by word transfer instruction. 373 10.2 10.2.1 Register Descriptions Timer Counters 0 and 1 (TCNT0, TCNT1) TCNT0 Bit : 15 0 14 0 13 0 12 0 11 0 10 0 9 0 8 0 7 0 6 0 5 0 TCNT1 4 0 3 0 2 0 1 0 0 0 Initial value: R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W TCNT0 and TCNT1 are 8-bit readable/writable up-counters that increment on pulses generated from an internal or external clock source. This clock source is selected by clock select bits CKS2 to CKS0 of TCR. The CPU can read or write to TCNT0 and TCNT1 at all times. TCNT0 and TCNT1 comprise a single 16-bit register, so they can be accessed together by word transfer instruction. TCNT0 and TCNT1 can be cleared by an external reset input or by a compare match signal. Which signal is to be used for clearing is selected by clock clear bits CCLR1 and CCLR0 of TCR. When a timer counter overflows from H'FF to H'00, OVF in TCSR is set to 1. TCNT0 and TCNT1 are each initialized to H'00 by a reset and in hardware standby mode. 10.2.2 Time Constant Registers A0 and A1 (TCORA0, TCORA1) TCORA0 Bit : 15 1 14 1 13 1 12 1 11 1 10 1 9 1 8 1 7 1 6 1 5 1 TCORA1 4 1 3 1 2 1 1 1 0 1 Initial value: R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W TCORA0 and TCORA1 are 8-bit readable/writable registers. TCORA0 and TCORA1 comprise a single 16-bit register so they can be accessed together by word transfer instruction. TCORA is continually compared with the value in TCNT. When a match is detected, the corresponding CMFA flag of TCSR is set. Note, however, that comparison is disabled during the T2 state of a TCOR write cycle. The timer output can be freely controlled by these compare match signals and the settings of bits OS1 and OS0 of TCSR. TCORA0 and TCORA1 are each initialized to H'FF by a reset and in hardware standby mode. 374 10.2.3 Time Constant Registers B0 and B1 (TCORB0, TCORB1) TCORB0 TCORB1 10 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 Bit : 15 1 14 1 13 1 12 1 11 1 Initial value: R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W TCORB0 and TCORB1 are 8-bit readable/writable registers. TCORB0 and TCORB1 comprise a single 16-bit register so they can be accessed together by word transfer instruction. TCORB is continually compared with the value in TCNT. When a match is detected, the corresponding CMFB flag of TCSR is set. Note, however, that comparison is disabled during the T2 state of a TCOR write cycle. The timer output can be freely controlled by these compare match signals and the settings of output select bits OS3 and OS2 of TCSR. TCORB0 and TCORB1 are each initialized to H'FF by a reset and in hardware standby mode. 10.2.4 Bit Time Control Registers 0 and 1 (TCR0, TCR1) : 7 CMIEB 0 R/W 6 CMIEA 0 R/W 5 OVIE 0 R/W 4 CCLR1 0 R/W 3 CCLR0 0 R/W 2 CKS2 0 R/W 1 CKS1 0 R/W 0 CKS0 0 R/W Initial value: R/W : TCR0 and TCR1 are 8-bit readable/writable registers that select the clock source and the time at which TCNT is cleared, and enable interrupts. TCR0 and TCR1 are each initialized to H'00 by a reset and in hardware standby mode. For details of this timing, see section 10.3, Operation. Bit 7--Compare Match Interrupt Enable B (CMIEB): Selects whether CMFB interrupt requests (CMIB) are enabled or disabled when the CMFB flag of TCSR is set to 1. Bit 7 CMIEB 0 1 Description CMFB interrupt requests (CMIB) are disabled CMFB interrupt requests (CMIB) are enabled 375 (Initial value) Bit 6--Compare Match Interrupt Enable A (CMIEA): Selects whether CMFA interrupt requests (CMIA) are enabled or disabled when the CMFA flag of TCSR is set to 1. Bit 6 CMIEA 0 1 Description CMFA interrupt requests (CMIA) are disabled CMFA interrupt requests (CMIA) are enabled (Initial value) Bit 5--Timer Overflow Interrupt Enable (OVIE): Selects whether OVF interrupt requests (OVI) are enabled or disabled when the OVF flag of TCSR is set to 1. Bit 5 OVIE 0 1 Description OVF interrupt requests (OVI) are disabled OVF interrupt requests (OVI) are enabled (Initial value) Bits 4 and 3--Counter Clear 1 and 0 (CCLR1 and CCLR0): These bits select the method by which TCNT is cleared: by compare match A or B, or by an external reset input. Bit 4 CCLR1 0 Bit 3 CCLR0 0 1 1 0 1 Description Clear is disabled Clear by compare match A Clear by compare match B Clear by rising edge of external reset input (Initial value) Bits 2 to 0--Clock Select 2 to 0 (CKS2 to CKS0): These bits select whether the clock input to TCNT is an internal or external clock. Three internal clocks can be selected, all divided from the system clock (o): o/8, o/64, and o/8192. The falling edge of the selected internal clock triggers the count. When use of an external clock is selected, three types of count can be selected: at the rising edge, the falling edge, and both rising and falling edges. Some functions differ between channel 0 and channel 1. 376 Bit 2 CKS2 0 Bit 1 CKS1 0 Bit 0 CKS0 0 1 Description Clock input disabled Internal clock, counted at falling edge of o/8 Internal clock, counted at falling edge of o/64 Internal clock, counted at falling edge of o/8192 For channel 0: count at TCNT1 overflow signal* For channel 1: count at TCNT0 compare match A* 1 External clock, counted at rising edge External clock, counted at falling edge External clock, counted at both rising and falling edges (Initial value) 1 0 1 1 0 0 1 0 1 Note: * If the count input of channel 0 is the TCNT1 overflow signal and that of channel 1 is the TCNT0 compare match signal, no incrementing clock is generated. Do not use this setting. 10.2.5 Timer Control/Status Registers 0 and 1 (TCSR0, TCSR1) TCSR0 Bit : 7 CMFB 0 R/(W)* 6 CMFA 0 R/(W)* 5 OVF 0 R/(W)* 4 ADTE 0 R/W 3 OS3 0 R/W 2 OS2 0 R/W 1 OS1 0 R/W 0 OS0 0 R/W Initial value: R/W : TCSR1 Bit : 7 CMFB 0 R/(W)* 6 CMFA 0 R/(W)* 5 OVF 0 R/(W)* 4 -- 1 -- 3 OS3 0 R/W 2 OS2 0 R/W 1 OS1 0 R/W 0 OS0 0 R/W Initial value : R/W : Note: * Only 0 can be written to bits 7 to 5, to clear these flags. TCSR0 and TCSR1 are 8-bit registers that display compare match and overflow statuses, and control compare match output. TCSR0 is initialized to H'00, and TCSR1 to H'10, by a reset and in hardware standby mode. 377 Bit 7--Compare Match Flag B (CMFB): Status flag indicating whether the values of TCNT and TCORB match. Bit 7 CMFB 0 Description [Clearing conditions] * * 1 Cleared by reading CMFB when CMFB = 1, then writing 0 to CMFB When DTC is activated by CMIB interrupt while DISEL bit of MRB in DTC is 0 (Initial value) [Setting condition] Set when TCNT matches TCORB Bit 6--Compare Match Flag A (CMFA): Status flag indicating whether the values of TCNT and TCORA match. Bit 6 CMFA 0 Description [Clearing conditions] * * 1 Cleared by reading CMFA when CMFA = 1, then writing 0 to CMFA When DTC is activated by CMIA interrupt while DISEL bit of MRB in DTC is 0 (Initial value) [Setting condition] Set when TCNT matches TCORA Bit 5--Timer Overflow Flag (OVF): Status flag indicating that TCNT has overflowed (changed from H'FF to H'00). Bit 5 OVF 0 Description [Clearing condition] * 1 Cleared by reading OVF when OVF = 1, then writing 0 to OVF (Initial value) [Setting condition] Set when TCNT overflows from H'FF to H'00 378 Bit 4--A/D Trigger Enable (ADTE) (TCSR0 Only): Selects enabling or disabling of A/D converter start requests by compare-match A. In TCSR1, this bit is reserved: it is always read as 1 and cannot be modified. Bit 4 ADTE 0 1 Description A/D converter start requests by compare match A are disabled A/D converter start requests by compare match A are enabled (Initial value) Bits 3 to 0--Output Select 3 to 0 (OS3 to OS0): These bits specify how the timer output level is to be changed by a compare match of TCOR and TCNT. Bits OS3 and OS2 select the effect of compare match B on the output level, bits OS1 and OS0 select the effect of compare match A on the output level, and both of them can be controlled independently. Note, however, that priorities are set such that: toggle output > 1 output > 0 output. If compare matches occur simultaneously, the output changes according to the compare match with the higher priority. Timer output is disabled when bits OS3 to OS0 are all 0. After a reset, the timer output is 0 until the first compare match event occurs. Bit 3 OS3 0 Bit 2 OS2 0 1 1 0 1 Description No change when compare match B occurs 0 is output when compare match B occurs 1 is output when compare match B occurs Output is inverted when compare match B occurs (toggle output) (Initial value) Bit 1 OS1 0 Bit 0 OS0 0 1 Description No change when compare match A occurs 0 is output when compare match A occurs 1 is output when compare match A occurs Output is inverted when compare match A occurs (toggle output) (Initial value) 1 0 1 379 10.2.6 Module Stop Control Register (MSTPCR) MSTPCRH MSTPCRL 10 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 Bit : 15 0 14 0 13 1 12 1 11 1 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W MSTPCR is a 16-bit readable/writable register that performs module stop mode control. When the MSTP12 bit in MSTPCR is set to 1, the 8-bit timer operation stops at the end of the bus cycle and a transition is made to module stop mode. Registers cannot be read or written to in module stop mode. For details, see section 19.5, Module Stop Mode. MSTPCR is initialized to H'3FFF by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 12--Module Stop (MSTP12): Specifies the 8-bit timer stop mode. Bit 12 MSTP12 0 1 Description 8-bit timer module stop mode cleared 8-bit timer module stop mode set (Initial value) 380 10.3 10.3.1 Operation TCNT Incrementation Timing TCNT is incremented by input clock pulses (either internal or external). Internal Clock: Three different internal clock signals (o/8, o/64, or o/8192) divided from the system clock (o) can be selected, by setting bits CKS2 to CKS0 in TCR. Figure 10.2 shows the count timing. o Internal clock Clock input to TCNT TCNT N-1 N N+1 Figure 10.2 Count Timing for Internal Clock Input External Clock: Three incrementation methods can be selected by setting bits CKS2 to CKS0 in TCR: at the rising edge, the falling edge, and both rising and falling edges. Note that the external clock pulse width must be at least 1.5 states for incrementation at a single edge, and at least 2.5 states for incrementation at both edges. The counter will not increment correctly if the pulse width is less than these values. Figure 10.3 shows the timing of incrementation at both edges of an external clock signal. 381 o External clock input Clock input to TCNT TCNT N-1 N N+1 Figure 10.3 Count Timing for External Clock Input 10.3.2 Compare Match Timing Setting of Compare Match Flags A and B (CMFA, CMFB): The CMFA and CMFB flags in TCSR are set to 1 by a compare match signal generated when the TCOR and TCNT values match. The compare match signal is generated at the last state in which the match is true, just before the timer counter is updated. Therefore, when TCOR and TCNT match, the compare match signal is not generated until the next incrementation clock input. Figure 10.4 shows this timing. o TCNT N N+1 TCOR Compare match signal N CMF Figure 10.4 Timing of CMF Setting 382 Timer Output Timing: When compare match A or B occurs, the timer output changes a specified by bits OS3 to OS0 in TCSR. Depending on these bits, the output can remain the same, change to 0, change to 1, or toggle. Figure 10.5 shows the timing when the output is set to toggle at compare match A. o Compare match A signal Timer output pin Figure 10.5 Timing of Timer Output Timing of Compare Match Clear: The timer counter is cleared when compare match A or B occurs, depending on the setting of the CCLR1 and CCLR0 bits in TCR. Figure 10.6 shows the timing of this operation. o Compare match signal TCNT N H'00 Figure 10.6 Timing of Compare Match Clear 383 10.3.3 Timing of External RESET on TCNT TCNT is cleared at the rising edge of an external reset input, depending on the settings of the CCLR1 and CCLR0 bits in TCR. The clear pulse width must be at least 1.5 states. Figure 10.7 shows the timing of this operation. o External reset input pin Clear signal TCNT N-1 N H'00 Figure 10.7 Timing of External Reset 10.3.4 Timing of Overflow Flag (OVF) Setting The OVF in TCSR is set to 1 when the timer count overflows (changes from H'FF to H'00). Figure 10.8 shows the timing of this operation. o TCNT H'FF H'00 Overflow signal OVF Figure 10.8 Timing of OVF Setting 384 10.3.5 Operation with Cascaded Connection If bits CKS2 to CKS0 in either TCR0 or TCR1 are set to B'100, the 8-bit timers of the two channels are cascaded. With this configuration, a single 16-bit timer could be used (16-bit timer mode) or compare matches of the 8-bit channel 0 could be counted by the timer of channel 1 (compare match counter mode). In this case, the timer operates as below. 16-Bit Counter Mode: When bits CKS2 to CKS0 in TCR0 are set to B'100, the timer functions as a single 16-bit timer with channel 0 occupying the upper 8 bits and channel 1 occupying the lower 8 bits. * Setting of compare match flags The CMF flag in TCSR0 is set to 1 when a 16-bit compare match event occurs. The CMF flag in TCSR1 is set to 1 when a lower 8-bit compare match event occurs. * Counter clear specification If the CCLR1 and CCLR0 bits in TCR0 have been set for counter clear at compare match, the 16-bit counter (TCNT0 and TCNT1 together) is cleared when a 16-bit compare match event occurs. The 16-bit counter (TCNT0 and TCNT1 together) is cleared even if counter clear by the TMRI0 pin has also been set. The settings of the CCLR1 and CCLR0 bits in TCR1 are ignored. The lower 8 bits cannot be cleared independently. * Pin output Control of output from the TMO0 pin by bits OS3 to OS0 in TCSR0 is in accordance with the 16-bit compare match conditions. Control of output from the TMO1 pin by bits OS3 to OS0 in TCSR1 is in accordance with the lower 8-bit compare match conditions. Compare Match Counter Mode: When bits CKS2 to CKS0 in TCR1 are B'100, TCNT1 counts compare match A's for channel 0. Channels 0 and 1 are controlled independently. Conditions such as setting of the CMF flag, generation of interrupts, output from the TMO pin, and counter clear are in accordance with the settings for each channel. Note on Usage: If the 16-bit counter mode and compare match counter mode are set simultaneously, the input clock pulses for TCNT0 and TCNT1 are not generated and thus the counters will stop operating. Software should therefore avoid using both these modes. 385 10.4 10.4.1 Interrupts Interrupt Sources and DTC Activation There are three 8-bit timer interrupt sources: CMIA, CMIB, and OVI. Their relative priorities are shown in Table 10.3. Each interrupt source is set as enabled or disabled by the corresponding interrupt enable bit in TCR, and independent interrupt requests are sent for each to the interrupt controller. It is also possible to activate the DTC by means of CMIA and CMIB interrupts. Table 10.3 8-Bit Timer Interrupt Sources Interrupt Source CMIA0 CMIB0 OVI0 CMIA1 CMIB1 OVI1 Description Interrupt by CMFA Interrupt by CMFB Interrupt by OVF Interrupt by CMFA Interrupt by CMFB Interrupt by OVF DTC Activation Possible Possible Not possible Possible Possible Not possible Low Priority High Note: This table shows the initial state immediately after a reset. The relative channel priorities can be changed by the interrupt controller. 10.4.2 A/D Converter Activation The A/D converter can be activated only by channel 0 compare match A. If the ADTE bit in TCSR0 is set to 1 when the CMFA flag is set to 1 by the occurrence of channel 0 compare match A, a request to start A/D conversion is sent to the A/D converter. If the 8-bit timer conversion start trigger has been selected on the A/D converter side at this time, A/D conversion is started. 10.5 Sample Application In the example below, the 8-bit timer is used to generate a pulse output with a selected duty cycle, as shown in figure 10.9. The control bits are set as follows: [1] In TCR, bit CCLR1 is cleared to 0 and bit CCLR0 is set to 1 so that the timer counter is cleared when its value matches the constant in TCORA. [2] In TCSR, bits OS3 to OS0 are set to B'0110, causing the output to change to 1 at a TCORA compare match and to 0 at a TCORB compare match. With these settings, the 8-bit timer provides output of pulses at a rate determined by TCORA with a pulse width determined by TCORB. No software intervention is required. 386 TCNT H'FF TCORA TCORB H'00 Counter clear TMO Figure 10.9 Example of Pulse Output 387 10.6 Usage Notes Application programmers should note that the following kinds of contention can occur in the 8-bit timer. 10.6.1 Contention between TCNT Write and Clear If a timer counter clock pulse is generated during the T2 state of a TCNT write cycle, the clear takes priority, so that the counter is cleared and the write is not performed. Figure 10.10 shows this operation. TCNT write cycle by CPU T1 T2 o Address TCNT address Internal write signal Counter clear signal TCNT N H'00 Figure 10.10 Contention between TCNT Write and Clear 388 10.6.2 Contention between TCNT Write and Increment If a timer counter clock pulse is generated during the T2 state of a TCNT write cycle, the write takes priority and the counter is not incremented. Figure 10.11 shows this operation. TCNT write cycle by CPU T1 T2 o Address TCNT address Internal write signal TCNT input clock TCNT N M Counter write data Figure 10.11 Contention between TCNT Write and Increment 389 10.6.3 Contention between TCOR Write and Compare Match During the T 2 state of a TCOR write cycle, the TCOR write has priority and the compare match signal is disabled even if a compare match event occurs. Figure 10.12 shows this operation. TCOR write cycle by CPU T1 T2 o Address TCOR address Internal write signal TCNT N N+1 TCOR N M TCOR write data Compare match signal Disabled Figure 10.12 Contention between TCOR Write and Compare Match 390 10.6.4 Contention between Compare Matches A and B If compare match events A and B occur at the same time, the 8-bit timer operates in accordance with the priorities for the output statuses set for compare match A and compare match B, as shown in table 10.4. Table 10.4 Timer Output Priorities Output Setting Toggle output 1 output 0 output No change Low Priority High 10.6.5 Switching of Internal Clocks and TCNT Operation TCNT may increment erroneously when the internal clock is switched over. Table 10.5 shows the relationship between the timing at which the internal clock is switched (by writing to the CKS1 and CKS0 bits) and the TCNT operation. When the TCNT clock is generated from an internal clock, the falling edge of the internal clock pulse is detected. If clock switching causes a change from high to low level, as shown in case 3 in table 10.5, a TCNT clock pulse is generated on the assumption that the switchover is a falling edge. This increments TCNT. The erroneous incrementation can also happen when switching between internal and external clocks. 391 Table 10.5 Switching of Internal Clock and TCNT Operation Timing of Switchover by Means of CKS1 and CKS0 Bits TCNT Clock Operation Switching from low to low*1 Clock before switchover Clock after switchover TCNT clock No. 1 TCNT N CKS bit write N+1 2 Switching from low to high*2 Clock before switchover Clock after switchover TCNT clock TCNT N N+1 N+2 CKS bit write 3 Switching from high to low*3 Clock before switchover Clock after switchover *4 TCNT clock TCNT N N+1 CKS bit write N+2 392 Table 10.5 Switching of Internal Clock and TCNT Operation (cont) Timing of Switchover by Means of CKS1 and CKS0 Bits TCNT Clock Operation Switching from high to high Clock before switchover Clock after switchover TCNT clock No. 4 TCNT N N+1 N+2 CKS bit write Notes: 1. 2. 3. 4. Includes switching from low to stop, and from stop to low. Includes switching from stop to high. Includes switching from high to stop. Generated on the assumption that the switchover is a falling edge; TCNT is incremented. 10.6.6 Usage Note Interrupts and Module Stop Mode: If module stop mode is entered when an interrupt has been requested, it will not be possible to clear the CPU interrupt source or DTC activation source. Interrupts should therefore be disabled before entering module stop mode. 393 Section 11 Watchdog Timer 11.1 Overview The H8S/2345 Series has a single-channel on-chip watchdog timer (WDT) for monitoring system operation. The WDT outputs an overflow signal (WDTOVF)* if a system crash prevents the CPU from writing to the timer counter, allowing it to overflow. At the same time, the WDT can also generate an internal reset signal for the H8S/2345 Series. When this watchdog function is not needed, the WDT can be used as an interval timer. In interval timer operation, an interval timer interrupt is generated each time the counter overflows. 11.1.1 Features WDT features are listed below. * Switchable between watchdog timer mode and interval timer mode * WDTOVF output* when in watchdog timer mode If the counter overflows, the WDT outputs WDTOVF.* It is possible to select whether or not the entire H8S/2345 Series is reset at the same time. This internal reset can be a power-on reset or a manual reset. * Interrupt generation when in interval timer mode If the counter overflows, the WDT generates an interval timer interrupt. * Choice of eight counter clock sources. Note: * The WDTOVF pin function is not supported by the F-ZTAT version. 395 11.1.2 Block Diagram Figure 11.1 shows a block diagram of the WDT. Overflow WOVI (interrupt request signal) Interrupt control Clock Clock select WDTOVF *2 Internal reset signal*1 Reset control o/2 o/64 o/128 o/512 o/2048 o/8192 o/32768 o/131072 Internal clock sources Internal bus RSTCSR TCNT TSCR Module bus Bus interface WDT Legend : Timer control/status register TCSR : Timer counter TCNT RSTCSR : Reset control/status register Notes: 1. The type of internal reset signal depends on a register setting. Either power-on reset or manual reset can be selected. 2. The WDTOVF pin function is not supported by the F-ZTAT version. Figure 11.1 Block Diagram of WDT 396 11.1.3 Pin Configuration Table 11.1 describes the WDT output pin. Table 11.1 WDT Pin Name Watchdog timer overflow Symbol I/O Function Outputs counter overflow signal in watchdog timer mode WDTOVF* Output Note: * The WDTOVF pin function is not supported by the F-ZTAT version. 11.1.4 Register Configuration The WDT has three registers, as summarized in table 11.2. These registers control clock selection, WDT mode switching, and the reset signal. Table 11.2 WDT Registers Address*1 Name Timer control/status register Timer counter Reset control/status register Abbreviation TCSR TCNT RSTCSR R/W R/(W)* R/W R/(W)* 3 3 Initial Value H'18 H'00 H'1F Write*2 H'FFBC H'FFBC H'FFBE Read H'FFBC H'FFBD H'FFBF Notes: 1. Lower 16 bits of the address. 2. For details of write operations, see section 11.2.4, Notes on Register Access. 3. Only a write of 0 is permitted to bit 7, to clear the flag. 397 11.2 11.2.1 Bit Register Descriptions Timer Counter (TCNT) : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Initial value : R/W : TCNT is an 8-bit readable/writable*1 up-counter. When the TME bit is set to 1 in TCSR, TCNT starts counting pulses generated from the internal clock source selected by bits CKS2 to CKS0 in TCSR. When the count overflows (changes from H'FF to H'00), either the watchdog timer overflow signal (WDTOVF)*2 or an interval timer interrupt (WOVI) is generated, depending on the mode selected by the WT/IT bit in TCSR. TCNT is initialized to H'00 by a reset, in hardware standby mode, or when the TME bit is cleared to 0. It is not initialized in software standby mode. Note: 1. The method for writing to TCNT is different from that for general registers to prevent inadvertent overwriting. For details see section 11.2.4, Notes on Register Access. 2. The WDTOVF pin function is not supported by the F-ZTAT version. 11.2.2 Bit Timer Control/Status Register (TCSR) : 7 OVF 0 R/(W)* 6 WT/IT 0 R/W 5 TME 0 R/W 4 -- 1 -- 3 -- 1 -- 2 CKS2 0 R/W 1 CKS1 0 R/W 0 CKS0 0 R/W Initial value : R/W : Note: * Can only be written with 0 for flag clearing. TCSR is an 8-bit readable/writable* register. Its functions include selecting the clock source to be input to TCNT, and the timer mode. TCR is initialized to H'18 by a reset and in hardware standby mode. It is not initialized in software standby mode. Note: * The method for writing to TCSR is different from that for general registers to prevent inadvertent overwriting. For details see section 11.2.4, Notes on Register Access. 398 Bit 7--Overflow Flag (OVF): Indicates that TCNT has overflowed from H'FF to H'00, when in interval timer mode. This flag cannot be set during watchdog timer operation. Bit 7 OVF 0 Description [Clearing condition] Cleared by reading TCSR when OVF = 1, then writing 0 to OVF 1 [Setting condition] Set when TCNT overflows (changes from H'FF to H'00) in interval timer mode (Initial value) Bit 6--Timer Mode Select (WT/IT): Selects whether the WDT is used as a watchdog timer or interval timer. If used as an interval timer, the WDT generates an interval timer interrupt request (WOVI) when TCNT overflows. If used as a watchdog timer, the WDT generates the WDTOVF signal* when TCNT overflows. Note: * The WDTOVF pin function is not supported by the F-ZTAT version. Bit 6 WT/IT 0 1 Description Interval timer: Sends the CPU an interval timer interrupt request (WOVI) when TCNT overflows (Initial value) Watchdog timer: Generates the WDTOVF signal*1 when TCNT overflows*2 Notes: 1. The WDTOVF pin function is not supported by the F-ZTAT version. 2. For details of the case where TCNT overflows in watchdog timer mode, see section 11.2.3, Reset Control/Status Register (RSTCSR). Bit 5--Timer Enable (TME): Selects whether TCNT runs or is halted. Bit 5 TME 0 1 Description TCNT is initialized to H'00 and halted TCNT counts (Initial value) Bits 4 and 3--Reserved: Read-only bits, always read as 1. 399 Bits 2 to 0: Clock Select 2 to 0 (CKS2 to CKS0): These bits select one of eight internal clock sources, obtained by dividing the system clock (o), for input to TCNT. Bit 2 CKS2 0 Bit 1 CKS1 0 Bit 0 CKS0 0 1 1 0 1 1 0 0 1 1 0 1 Description Clock o/2 (initial value) o/64 o/128 o/512 o/2048 o/8192 o/32768 o/131072 Overflow Period (when o = 20 MHz)* 25.6 s 819.2 s 1.6 ms 6.6 ms 26.2 ms 104.9 ms 419.4 ms 1.68 s Note: * The overflow period is the time from when TCNT starts counting up from H'00 until overflow occurs. 11.2.3 Bit Reset Control/Status Register (RSTCSR) : 7 WOVF 0 R/(W)* 6 RSTE 0 R/W 5 RSTS 0 R/W 4 -- 1 -- 3 -- 1 -- 2 -- 1 -- 1 -- 1 -- 0 -- 1 -- Initial value: R/W : Note: * Can only be written with 0 for flag clearing. RSTCSR is an 8-bit readable/writable* register that controls the generation of the internal reset signal when TCNT overflows, and selects the type of internal reset signal. RSTCSR is initialized to H'1F by a reset signal from the RES pin, but not by the WDT internal reset signal caused by overflows. Note: * The method for writing to RSTCSR is different from that for general registers to prevent inadvertent overwriting. For details see section 11.2.4, Notes on Register Access. 400 Bit 7--Watchdog Overflow Flag (WOVF): Indicates that TCNT has overflowed (changed from H'FF to H'00) during watchdog timer operation. This bit is not set in interval timer mode. Bit 7 WOVF 0 Description [Clearing condition] Cleared by reading TCSR when WOVF = 1, then writing 0 to WOVF 1 [Setting condition] Set when TCNT overflows (changed from H'FF to H'00) during watchdog timer operation (Initial value) Bit 6--Reset Enable (RSTE): Specifies whether or not a reset signal is generated in the H8S/2345 Series if TCNT overflows during watchdog timer operation. Bit 6 RSTE 0 1 Description Reset signal is not generated if TCNT overflows* Reset signal is generated if TCNT overflows (Initial value) Note: * The modules within the H8S/2345 Series are not reset, but TCNT and TCSR within the WDT are reset. Bit 5--Reset Select (RSTS): Selects the type of internal reset generated if TCNT overflows during watchdog timer operation. For details of the types of resets, see section 4, Exception Handling. Bit 5 RSTS 0 1 Description Power-on reset Manual reset (Initial value) Bits 4 to 0--Reserved: Read-only bits, always read as 1. 401 11.2.4 Notes on Register Access The watchdog timer's TCNT, TCSR, and RSTCSR registers differ from other registers in being more difficult to write to. The procedures for writing to and reading these registers are given below. Writing to TCNT and TCSR: These registers must be written to by a word transfer instruction. They cannot be written to with byte instructions. Figure 11.2 shows the format of data written to TCNT and TCSR. TCNT and TCSR both have the same write address. For a write to TCNT, the upper byte of the written word must contain H'5A and the lower byte must contain the write data. For a write to TCSR, the upper byte of the written word must contain H'A5 and the lower byte must contain the write data. This transfers the write data from the lower byte to TCNT or TCSR. TCNT write 15 Address: H'FFBC H'5A 87 Write data 0 TCSR write 15 Address: H'FFBC H'A5 87 Write data 0 Figure 11.2 Format of Data Written to TCNT and TCSR 402 Writing to RSTCSR: RSTCSR must be written to by word transfer instruction to address H'FFBE. It cannot be written to with byte instructions. Figure 11.3 shows the format of data written to RSTCSR. The method of writing 0 to the WOVF bit differs from that for writing to the RSTE and RSTS bits. To write 0 to the WOVF bit, the write data must have H'A5 in the upper byte and H'00 in the lower byte. This clears the WOVF bit to 0, but has no effect on the RSTE and RSTS bits. To write to the RSTE and RSTS bits, the upper byte must contain H'5A and the lower byte must contain the write data. This writes the values in bits 6 and 5 of the lower byte into the RSTE and RSTS bits, but has no effect on the WOVF bit. Writing 0 to WOVF bit 15 Address: H'FFBE H'A5 87 H'00 0 Writing to RSTE and RSTS bits 15 Address: H'FFBE H'5A 87 Write data 0 Figure 11.3 Format of Data Written to RSTCSR Reading TCNT, TCSR, and RSTCSR: These registers are read in the same way as other registers. The read addresses are H'FFBC for TCSR, H'FFBD for TCNT, and H'FFBF for RSTCSR. 403 11.3 11.3.1 Operation Watchdog Timer Operation To use the WDT as a watchdog timer, set the WT/IT and TME bits to 1. Software must prevent TCNT overflows by rewriting the TCNT value (normally be writing H'00) before overflows occurs. This ensures that TCNT does not overflow while the system is operating normally. If TCNT overflows without being rewritten because of a system crash or other error, the WDTOVF signal* is output. This is shown in figure 11.4. This WDTOVF signal* can be used to reset the system. The WDTOVF signal* is output for 132 states when RSTE = 1, and for 130 states when RSTE = 0. If TCNT overflows when 1 is set in the RSTE bit in RSTCSR, a signal that resets the H8S/2345 Series internally is generated at the same time as the WDTOVF signal*. This reset can be selected as a power-on reset or a manual reset, depending on the setting of the RSTS bit in RSTCSR. The internal reset signal is output for 518 states. If a reset caused by a signal input to the RES pin occurs at the same time as a reset caused by a WDT overflow, the RES pin reset has priority and the WOVF bit in RSTCSR is cleared to 0. Note: * The WDTOVF pin function is not supported by the F-ZTAT version. 404 TCNT count Overflow H'FF H'00 WT/IT = 1 TME = 1 H'00 written to TCNT WOVF=1 WDTOVF *3 and internal reset are generated WT/IT = 1 H'00 written TME = 1 to TCNT Time WDTOVF signal*3 132 states*2 Internal reset signal*1 518 states Legend WT/IT : Timer mode select bit TME : Timer enable bit Notes: 1. The internal reset signal is generated only if the RSTE bit is set to 1. 2. 130 states when the RSTE bit is cleared to 0. 3. The WDTOVF pin function is not supported by the F-ZTAT version. Figure 11.4 Watchdog Timer Operation 405 11.3.2 Interval Timer Operation To use the WDT as an interval timer, clear the WT/IT bit in TCSR to 0 and set the TME bit to 1. An interval timer interrupt (WOVI) is generated each time TCNT overflows, provided that the WDT is operating as an interval timer, as shown in figure 11.5. This function can be used to generate interrupt requests at regular intervals. TCNT count H'FF Overflow Overflow Overflow Overflow H'00 WT/IT=0 TME=1 WOVI WOVI WOVI WOVI Time Legend WOVI: Interval timer interrupt request generation Figure 11.5 Interval Timer Operation 11.3.3 Timing of Setting Overflow Flag (OVF) The OVF flag is set to 1 if TCNT overflows during interval timer operation. At the same time, an interval timer interrupt (WOVI) is requested. This timing is shown in figure 11.6. 406 o TCNT H'FF H'00 Overflow signal (internal signal) OVF Figure 11.6 Timing of Setting of OVF 11.3.4 Timing of Setting of Watchdog Timer Overflow Flag (WOVF) The WOVF flag is set to 1 if TCNT overflows during watchdog timer operation. At the same time, the WDTOVF signal* goes low. If TCNT overflows while the RSTE bit in RSTCSR is set to 1, an internal reset signal is generated for the entire H8S/2345 Series chip. Figure 11.7 shows the timing in this case. Note: * The WDTOVF pin function is not supported by the F-ZTAT version. o TCNT H'FF H'00 Overflow signal (internal signal) WOVF WDTOVF signal* 132 states Internal reset signal 518 states Note: * The WDTOVF pin function is not supported by the F-ZTAT version. Figure 11.7 Timing of Setting of WOVF 407 11.4 Interrupts During interval timer mode operation, an overflow generates an interval timer interrupt (WOVI). The interval timer interrupt is requested whenever the OVF flag is set to 1 in TCSR. 11.5 11.5.1 Usage Notes Contention between Timer Counter (TCNT) Write and Increment If a timer counter clock pulse is generated during the T2 state of a TCNT write cycle, the write takes priority and the timer counter is not incremented. Figure 11.8 shows this operation. TCNT write cycle T1 T2 o Address Internal write signal TCNT input clock TCNT N M Counter write data Figure 11.8 Contention between TCNT Write and Increment 11.5.2 Changing Value of CKS2 to CKS0 If bits CKS2 to CKS0 in TCSR are written to while the WDT is operating, errors could occur in the incrementation. Software must stop the watchdog timer (by clearing the TME bit to 0) before changing the value of bits CKS2 to CKS0. 408 11.5.3 Switching between Watchdog Timer Mode and Interval Timer Mode If the mode is switched from watchdog timer to interval timer, or vice versa, while the WDT is operating, errors could occur in the incrementation. Software must stop the watchdog timer (by clearing the TME bit to 0) before switching the mode. 11.5.4 System Reset by WDTOVF Signal If the WDTOVF output signal* is input to the RES pin of the H8S/2345 Series, the H8S/2345 Series will not be initialized correctly. Make sure that the WDTOVF signal* is not input logically to the RES pin. To reset the entire system by means of the WDTOVF signal*, use the circuit shown in figure 11.9. Note: * The WDTOVF pin function is not supported by the F-ZTAT version. H8S/2345 Reset input RES Reset signal to entire system WDTOVF * Note: * The WDTOVF pin function is not supported by the F-ZTAT version. Figure 11.9 Circuit for System Reset by WDTOVF Signal (Example) 11.5.5 Internal Reset in Watchdog Timer Mode The H8S/2345 Series is not reset internally if TCNT overflows while the RSTE bit is cleared to 0 during watchdog timer operation, but TCNT and TSCR of the WDT are reset. TCNT, TCSR, and RSTCR cannot be written to while the WDTOVF signal* is low. Also note that a read of the WOVF flag is not recognized during this period. To clear the WOVF flag, therefore, read TCSR after the WDTOVF signal* goes high, then write 0 to the WOVF flag. Note: * The WDTOVF pin function is not supported by the F-ZTAT version. 409 Section 12 Serial Communication Interface (SCI) 12.1 Overview The H8S/2345 Series is equipped with a 2-channel serial communication interface (SCI). Both channels have the same functions. The SCI can handle both asynchronous and clocked synchronous serial communication. A function is also provided for serial communication between processors (multiprocessor communication function). 12.1.1 Features SCI features are listed below. * Choice of asynchronous or clocked synchronous serial communication mode Asynchronous mode Serial data communication executed using asynchronous system in which synchronization is achieved character by character Serial data communication can be carried out with standard asynchronous communication chips such as a Universal Asynchronous Receiver/Transmitter (UART) or Asynchronous Communication Interface Adapter (ACIA) A multiprocessor communication function is provided that enables serial data communication with a number of processors Choice of 12 serial data transfer formats Data length : 7 or 8 bits Stop bit length : 1 or 2 bits Parity : Even, odd, or none Multiprocessor bit : 1 or 0 Receive error detection : Parity, overrun, and framing errors Break detection : Break can be detected by reading the RxD pin level directly in case of a framing error Clocked Synchronous mode Serial data communication synchronized with a clock Serial data communication can be carried out with other chips that have a synchronous communication function One serial data transfer format Data length : 8 bits Receive error detection : Overrun errors detected 411 * Full-duplex communication capability The transmitter and receiver are mutually independent, enabling transmission and reception to be executed simultaneously Double-buffering is used in both the transmitter and the receiver, enabling continuous transmission and continuous reception of serial data * On-chip baud rate generator allows any bit rate to be selected * Choice of serial clock source: internal clock from baud rate generator or external clock from SCK pin * Four interrupt sources Four interrupt sources -- transmit-data-empty, transmit-end, receive-data-full, and receive error -- that can issue requests independently The transmit-data-empty interrupt and receive data full interrupts can activate the data transfer controller (DTC) to execute data transfer * Choice of LSB-first or MSB-first transfer Can be selected regardless of the communication mode* (except in the case of asynchronous mode bit data) * Module stop mode can be set As the initial setting, SCI operation is halted. Register access is enabled by exiting module stop mode. Note: * Descriptions in this section refer to LSB-first transfer. 412 12.1.2 Block Diagram Figure 12.1 shows a block diagram of the SCI. Bus interface Module data bus Internal data bus RDR TDR RxD RSR TSR SCMR SSR SCR SMR Transmission/ reception control BRR o Baud rate generator o/4 o/16 o/64 Clock TxD Parity generation Parity check SCK External clock TEI TXI RXI ERI Legend SCMR RSR RDR TSR TDR SMR SCR SSR BRR : Smart Card mode register : Receive shift register : Receive data register : Transmit shift register : Transmit data register : Serial mode register : Serial control register : Serial status register : Bit rate register Figure 12.1 Block Diagram of SCI 413 12.1.3 Pin Configuration Table 12.1 shows the serial pins for each SCI channel. Table 12.1 SCI Pins Channel 0 Pin Name Serial clock pin 0 Receive data pin 0 Transmit data pin 0 1 Serial clock pin 1 Receive data pin 1 Transmit data pin 1 Symbol SCK0 RxD0 TxD0 SCK1 RxD1 TxD1 I/O I/O Input Output I/O Input Output Function SCI0 clock input/output SCI0 receive data input SCI0 transmit data output SCI1 clock input/output SCI1 receive data input SCI1 transmit data output 414 12.1.4 Register Configuration The SCI has the internal registers shown in table 12.2. These registers are used to specify asynchronous mode or clocked synchronous mode, the data format , and the bit rate, and to control transmitter/receiver. Table 12.2 SCI Registers Channel 0 Name Serial mode register 0 Bit rate register 0 Serial control register 0 Transmit data register 0 Serial status register 0 Receive data register 0 Abbreviation SMR0 BRR0 SCR0 TDR0 SSR0 RDR0 R/W R/W R/W R/W R/W R/(W)* R R/W R/W R/W R/W R/W R/(W)* R R/W R/W 2 2 Initial Value H'00 H'FF H'00 H'FF H'84 H'00 H'F2 H'00 H'FF H'00 H'FF H'84 H'00 H'F2 H'3FFF Address*1 H'FF78 H'FF79 H'FF7A H'FF7B H'FF7C H'FF7D H'FF7E H'FF80 H'FF81 H'FF82 H'FF83 H'FF84 H'FF85 H'FF86 H'FF3C Smart card mode register 0 SCMR0 1 Serial mode register 1 Bit rate register 1 Serial control register 1 Transmit data register 1 Serial status register 1 Receive data register 1 SMR1 BRR1 SCR1 TDR1 SSR1 RDR1 Smart card mode register 1 SCMR1 All Module stop control register MSTPCR Notes: 1. Lower 16 bits of the address. 2. Can only be written with 0 for flag clearing. 415 12.2 12.2.1 Bit R/W Register Descriptions Receive Shift Register (RSR) : : 7 -- 6 -- 5 -- 4 -- 3 -- 2 -- 1 -- 0 -- RSR is a register used to receive serial data. The SCI sets serial data input from the RxD pin in RSR in the order received, starting with the LSB (bit 0), and converts it to parallel data. When one byte of data has been received, it is transferred to RDR automatically. RSR cannot be directly read or written to by the CPU. 12.2.2 Bit Receive Data Register (RDR) : 7 0 R 6 0 R 5 0 R 4 0 R 3 0 R 2 0 R 1 0 R 0 0 R Initial value : R/W : RDR is a register that stores received serial data. When the SCI has received one byte of serial data, it transfers the received serial data from RSR to RDR where it is stored, and completes the receive operation. After this, RSR is receive-enabled. Since RSR and RDR function as a double buffer in this way, enables continuous receive operations to be performed. RDR is a read-only register, and cannot be written to by the CPU. RDR is initialized to H'00 by a reset, and in standby mode or module stop mode. 416 12.2.3 Bit R/W Transmit Shift Register (TSR) : : 7 -- 6 -- 5 -- 4 -- 3 -- 2 -- 1 -- 0 -- TSR is a register used to transmit serial data. To perform serial data transmission, the SCI first transfers transmit data from TDR to TSR, then sends the data to the TxD pin starting with the LSB (bit 0). When transmission of one byte is completed, the next transmit data is transferred from TDR to TSR, and transmission started, automatically. However, data transfer from TDR to TSR is not performed if the TDRE bit in SSR is set to 1. TSR cannot be directly read or written to by the CPU. 12.2.4 Bit Transmit Data Register (TDR) : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W 3 1 R/W 2 1 R/W 1 1 R/W 0 1 R/W Initial value : R/W : TDR is an 8-bit register that stores data for serial transmission. When the SCI detects that TSR is empty, it transfers the transmit data written in TDR to TSR and starts serial transmission. Continuous serial transmission can be carried out by writing the next transmit data to TDR during serial transmission of the data in TSR. TDR can be read or written to by the CPU at all times. TDR is initialized to H'FF by a reset, and in standby mode or module stop mode. 417 12.2.5 Bit Serial Mode Register (SMR) : 7 C/A 0 R/W 6 CHR 0 R/W 5 PE 0 R/W 4 O/E 0 R/W 3 STOP 0 R/W 2 MP 0 R/W 1 CKS1 0 R/W 0 CKS0 0 R/W Initial value : R/W : SMR is an 8-bit register used to set the SCI's serial transfer format and select the baud rate generator clock source. SMR can be read or written to by the CPU at all times. SMR is initialized to H'00 by a reset, and in standby mode or module stop mode. Bit 7--Communication Mode (C/A): Selects asynchronous mode or clocked synchronous mode as the SCI operating mode. Bit 7 C/A 0 1 Description Asynchronous mode Clocked synchronous mode (Initial value) Bit 6--Character Length (CHR): Selects 7 or 8 bits as the data length in asynchronous mode. In clocked synchronous mode, a fixed data length of 8 bits is used regardless of the CHR setting. Bit 6 CHR 0 1 Description 8-bit data 7-bit data* (Initial value) Note: * When 7-bit data is selected, the MSB (bit 7) of TDR is not transmitted, and it is not possible to choose between LSB-first or MSB-first transfer. 418 Bit 5--Parity Enable (PE): In asynchronous mode, selects whether or not parity bit addition is performed in transmission, and parity bit checking in reception. In clocked synchronous mode, parity bit addition and checking is not performed, regardless of the PE bit setting. Bit 5 PE 0 1 Description Parity bit addition and checking disabled Parity bit addition and checking enabled* (Initial value) Note:* When the PE bit is set to 1, the parity (even or odd) specified by the O/E bit is added to transmit data before transmission. In reception, the parity bit is checked for the parity (even or odd) specified by the O/E bit. Bit 4--Parity Mode (O/E): Selects either even or odd parity for use in parity addition and checking. The O/E bit setting is only valid when the PE bit is set to 1, enabling parity bit addition and checking, in asynchronous mode. The O/E bit setting is invalid in clocked synchronous mode, and when parity addition and checking is disabled in asynchronous mode. Bit 4 O/E 0 1 Description Even parity*1 Odd parity* 2 (Initial value) Notes: 1. When even parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is even. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is even. 2. When odd parity is set, parity bit addition is performed in transmission so that the total number of 1 bits in the transmit character plus the parity bit is odd. In reception, a check is performed to see if the total number of 1 bits in the receive character plus the parity bit is odd. 419 Bit 3--Stop Bit Length (STOP): Selects 1 or 2 bits as the stop bit length in asynchronous mode. The STOP bits setting is only valid in asynchronous mode. If clocked synchronous mode is set the STOP bit setting is invalid since stop bits are not added. Bit 3 STOP 0 1 Description 1 stop bit: In transmission, a single 1 bit (stop bit) is added to the end of each transmitted character before it is sent (Initial value) 2 stop bits: In transmission, two 1 bits (stop bits) are added to the end of each transmitted character before it is sent In reception, only the first stop bit is checked, regardless of the STOP bit setting. If the second stop bit is 1, it is treated as a stop bit; if it is 0, it is treated as the start bit of the next transmit character. Bit 2--Multiprocessor Mode (MP): Selects multiprocessor format. When multiprocessor format is selected, the PE bit and O/E bit parity settings are invalid. The MP bit setting is only valid in asynchronous mode; it is invalid in clocked synchronous mode. For details of the multiprocessor communication function, see section 12.3.3, Multiprocessor Communication Function. Bit 2 MP 0 1 Description Multiprocessor function disabled Multiprocessor format selected (Initial value) Bits 1 and 0--Clock Select 1 and 0 (CKS1, CKS0): These bits select the clock source for the baud rate generator. The clock source can be selected from o, o/4, o/16, and o/64, according to the setting of bits CKS1 and CKS0. For the relation between the clock source, the bit rate register setting, and the baud rate, see section 12.2.8, Bit Rate Register. Bit 1 CKS1 0 Bit 0 CKS0 0 1 1 0 1 Description o clock o/4 clock o/16 clock o/64 clock (Initial value) 420 12.2.6 Bit Serial Control Register (SCR) : 7 TIE 0 R/W 6 RIE 0 R/W 5 TE 0 R/W 4 RE 0 R/W 3 MPIE 0 R/W 2 TEIE 0 R/W 1 CKE1 0 R/W 0 CKE0 0 R/W Initial value : R/W : SCR is a register that performs enabling or disabling of SCI transfer operations, serial clock output in asynchronous mode, and interrupt requests, and selection of the serial clock source. SCR can be read or written to by the CPU at all times. SCR is initialized to H'00 by a reset, and in standby mode or module stop mode. Bit 7--Transmit Interrupt Enable (TIE): Enables or disables transmit data empty interrupt (TXI) request generation when serial transmit data is transferred from TDR to TSR and the TDRE flag in SSR is set to 1. Bit 7 TIE 0 1 Description Transmit data empty interrupt (TXI) requests disabled* Transmit data empty interrupt (TXI) requests enabled (Initial value) Note:* TXI interrupt request cancellation can be performed by reading 1 from the TDRE flag, then clearing it to 0, or clearing the TIE bit to 0. Bit 6--Receive Interrupt Enable (RIE): Enables or disables receive data full interrupt (RXI) request and receive error interrupt (ERI) request generation when serial receive data is transferred from RSR to RDR and the RDRF flag in SSR is set to 1. Bit 6 RIE 0 1 Description Receive data full interrupt (RXI) request and receive error interrupt (ERI) request disabled* (Initial value) Receive data full interrupt (RXI) request and receive error interrupt (ERI) request enabled Note:* RXI and ERI interrupt request cancellation can be performed by reading 1 from the RDRF flag, or the FER, PER, or ORER flag, then clearing the flag to 0, or clearing the RIE bit to 0. 421 Bit 5--Transmit Enable (TE): Enables or disables the start of serial transmission by the SCI. Bit 5 TE 0 1 Description Transmission disabled*1 Transmission enabled* 2 (Initial value) Notes: 1. The TDRE flag in SSR is fixed at 1. 2. In this state, serial transmission is started when transmit data is written to TDR and the TDRE flag in SSR is cleared to 0. SMR setting must be performed to decide the transfer format before setting the TE bit to 1. Bit 4--Receive Enable (RE): Enables or disables the start of serial reception by the SCI. Bit 4 RE 0 1 Description Reception disabled*1 Reception enabled* 2 (Initial value) Notes: 1. Clearing the RE bit to 0 does not affect the RDRF, FER, PER, and ORER flags, which retain their states. 2. Serial reception is started in this state when a start bit is detected in asynchronous mode or serial clock input is detected in clocked synchronous mode. SMR setting must be performed to decide the transfer format before setting the RE bit to 1. 422 Bit 3--Multiprocessor Interrupt Enable (MPIE): Enables or disables multiprocessor interrupts. The MPIE bit setting is only valid in asynchronous mode when the MP bit in SMR is set to 1. The MPIE bit setting is invalid in clocked synchronous mode or when the MP bit is cleared to 0. Bit 3 MPIE 0 Description Multiprocessor interrupts disabled (normal reception performed) [Clearing conditions] * * 1 When the MPIE bit is cleared to 0 When MPB= 1 data is received (Initial value) Multiprocessor interrupts enabled* Receive interrupt (RXI) requests, receive error interrupt (ERI) requests, and setting of the RDRF, FER, and ORER flags in SSR are disabled until data with the multiprocessor bit set to 1 is received. Note: * When receive data including MPB = 0 is received, receive data transfer from RSR to RDR, receive error detection, and setting of the RDRF, FER, and ORER flags in SSR , is not performed. When receive data including MPB = 1 is received, the MPB bit in SSR is set to 1, the MPIE bit is cleared to 0 automatically, and generation of RXI and ERI interrupts (when the TIE and RIE bits in SCR are set to 1) and FER and ORER flag setting is enabled. Bit 2--Transmit End Interrupt Enable (TEIE): Enables or disables transmit end interrupt (TEI) request generation when there is no valid transmit data in TDR in MSB data transmission. Bit 2 TEIE 0 1 Description Transmit end interrupt (TEI) request disabled* Transmit end interrupt (TEI) request enabled* (Initial value) Note: * TEI cancellation can be performed by reading 1 from the TDRE flag in SSR, then clearing it to 0 and clearing the TEND flag to 0, or clearing the TEIE bit to 0. 423 Bits 1 and 0--Clock Enable 1 and 0 (CKE1, CKE0): These bits are used to select the SCI clock source and enable or disable clock output from the SCK pin. The combination of the CKE1 and CKE0 bits determines whether the SCK pin functions as an I/O port, the serial clock output pin, or the serial clock input pin. The setting of the CKE0 bit, however, is only valid for internal clock operation (CKE1 = 0) in asynchronous mode. The CKE0 bit setting is invalid in clocked synchronous mode, and in the case of external clock operation (CKE1 = 1). Note that the SCI's operating mode must be decided using SMR before setting the CKE1 and CKE0 bits. For details of clock source selection, see table 12.9 in section 12.3, Operation. Bit 1 CKE1 0 Bit 0 CKE0 0 Description Asynchronous mode Clocked synchronous mode 1 Asynchronous mode Clocked synchronous mode 1 0 Asynchronous mode Clocked synchronous mode 1 Asynchronous mode Clocked synchronous mode Internal clock/SCK pin functions as I/O port*1 Internal clock/SCK pin functions as serial clock output Internal clock/SCK pin functions as clock output*2 Internal clock/SCK pin functions as serial clock output External clock/SCK pin functions as clock input*3 External clock/SCK pin functions as serial clock input External clock/SCK pin functions as clock input*3 External clock/SCK pin functions as serial clock input Notes: 1. Initial value 2. Outputs a clock of the same frequency as the bit rate. 3. Inputs a clock with a frequency 16 times the bit rate. 424 12.2.7 Bit Serial Status Register (SSR) : 7 TDRE 1 R/(W)* 6 RDRF 0 R/(W)* 5 ORER 0 R/(W)* 4 FER 0 R/(W)* 3 PER 0 R/(W)* 2 TEND 1 R 1 MPB 0 R 0 MPBT 0 R/W Initial value : R/W : Note: Only 0 can be written, to clear the flag. SSR is an 8-bit register containing status flags that indicate the operating status of the SCI, and multiprocessor bits. SSR can be read or written to by the CPU at all times. However, 1 cannot be written to flags TDRE, RDRF, ORER, PER, and FER. Also note that in order to clear these flags they must be read as 1 beforehand. The TEND flag and MPB flag are read-only flags and cannot be modified. SSR is initialized to H'84 by a reset, and in standby mode or module stop mode. Bit 7--Transmit Data Register Empty (TDRE): Indicates that data has been transferred from TDR to TSR and the next serial data can be written to TDR. Bit 7 TDRE 0 Description [Clearing conditions] * When 0 is written to TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR [Setting conditions] (Initial value) * When the TE bit in SCR is 0 * When data is transferred from TDR to TSR and data can be written to TDR 1 Bit 6--Receive Data Register Full (RDRF): Indicates that the received data is stored in RDR. Bit 6 RDRF 0 Description [Clearing conditions] (Initial value) * When 0 is written to RDRF after reading RDRF = 1 * When the DTC is activated by an RXI interrupt and reads data from RDR [Setting condition] When serial reception ends normally and receive data is transferred from RSR to RDR Note: RDR and the RDRF flag are not affected and retain their previous values when an error is detected during reception or when the RE bit in SCR is cleared to 0. If reception of the next data is completed while the RDRF flag is still set to 1, an overrun error will occur and the receive data will be lost. 425 1 Bit 5--Overrun Error (ORER): Indicates that an overrun error occurred during reception, causing abnormal termination. Bit 5 ORER 0 Description [Clearing condition] When 0 is written to ORER after reading ORER = 1 1 [Setting condition] When the next serial reception is completed while RDRF = 1 Notes: 1. The ORER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. 2. The receive data prior to the overrun error is retained in RDR, and the data received subsequently is lost. Also, subsequent serial reception cannot be continued while the ORER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. (Initial value)*1 Bit 4--Framing Error (FER): Indicates that a framing error occurred during reception in asynchronous mode, causing abnormal termination. Bit 4 FER 0 Description [Clearing condition] * 1 When 0 is written to FER after reading FER = 1 (Initial value)*1 [Setting condition] When the SCI checks whether the stop bit at the end of the receive data when reception ends, and the stop bit is 0 *2 Notes: 1. The FER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. 2. In 2-stop-bit mode, only the first stop bit is checked for a value of 0; the second stop bit is not checked. If a framing error occurs, the receive data is transferred to RDR but the RDRF flag is not set. Also, subsequent serial reception cannot be continued while the FER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. 426 Bit 3--Parity Error (PER): Indicates that a parity error occurred during reception using parity addition in asynchronous mode, causing abnormal termination. Bit 3 PER 0 1 Description [Clearing condition] When 0 is written to PER after reading PER = 1 [Setting condition] When, in reception, the number of 1 bits in the receive data plus the parity bit does not match the parity setting (even or odd) specified by the O/E bit in SMR*2 (Initial value)*1 Notes: 1. The PER flag is not affected and retains its previous state when the RE bit in SCR is cleared to 0. 2. If a parity error occurs, the receive data is transferred to RDR but the RDRF flag is not set. Also, subsequent serial reception cannot be continued while the PER flag is set to 1. In clocked synchronous mode, serial transmission cannot be continued, either. Bit 2--Transmit End (TEND): Indicates that there is no valid data in TDR when the last bit of the transmit character is sent, and transmission has been ended. The TEND flag is read-only and cannot be modified. Bit 2 TEND 0 Description [Clearing conditions] * When 0 is written to TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR [Setting conditions] (Initial value) * When the TE bit in SCR is 0 * When TDRE = 1 at transmission of the last bit of a 1-byte serial transmit character 1 Bit 1--Multiprocessor Bit (MPB): When reception is performed using multiprocessor format in asynchronous mode, MPB stores the multiprocessor bit in the receive data. MPB is a read-only bit, and cannot be modified. Bit 1 MPB 0 1 Description [Clearing condition] When data with a 0 multiprocessor bit is received [Setting condition] When data with a 1 multiprocessor bit is received (Initial value)* Note: * Retains its previous state when the RE bit in SCR is cleared to 0 with multiprocessor format. 427 Bit 0--Multiprocessor Bit Transfer (MPBT): When transmission is performed using multiprocessor format in asynchronous mode, MPBT stores the multiprocessor bit to be added to the transmit data. The MPBT bit setting is invalid when multiprocessor format is not used, when not transmitting, and in clocked synchronous mode. Bit 0 MPBT 0 1 Description Data with a 0 multiprocessor bit is transmitted Data with a 1 multiprocessor bit is transmitted (Initial value) 12.2.8 Bit Bit Rate Register (BRR) : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W 3 1 R/W 2 1 R/W 1 1 R/W 0 1 R/W Initial value : R/W : BRR is an 8-bit register that sets the serial transfer bit rate in accordance with the baud rate generator operating clock selected by bits CKS1 and CKS0 in SMR. BRR can be read or written to by the CPU at all times. BRR is initialized to H'FF by a reset, and in standby mode or module stop mode. As baud rate generator control is performed independently for each channel, different values can be set for each channel. Table 12.3 shows sample BRR settings in asynchronous mode, and table 12.4 shows sample BRR settings in clocked synchronous mode. 428 Table 12.3 BRR Settings for Various Bit Rates (Asynchronous Mode) o = 2 MHz Bit Rate (bit/s) 110 150 300 600 1200 2400 4800 9600 19200 31250 38400 Error (%) 0.03 0.16 0.16 0.16 0.16 0.16 0.16 -- -- 0.00 -- o = 2.097152 MHz Error (%) o = 2.4576 MHz Error (%) o = 3 MHz Error (%) 0.03 0.16 0.16 0.16 0.16 0.16 -2.34 -2.34 -2.34 0.00 -- n 1 1 0 0 0 0 0 0 0 0 0 N 141 103 207 103 51 25 12 6 2 1 1 n 1 1 0 0 0 0 0 0 0 0 0 N 148 108 217 108 54 26 13 6 2 1 1 n N 174 127 255 127 63 31 15 7 3 1 1 n N 212 155 77 155 77 38 19 9 4 2 -- -0.04 1 0.21 0.21 0.21 1 0 0 -0.26 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -- 0.00 1 1 0 0 0 0 0 0 0 -- -0.70 0 1.14 0 -2.48 0 -2.48 0 -- -- -- 0 0 0 o = 3.6864 MHz Bit Rate (bit/s) 110 150 300 600 1200 2400 4800 9600 19200 31250 38400 Error (%) 0.70 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -- 0.00 o = 4 MHz Error (%) 0.03 0.16 0.16 0.16 0.16 0.16 0.16 0.16 -- 0.00 -- o = 4.9152 MHz Error (%) 0.31 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o = 5 MHz Error (%) -0.25 0.16 0.16 0.16 0.16 0.16 -1.36 1.73 1.73 0.00 1.73 n 2 1 1 0 0 0 0 0 0 -- 0 N 64 191 95 191 95 47 23 11 5 -- 2 n 2 1 1 0 0 0 0 0 0 0 0 N 70 207 103 207 103 51 25 12 6 3 2 n 2 1 1 0 0 0 0 0 0 0 0 N 86 255 127 255 127 63 31 15 7 4 3 n 2 2 1 1 0 0 0 0 0 N 88 64 129 64 129 64 32 15 7 4 3 -1.70 0 0.00 0 Note: Settings with an error of 1% or less are recommended. Legend --: Setting possible, but error occurs 429 Table 12.3 BRR Settings for Various Bit Rates (Asynchronous Mode) (cont) o = 6 MHz Bit Rate (bit/s) 110 150 300 600 1200 2400 4800 9600 19200 31250 38400 Error (%) o = 6.144 MHz Error (%) 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.40 0.00 o = 7.3728 MHz Error (%) o = 8 MHz Error (%) 0.03 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.00 -- n 2 2 1 1 0 0 0 0 0 0 0 N 106 77 155 77 155 77 38 19 9 5 4 n N 108 79 159 79 159 79 39 19 9 5 4 n 2 2 1 1 0 0 0 0 0 0 0 N 130 95 191 95 191 95 47 23 11 6 5 n N 141 103 207 103 207 103 51 25 12 7 6 -0.44 2 0.16 0.16 0.16 0.16 0.16 0.16 2 1 1 0 0 0 -0.07 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -- 0.00 2 1 1 0 0 0 0 0 0 0 -2.34 0 -2.34 0 0.00 0 -2.34 0 o = 9.8304 MHz Bit Rate (bit/s) 110 150 300 600 1200 2400 4800 9600 19200 31250 38400 Error (%) o = 10 MHz Error (%) o = 12 MHz Error (%) 0.03 0.16 0.16 0.16 0.16 0.16 0.16 0.16 o = 12.288 MHz Error (%) 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.40 0.00 n 2 2 1 1 0 0 0 0 0 0 0 N 174 127 255 127 255 127 63 31 15 9 7 n N 177 129 64 129 64 129 64 32 15 9 7 n N 212 155 77 155 77 155 77 38 19 11 9 n 2 2 2 1 1 0 0 0 N 217 159 79 159 79 159 79 39 19 11 9 -0.26 2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 2 1 1 0 0 0 0 -0.25 2 0.16 0.16 0.16 0.16 0.16 0.16 2 2 1 1 0 0 -1.36 0 1.73 0.00 1.73 0 0 0 -2.34 0 0.00 0 -1.70 0 0.00 0 -2.34 0 Note: Settings with an error of 1% or less are recommended. Legend --: Setting possible, but error occurs 430 Table 12.3 BRR Settings for Various Bit Rates (Asynchronous Mode) (cont) o = 14 MHz Bit Rate (bit/s) 110 150 300 600 1200 2400 4800 9600 19200 31250 38400 Error (%) o = 14.7456 MHz Error (%) 0.70 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o = 16 MHz Error (%) 0.03 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.00 0.16 o = 17.2032 MHz Error (%) 0.48 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.20 0.00 n 2 2 2 1 1 0 0 0 0 0 0 N 248 181 90 181 90 181 90 45 22 13 10 n N 64 191 95 191 95 191 95 47 23 14 11 n 3 2 2 1 1 0 0 0 0 N 70 207 103 207 103 207 103 51 25 15 12 n 3 2 2 1 1 0 0 0 0 0 0 N 75 223 111 223 111 223 111 55 27 16 13 -0.17 3 0.16 0.16 0.16 0.16 0.16 0.16 2 2 1 1 0 0 -0.93 0 -0.93 0 0.00 -- 0 0 -1.70 0 0.00 0 o = 18 MHz Bit Rate (bit/s) 110 150 300 600 1200 2400 4800 9600 19200 31250 38400 Error (%) o = 19.6608 MHz Error (%) 0.31 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o = 20 MHz Error (%) -0.25 0.16 0.16 0.16 0.16 0.16 0.16 0.16 -1.36 0.00 1.73 n 3 2 2 1 1 0 0 0 0 0 0 N 79 233 116 233 116 233 116 58 28 17 14 n N 86 255 127 255 127 255 127 63 31 19 15 n 3 3 2 2 1 1 0 0 0 N 88 64 129 64 129 64 129 64 32 19 15 -0.12 3 0.16 0.16 0.16 0.16 0.16 0.16 2 2 1 1 0 0 -0.69 0 1.02 0.00 0 0 -1.70 0 0.00 0 -2.34 0 Note: Settings with an error of 1% or less are recommended. Legend --: Setting possible, but error occurs 431 Table 12.4 BRR Settings for Various Bit Rates (Clocked Synchronous Mode) Bit Rate (bit/s) 110 250 500 1k 2.5 k 5k 10 k 25 k 50 k 100 k 250 k 500 k 1M 2.5 M 5M n 3 2 1 1 0 0 0 0 0 0 0 0 o = 2 MHz N 70 124 249 124 199 99 49 19 9 4 1 0* n -- 2 2 1 1 0 0 0 0 0 0 0 0 o = 4 MHz N -- 249 124 249 99 199 99 39 19 9 3 1 0* 3 2 2 1 1 0 0 0 0 0 0 0 -- 124 249 124 199 99 199 79 39 19 7 3 1 -- -- -- -- 1 1 0 0 0 0 0 0 -- 0 -- -- -- 249 124 249 99 49 24 9 4 -- 0* 3 3 2 2 1 1 0 0 0 0 0 0 -- -- 249 124 249 99 199 99 159 79 39 15 7 3 -- -- -- -- 2 1 1 0 0 0 0 0 0 0 0 -- -- 124 249 124 199 99 49 19 9 4 1 0* n o = 8 MHz N n o = 10 MHz N n o = 16 MHz N n o = 20 MHz N Legend Blank : Cannot be set. -- : Can be set, but there will be a degree of error. * : Continuous transfer is not possible. 432 The BRR setting is found from the following formulas. Asynchronous mode: N= 64 x 22n-1 xB x 106 - 1 Clocked synchronous mode: N= 8 x 22n-1 x B x 106 - 1 Where B: N: o: n: Bit rate (bit/s) BRR setting for baud rate generator (0 N 255) Operating frequency (MHz) Baud rate generator input clock (n = 0 to 3) (See the table below for the relation between n and the clock.) SMR Setting n 0 1 2 3 Clock o o/4 o/16 o/64 CKS1 0 0 1 1 CKS0 0 1 0 1 The bit rate error in asynchronous mode is found from the following formula: Error (%) = x 106 (N + 1) x B x 64 x 22n-1 - 1 x 100 433 Table 12.5 shows the maximum bit rate for each frequency in asynchronous mode. Tables 12.6 and 12.7 show the maximum bit rates with external clock input. Table 12.5 Maximum Bit Rate for Each Frequency (Asynchronous Mode) o (MHz) 2 2.097152 2.4576 3 3.6864 4 4.9152 5 6 6.144 7.3728 8 9.8304 10 12 12.288 14 14.7456 16 17.2032 18 19.6608 20 Maximum Bit Rate (bit/s) 62500 65536 76800 93750 115200 125000 153600 156250 187500 192000 230400 250000 307200 312500 375000 384000 437500 460800 500000 537600 562500 614400 625000 n 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 434 Table 12.6 Maximum Bit Rate with External Clock Input (Asynchronous Mode) o (MHz) 2 2.097152 2.4576 3 3.6864 4 4.9152 5 6 6.144 7.3728 8 9.8304 10 12 12.288 14 14.7456 16 17.2032 18 19.6608 20 External Input Clock (MHz) 0.5000 0.5243 0.6144 0.7500 0.9216 1.0000 1.2288 1.2500 1.5000 1.5360 1.8432 2.0000 2.4576 2.5000 3.0000 3.0720 3.5000 3.6864 4.0000 4.3008 4.5000 4.9152 5.0000 Maximum Bit Rate (bit/s) 31250 32768 38400 46875 57600 62500 76800 78125 93750 96000 115200 125000 153600 156250 187500 192000 218750 230400 250000 268800 281250 307200 312500 435 Table 12.7 Maximum Bit Rate with External Clock Input (Clocked Synchronous Mode) o (MHz) 2 4 6 8 10 12 14 16 18 20 External Input Clock (MHz) 0.3333 0.6667 1.0000 1.3333 1.6667 2.0000 2.3333 2.6667 3.0000 3.3333 Maximum Bit Rate (bit/s) 333333.3 666666.7 1000000.0 1333333.3 1666666.7 2000000.0 2333333.3 2666666.7 3000000.0 3333333.3 436 12.2.9 Bit Smart Card Mode Register (SCMR) : 7 -- 1 -- 6 -- 1 -- 5 -- 1 -- 4 -- 1 -- 3 SDIR 0 R/W 2 SINV 0 R/W 1 -- 1 -- 0 SMIF 0 R/W Initial value : R/W : SCMR selects LSB-first or MSB-first by means of bit SDIR. Except in the case of asynchronous mode 7-bit data, LSB-first or MSB-first can be selected regardless of the serial communication mode. The descriptions in this chapter refer to LSB-first transfer. For details of the other bits in SCMR, see 13.2.1, Smart Card Mode Register (SCMR). SCMR is initialized to H'F2 by a reset, and in standby mode or module stop mode. Bits 7 to 4--Reserved: Read-only bits, always read as 1. Bit 3--Smart Card Data Transfer Direction (SDIR): Selects the serial/parallel conversion format. The transmit/receive format is valid for 8-bit data. Bit 3 SDIR 0 Description TDR contents are transmitted LSB-first Receive data is stored in RDR LSB-first 1 TDR contents are transmitted MSB-first Receive data is stored in RDR MSB-first (Initial value) Bit 2--Smart Card Data Invert (SINV): When the smart card interface operates as a normal SCI, 0 should be written in this bit. Bit 1--Reserved: Read-only bit, always read as 1. Bit 0--Smart Card Interface Mode Select (SMIF): When the smart card interface operates as a normal SCI, 0 should be written in this bit. 437 12.2.10 Module Stop Control Register (MSTPCR) MSTPCRH MSTPCRL 10 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 Bit : 15 0 14 0 13 1 12 1 11 1 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W MSTPCR is a 16-bit readable/writable register that performs module stop mode control. When the corresponding bit of bits MSTP6 to MSTP5 is set to 1, SCI operation stops at the end of the bus cycle and a transition is made to module stop mode. Registers cannot be read or written to in module stop mode. For details, see section 19.5, Module Stop Mode. MSTPCR is initialized to H'3FFF by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 6--Module Stop (MSTP6): Specifies the SCI channel 1 module stop mode. Bit 6 MSTP6 0 1 Description SCI channel 1 module stop mode cleared SCI channel 1 module stop mode set (Initial value) Bit 5--Module Stop (MSTP5): Specifies the SCI channel 0 module stop mode. Bit 5 MSTP5 0 1 Description SCI channel 0 module stop mode cleared SCI channel 0 module stop mode set (Initial value) 438 12.3 12.3.1 Operation Overview The SCI can carry out serial communication in two modes: asynchronous mode in which synchronization is achieved character by character, and clocked synchronous mode in which synchronization is achieved with clock pulses. Selection of asynchronous or clocked synchronous mode and the transmission format is made using SMR as shown in table 12.8. The SCI clock is determined by a combination of the C/A bit in SMR and the CKE1 and CKE0 bits in SCR, as shown in table 12.9. Asynchronous Mode * Data length: Choice of 7 or 8 bits * Choice of parity addition, multiprocessor bit addition, and addition of 1 or 2 stop bits (the combination of these parameters determines the transfer format and character length) * Detection of framing, parity, and overrun errors, and breaks, during reception * Choice of internal or external clock as SCI clock source When internal clock is selected: The SCI operates on the baud rate generator clock and a clock with the same frequency as the bit rate can be output When external clock is selected: A clock with a frequency of 16 times the bit rate must be input (the on-chip baud rate generator is not used) Clocked Synchronous Mode * Transfer format: Fixed 8-bit data * Detection of overrun errors during reception * Choice of internal or external clock as SCI clock source When internal clock is selected: The SCI operates on the baud rate generator clock and a serial clock is output off-chip When external clock is selected: The on-chip baud rate generator is not used, and the SCI operates on the input serial clock 439 Table 12.8 SMR Settings and Serial Transfer Format Selection SMR Settings Bit 7 C/A 0 Bit 6 CHR 0 Bit 2 MP 0 Bit 5 PE 0 Bit 3 STOP 0 1 1 0 1 1 0 0 1 1 0 1 0 1 -- -- 1 -- -- 1 -- -- -- 0 1 0 1 -- Clocked 8-bit data synchronous mode No Asynchronous mode (multiprocessor format) 7-bit data 8-bit data Yes No Yes 7-bit data No Mode Asynchronous mode Yes SCI Transfer Format Multiprocessor Bit No Data Length 8-bit data Parity Bit No Stop Bit Length 1 bit 2 bits 1 bit 2 bits 1 bit 2 bits 1 bit 2 bits 1 bit 2 bits 1 bit 2 bits None Table 12.9 SMR and SCR Settings and SCI Clock Source Selection SMR Bit 7 C/A 0 SCR Setting Bit 1 CKE1 0 Bit 0 CKE0 0 1 1 0 1 1 0 0 1 1 0 1 Clocked synchronous mode Internal Mode Asynchronous mode Clock Source Internal SCI Transmit/Receive Clock SCK Pin Function SCI does not use SCK pin Outputs clock with same frequency as bit rate External Inputs clock with frequency of 16 times the bit rate Outputs serial clock External Inputs serial clock 440 12.3.2 Operation in Asynchronous Mode In asynchronous mode, characters are sent or received, each preceded by a start bit indicating the start of communication and one or two stop bits indicating the end of communication. Serial communication is thus carried out with synchronization established on a character-by-character basis. Inside the SCI, the transmitter and receiver are independent units, enabling full-duplex communication. Both the transmitter and the receiver also have a double-buffered structure, so that data can be read or written during transmission or reception, enabling continuous data transfer. Figure 12.2 shows the general format for asynchronous serial communication. In asynchronous serial communication, the transmission line is usually held in the mark state (high level). The SCI monitors the transmission line, and when it goes to the space state (low level), recognizes a start bit and starts serial communication. One serial communication character consists of a start bit (low level), followed by data (in LSBfirst order), a parity bit (high or low level), and finally one or two stop bits (high level). In asynchronous mode, the SCI performs synchronization at the falling edge of the start bit in reception. The SCI samples the data on the 8th pulse of a clock with a frequency of 16 times the length of one bit, so that the transfer data is latched at the center of each bit. Idle state (mark state) 1 Serial data 0 Start bit 1 bit LSB D0 D1 D2 D3 D4 D5 D6 MSB D7 0/1 Parity bit 1 bit, or none 1 1 1 Stop bit Transmit/receive data 7 or 8 bits 1 or 2 bits One unit of transfer data (character or frame) Figure 12.2 Data Format in Asynchronous Communication (Example with 8-Bit Data, Parity, Two Stop Bits) 441 Data Transfer Format: Table 12.10 shows the data transfer formats that can be used in asynchronous mode. Any of 12 transfer formats can be selected according to the SMR setting. Table 12.10 Serial Transfer Formats (Asynchronous Mode) SMR Settings CHR 0 0 0 0 1 1 1 1 0 0 1 1 PE 0 0 1 1 0 0 1 1 -- -- -- -- MP 0 0 0 0 0 0 0 0 1 1 1 1 STOP 0 1 0 1 0 1 0 1 0 1 0 1 1 S Serial Transfer Format and Frame Length 2 3 4 5 6 7 8 9 10 STOP 11 12 8-bit data 8-bit data 8-bit data 8-bit data 7-bit data 7-bit data 7-bit data 7-bit data 8-bit data 8-bit data 7-bit data 7-bit data STOP S STOP STOP S P STOP S P STOP STOP S S STOP STOP S P STOP S P STOP STOP S MPB STOP S MPB STOP STOP S MPB STOP S MPB STOP STOP Legend S : Start bit STOP : Stop bit P : Parity bit MPB : Multiprocessor bit 442 Clock: Either an internal clock generated by the on-chip baud rate generator or an external clock input at the SCK pin can be selected as the SCI's serial clock, according to the setting of the C/A bit in SMR and the CKE1 and CKE0 bits in SCR. For details of SCI clock source selection, see table 12.9. When an external clock is input at the SCK pin, the clock frequency should be 16 times the bit rate used. When the SCI is operated on an internal clock, the clock can be output from the SCK pin. The frequency of the clock output in this case is equal to the bit rate, and the phase is such that the rising edge of the clock is in the middle of the transmit data, as shown in figure 12.3. 0 D0 D1 D2 D3 D4 D5 D6 D7 0/1 1 1 1 frame Figure 12.3 Relation between Output Clock and Transfer Data Phase (Asynchronous Mode) Data Transfer Operations: * SCI initialization (asynchronous mode) Before transmitting and receiving data, you should first clear the TE and RE bits in SCR to 0, then initialize the SCI as described below. When the operating mode, transfer format, etc., is changed, the TE and RE bits must be cleared to 0 before making the change using the following procedure. When the TE bit is cleared to 0, the TDRE flag is set to 1 and TSR is initialized. Note that clearing the RE bit to 0 does not change the contents of the RDRF, PER, FER, and ORER flags, or the contents of RDR. When an external clock is used the clock should not be stopped during operation, including initialization, since operation is uncertain. 443 Figure 12.4 shows a sample SCI initialization flowchart. Start initialization Clear TE and RE bits in SCR to 0 [1] Set the clock selection in SCR. Be sure to clear bits RIE, TIE, TEIE, and MPIE, and bits TE and RE, to 0. When the clock is selected in asynchronous mode, it is output immediately after SCR settings are made. [2] Set the data transfer format in SMR and SCMR. [3] Write a value corresponding to the bit rate to BRR. Not necessary if an external clock is used. [4] Wait at least one bit interval, then set the TE bit or RE bit in SCR to 1. Also set the RIE, TIE, TEIE, and MPIE bits. Setting the TE and RE bits enables the TxD and RxD pins to be used. [4] Set CKE1 and CKE0 bits in SCR (TE, RE bits 0) [1] Set data transfer format in SMR and SCMR Set value in BRR Wait [2] [3] No 1-bit interval elapsed? Yes Set TE and RE bits in SCR to 1, and set RIE, TIE, TEIE, and MPIE bits Figure 12.4 Sample SCI Initialization Flowchart 444 * Serial data transmission (asynchronous mode) Figure 12.5 shows a sample flowchart for serial transmission. The following procedure should be used for serial data transmission. Initialization Start transmission [1] Read TDRE flag in SSR [2] [1] SCI initialization: The TxD pin is automatically designated as the transmit data output pin. After the TE bit is set to 1, a frame of 1s is output, and transmission is enabled. [2] SCI status check and transmit data write: Read SSR and check that the TDRE flag is set to 1, then write transmit data to TDR and clear the TDRE flag to 0. [3] Serial transmission continuation procedure: To continue serial transmission, read 1 from the TDRE flag to confirm that writing is possible, then write data to TDR, and then clear the TDRE flag to 0. Checking and clearing of the TDRE flag is automatic when the DTC is activated by a transmit data empty interrupt (TXI) request, and date is written to TDR. [4] Break output at the end of serial transmission: To output a break in serial transmission, set DDR for the port corresponding to the TxD pin to 1, clear DR to 0, then clear the TE bit in SCR to 0. No TDRE=1 Yes Write transmit data to TDR and clear TDRE flag in SSR to 0 No All data transmitted? Yes [3] Read TEND flag in SSR No TEND= 1 Yes No Break output? Yes Clear DR to 0 and set DDR to 1 [4] Clear TE bit in SCR to 0 Figure 12.5 Sample Serial Transmission Flowchart 445 In serial transmission, the SCI operates as described below. [1] The SCI monitors the TDRE flag in SSR, and if is 0, recognizes that data has been written to TDR, and transfers the data from TDR to TSR. [2] After transferring data from TDR to TSR, the SCI sets the TDRE flag to 1 and starts transmission. If the TIE bit is set to 1 at this time, a transmit data empty interrupt (TXI) is generated. The serial transmit data is sent from the TxD pin in the following order. [a] Start bit: One 0-bit is output. [b] Transmit data: 8-bit or 7-bit data is output in LSB-first order. [c] Parity bit or multiprocessor bit: One parity bit (even or odd parity), or one multiprocessor bit is output. A format in which neither a parity bit nor a multiprocessor bit is output can also be selected. [d] Stop bit(s): One or two 1-bits (stop bits) are output. [e] Mark state: 1 is output continuously until the start bit that starts the next transmission is sent. [3] The SCI checks the TDRE flag at the timing for sending the stop bit. If the TDRE flag is cleared to 0, the data is transferred from TDR to TSR, the stop bit is sent, and then serial transmission of the next frame is started. If the TDRE flag is set to 1, the TEND flag in SSR is set to 1, the stop bit is sent, and then the "mark state" is entered in which 1 is output continuously. If the TEIE bit in SCR is set to 1 at this time, a TEI interrupt request is generated. 446 Figure 12.6 shows an example of the operation for transmission in asynchronous mode. 1 Start bit 0 D0 D1 Data D7 Parity Stop Start bit bit bit 0/1 1 0 D0 D1 Data D7 Parity Stop bit bit 0/1 1 1 Idle state (mark state) TDRE TEND TXI interrupt Data written to TDR and request generated TDRE flag cleared to 0 in TXI interrupt service routine TXI interrupt request generated TEI interrupt request generated 1 frame Figure 12.6 Example of Operation in Transmission in Asynchronous Mode (Example with 8-Bit Data, Parity, One Stop Bit) 447 * Serial data reception (asynchronous mode) Figure 12.7 shows a sample flowchart for serial reception. The following procedure should be used for serial data reception. Initialization Start reception [1] [1] SCI initialization: The RxD pin is automatically designated as the receive data input pin. [2] [3] Receive error processing and break detection: Read ORER, PER, and If a receive error occurs, read the [2] FER flags in SSR ORER, PER, and FER flags in SSR to identify the error. After performing the appropriate error Yes processing, ensure that the PERFERORER= 1 ORER, PER, and FER flags are [3] all cleared to 0. Reception cannot No Error processing be resumed if any of these flags (Continued on next page) are set to 1. In the case of a framing error, a break can be detected by reading the value of [4] Read RDRF flag in SSR the input port corresponding to the RxD pin. No RDRF= 1 Yes Read receive data in RDR, and clear RDRF flag in SSR to 0 [4] SCI status check and receive data read : Read SSR and check that RDRF = 1, then read the receive data in RDR and clear the RDRF flag to 0. Transition of the RDRF flag from 0 to 1 can also be identified by an RXI interrupt. [5] No All data received? Yes Clear RE bit in SCR to 0 [5] Serial reception continuation procedure: To continue serial reception, before the stop bit for the current frame is received, read the RDRF flag, read RDR, and clear the RDRF flag to 0. The RDRF flag is cleared automatically when the DTC is activated by an RXI interrupt and the RDR value is read. Figure 12.7 Sample Serial Reception Data Flowchart 448 [3] Error processing No ORER= 1 Yes Overrun error processing No FER= 1 Yes No Break? Yes Framing error processing Clear RE bit in SCR to 0 No PER= 1 Yes Parity error processing Clear ORER, PER, and FER flags in SSR to 0 Figure 12.7 Sample Serial Reception Data Flowchart (cont) 449 In serial reception, the SCI operates as described below. [1] The SCI monitors the transmission line, and if a 0 stop bit is detected, performs internal synchronization and starts reception. [2] The received data is stored in RSR in LSB-to-MSB order. [3] The parity bit and stop bit are received. After receiving these bits, the SCI carries out the following checks. [a] Parity check: The SCI checks whether the number of 1 bits in the receive data agrees with the parity (even or odd) set in the O/E bit in SMR. [b] Stop bit check: The SCI checks whether the stop bit is 1. If there are two stop bits, only the first is checked. [c] Status check: The SCI checks whether the RDRF flag is 0, indicating that the receive data can be transferred from RSR to RDR. If all the above checks are passed, the RDRF flag is set to 1, and the receive data is stored in RDR. If a receive error* is detected in the error check, the operation is as shown in table 12.11. Note: * Subsequent receive operations cannot be performed when a receive error has occurred. Also note that the RDRF flag is not set to 1 in reception, and so the error flags must be cleared to 0. [4] If the RIE bit in SCR is set to 1 when the RDRF flag changes to 1, a receive data full interrupt (RXI) request is generated. Also, if the RIE bit in SCR is set to 1 when the ORER, PER, or FER flag changes to 1, a receive error interrupt (ERI) request is generated. 450 Table 12.11 Receive Errors and Conditions for Occurrence Receive Error Overrun error Abbreviation ORER Occurrence Condition Data Transfer When the next data reception is Receive data is not completed while the RDRF flag transferred from RSR to in SSR is set to 1 RDR. When the stop bit is 0 Receive data is transferred from RSR to RDR. Framing error Parity error FER PER When the received data differs Receive data is transferred from the parity (even or odd) set from RSR to RDR. in SMR Figure 12.8 shows an example of the operation for reception in asynchronous mode. 1 Start bit 0 D0 D1 Data D7 Parity Stop Start bit bit bit 0/1 1 0 D0 D1 Data D7 Parity Stop bit bit 0/1 0 1 Idle state (mark state) RDRF FER RXI interrupt request generated RDR data read and RDRF flag cleared to 0 in RXI interrupt service routine ERI interrupt request generated by framing error 1 frame Figure 12.8 Example of SCI Operation in Reception (Example with 8-Bit Data, Parity, One Stop Bit) 451 12.3.3 Multiprocessor Communication Function The multiprocessor communication function performs serial communication using the multiprocessor format, in which a multiprocessor bit is added to the transfer data, in asynchronous mode. Use of this function enables data transfer to be performed among a number of processors sharing transmission lines. When multiprocessor communication is carried out, each receiving station is addressed by a unique ID code. The serial communication cycle consists of two component cycles: an ID transmission cycle which specifies the receiving station , and a data transmission cycle. The multiprocessor bit is used to differentiate between the ID transmission cycle and the data transmission cycle. The transmitting station first sends the ID of the receiving station with which it wants to perform serial communication as data with a 1 multiprocessor bit added. It then sends transmit data as data with a 0 multiprocessor bit added. The receiving station skips the data until data with a 1 multiprocessor bit is sent. When data with a 1 multiprocessor bit is received, the receiving station compares that data with its own ID. The station whose ID matches then receives the data sent next. Stations whose ID does not match continue to skip the data until data with a 1 multiprocessor bit is again received. In this way, data communication is carried out among a number of processors. Figure 12.9 shows an example of inter-processor communication using the multiprocessor format. Data Transfer Format: There are four data transfer formats. When the multiprocessor format is specified, the parity bit specification is invalid. For details, see table 12.10. Clock: See the section on asynchronous mode. 452 Transmitting station Serial transmission line Receiving station A (ID= 01) Serial data Receiving station B (ID= 02) Receiving station C (ID= 03) Receiving station D (ID= 04) H'01 (MPB= 1) ID transmission cycle= receiving station specification H'AA (MPB= 0) Data transmission cycle= Data transmission to receiving station specified by ID Legend MPB: Multiprocessor bit Figure 12.9 Example of Inter-Processor Communication Using Multiprocessor Format (Transmission of Data H'AA to Receiving Station A) Data Transfer Operations: * Multiprocessor serial data transmission Figure 12.10 shows a sample flowchart for multiprocessor serial data transmission. The following procedure should be used for multiprocessor serial data transmission. 453 Initialization Start transmission [1] [1] SCI initialization: Read TDRE flag in SSR [2] The TxD pin is automatically designated as the transmit data output pin. After the TE bit is set to 1, a frame of 1s is output, and transmission is enabled. [2] SCI status check and transmit data write: Read SSR and check that the TDRE flag is set to 1, then write transmit data to TDR. Set the MPBT bit in SSR to 0 or 1. Finally, clear the TDRE flag to 0. No TDRE= 1 Yes Write transmit data to TDR and set MPBT bit in SSR Clear TDRE flag to 0 No All data transmitted? Yes Read TEND flag in SSR No TEND= 1 Yes No Break output? Yes [3] Serial transmission continuation procedure: To continue serial transmission, be sure to read 1 from the TDRE flag to confirm that writing is [3] possible, then write data to TDR, and then clear the TDRE flag to 0. Checking and clearing of the TDRE flag is automatic when the DTC is activated by a transmit data empty interrupt (TXI) request, and data is written to TDR. [4] Break output at the end of serial transmission: To output a break in serial transmission, set the port DDR to [4] 1, clear DR to 0, then clear the TE bit in SCR to 0. Clear DR to 0 and set DDR to 1 Clear TE bit in SCR to 0 Figure 12.10 Sample Multiprocessor Serial Transmission Flowchart 454 In serial transmission, the SCI operates as described below. [1] The SCI monitors the TDRE flag in SSR, and if is 0, recognizes that data has been written to TDR, and transfers the data from TDR to TSR. [2] After transferring data from TDR to TSR, the SCI sets the TDRE flag to 1 and starts transmission. If the TIE bit is set to 1 at this time, a transmit data empty interrupt (TXI) is generated. The serial transmit data is sent from the TxD pin in the following order. [a] Start bit: One 0-bit is output. [b] Transmit data: 8-bit or 7-bit data is output in LSB-first order. [c] Multiprocessor bit One multiprocessor bit (MPBT value) is output. [d] Stop bit(s): One or two 1-bits (stop bits) are output. [e] Mark state: 1 is output continuously until the start bit that starts the next transmission is sent. [3] The SCI checks the TDRE flag at the timing for sending the stop bit. If the TDRE flag is cleared to 0, data is transferred from TDR to TSR, the stop bit is sent, and then serial transmission of the next frame is started. If the TDRE flag is set to 1, the TEND flag in SSR is set to 1, the stop bit is sent, and then the mark state is entered in which 1 is output continuously. If the TEIE bit in SCR is set to 1 at this time, a transmission end interrupt (TEI) request is generated. 455 Figure 12.11 shows an example of SCI operation for transmission using the multiprocessor format. Multiprocessor Stop bit bit D7 0/1 1 1 Start bit 0 D0 D1 Data Start bit 0 D0 D1 Data D7 Multiproces- Stop 1 sor bit bit 0/1 1 Idle state (mark state) TDRE TEND TXI interrupt request generated Data written to TDR and TDRE flag cleared to 0 in TXI interrupt service routine TXI interrupt request generated TEI interrupt request generated 1 frame Figure 12.11 Example of SCI Operation in Transmission (Example with 8-Bit Data, Multiprocessor Bit, One Stop Bit) * Multiprocessor serial data reception Figure 12.12 shows a sample flowchart for multiprocessor serial reception. The following procedure should be used for multiprocessor serial data reception. 456 Initialization Start reception [1] [1] SCI initialization: The RxD pin is automatically designated as the receive data input pin. [2] ID reception cycle: Set the MPIE bit in SCR to 1. [3] SCI status check, ID reception and comparison: Read SSR and check that the RDRF flag is set to 1, then read the receive data in RDR and compare it with this station's ID. If the data is not this station's ID, set the MPIE bit to 1 again, and clear the RDRF flag to 0. If the data is this station's ID, clear the RDRF flag to 0. [4] SCI status check and data reception: Read SSR and check that the RDRF flag is set to 1, then read the data in RDR. [5] Receive error processing and break detection: If a receive error occurs, read the ORER and FER flags in SSR to identify the error. After performing the appropriate error processing, ensure that the ORER and FER flags are all cleared to 0. Reception cannot be resumed if either of these flags is set to 1. In the case of a framing error, a break can be detected by reading the RxD pin value. Read MPIE bit in SCR Read ORER and FER flags in SSR [2] Yes FERORER= 1 No Read RDRF flag in SSR No RDRF= 1 Yes Read receive data in RDR No This station's ID? Yes Read ORER and FER flags in SSR Yes FERORER= 1 No Read RDRF flag in SSR [4] No RDRF= 1 Yes Read receive data in RDR No All data received? Yes Clear RE bit in SCR to 0 [5] Error processing (Continued on next page) Figure 12.12 Sample Multiprocessor Serial Reception Flowchart 457 [5] Error processing No ORER= 1 Yes Overrun error processing No FER= 1 Yes Yes Break? No Framing error processing Clear RE bit in SCR to 0 Clear ORER, PER, and FER flags in SSR to 0 Figure 12.12 Sample Multiprocessor Serial Reception Flowchart (cont) 458 Figure 12.13 shows an example of SCI operation for multiprocessor format reception. Start bit 0 D0 D1 Data (ID1) MPB D7 1 Stop bit 1 Start bit 0 D0 D1 Data (Data1) MPB D7 0 Stop bit 1 1 1 Idle state (mark state) MPIE RDRF RDR value MPIE = 0 RXI interrupt request (multiprocessor interrupt) generated RDR data read and RDRF flag cleared to 0 in RXI interrupt service routine ID1 If not this station's ID, RXI interrupt request is MPIE bit is set to 1 not generated, and RDR again retains its state (a) Data does not match station's ID 1 Start bit 0 D0 D1 Data (ID2) MPB D7 1 Stop bit 1 Start bit 0 D0 Data (Data2) MPB D1 D7 0 Stop bit 1 1 Idle state (mark state) MPIE RDRF RDR value ID1 MPIE = 0 RXI interrupt request (multiprocessor interrupt) generated RDR data read and RDRF flag cleared to 0 in RXI interrupt service routine ID2 Matches this station's ID, so reception continues, and data is received in RXI interrupt service routine Data2 MPIE bit set to 1 again (b) Data matches station's ID Figure 12.13 Example of SCI Operation in Reception (Example with 8-Bit Data, Multiprocessor Bit, One Stop Bit) 459 12.3.4 Operation in Clocked Synchronous Mode In clocked synchronous mode, data is transmitted or received in synchronization with clock pulses, making it suitable for high-speed serial communication. Inside the SCI, the transmitter and receiver are independent units, enabling full-duplex communication by use of a common clock. Both the transmitter and the receiver also have a double-buffered structure, so that data can be read or written during transmission or reception, enabling continuous data transfer. Figure 12.14 shows the general format for clocked synchronous serial communication. One unit of transfer data (character or frame) * Serial clock LSB Serial data Don't care Note: * High except in continuous transfer Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 MSB Bit 7 Don't care * Figure 12.14 Data Format in Synchronous Communication In clocked synchronous serial communication, data on the transmission line is output from one falling edge of the serial clock to the next. Data confirmation is guaranteed at the rising edge of the serial clock. In clocked serial communication, one character consists of data output starting with the LSB and ending with the MSB. After the MSB is output, the transmission line holds the MSB state. In clocked synchronous mode, the SCI receives data in synchronization with the rising edge of the serial clock. Data Transfer Format: A fixed 8-bit data format is used. No parity or multiprocessor bits are added. Clock: Either an internal clock generated by the on-chip baud rate generator or an external serial clock input at the SCK pin can be selected, according to the setting of the C/A bit in SMR and the CKE1 and CKE0 bits in SCR. For details of SCI clock source selection, see table 12.9. When the SCI is operated on an internal clock, the serial clock is output from the SCK pin. 460 Eight serial clock pulses are output in the transfer of one character, and when no transfer is performed the clock is fixed high. When only receive operations are performed, however, the serial clock is output until an overrun error occurs or the RE bit is cleared to 0. If you want to perform receive operations in units of one character, you should select an external clock as the clock source. Data Transfer Operations: * SCI initialization (clocked synchronous mode) Before transmitting and receiving data, you should first clear the TE and RE bits in SCR to 0, then initialize the SCI as described below. When the operating mode, transfer format, etc., is changed, the TE and RE bits must be cleared to 0 before making the change using the following procedure. When the TE bit is cleared to 0, the TDRE flag is set to 1 and TSR is initialized. Note that clearing the RE bit to 0 does not change the contents of the RDRF, PER, FER, and ORER flags, or the contents of RDR. Figure 12.15 shows a sample SCI initialization flowchart. Start initialization Clear TE and RE bits in SCR to 0 [1] Set the clock selection in SCR. Be sure to clear bits RIE, TIE, TEIE, and MPIE, TE and RE, to 0. [2] Set the data transfer format in SMR and SCMR. [1] Set CKE1 and CKE0 bits in SCR (TE, RE bits 0) Set data transfer format in SMR and SCMR [2] [3] Write a value corresponding to the bit rate to BRR. Not necessary if an external clock is used. [4] Wait at least one bit interval, then set the TE bit or RE bit in SCR to 1. Also set the RIE, TIE, TEIE, and MPIE bits. Setting the TE and RE bits enables the TxD and RxD pins to be used. Set value in BRR Wait [3] No 1-bit interval elapsed? Yes Set TE and RE bits in SCR to 1, and set RIE, TIE, TEIE, and MPIE bits [4] Figure 12.15 Sample SCI Initialization Flowchart 461 * Serial data transmission (clocked synchronous mode) Figure 12.16 shows a sample flowchart for serial transmission. The following procedure should be used for serial data transmission. Initialization Start transmission [1] [1] SCI initialization: The TxD pin is automatically designated as the transmit data output pin. [2] SCI status check and transmit data write: Read SSR and check that the TDRE flag is set to 1, then write transmit data to TDR and clear the TDRE flag to 0. [3] Serial transmission continuation procedure: To continue serial transmission, be sure to read 1 from the TDRE flag to confirm that writing is possible, then write data to TDR, and then clear the TDRE flag to 0. Checking and clearing of the TDRE flag is automatic when the DTC is activated by a transmit data empty interrupt (TXI) request and data is written to TDR. Read TDRE flag in SSR [2] No TDRE= 1 Yes Write transmit data to TDR and clear TDRE flag in SSR to 0 No All data transmitted? Yes [3] Read TEND flag in SSR No TEND= 1 Yes Clear TE bit in SCR to 0 Figure 12.16 Sample Serial Transmission Flowchart 462 In serial transmission, the SCI operates as described below. [1] The SCI monitors the TDRE flag in SSR, and if is 0, recognizes that data has been written to TDR, and transfers the data from TDR to TSR. [2] After transferring data from TDR to TSR, the SCI sets the TDRE flag to 1 and starts transmission. If the TIE bit is set to 1 at this time, a transmit data empty interrupt (TXI) is generated. When clock output mode has been set, the SCI outputs 8 serial clock pulses. When use of an external clock has been specified, data is output synchronized with the input clock. The serial transmit data is sent from the TxD pin starting with the LSB (bit 0) and ending with the MSB (bit 7). [3] The SCI checks the TDRE flag at the timing for sending the MSB (bit 7). If the TDRE flag is cleared to 0, data is transferred from TDR to TSR, and serial transmission of the next frame is started. If the TDRE flag is set to 1, the TEND flag in SSR is set to 1, the MSB (bit 7) is sent, and the TxD pin maintains its state. If the TEIE bit in SCR is set to 1 at this time, a TEI interrupt request is generated. [4] After completion of serial transmission, the SCK pin is fixed. Figure 12.17 shows an example of SCI operation in transmission. Transfer direction Serial clock Serial data Bit 7 Bit 0 Bit 7 Bit 0 Bit 1 Bit 6 Bit 7 TDRE TEND TXI interrupt Data written to TDR request generated and TDRE flag cleared to 0 in TXI interrupt service routine 1 frame TXI interrupt request generated TEI interrupt request generated Figure 12.17 Example of SCI Operation in Transmission * Serial data reception (clocked synchronous mode) 463 Figure 12.18 shows a sample flowchart for serial reception. The following procedure should be used for serial data reception. When changing the operating mode from asynchronous to clocked synchronous, be sure to check that the ORER, PER, and FER flags are all cleared to 0. The RDRF flag will not be set if the FER or PER flag is set to 1, and neither transmit nor receive operations will be possible. 464 Initialization Start reception [1] [1] SCI initialization: The RxD pin is automatically designated as the receive data input pin. Read ORER flag in SSR Yes ORER= 1 No [2] [3] Error processing (Continued below) [2] [3] Receive error processing: If a receive error occurs, read the ORER flag in SSR , and after performing the appropriate error processing, clear the ORER flag to 0. Transfer cannot be resumed if the ORER flag is set to 1. [4] SCI status check and receive data read: Read SSR and check that the RDRF flag is set to 1, then read the receive data in RDR and clear the RDRF flag to 0. Transition of the RDRF flag from 0 to 1 can also be identified by an RXI interrupt. [5] Serial reception continuation procedure: To continue serial reception, before the MSB (bit 7) of the current frame is received, finish reading the RDRF flag, reading RDR, and clearing the RDRF flag to 0. The RDRF flag is cleared automatically when the DTC is activated by a receive data full interrupt (RXI) request and the RDR value is read. Read RDRF flag in SSR [4] No RDRF= 1 Yes Read receive data in RDR, and clear RDRF flag in SSR to 0 No All data received? Yes Clear RE bit in SCR to 0 Error processing Overrun error processing Clear ORER flag in SSR to 0 Figure 12.18 Sample Serial Reception Flowchart 465 In serial reception, the SCI operates as described below. [1] The SCI performs internal initialization in synchronization with serial clock input or output. [2] The received data is stored in RSR in LSB-to-MSB order. After reception, the SCI checks whether the RDRF flag is 0 and the receive data can be transferred from RSR to RDR. If this check is passed, the RDRF flag is set to 1, and the receive data is stored in RDR. If a receive error is detected in the error check, the operation is as shown in table 12.11. Neither transmit nor receive operations can be performed subsequently when a receive error has been found in the error check. [3] If the RIE bit in SCR is set to 1 when the RDRF flag changes to 1, a receive data full interrupt (RXI) request is generated. Also, if the RIE bit in SCR is set to 1 when the ORER flag changes to 1, a receive error interrupt (ERI) request is generated. Figure 12.19 shows an example of SCI operation in reception. Serial clock Serial data RDRF ORER RXI interrupt request generated RDR data read and RDRF flag cleared to 0 in RXI interrupt service routine 1 frame RXI interrupt request generated ERI interrupt request generated by overrun error Bit 7 Bit 0 Bit 7 Bit 0 Bit 1 Bit 6 Bit 7 Figure 12.19 Example of SCI Operation in Reception * Simultaneous serial data transmission and reception (clocked synchronous mode) Figure 12.20 shows a sample flowchart for simultaneous serial transmit and receive operations. The following procedure should be used for simultaneous serial data transmit and receive operations. 466 Initialization Start transmission/reception [1] [1] SCI initialization: The TxD pin is designated as the transmit data output pin, and the RxD pin is designated as the receive data input pin, enabling simultaneous transmit and receive operations. Read TDRE flag in SSR No TDRE= 1 Yes Write transmit data to TDR and clear TDRE flag in SSR to 0 [2] [2] SCI status check and transmit data write: Read SSR and check that the TDRE flag is set to 1, then write transmit data to TDR and clear the TDRE flag to 0. Transition of the TDRE flag from 0 to 1 can also be identified by a TXI interrupt. [3] Receive error processing: Read ORER flag in SSR Yes [3] Error processing ORER= 1 No If a receive error occurs, read the ORER flag in SSR , and after performing the appropriate error processing, clear the ORER flag to 0. Transmission/reception cannot be resumed if the ORER flag is set to 1. [4] SCI status check and receive data read: Read SSR and check that the RDRF flag is set to 1, then read the receive data in RDR and clear the RDRF flag to 0. Transition of the RDRF flag from 0 to 1 can also be identified by an RXI interrupt. Read RDRF flag in SSR No RDRF= 1 Yes Read receive data in RDR, and clear RDRF flag in SSR to 0 [4] [5] Serial transmission/reception continuation procedure: To continue serial transmission/ reception, before the MSB (bit 7) of the current frame is received, finish reading the RDRF flag, reading RDR, and clearing the RDRF flag to 0. Also, before the MSB (bit 7) of the current frame is transmitted, read 1 from the TDRE flag to confirm that writing is possible. Then write data to TDR and clear the TDRE flag to 0. Checking and clearing of the TDRE flag is automatic when the DTC is activated by a transmit data empty interrupt (TXI) request and data is written to TDR. Also, the RDRF flag is cleared automatically when the DTC is activated by a receive data full interrupt (RXI) request and the RDR value is read. No All data received? Yes [5] Clear TE and RE bits in SCR to 0 Figure 12.20 Sample Flowchart of Simultaneous Serial Transmit and Receive Operations 467 12.4 SCI Interrupts The SCI has four interrupt sources: the transmit-end interrupt (TEI) request, receive-error interrupt (ERI) request, receive-data-full interrupt (RXI) request, and transmit-data-empty interrupt (TXI) request. Table 12.12 shows the interrupt sources and their relative priorities. Individual interrupt sources can be enabled or disabled with the TIE, RIE, and TEIE bits in the SCR. Each kind of interrupt request is sent to the interrupt controller independently. When the TDRE flag in SSR is set to 1, a TXI interrupt request is generated. When the TEND flag in SSR is set to 1, a TEI interrupt request is generated. A TXI interrupt can activate the DTC to perform data transfer. The TDRE flag is cleared to 0 automatically when data transfer is performed by the DTC. The DTC cannot be activated by a TEI interrupt request. When the RDRF flag in SSR is set to 1, an RXI interrupt request is generated. When the ORER, PER, or FER flag in SSR is set to 1, an ERI interrupt request is generated. An RXI interrupt can activate the DTC to perform data transfer. The RDRF flag is cleared to 0 automatically when data transfer is performed by the DTC. The DTC cannot be activated by an ERI interrupt request. Table 12.12 SCI Interrupt Sources Channel 0 Interrupt Source ERI RXI TXI TEI 1 ERI RXI TXI TEI Description Interrupt due to receive error (ORER, FER, or PER) Interrupt due to receive data full state (RDRF) Interrupt due to transmit data empty state (TDRE) Interrupt due to transmission end (TEND) Interrupt due to receive error (ORER, FER, or PER) Interrupt due to receive data full state (RDRF) Interrupt due to transmit data empty state (TDRE) Interrupt due to transmission end (TEND) DTC Activation Not possible Possible Possible Not possible Not possible Possible Possible Not possible Low Priority* High Note: * This table shows the initial state immediately after a reset. Relative priorities among channels can be changed by means of ICR and IPR. A TEI interrupt is requested when the TEND flag is set to 1 while the TEIE bit is set to 1. The TEND flag is cleared at the same time as the TDRE flag. Consequently, if a TEI interrupt and a TXI interrupt are requested simultaneously, the TXI interrupt may be accepted first, with the result that the TDRE and TEND flags are cleared. Note that the TEI interrupt will not be accepted in this case. 468 12.5 Usage Notes The following points should be noted when using the SCI. Relation between Writes to TDR and the TDRE Flag The TDRE flag in SSR is a status flag that indicates that transmit data has been transferred from TDR to TSR. When the SCI transfers data from TDR to TSR, the TDRE flag is set to 1. Data can be written to TDR regardless of the state of the TDRE flag. However, if new data is written to TDR when the TDRE flag is cleared to 0, the data stored in TDR will be lost since it has not yet been transferred to TSR. It is therefore essential to check that the TDRE flag is set to 1 before writing transmit data to TDR. Operation when Multiple Receive Errors Occur Simultaneously If a number of receive errors occur at the same time, the state of the status flags in SSR is as shown in table 12.13. If there is an overrun error, data is not transferred from RSR to RDR, and the receive data is lost. Table 12.13 State of SSR Status Flags and Transfer of Receive Data SSR Status Flags RDRF 1 0 0 1 1 0 1 Notes: ORER 1 0 0 1 1 0 1 FER 0 1 0 1 0 1 1 PER 0 0 1 0 1 1 1 X X X Receive Data Transfer RSR to RDR X Receive Error Status Overrun error Framing error Parity error Overrun error + framing error Overrun error + parity error Framing error + parity error Overrun error + framing error + parity error : Receive data is transferred from RSR to RDR. X: Receive data is not transferred from RSR to RDR. 469 Break Detection and Processing (Asynchronous Mode Only): When framing error (FER) detection is performed, a break can be detected by reading the RxD pin value directly. In a break, the input from the RxD pin becomes all 0s, and so the FER flag is set, and the parity error flag (PER) may also be set. Note that, since the SCI continues the receive operation after receiving a break, even if the FER flag is cleared to 0, it will be set to 1 again. Sending a Break (Asynchronous Mode Only): The TxD pin has a dual function as an I/O port whose direction (input or output) is determined by DR and DDR. This can be used to send a break. Between serial transmission initialization and setting of the TE bit to 1, the mark state is replaced by the value of DR (the pin does not function as the TxD pin until the TE bit is set to 1). Consequently, DDR and DR for the port corresponding to the TxD pin are first set to 1. To send a break during serial transmission, first clear DR to 0, then clear the TE bit to 0. When the TE bit is cleared to 0, the transmitter is initialized regardless of the current transmission state, the TxD pin becomes an I/O port, and 0 is output from the TxD pin. Receive Error Flags and Transmit Operations (Clocked Synchronous Mode Only): Transmission cannot be started when a receive error flag (ORER, PER, or FER) is set to 1, even if the TDRE flag is cleared to 0. Be sure to clear the receive error flags to 0 before starting transmission. Note also that receive error flags cannot be cleared to 0 even if the RE bit is cleared to 0. Receive Data Sampling Timing and Reception Margin in Asynchronous Mode: In asynchronous mode, the SCI operates on a basic clock with a frequency of 16 times the transfer rate. In reception, the SCI samples the falling edge of the start bit using the basic clock, and performs internal synchronization. Receive data is latched internally at the rising edge of the 8th pulse of the basic clock. This is illustrated in figure 12.21. 470 16 clocks 8 clocks 0 Internal basic clock 7 15 0 7 15 0 Receive data (RxD) Synchronization sampling timing Start bit D0 D1 Data sampling timing Figure 12.21 Receive Data Sampling Timing in Asynchronous Mode Thus the reception margin in asynchronous mode is given by formula (1) below. M = (0.5 - 1 2N ) - (L - 0.5) F - D - 0.5 N (1 + F) x 100% . . . . . . . . Formula (1) Where M N D L F : Reception margin (%) : Ratio of bit rate to clock (N = 16) : Clock duty (D = 0 to 1.0) : Frame length (L = 9 to 12) : Absolute value of clock rate deviation Assuming values of F = 0 and D = 0.5 in formula (1), a reception margin of 46.875% is given by formula (2) below. When D = 0.5 and F = 0, M = (0.5 - 1 2 x 16 ) x 100% . . . . . . . . Formula (2) = 46.875% However, this is only the computed value, and a margin of 20% to 30% should be allowed in system design. 471 Restrictions on Use of DTC * When an external clock source is used as the serial clock, the transmit clock should not be input until at least 5 o clock cycles after TDR is updated by the DTC. Misoperation may occur if the transmit clock is input within 4 o clocks after TDR is updated. (Figure 12.22) * When RDR is read by the DTC, be sure to set the activation source to the relevant SCI reception end interrupt (RXI). SCK t TDRE LSB Serial data D0 D1 D2 D3 D4 D5 D6 D7 Note: When operating on an external clock, set t >4 clocks. Figure 12.22 Example of Clocked Synchronous Transmission by DTC Interrupts and Module Stop Mode: If module stop mode is entered when an interrupt has been requested, it will not be possible to clear the CPU interrupt source or DTC activation source. Interrupts should therefore be disabled before entering module stop mode. 472 Section 13 Smart Card Interface 13.1 Overview SCI supports an IC card (Smart Card) interface conforming to ISO/IEC 7816-3 (Identification Card) as a serial communication interface extension function. Switching between the normal serial communication interface and the Smart Card interface is carried out by means of a register setting. 13.1.1 Features Features of the Smart Card interface supported by the H8S/2345 Series are as follows. * Asynchronous mode Data length: 8 bits Parity bit generation and checking Transmission of error signal (parity error) in receive mode Error signal detection and automatic data retransmission in transmit mode Direct convention and inverse convention both supported * On-chip baud rate generator allows any bit rate to be selected * Three interrupt sources Three interrupt sources (transmit data empty, receive data full, and transmit/receive error) that can issue requests independently The transmit data empty interrupt and receive data full interrupt can activate the data transfer controller (DTC) to execute data transfer 473 13.1.2 Block Diagram Figure 13.1 shows a block diagram of the Smart Card interface. Bus interface Module data bus Internal data bus RDR TDR RxD RSR TSR SCMR SSR SCR SMR Transmission/ reception control BRR o Baud rate generator o/4 o/16 o/64 Clock TxD Parity generation Parity check SCK TXI RXI ERI : Smart Card mode register : Receive shift register : Receive data register : Transmit shift register : Transmit data register : Serial mode register : Serial control register : Serial status register : Bit rate register Legend SCMR RSR RDR TSR TDR SMR SCR SSR BRR Figure 13.1 Block Diagram of Smart Card Interface 474 13.1.3 Pin Configuration Table 13.1 shows the Smart Card interface pin configuration. Table 13.1 Smart Card Interface Pins Channel 0 Pin Name Serial clock pin 0 Receive data pin 0 Transmit data pin 0 1 Serial clock pin 1 Receive data pin 1 Transmit data pin 1 Symbol SCK0 RxD0 TxD0 SCK1 RxD1 TxD1 I/O I/O Input Output I/O Input Output Function SCI0 clock input/output SCI0 receive data input SCI0 transmit data output SCI1 clock input/output SCI1 receive data input SCI1 transmit data output 475 13.1.4 Register Configuration Table 13.2 shows the registers used by the Smart Card interface. Details of SMR, BRR, SCR, TDR, RDR, and MSTPCR are the same as for the normal SCI function: see the register descriptions in section 12, Serial Communication Interface. Table 13.2 Smart Card Interface Registers Channel 0 Name Serial mode register 0 Bit rate register 0 Serial control register 0 Transmit data register 0 Serial status register 0 Receive data register 0 Smart card mode register 0 1 Serial mode register 1 Bit rate register 1 Serial control register 1 Transmit data register 1 Serial status register 1 Receive data register 1 Smart card mode register 1 All Module stop control register Abbreviation SMR0 BRR0 SCR0 TDR0 SSR0 RDR0 SCMR0 SMR1 BRR1 SCR1 TDR1 SSR1 RDR1 SCMR1 MSTPCR R/W R/W R/W R/W R/W R/(W)* R R/W R/W R/W R/W R/W R/(W)* R R/W R/W 2 2 Initial Value H'00 H'FF H'00 H'FF H'84 H'00 H'F2 H'00 H'FF H'00 H'FF H'84 H'00 H'F2 H'3FFF Address*1 H'FF78 H'FF79 H'FF7A H'FF7B H'FF7C H'FF7D H'FF7E H'FF80 H'FF81 H'FF82 H'FF83 H'FF84 H'FF85 H'FF86 H'FF3C Notes: 1. Lower 16 bits of the address. 2. Can only be written with 0 for flag clearing. 476 13.2 Register Descriptions Registers added with the Smart Card interface and bits for which the function changes are described here. 13.2.1 Bit Smart Card Mode Register (SCMR) : 7 -- 1 -- 6 -- 1 -- 5 -- 1 -- 4 -- 1 -- 3 SDIR 0 R/W 2 SINV 0 R/W 1 -- 1 -- 0 SMIF 0 R/W Initial value : R/W : SCMR is an 8-bit readable/writable register that selects the Smart Card interface function. SCMR is initialized to H'F2 by a reset, and in standby mode or module stop mode. Bits 7 to 4--Reserved: Read-only bits, always read as 1. Bit 3--Smart Card Data Transfer Direction (SDIR): Selects the serial/parallel conversion format. Bit 3 SDIR 0 Description TDR contents are transmitted LSB-first Receive data is stored in RDR LSB-first 1 TDR contents are transmitted MSB-first Receive data is stored in RDR MSB-first (Initial value) Bit 2--Smart Card Data Invert (SINV): Specifies inversion of the data logic level. This function is used together with the SDIR bit for communication with an inverse convention card. The SINV bit does not affect the logic level of the parity bit. For parity-related setting procedures, see section 13.3.4, Register Settings. Bit 2 SINV 0 Description TDR contents are transmitted as they are Receive data is stored as it is in RDR 1 TDR contents are inverted before being transmitted Receive data is stored in inverted form in RDR (Initial value) 477 Bit 1--Reserved: Read-only bit, always read as 1. Bit 0--Smart Card Interface Mode Select (SMIF): Enables or disables the Smart Card interface function. Bit 0 SMIF 0 1 Description Smart Card interface function is disabled Smart Card interface function is enabled (Initial value) 13.2.2 Bit Serial Status Register (SSR) : 7 TDRE 1 R/(W)* 6 RDRF 0 R/(W)* 5 ORER 0 R/(W)* 4 ERS 0 R/(W)* 3 PER 0 R/(W)* 2 TEND 1 R 1 MPB 0 R 0 MPBT 0 R/W Initial value : R/W : Note: * Only 0 can be written to bits 7 to 3, to clear these flags. Bit 4 of SSR has a different function in Smart Card interface mode. Coupled with this, the setting conditions for bit 2, TEND, are also different. Bits 7 to 5--Operate in the same way as for the normal SCI. For details, see section 12.2.7, Serial Status Register (SSR). 478 Bit 4--Error Signal Status (ERS): In Smart Card interface mode, bit 4 indicates the status of the error signal sent back from the receiving end in transmission. Framing errors are not detected in Smart Card interface mode. Bit 4 ERS 0 Description Indicates that data was received normally and no error signal was sent [Clearing condition] * * 1 Upon reset, and in standby mode or module stop mode When 0 is written to ERS after reading ERS = 1 (Initial value) Indicates that an error signal was sent from the receiving side showing that a parity error was detected [Setting condition] When the low level of the error signal is sampled Note: Clearing the TE bit in SCR to 0 does not affect the ERS flag, which retains its previous state. Bits 3 to 0--Operate in the same way as for the normal SCI. For details, see section 12.2.7, Serial Status Register (SSR). However, the setting conditions for the TEND bit, are as shown below. Bit 2 TEND 0 Description Indicates data transmission in progress [Clearing conditions] * * 1 When 0 is written to TDRE after reading TDRE = 1 When the DTC is activated by a TXI interrupt and writes data to TDR (Initial value) Indicates that data transmission is finished [Setting conditions] * * * * Upon reset, and in standby mode or module stop mode When the TE bit in SCR is 0 and the ERS bit is also 0 When TDRE = 1 and ERS = 0 (normal transmission) 2.5 etu after a 1-byte serial character is transmitted when GM = 0 When TDRE = 1 and ERS = 0 (normal transmission) 1.0 etu after a 1-byte serial character is transmitted when GM = 1. Note: etu: Elementary Time Unit (time for transfer of 1 bit) 479 13.2.3 Bit Serial Mode Register (SMR) : 7 GM 0 GM R/W 6 CHR 0 0 R/W 5 PE 0 1 R/W 4 O/E 0 O/E R/W 3 STOP 0 1 R/W 2 MP 0 0 R/W 1 CKS1 0 CKS1 R/W 0 CKS0 0 CKS0 R/W Initial value : Set value* : R/W : Note: * When the smart card interface is used, be sure to make the 0 or 1 setting shown for bits 6, 5, 3, and 2. Bit 7 of SMR has a different function in smart card interface mode. Bit 7--GSM Mode (GM): Sets the smart card interface function to GSM mode. This bit is cleared to 0 when the normal smart card interface is used. In GSM mode, this bit is set to 1, the timing of setting of the TEND flag that indicates transmission completion is advanced and clock output control mode addition is performed. The contents of the clock output control mode addition are specified by bits 1 and 0 of the serial control register (SCR). Bit 7 GM 0 Description Normal smart card interface mode operation * * 1 * * TEND flag generation 12.5 etu after beginning of start bit Clock output ON/OFF control only (Initial value) GSM mode smart card interface mode operation TEND flag generation 11.0 etu after beginning of start bit High/low fixing control possible in addition to clock output ON/OFF control (set by SCR) Note: etu: Elementary time unit (time for transfer of 1 bit) Bits 6 to 0--Operate in the same way as for the normal SCI. For details, see section 12.2.5, Serial Mode Register (SMR). 480 13.2.4 Bit Serial Control Register (SCR) : 7 TIE 0 R/W 6 RIE 0 R/W 5 TE 0 R/W 4 RE 0 R/W 3 MPIE 0 R/W 2 TEIE 0 R/W 1 CKE1 0 R/W 0 CKE0 0 R/W Initial value : R/W : Bits 1 and 0 of SCR have a different function in smart card interface mode. Bits 7 to 2--Operate in the same way as for the normal SCI. For details, see section 12.2.6, Serial Control Register (SCR). Bits 1 and 0--Clock Enable (CKE1, CKE0): Selects the clock source, and enables or disables clock output from the SCK pin. In smart card interface mode, it is possible to switch between enabling and disabling of the normal clock output, and specify a fixed high level or fixed low level for the clock output. SCMR SMIF 0 1 0 0 0 1 1 0 1 1 0 1 SMR C/A, GM SCR Setting CKE1 CKE0 SCK Pin Function Description Refer to SCI designation The pin functions as an I/O port The pin outputs the clock as the SCK output pin The pin outputs fixed low level as the SCK output pin The pin outputs the clock as the SCK output pin The pin outputs fixed high level as the SCK output pin The pin outputs the clock as the SCK output pin 481 13.3 13.3.1 Operation Overview The main functions of the Smart Card interface are as follows. * One frame consists of 8-bit data plus a parity bit. * In transmission, a guard time of at least 2 etu (Elementary Time Unit: the time for transfer of one bit) is left between the end of the parity bit and the start of the next frame. * If a parity error is detected during reception, a low error signal level is output for one etu period, 10.5 etu after the start bit. * If the error signal is sampled during transmission, the same data is transmitted automatically after the elapse of 2 etu or longer. * Only start-stop asynchronous communication is supported; there is no clocked synchronous communication function. 13.3.2 Pin Connections Figure 13.2 shows a schematic diagram of Smart Card interface related pin connections. In communication with an IC card, since both transmission and reception are carried out on a single data transmission line, the TxD pin and RxD pin should be connected with the LSI pin. The data transmission line should be pulled up to the VCC power supply with a resistor. When the clock generated on the Smart Card interface is used by an IC card, the SCK pin output is input to the CLK pin of the IC card. No connection is needed if the IC card uses an internal clock. LSI port output is used as the reset signal. Other pins must normally be connected to the power supply or ground. 482 VCC TxD I/O RxD SCK Px (port) H8S/2345 Series Connected equipment Clock line Reset line CLK RST IC card Figure 13.2 Schematic Diagram of Smart Card Interface Pin Connections Note: If an IC card is not connected, and the TE and RE bits are both set to 1, closed transmission/reception is possible, enabling self-diagnosis to be carried out. 483 13.3.3 Data Format Figure 13.3 shows the Smart Card interface data format. In reception in this mode, a parity check is carried out on each frame, and if an error is detected an error signal is sent back to the transmitting end, and retransmission of the data is requested. If an error signal is sampled during transmission, the same data is retransmitted. When there is no parity error Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp Transmitting station output When a parity error occurs Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp DE Transmitting station output Legend Ds D0 to D7 Dp DE Receiving station output : Start bit : Data bits : Parity bit : Error signal Figure 13.3 Smart Card Interface Data Format 484 The operation sequence is as follows. [1] When the data line is not in use it is in the high-impedance state, and is fixed high with a pullup resistor. [2] The transmitting station starts transfer of one frame of data. The data frame starts with a start bit (Ds, low-level), followed by 8 data bits (D0 to D7) and a parity bit (Dp). [3] With the Smart Card interface, the data line then returns to the high-impedance state. The data line is pulled high with a pull-up resistor. [4] The receiving station carries out a parity check. If there is no parity error and the data is received normally, the receiving station waits for reception of the next data. If a parity error occurs, however, the receiving station outputs an error signal (DE, low-level) to request retransmission of the data. After outputting the error signal for the prescribed length of time, the receiving station places the signal line in the high-impedance state again. The signal line is pulled high again by a pull-up resistor. [5] If the transmitting station does not receive an error signal, it proceeds to transmit the next data frame. If it does receive an error signal, however, it returns to step [2] and retransmits the erroneous data. 485 13.3.4 Register Settings Table 13.3 shows a bit map of the registers used by the smart card interface. Bits indicated as 0 or 1 must be set to the value shown. The setting of other bits is described below. Table 13.3 Smart Card Interface Register Settings Bit Register SMR BRR SCR TDR SSR RDR SCMR Bit 7 GM BRR7 TIE TDR7 TDRE RDR7 -- Bit 6 0 BRR6 RIE TDR6 RDRF RDR6 -- Bit 5 1 BRR5 TE TDR5 ORER RDR5 -- Bit 4 O/E BRR4 RE TDR4 ERS RDR4 -- Bit 3 1 BRR3 0 TDR3 PER RDR3 SDIR Bit 2 0 BRR2 0 TDR2 TEND RDR2 SINV Bit 1 CKS1 BRR1 CKE1* TDR1 0 RDR1 -- Bit 0 CKS0 BRR0 CKE0 TDR0 0 RDR0 SMIF Notes: -- : Unused bit. *: The CKE1 bit must be cleared to 0 when the GM bit in SMR is cleared to 0. SMR Setting: The GM bit is cleared to 0 in normal smart card interface mode, and set to 1 in GSM mode. The O/E bit is cleared to 0 if the IC card is of the direct convention type, and set to 1 if of the inverse convention type. Bits CKS1 and CKS0 select the clock source of the on-chip baud rate generator. See section 13.3.5, Clock. BRR Setting: BRR is used to set the bit rate. See section 13.3.5, Clock, for the method of calculating the value to be set. SCR Setting: The function of the TIE, RIE, TE, and RE bits is the same as for the normal SCI. For details, see section 12, Serial Communication Interface. Bits CKE1 and CKE0 specify the clock output. When the GM bit in SMR is cleared to 0, set these bits to B'00 if a clock is not to be output, or to B'01 if a clock is to be output. When the GM bit in SMR is set to 1, clock output is performed. The clock output can also be fixed high or low. 486 Smart Card Mode Register (SCMR) Setting: The SDIR bit is cleared to 0 if the IC card is of the direct convention type, and set to 1 if of the inverse convention type. The SINV bit is cleared to 0 if the IC card is of the direct convention type, and set to 1 if of the inverse convention type. The SMIF bit is set to 1 in the case of the Smart Card interface. Examples of register settings and the waveform of the start character are shown below for the two types of IC card (direct convention and inverse convention). * Direct convention (SDIR = SINV = O/E = 0) (Z) A Ds Z D0 Z D1 A D2 Z D3 Z D4 Z D5 A D6 A D7 Z Dp (Z) State With the direct convention type, the logic 1 level corresponds to state Z and the logic 0 level to state A, and transfer is performed in LSB-first order. The start character data above is H'3B. The parity bit is 1 since even parity is stipulated for the Smart Card. * Inverse convention (SDIR = SINV = O/E = 1) (Z) A Ds Z D7 Z D6 A D5 A D4 A D3 A D2 A D1 A D0 Z Dp (Z) State With the inverse convention type, the logic 1 level corresponds to state A and the logic 0 level to state Z, and transfer is performed in MSB-first order. The start character data above is H'3F. The parity bit is 0, corresponding to state Z, since even parity is stipulated for the Smart Card. With the H8S/2345 Series, inversion specified by the SINV bit applies only to the data bits, D7 to D0. For parity bit inversion, the O/E bit in SMR is set to odd parity mode (the same applies to both transmission and reception). 487 13.3.5 Clock Only an internal clock generated by the on-chip baud rate generator can be used as the transmit/receive clock for the smart card interface. The bit rate is set with BRR and the CKS1 and CKS0 bits in SMR. The formula for calculating the bit rate is as shown below. Table 13.5 shows some sample bit rates. If clock output is selected by setting CKE0 to 1, a clock with a frequency of 372 times the bit rate is output from the SCK pin. B= 1488 x 22n-1 x (N + 1) x 106 Where: N = Value set in BRR (0 N 255) B = Bit rate (bit/s) o = Operating frequency (MHz) n = See table 13.4 Table 13.4 Correspondence between n and CKS1, CKS0 n 0 1 2 3 1 CKS1 0 CKS0 0 1 0 1 Table 13.5 Examples of Bit Rate B (bit/s) for Various BRR Settings (When n = 0) o (MHz) N 0 1 2 10.00 13441 6720 4480 10.714 14400 7200 4800 13.00 17473 8737 5824 14.285 19200 9600 6400 16.00 21505 10753 7168 18.00 24194 12097 8065 20.00 26882 13441 8961 Note: Bit rates are rounded to the nearest whole number. 488 The method of calculating the value to be set in the bit rate register (BRR) from the operating frequency and bit rate, on the other hand, is shown below. N is an integer, 0 N 255, and the smaller error is specified. N= 1488 x 22n-1 x B x 106 - 1 Table 13.6 Examples of BRR Settings for Bit Rate B (bit/s) (When n = 0) o (MHz) 7.1424 bit/s 9600 10.00 10.7136 13.00 14.2848 16.00 18.00 20.00 N Error N Error N Error N Error N Error N Error N Error N Error 0 0.00 1 30 1 25 1 8.99 1 0.00 1 12.01 2 15.99 2 6.60 Table 13.7 Maximum Bit Rate at Various Frequencies (Smart Card Interface Mode) o (MHz) 7.1424 10.00 10.7136 13.00 14.2848 16.00 18.00 20.00 Maximum Bit Rate (bit/s) 9600 13441 14400 17473 19200 21505 24194 26882 N 0 0 0 0 0 0 0 0 n 0 0 0 0 0 0 0 0 The bit rate error is given by the following formula: Error (%) = 1488 x 22n-1 x B x (N + 1) x 106 - 1 x 100 489 13.3.6 Data Transfer Operations Initialization: Before transmitting and receiving data, initialize the SCI as described below. Initialization is also necessary when switching from transmit mode to receive mode, or vice versa. [1] Clear the TE and RE bits in SCR to 0. [2] Clear the error flags ERS, PER, and ORER in SSR to 0. [3] Set the O/E bit and CKS1 and CKS0 bits in SMR. Clear the C/A, CHR, and MP bits to 0, and set the STOP and PE bits to 1. [4] Set the SMIF, SDIR, and SINV bits in SCMR. When the SMIF bit is set to 1, the TxD and RxD pins are both switched from ports to SCI pins, and are placed in the high-impedance state. [5] Set the value corresponding to the bit rate in BRR. [6] Set the CKE0 bit in SCR. Clear the TIE, RIE, TE, RE, MPIE, TEIE and CKE1 bits to 0. If the CKE0 bit is set to 1, the clock is output from the SCK pin. [7] Wait at least one bit interval, then set the TIE, RIE, TE, and RE bits in SCR. Do not set the TE bit and RE bit at the same time, except for self-diagnosis. 490 Serial Data Transmission: As data transmission in smart card mode involves error signal sampling and retransmission processing, the processing procedure is different from that for the normal SCI. Figure 13.4 shows an example of the transmission processing flow. Also, figure 13.5 shows the relationship between transmission operations and the internal registers. [1] Perform Smart Card interface mode initialization as described above in Initialization. [2] Check that the ERS error flag in SSR is cleared to 0. [3] Repeat steps [2] and [3] until it can be confirmed that the TEND flag in SSR is set to 1. [4] Write the transmit data to TDR, clear the TDRE flag to 0, and perform the transmit operation. The TEND flag is cleared to 0. [5] When transmitting data continuously, go back to step [2]. [6] To end transmission, clear the TE bit to 0. With the above processing, interrupt servicing or data transfer by the DTC is possible. If transmission ends and the TEND flag is set to 1 while the TIE bit is set to 1 and interrupt requests are enabled, a transmit data empty interrupt (TXI) request will be generated. If an error occurs in transmission and the ERS flag is set to 1 while the RIE bit is set to 1 and interrupt requests are enabled, a transfer error interrupt (ERI) request will be generated. The timing for setting the TEND flag depends on the value of the GM bit in SMR. The TEND timing is shown in figure 13.6. If the DTC is activated by a TXI request, the number of bytes set in the DTC can be transmitted automatically, including automatic retransmission. For details, see Interrupt Operations and Data Transfer Operation by DTC below. 491 Start Initialization Start transmission ERS=0? Yes No Error processing No TEND=1? Yes Write data to TDR, and clear TDRE flag in SSR to 0 No All data transmitted? Yes No ERS=0? Yes Error processing No TEND=1? Yes Clear TE bit to 0 End Figure 13.4 Example of Transmission Processing Flow 492 TDR (1) Data write (2) Transfer from TDR to TSR (3) Serial data output Data 1 Data 1 Data 1 TSR (shift register) Data 1 ; Data remains in TDR Data 1 I/O signal line output In case of normal transmission: TEND flag is set In case of transmit error: ERS flag is set Steps (2) and (3) above are repeated until the TEND flag is set Note: When the ERS flag is set, it should be cleared until transfer of the last bit (D7 in LSB-first transmission, D0 in MSB-first transmission) of the next transfer data to be transmitted has been completed. Figure 13.5 Relation Between Transmit Operation and Internal Registers I/O data TXI (TEND interrupt) When GM = 0 Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp DE Guard time 12.5etu When GM = 1 11.0etu Legend Ds D0 to D7 Dp DE : Start bit : Data bits : Parity bit : Error signal Figure 13.6 TEND Flag Generation Timing in Transmission Operation 493 Serial Data Reception: Data reception in Smart Card mode uses the same processing procedure as for the normal SCI. Figure 13.7 shows an example of the transmission processing flow. [1] Perform Smart Card interface mode initialization as described above in Initialization. [2] Check that the ORER flag and PER flag in SSR are cleared to 0. If either is set, perform the appropriate receive error processing, then clear both the ORER and the PER flag to 0. [3] Repeat steps [2] and [3] until it can be confirmed that the RDRF flag is set to 1. [4] Read the receive data from RDR. [5] When receiving data continuously, clear the RDRF flag to 0 and go back to step [2]. [6] To end reception, clear the RE bit to 0. Start Initialization Start reception ORER = 0 and PER = 0 Yes No Error processing No RDRF=1? Yes Read RDR and clear RDRF flag in SSR to 0 No All data received? Yes Clear RE bit to 0 Figure 13.7 Example of Reception Processing Flow 494 With the above processing, interrupt servicing or data transfer by the DTC is possible. If reception ends and the RDRF flag is set to 1 while the RIE bit is set to 1 and interrupt requests are enabled, a receive data full interrupt (RXI) request will be generated. If an error occurs in reception and either the ORER flag or the PER flag is set to 1, a transfer error interrupt (ERI) request will be generated. If the DTC is activated by an RXI request, the receive data in which the error occurred is skipped, and only the number of bytes of receive data set in the DTC are transferred. For details, see Interrupt Operation and Data Transfer Operation by DTC below. If a parity error occurs during reception and the PER is set to 1, the received data is still transferred to RDR, and therefore this data can be read. Mode Switching Operation: When switching from receive mode to transmit mode, first confirm that the receive operation has been completed, then start from initialization, clearing RE bit to 0 and setting TE bit to 1. The RDRF flag or the PER and ORER flags can be used to check that the receive operation has been completed. When switching from transmit mode to receive mode, first confirm that the transmit operation has been completed, then start from initialization, clearing TE bit to 0 and setting RE bit to 1. The TEND flag can be used to check that the transmit operation has been completed. Fixing Clock Output Level: When the GM bit in SMR is set to 1, the clock output level can be fixed with bits CKE1 and CKE0 in SCR. At this time, the minimum clock pulse width can be made the specified width. Figure 13.8 shows the timing for fixing the clock output level. In this example, GM is set to 1, CKE1 is cleared to 0, and the CKE0 bit is controlled. Specified pulse width Specified pulse width SCK SCR write (CKE0 = 0) SCR write (CKE0 = 1) Figure 13.8 Timing for Fixing Clock Output Level 495 Interrupt Operation: There are three interrupt sources in smart card interface mode: transmit data empty interrupt (TXI) requests, transfer error interrupt (ERI) requests, and receive data full interrupt (RXI) requests. The transmit end interrupt (TEI) request is not used in this mode. When the TEND flag in SSR is set to 1, a TXI interrupt request is generated. When the RDRF flag in SSR is set to 1, an RXI interrupt request is generated. When any of flags ORER, PER, and ERS in SSR is set to 1, an ERI interrupt request is generated. The relationship between the operating states and interrupt sources is shown in table 13.8. Table 13.8 Smart Card Mode Operating States and Interrupt Sources Operating State Transmit Mode Normal operation Error Receive Mode Normal operation Error Flag TEND ERS RDRF PER, ORER Enable Bit TIE RIE RIE RIE Interrupt Source TXI ERI RXI ERI DTC Activation Possible Not possible Possible Not possible Data Transfer Operation by DTC: In smart card mode, as with the normal SCI, transfer can be carried out using the DTC. In a transmit operation, the TDRE flag is also set to 1 at the same time as the TEND flag in SSR, and a TXI interrupt is generated. If the TXI request is designated beforehand as a DTC activation source, the DTC will be activated by the TXI request, and transfer of the transmit data will be carried out. The TDRE and TEND flags are automatically cleared to 0 when data transfer is performed by the DTC. In the event of an error, the SCI retransmits the same data automatically. However, the ERS flag is not cleared automatically when an error occurs, and so the RIE bit should be set to 1 beforehand so that an ERI request will be generated in the event of an error, and the ERS flag will be cleared. When performing transfer using the DTC, it is essential to set and enable the DTC before carrying out SCI setting. For details of the DTC setting procedures, see section 8, Data Transfer Controller (DTC). In a receive operation, an RXI interrupt request is generated when the RDRF flag in SSR is set to 1. If the RXI request is designated beforehand as a DTC activation source, the DTC will be activated by the RXI request, and transfer of the receive data will be carried out. The RDRF flag is cleared to 0 automatically when data transfer is performed by the DTC. If an error occurs, an error flag is set but the RDRF flag is not. The DTC is not activated, but instead, an ERI interrupt request is sent to the CPU. Therefore, the error flag should be cleared. 496 13.3.7 Operation in GSM Mode Switching the Mode: When switching between smart card interface mode and software standby mode, the following switching procedure should be followed in order to maintain the clock duty. * When changing from smart card interface mode to software standby mode [1] Set the data register (DR) and data direction register (DDR) corresponding to the SCK pin to the value for the fixed output state in software standby mode. [2] Write 0 to the TE bit and RE bit in the serial control register (SCR) to halt transmit/receive operation. At the same time, set the CKE1 bit to the value for the fixed output state in software standby mode. [3] Write 0 to the CKE0 bit in SCR to halt the clock. [4] Wait for one serial clock period. During this interval, clock output is fixed at the specified level, with the duty preserved. [5] Write H'00 to SMR and SCMR. [6] Make the transition to the software standby state. * When returning to smart card interface mode from software standby mode [7] Exit the software standby state. [8] Set the CKE1 bit in SCR to the value for the fixed output state (current SCK pin state) when software standby mode is initiated. [9] Set smart card interface mode and output the clock. Signal generation is started with the normal duty. Software standby Normal operation Normal operation [1] [2] [3] [4] [5] [6] [7] [8] [9] Figure 13.9 Clock Halt and Restart Procedure 497 Powering On: To secure the clock duty from power-on, the following switching procedure should be followed. [1] The initial state is port input and high impedance. Use a pull-up resistor or pull-down resistor to fix the potential. [2] Fix the SCK pin to the specified output level with the CKE1 bit in SCR. [3] Set SMR and SCMR, and switch to smart card mode operation. [4] Set the CKE0 bit in SCR to 1 to start clock output. 13.4 Usage Note The following points should be noted when using the SCI as a smart card interface. Receive Data Sampling Timing and Reception Margin in Smart Card Interface Mode: In smart card interface mode, the SCI operates on a basic clock with a frequency of 372 times the transfer rate. In reception, the SCI samples the falling edge of the start bit using the basic clock, and performs internal synchronization. Receive data is latched internally at the rising edge of the 186th pulse of the basic clock. This is illustrated in figure 13.10. 498 372 clocks 186 clocks 0 185 371 0 185 371 0 Internal basic clock Receive data (RxD) Start bit D0 D1 Synchronization sampling timing Data sampling timing Figure 13.10 Receive Data Sampling Timing in Smart Card Mode Thus the reception margin in smart card interface mode is given by the following formula. M = (0.5 - 1 2N ) - (L - 0.5) F - D - 0.5 N (1 + F) x 100% Where M: Reception margin (%) N: Ratio of bit rate to clock (N = 372) D: Clock duty (D = 0 to 1.0) L: Frame length (L = 10) F: Absolute value of clock frequency deviation Assuming values of F = 0 and D = 0.5 in the above formula, the reception margin formula is as follows. When D = 0.5 and F = 0, M = (0.5 - 1/2 x 372) x 100% = 49.866% 499 Retransfer Operations: Retransfer operations are performed by the SCI in receive mode and transmit mode as described below. * Retransfer operation when SCI is in receive mode Figure 13.11 illustrates the retransfer operation when the SCI is in receive mode. [1] If an error is found when the received parity bit is checked, the PER bit in SSR is automatically set to 1. If the RIE bit in SCR is enabled at this time, an ERI interrupt request is generated. The PER bit in SSR should be kept cleared to 0 until the next parity bit is sampled. [2] The RDRF bit in SSR is not set for a frame in which an error has occurred. [3] If no error is found when the received parity bit is checked, the PER bit in SSR is not set to 1. [4] If no error is found when the received parity bit is checked, the receive operation is judged to have been completed normally, and the RDRF flag in SSR is automatically set to 1. If the RIE bit in SCR is enabled at this time, an RXI interrupt request is generated. If DTC data transfer by an RXI source is enabled, the contents of RDR can be read automatically. When the RDR data is read by the DTC, the RDRF flag is automatically cleared to 0. [5] When a normal frame is received, the pin retains the high-impedance state at the timing for error signal transmission. Transfer frame n+1 nth transfer frame Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp DE RDRF [2] PER [1] Retransferred frame (DE) Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp Ds D0 D1 D2 D3 D4 [4] [3] Figure 13.11 Retransfer Operation in SCI Receive Mode 500 * Retransfer operation when SCI is in transmit mode Figure 13.12 illustrates the retransfer operation when the SCI is in transmit mode. [6] If an error signal is sent back from the receiving end after transmission of one frame is completed, the ERS bit in SSR is set to 1. If the RIE bit in SCR is enabled at this time, an ERI interrupt request is generated. The ERS bit in SSR should be kept cleared to 0 until the next parity bit is sampled. [7] The TEND bit in SSR is not set for a frame for which an error signal indicating an abnormality is received. [8] If an error signal is not sent back from the receiving end, the ERS bit in SSR is not set. [9] If an error signal is not sent back from the receiving end, transmission of one frame, including a retransfer, is judged to have been completed, and the TEND bit in SSR is set to 1. If the TIE bit in SCR is enabled at this time, a TXI interrupt request is generated. If data transfer by the DTC by means of the TXI source is enabled, the next data can be written to TDR automatically. When data is written to TDR by the DTC, the TDRE bit is automatically cleared to 0. Transfer frame n+1 (DE) Ds D0 D1 D2 D3 D4 nth transfer frame Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp DE TDRE Transfer to TSR from TDR TEND [7] FER/ERS [6] Retransferred frame Ds D0 D1 D2 D3 D4 D5 D6 D7 Dp Transfer to TSR from TDR Transfer to TSR from TDR [9] [8] Figure 13.12 Retransfer Operation in SCI Transmit Mode 501 Section 14 A/D Converter 14.1 Overview The H8S/2345 Series incorporates a successive approximation type 10-bit A/D converter that allows up to eight analog input channels to be selected. 14.1.1 Features A/D converter features are listed below * 10-bit resolution * Eight input channels * Settable analog conversion voltage range Conversion of analog voltages with the reference voltage pin (Vref ) as the analog reference voltage * High-speed conversion Minimum conversion time: 6.7 s per channel (at 20 MHz operation) * Choice of single mode or scan mode Single mode: Single-channel A/D conversion Scan mode: Continuous A/D conversion on 1 to 4 channels * Four data registers Conversion results are held in a 16-bit data register for each channel * Sample and hold function * Three kinds of conversion start Choice of software or timer conversion start trigger (TPU or 8-bit timer), or ADTRG pin * A/D conversion end interrupt generation A/D conversion end interrupt (ADI) request can be generated at the end of A/D conversion * Module stop mode can be set As the initial setting, A/D converter operation is halted. Register access is enabled by exiting module stop mode. 503 14.1.2 Block Diagram Figure 14.1 shows a block diagram of the A/D converter. Module data bus Bus interface A D D R A A D D R B A D D R C A D D R D A D C S R A D C R + Multiplexer - Comparator Sample-andhold circuit Control circuit Internal data bus AVCC Vref AVSS 10-bit D/A AN0 AN1 AN2 AN3 AN4 AN5 AN6 AN7 Successive approximations register ADI interrupt ADTRG Conversion start trigger from 8-bit timer or TPU ADCR : A/D control register ADCSR : A/D control/status register ADDRA : A/D data register A ADDRB : A/D data register B ADDRC : A/D data register C ADDRD : A/D data register D Figure 14.1 Block Diagram of A/D Converter 504 14.1.3 Pin Configuration Table 14.1 summarizes the input pins used by the A/D converter. The AVCC and AVSS pins are the power supply pins for the analog block in the A/D converter. The Vref pin is the A/D conversion reference voltage pin. The eight analog input pins are divided into two groups: group 0 (AN0 to AN3), and group 1 (AN4 to AN7). Table 14.1 A/D Converter Pins Pin Name Analog power supply pin Analog ground pin Reference voltage pin Analog input pin 0 Analog input pin 1 Analog input pin 2 Analog input pin 3 Analog input pin 4 Analog input pin 5 Analog input pin 6 Analog input pin 7 Symbol AVCC AVSS Vref AN0 AN1 AN2 AN3 AN4 AN5 AN6 AN7 I/O Input Input Input Input Input Input Input Input Input Input Input Input External trigger input for starting A/D conversion Group 1 analog inputs Function Analog block power supply Analog block ground and A/D conversion reference voltage A/D conversion reference voltage Group 0 analog inputs A/D external trigger input pin ADTRG 505 14.1.4 Register Configuration Table 14.2 summarizes the registers of the A/D converter. Table 14.2 A/D Converter Registers Name A/D data register AH A/D data register AL A/D data register BH A/D data register BL A/D data register CH A/D data register CL A/D data register DH A/D data register DL A/D control/status register A/D control register Module stop control register Abbreviation ADDRAH ADDRAL ADDRBH ADDRBL ADDRCH ADDRCL ADDRDH ADDRDL ADCSR ADCR MSTPCR R/W R R R R R R R R R/(W)* R/W R/W 2 Initial Value H'00 H'00 H'00 H'00 H'00 H'00 H'00 H'00 H'00 H'3F H'3FFF Address*1 H'FF90 H'FF91 H'FF92 H'FF93 H'FF94 H'FF95 H'FF96 H'FF97 H'FF98 H'FF99 H'FF3C Notes: 1. Lower 16 bits of the address. 2. Bit 7 can only be written with 0 for flag clearing. 506 14.2 14.2.1 Bit Register Descriptions A/D Data Registers A to D (ADDRA to ADDRD) : 15 0 R 14 0 R 13 0 R 12 0 R 11 0 R 10 0 R 9 0 R 8 0 R 7 0 R 6 0 R 5 0 R 4 -- 0 R 3 -- 0 R 2 -- 0 R 1 -- 0 R 0 -- 0 R AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 -- Initial value : R/W : There are four 16-bit read-only ADDR registers, ADDRA to ADDRD, used to store the results of A/D conversion. The 10-bit data resulting from A/D conversion is transferred to the ADDR register for the selected channel and stored there. The upper 8 bits of the converted data are transferred to the upper byte (bits 15 to 8) of ADDR, and the lower 2 bits are transferred to the lower byte (bits 7 and 6) and stored. Bits 5 to 0 are always read as 0. The correspondence between the analog input channels and ADDR registers is shown in table 14.3. ADDR can always be read by the CPU. The upper byte can be read directly, but for the lower byte, data transfer is performed via a temporary register (TEMP). For details, see section 14.3, Interface to Bus Master. The ADDR registers are initialized to H'0000 by a reset, and in standby mode or module stop mode. Table 14.3 Analog Input Channels and Corresponding ADDR Registers Analog Input Channel Group 0 AN0 AN1 AN2 AN3 Group 1 AN4 AN5 AN6 AN7 A/D Data Register ADDRA ADDRB ADDRC ADDRD 507 14.2.2 Bit A/D Control/Status Register (ADCSR) : 7 ADF 0 R/(W)* 6 ADIE 0 R/W 5 ADST 0 R/W 4 SCAN 0 R/W 3 CKS 0 R/W 2 CH2 0 R/W 1 CH1 0 R/W 0 CH0 0 R/W Initial value : R/W : Note: * Only 0 can be written to bit 7, to clear this flag. ADCSR is an 8-bit readable/writable register that controls A/D conversion operations and shows the status of the operation. ADCSR is initialized to H'00 by a reset, and in hardware standby mode or module stop mode. Bit 7--A/D End Flag (ADF): Status flag that indicates the end of A/D conversion. Bit 7 ADF 0 Description [Clearing conditions] * * 1 When 0 is written to the ADF flag after reading ADF = 1 When the DTC is activated by an ADI interrupt and ADDR is read (Initial value) [Setting conditions] * * Single mode: When A/D conversion ends Scan mode: When A/D conversion ends on all specified channels Bit 6--A/D Interrupt Enable (ADIE): Selects enabling or disabling of interrupt (ADI) requests at the end of A/D conversion. Bit 6 ADIE 0 1 Description A/D conversion end interrupt (ADI) request disabled A/D conversion end interrupt (ADI) request enabled (Initial value) 508 Bit 5--A/D Start (ADST): Selects starting or stopping on A/D conversion. Holds a value of 1 during A/D conversion. The ADST bit can be set to 1 by software, a timer conversion start trigger, or the A/D external trigger input pin (ADTRG). Bit 5 ADST 0 1 Description * * * A/D conversion stopped (Initial value) Single mode: A/D conversion is started. Cleared to 0 automatically when conversion on the specified channel ends Scan mode: A/D conversion is started. Conversion continues sequentially on the selected channels until ADST is cleared to 0 by software, a reset, or a transition to standby mode or module stop mode. Bit 4--Scan Mode (SCAN): Selects single mode or scan mode as the A/D conversion operating mode. See section 14.4, Operation, for single mode and scan mode operation. Only set the SCAN bit while conversion is stopped. Bit 4 SCAN 0 1 Description Single mode Scan mode (Initial value) Bit 3--Clock Select (CKS): Sets the A/D conversion time. Only change the conversion time while ADST = 0. Bit 3 CKS 0 1 Description Conversion time = 266 states (max.) Conversion time = 134 states (max.) (Initial value) Bits 2 to 0--Channel Select 2 to 0 (CH2 to CH0): Together with the SCAN bit, these bits select the analog input channels. Only set the input channel while conversion is stopped. 509 Group Selection CH2 0 Channel Selection CH1 0 CH2 0 1 1 0 1 Single Mode AN0 (Initial value) AN1 AN2 AN3 AN4 AN5 AN6 AN7 Description Scan Mode AN0 AN0, AN1 AN0 to AN2 AN0 to AN3 AN4 AN4, AN5 AN4 to AN6 AN4 to AN7 1 0 0 1 1 0 1 14.2.3 Bit A/D Control Register (ADCR) : 7 TRGS1 0 R/W 6 TRGS0 0 R/W 5 -- 1 -- 4 -- 1 -- 3 -- 1 R/W 2 -- 1 -- 1 -- 1 -- 0 -- 1 -- Initial value : R/W : ADCR is an 8-bit readable/writable register that enables or disables external triggering of A/D conversion operations. ADCR is initialized to H'3F by a reset, and in standby mode or module stop mode. Bits 7 and 6--Timer Trigger Select 1 and 0 (TRGS1, TRGS0): Select enabling or disabling of the start of A/D conversion by a trigger signal. Only set bits TRGS1 and TRGS0 while conversion is stopped. Bit 7 TRGS1 0 Bit 6 TRGS0 0 1 1 0 1 Description A/D conversion start by external trigger is disabled A/D conversion start by external trigger (TPU) is enabled A/D conversion start by external trigger (8-bit timer) is enabled A/D conversion start by external trigger pin (ADTRG) is enabled (Initial value) Bits 5 to 0--Reserved: These bits are reserved; write as 1 in a write. 510 14.2.4 Module Stop Control Register (MSTPCR) MSTPCRH MSTPCRL 10 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 Bit : 15 0 14 0 13 1 12 1 11 1 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W MSTPCR is a 16-bit readable/writable register that performs module stop mode control. When the MSTP9 bit in MSTPCR is set to 1, A/D converter operation stops at the end of the bus cycle and a transition is made to module stop mode. Registers cannot be read or written to in module stop mode. For details, see section 19.5, Module Stop Mode. MSTPCR is initialized to H'3FFF by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 9--Module Stop (MSTP9): Specifies the A/D converter module stop mode. Bit 9 MSTP9 0 1 Description A/D converter module stop mode cleared A/D converter module stop mode set (Initial value) 511 14.3 Interface to Bus Master ADDRA to ADDRD are 16-bit registers, and the data bus to the bus master is 8 bits wide. Therefore, in accesses by the bus master, the upper byte is accessed directly, but the lower byte is accessed via a temporary register (TEMP). A data read from ADDR is performed as follows. When the upper byte is read, the upper byte value is transferred to the CPU and the lower byte value is transferred to TEMP. Next, when the lower byte is read, the TEMP contents are transferred to the CPU. When reading ADDR. always read the upper byte before the lower byte. It is possible to read only the upper byte, but if only the lower byte is read, incorrect data may be obtained. Figure 14.2 shows the data flow for ADDR access. Upper byte read Bus master (H'AA) Bus interface Module data bus TEMP (H'40) ADDRnH (H'AA) ADDRnL (H'40) (n = A to D) Lower byte read Bus master (H'40) Module data bus Bus interface TEMP (H'40) ADDRnH (H'AA) ADDRnL (H'40) (n = A to D) Figure 14.2 ADDR Access Operation (Reading H'AA40) 512 14.4 Operation The A/D converter operates by successive approximation with 10-bit resolution. It has two operating modes: single mode and scan mode. 14.4.1 Single Mode (SCAN = 0) Single mode is selected when A/D conversion is to be performed on a single channel only. A/D conversion is started when the ADST bit is set to 1, according to the software or external trigger input. The ADST bit remains set to 1 during A/D conversion, and is automatically cleared to 0 when conversion ends. On completion of conversion, the ADF flag is set to 1. If the ADIE bit is set to 1 at this time, an ADI interrupt request is generated. The ADF flag is cleared by writing 0 after reading ADCSR. When the operating mode or analog input channel must be changed during analog conversion, to prevent incorrect operation, first clear the ADST bit to 0 in ADCSR to halt A/D conversion. After making the necessary changes, set the ADST bit to 1 to start A/D conversion again. The ADST bit can be set at the same time as the operating mode or input channel is changed. Typical operations when channel 1 (AN1) is selected in single mode are described next. Figure 14.3 shows a timing diagram for this example. [1] Single mode is selected (SCAN = 0), input channel AN1 is selected (CH2 = 0, CH1 = 0, CH0 = 1), the A/D interrupt is enabled (ADIE = 1), and A/D conversion is started (ADST = 1). [2] When A/D conversion is completed, the result is transferred to ADDRB. At the same time the ADF flag is set to 1, the ADST bit is cleared to 0, and the A/D converter becomes idle. [3] Since ADF = 1 and ADIE = 1, an ADI interrupt is requested. [4] The A/D interrupt handling routine starts. [5] The routine reads ADCSR, then writes 0 to the ADF flag. [6] The routine reads and processes the connection result (ADDRB). [7] Execution of the A/D interrupt handling routine ends. After that, if the ADST bit is set to 1, A/D conversion starts again and steps [2] to [7] are repeated. 513 Set* ADIE ADST ADF State of channel 0 (AN0) State of channel 1 (AN1) State of channel 2 (AN2) State of channel 3 (AN3) Idle Idle Idle Idle A/D conversion 1 A/D conversion starts Set* Clear* Set* Clear* Idle A/D conversion 2 Idle ADDRA ADDRB ADDRC ADDRD Read conversion result A/D conversion result 1 Read conversion result A/D conversion result 2 Note: * Vertical arrows ( ) indicate instructions executed by software. Figure 14.3 Example of A/D Converter Operation (Single Mode, Channel 1 Selected) 514 14.4.2 Scan Mode (SCAN = 1) Scan mode is useful for monitoring analog inputs in a group of one or more channels. When the ADST bit is set to 1 by a software, timer or external trigger input, A/D conversion starts on the first channel in the group (AN0). When two or more channels are selected, after conversion of the first channel ends, conversion of the second channel (AN1) starts immediately. A/D conversion continues cyclically on the selected channels until the ADST bit is cleared to 0. The conversion results are transferred for storage into the ADDR registers corresponding to the channels. When the operating mode or analog input channel must be changed during analog conversion, to prevent incorrect operation, first clear the ADST bit to 0 in ADCSR to halt A/D conversion. After making the necessary changes, set the ADST bit to 1 to start A/D conversion again. The ADST bit can be set at the same time as the operating mode or input channel is changed. Typical operations when three channels (AN0 to AN2) are selected in scan mode are described next. Figure 14.4 shows a timing diagram for this example. [1] Scan mode is selected (SCAN = 1), scan group 0 is selected (CH2 = 0), analog input channels AN0 to AN2 are selected (CH1 = 1, CH0 = 0), and A/D conversion is started (ADST = 1) [2] When A/D conversion of the first channel (AN0) is completed, the result is transferred to ADDRA. Next, conversion of the second channel (AN1) starts automatically. [3] Conversion proceeds in the same way through the third channel (AN2). [4] When conversion of all the selected channels (AN0 to AN2) is completed, the ADF flag is set to 1 and conversion of the first channel (AN0) starts again. If the ADIE bit is set to 1 at this time, an ADI interrupt is requested after A/D conversion ends. [5] Steps [2] to [4] are repeated as long as the ADST bit remains set to 1. When the ADST bit is cleared to 0, A/D conversion stops. After that, if the ADST bit is set to 1, A/D conversion starts again from the first channel (AN0). 515 Continuous A/D conversion execution Set*1 ADST ADF A/D conversion time State of channel 0 (AN0) State of channel 1 (AN1) State of channel 2 (AN2) State of channel 3 (AN3) Transfer ADDRA ADDRB ADDRC ADDRD Notes: 1. Vertical arrows ( ) indicate instructions executed by software. 2. Data currently being converted is ignored. A/D conversion result 1 A/D conversion result 4 A/D conversion result 2 A/D conversion result 3 Idle Idle Idle A/D conversion 1 Clear*1 Clear*1 Idle A/D conversion 2 A/D conversion 4 Idle A/D conversion 5 *2 Idle A/D conversion 3 Idle Idle Idle Figure 14.4 Example of A/D Converter Operation (Scan Mode, Channels AN0 to AN2 Selected) 516 14.4.3 Input Sampling and A/D Conversion Time The A/D converter has a built-in sample-and-hold circuit. The A/D converter samples the analog input at a time tD after the ADST bit is set to 1, then starts conversion. Figure 14.5 shows the A/D conversion timing. Table 14.4 indicates the A/D conversion time. As indicated in figure 14.5, the A/D conversion time includes t D and the input sampling time. The length of tD varies depending on the timing of the write access to ADCSR. The total conversion time therefore varies within the ranges indicated in table 14.4. In scan mode, the values given in table 14.4 apply to the first conversion time. In the second and subsequent conversions the conversion time is fixed at 256 states when CKS = 0 or 128 states when CKS = 1. (1) o Address bus (2) Write signal Input sampling timing ADF tD t SPL t CONV Legend (1) : (2) : : tD : tSPL tCONV : ADCSR write cycle ADCSR address A/D conversion start delay Input sampling time A/D conversion time Figure 14.5 A/D Conversion Timing 517 Table 14.4 A/D Conversion Time (Single Mode) CKS = 0 Item A/D conversion start delay Input sampling time A/D conversion time Symbol tD t SPL t CONV Min 10 -- 259 Typ -- 63 -- Max 17 -- 266 Min 6 -- 131 CKS = 1 Typ -- 31 -- Max 9 -- 134 Note: Values in the table are the number of states. 14.4.4 External Trigger Input Timing A/D conversion can be externally triggered. When the TRGS1 and TRGS0 bits are set to 11 in ADCR, external trigger input is enabled at the ADTRG pin. A falling edge at the ADTRG pin sets the ADST bit to 1 in ADCSR, starting A/D conversion. Other operations, in both single and scan modes, are the same as if the ADST bit has been set to 1 by software. Figure 14.6 shows the timing. o ADTRG Internal trigger signal ADST A/D conversion Figure 14.6 External Trigger Input Timing 518 14.5 Interrupts The A/D converter generates an A/D conversion end interrupt (ADI) at the end of A/D conversion. ADI interrupt requests can be enabled or disabled by means of the ADIE bit in ADCSR. The DTC can be activated by an ADI interrupt. Having the converted data read by the DTC in response to an ADI interrupt enables continuous conversion to be achieved without imposing a load on software. The A/D converter interrupt source is shown in table 14.5. Table 14.5 A/D Converter Interrupt Source Interrupt Source ADI Description Interrupt due to end of conversion DTC Activation Possible 14.6 Usage Notes The following points should be noted when using the A/D converter. Setting Range of Analog Power Supply and Other Pins: (1) Analog input voltage range The voltage applied to analog input pins AN0 to AN7 during A/D conversion should be in the range AVSS ANn Vref. (2) Relation between AV CC, AVSS and V CC, VSS As the relationship between AVCC, AVSS and V CC, VSS, set, AV CC = VCC and AVSS = VSS . If the A/D converter is not used, the AVCC and AVSS pins must on no account be left open. (3) Vref input range The analog reference voltage input at the V ref pin set in the range Vref AVCC. If conditions (1), (2), and (3) above are not met, the reliability of the device may be adversely affected. Notes on Board Design: In board design, digital circuitry and analog circuitry should be as mutually isolated as possible, and layout in which digital circuit signal lines and analog circuit signal lines cross or are in close proximity should be avoided as far as possible. Failure to do so may result in incorrect operation of the analog circuitry due to inductance, adversely affecting A/D conversion values. 519 Also, digital circuitry must be isolated from the analog input signals (AN0 to AN7), analog reference power supply (Vref ), and analog power supply (AVCC) by the analog ground (AVSS ). Also, the analog ground (AVSS) should be connected at one point to a stable digital ground (VSS) on the board. Notes on Noise Countermeasures: A protection circuit connected to prevent damage due to an abnormal voltage such as an excessive surge at the analog input pins (AN0 to AN7) and analog reference power supply (Vref) should be connected between AVCC and AVSS as shown in figure 14.7. Also, the bypass capacitors connected to AVCC and Vref and the filter capacitor connected to AN0 to AN7 must be connected to AVSS . If a filter capacitor is connected as shown in figure 14.7, the input currents at the analog input pins (AN0 to AN7) are averaged, and so an error may arise. Also, when A/D conversion is performed frequently, as in scan mode, if the current charged and discharged by the capacitance of the sample-and-hold circuit in the A/D converter exceeds the current input via the input impedance (Rin ), an error will arise in the analog input pin voltage. Careful consideration is therefore required when deciding the circuit constants. AVCC Vref Rin* 2 *1 *1 0.1 F 100 AN0 to AN7 AVSS Notes: Values are reference values. 1. 10 F 0.01 F 2. Rin: Input impedance Figure 14.7 Example of Analog Input Protection Circuit 520 Table 14.6 Analog Pin Specifications Item Analog input capacitance Permissible signal source impedance Min -- -- Max 20 10* Unit pF k Note: * When VCC = 4.0 V to 5.5 V and o 12 MHz 10 k AN0 to AN7 To A/D converter 20 pF Note: Values are reference values. Figure 14.8 Analog Input Pin Equivalent Circuit A/D Conversion Precision Definitions: H8S/2345 Series A/D conversion precision definitions are given below. * Resolution The number of A/D converter digital output codes * Offset error The deviation of the analog input voltage value from the ideal A/D conversion characteristic when the digital output changes from the minimum voltage value B'0000000000 (H'000) to B'0000000001 (H'001) (see figure 14.10). * Full-scale error The deviation of the analog input voltage value from the ideal A/D conversion characteristic when the digital output changes from B'1111111110 (H'3FE) to B'1111111111 (H'3FF) (see figure 14.10). * Quantization error The deviation inherent in the A/D converter, given by 1/2 LSB (see figure 14.9). * Nonlinearity error The error with respect to the ideal A/D conversion characteristic between the zero voltage and the full-scale voltage. Does not include the offset error, full-scale error, or quantization error. 521 * Absolute precision The deviation between the digital value and the analog input value. Includes the offset error, full-scale error, quantization error, and nonlinearity error. Digital output H'3FF H'3FE H'3FD Ideal A/D conversion characteristic H'002 H'001 H'000 Quantization error 1 2 1024 1024 1022 1023 1024 1024 FS Analog input voltage Figure 14.9 A/D Conversion Precision Definitions (1) 522 Digital output Full-scale error Ideal A/D conversion characteristic Nonlinearity error Actual A/D conversion characteristic FS Offset error Analog input voltage Figure 14.10 A/D Conversion Precision Definitions (2) Permissible Signal Source Impedance: H8S/2345 Series analog input is designed so that conversion precision is guaranteed for an input signal for which the signal source impedance is 10 k or less. This specification is provided to enable the A/D converter's sample-and-hold circuit input capacitance to be charged within the sampling time; if the sensor output impedance exceeds 10 k, charging may be insufficient and it may not be possible to guarantee the A/D conversion precision. However, if a large capacitance is provided externally, the input load will essentially comprise only the internal input resistance of 10 k, and the signal source impedance is ignored. However, since a low-pass filter effect is obtained in this case, it may not be possible to follow an analog signal with a large differential coefficient (e.g., 5 mV/s or greater). When converting a high-speed analog signal, a low-impedance buffer should be inserted. 523 Influences on Absolute Precision: Adding capacitance results in coupling with GND, and therefore noise in GND may adversely affect absolute precision. Be sure to make the connection to an electrically stable GND such as AVSS. Care is also required to insure that filter circuits do not communicate with digital signals on the mounting board, so acting as antennas. H8/2345 Series Sensor output impedance to 10 k Sensor input Low-pass filter C to 0.1 F Cin = 15 pF A/D converter equivalent circuit 10 k 20 pF Note: Values are reference values. Figure 14.11 Example of Analog Input Circuit 524 Section 15 D/A Converter 15.1 Overview The H8S/2345 Series includes a two-channel D/A converter. 15.1.1 Features D/A converter features are listed below * * * * * 8-bit resolution Two output channels Maximum conversion time of 10 s (with 20 pF load) Output voltage of 0 V to Vref D/A output hold function in software standby mode 525 15.1.2 Block Diagram Figure 15.1 shows a block diagram of the D/A converter. Module data bus Bus interface DACR Internal data bus Vref AVCC DADR0 8-bit DA1 D/A DA0 AVSS DADR1 Control circuit Figure 15.1 Block Diagram of D/A Converter 526 15.1.3 Pin Configuration Table 15.1 summarizes the input and output pins of the D/A converter. Table 15.1 Pin Configuration Pin Name Analog power pin Analog ground pin Analog output pin 0 Analog output pin 1 Reference voltage pin Symbol AVCC AVSS DA0 DA1 Vref I/O Input Input Output Output Input Function Analog power source Analog ground and reference voltage Channel 0 analog output Channel 1 analog output Analog reference voltage 15.1.4 Register Configuration Table 15.2 summarizes the registers of the D/A converter. Table 15.2 D/A Converter Registers Name D/A data register 0 D/A data register 1 D/A control register Module stop control register Abbreviation DADR0 DADR1 DACR MSTPCR R/W R/W R/W R/W R/W Initial Value H'00 H'00 H'1F H'3FFF Address* H'FFA4 H'FFA5 H'FFA6 H'FF3C Note:* Lower 16 bits of the address. 527 15.2 15.2.1 Bit Register Descriptions D/A Data Registers 0 and 1 (DADR0, DADR1) : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Initial value: R/W : DADR0 and DADR1 are 8-bit readable/writable registers that store data for conversion. Whenever output is enabled, the values in DADR0 and DADR1 are converted and output from the analog output pins. DADR0 and DADR1 are each initialized to H'00 by a reset and in hardware standby mode. 15.2.2 Bit D/A Control Register (DACR) : 7 DAOE1 0 R/W 6 DAOE0 0 R/W 5 DAE 0 R/W 4 -- 1 -- 3 -- 1 -- 2 -- 1 -- 1 -- 1 -- 0 -- 1 -- Initial value: R/W : DACR is an 8-bit readable/writable register that controls the operation of the D/A converter. DACR is initialized to H'1F by a reset and in hardware standby mode. Bit 7--D/A Output Enable 1 (DAOE1): Controls D/A conversion and analog output for channel 1. Bit 7 DAOE1 0 1 Description Analog output DA1 is disabled Channel 1 D/A conversion is enabled; analog output DA1 is enabled (Initial value) 528 Bit 6--D/A Output Enable 0 (DAOE0): Controls D/A conversion and analog output for channel 0. Bit 6 DAOE0 0 1 Description Analog output DA0 is disabled Channel 0 D/A conversion is enabled; analog output DA0 is enabled (Initial value) Bit 5--D/A Enable (DAE): The DAOE0 and DAOE1 bits both control D/A conversion. When the DAE bit is cleared to 0, the channel 0 and 1 D/A conversions are controlled independently. When the DAE bit is set to 1, the channel 0 and 1 D/A conversions are controlled together. Output of resultant conversions is always controlled independently by the DAOE0 and DAOE1 bits. Bit 7 DAOE1 0 Bit 6 DAOE0 0 1 Bit 5 DAE * 0 1 1 0 0 1 1 * Description Channel 0 and 1 D/A conversions disabled Channel 0 D/A conversion enabled Channel 1 D/A conversion disabled Channel 0 and 1 D/A conversions enabled Channel 0 D/A conversion disabled Channel 1 D/A conversion enabled Channel 0 and 1 D/A conversions enabled Channel 0 and 1 D/A conversions enabled *: Don't care If the H8S/2345 Series enters software standby mode when D/A conversion is enabled, the D/A output is held and the analog power current is the same as during D/A conversion. When it is necessary to reduce the analog power current in software standby mode, clear the DAE, DAOE0 and DAOE1 bits to 0 to disable D/A output. Bits 4 to 0--Reserved: Read-only bits, always read as 1. 529 15.2.3 Module Stop Control Register (MSTPCR) MSTPCRH MSTPCRL 10 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 Bit : 15 0 14 0 13 1 12 1 11 1 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W MSTPCR is a 16-bit readable/writable register that performs module stop mode control. When the MSTP10 bit in MSTPCR is set to 1, D/A converter operation stops at the end of the bus cycle and a transition is made to module stop mode. Registers cannot be read or written to in module stop mode. For details, see section 19.5, Module Stop Mode. MSTPCR is initialized to H'3FFF by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 10--Module Stop (MSTP10): Specifies the D/A converter module stop mode. Bit 10 MSTP10 0 1 Description D/A converter module stop mode cleared D/A converter module stop mode set (Initial value) 530 15.3 Operation The D/A converter includes D/A conversion circuits for two channels, each of which can operate independently. D/A conversion is performed continuously while enabled by DACR. If either DADR0 or DADR1 is written to, the new data is immediately converted. The conversion result is output by setting the corresponding DAOE0 or DAOE1 bit to 1. The operation example described in this section concerns D/A conversion on channel 0. Figure 15.2 shows the timing of this operation. [1] Write the conversion data to DADR0. [2] Set the DAOE0 bit in DACR to 1. D/A conversion is started and the DA0 pin becomes an output pin. The conversion result is output after the conversion time has elapsed. The output value is expressed by the following formula: DADR contents x Vref 256 The conversion results are output continuously until DADR0 is written to again or the DAOE0 bit is cleared to 0. [3] If DADR0 is written to again, the new data is immediately converted. The new conversion result is output after the conversion time has elapsed. [4] If the DAOE0 bit is cleared to 0, the DA0 pin becomes an input pin. 531 DADR0 write cycle DACR write cycle DADR0 write cycle DACR write cycle o Address DADR0 Conversion data 1 Conversion data 2 DAOE0 DA0 High-impedance state tDCONV Legend tDCONV: D/A conversion time Conversion result 1 tDCONV Conversion result 2 Figure 15.2 Example of D/A Converter Operation 15.4 Usage Notes Setting range for pins other than analog power pin (1) Relationship between AVCC, VCC, AVSS, and Vss The relationship between AVCC, VCC, AVSS, and VSS is AVCC = VCC and AVSS = VSS . Also, the AVCC and AVSS pins should never be left open, even if the D/A converter is not used. (2) Vref setting range The setting range for the reference voltage from the Vref pin is Vref AV CC. Note: Failure to observe (1) and (2) above could have an adverse effect on the reliability of the LSI. 532 Section 16 RAM 16.1 Overview The H8S/2345 and H8S/2344 have 4 kbytes of on-chip high-speed static RAM, and the H8S/2343, H8S/2341, and H8S/2340 have 2 kbytes. The RAM is connected to the CPU by a 16-bit data bus, enabling one-state access by the CPU to both byte data and word data. This makes it possible to perform fast word data transfer. The on-chip RAM of the H8S/2345 and H8S/2344 is allocated addresses H'EC00 to H'FBFF (4 kbytes) in the normal modes (modes 1 to 3)*, and addresses H'FFEC00 to H'FFFBFF (4 kbytes) in the advanced modes (modes 4 to 7). The on-chip RAM of the H8S/2343, H8S/2341, and H8S/2340 is allocated addresses H'F400 to H'FBFF (2 kbytes) in the normal modes (modes 1 to 3)*, and addresses H'FFF400 to H'FFFBFF (2 kbytes) in the advanced modes (modes 4 to 7). The on-chip RAM can be enabled or disabled by means of the RAM enable bit (RAME) in the system control register (SYSCR). Note: * ZTAT, mask ROM, and ROMless versions only. 533 16.1.1 Block Diagram Figure 16.1 shows a block diagram of the on-chip RAM. Internal data bus (upper 8 bits) Internal data bus (lower 8 bits) H'FFEC00 H'FFEC02 H'FFEC04 H'FFEC01 H'FFEC03 H'FFEC05 H'FFFBFE H'FFFBFF Figure 16.1 Block Diagram of RAM (H8S/2345, Advanced Mode) 16.1.2 Register Configuration The on-chip RAM is controlled by SYSCR. Table 16.1 shows the address and initial value of SYSCR. Table 16.1 RAM Register Name System control register Abbreviation SYSCR R/W R/W Initial Value H'01 Address* H'FF39 Note: * Lower 16 bits of the address. 534 16.2 16.2.1 Bit Register Descriptions System Control Register (SYSCR) : 7 -- 0 R/W 6 -- 0 R/W 5 INTM1 0 R/W 4 INTM0 0 R/W 3 NMIEG 0 R/W 2 -- 0 R/W 1 -- 0 R/W 0 RAME 1 R/W Initial value : R/W : The on-chip RAM is enabled or disabled by the RAME bit in SYSCR. For details of other bits in SYSCR, see section 3.2.2, System Control Register (SYSCR). Bit 0--RAM Enable (RAME): Enables or disables the on-chip RAM. The RAME bit is initialized when the reset state is released. It is not initialized in software standby mode. Bit 0 RAME 0 1 Description On-chip RAM is disabled On-chip RAM is enabled (Initial value) 16.3 Operation When the RAME bit is set to 1, accesses to addresses H'FFEC00 to H'FFFBFF (in the case of the H8S/2345 and H8S/2344) or addresses H'FFF400 to H'FFFBFF (in the case of the H8S/2343, H8S/2341, and H8S/2340) are directed to the on-chip RAM. When the RAME bit is cleared to 0, the off-chip address space is accessed. Since the on-chip RAM is connected to the CPU by an internal 16-bit data bus, it can be written to and read in byte or word units. Each type of access can be performed in one state. Even addresses use the upper 8 bits, and odd addresses use the lower 8 bits. Word data must start at an even address. 16.4 Usage Note DTC register information can be located in addresses H'FFF800 to H'FFFBFF. When the DTC is used, the RAME bit must not be cleared to 0. 535 Section 17 ROM 17.1 Overview The H8S/2345 has 128 kbytes of on-chip ROM (flash memory, PROM, or mask ROM); the H8S/2344 has 96 kbytes of on-chip ROM (mask ROM); the H8S/2343 has 64 kbytes of on-chip ROM (mask ROM); and the H8S/2341 has 32 kbytes of on-chip ROM (mask ROM). The ROM is connected to the H8S/2000 CPU by a 16-bit data bus. The CPU accesses both byte data and word data in one state, making possible rapid instruction fetches and high-speed processing. The on-chip ROM is enabled or disabled by setting the mode pins (MD2, MD1, and MD0) and bit EAE in BCRL. The flash memory versions of the H8S/2345 Series can be erased and programmed on-board as well as with a PROM programmer. The PROM version of the H8S/2345 Series can be programmed with a PROM programmer, by setting PROM mode. 17.1.1 Block Diagram Figure 17.1 shows a block diagram of the on-chip ROM. Internal data bus (upper 8 bits) Internal data bus (lower 8 bits) H'000000 H'000002 H'000001 H'000003 H'01FFFE H'01FFFF Figure 17.1 Block Diagram of ROM (H8S/2345) 537 17.1.2 Register Configuration The H8S/2345's on-chip ROM is controlled by the mode pins and register BCRL. The register configuration is shown in table 17.1. Table 17.1 ROM Register Name Mode control register Bus control register L Abbreviation MDCR BCRL R/W R/W R/W Initial Value Undefined Undefined Address* H'FF3B H'FED5 Note: * Lower 16 bits of the address. 17.2 17.2.1 Bit Register Descriptions Mode Control Register (MDCR) : 7 -- 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- 3 -- 0 -- 2 MDS2 --* R 1 MDS1 --* R 0 MDS0 --* R Initial value : R/W : 1 -- Note: * Determined by pins MD2 to MD0. MDCR is an 8-bit read-only register that indicates the current operating mode of the H8S/2345 Series. Bit 7--Reserved: Read-only bit, always read as 1. Bits 6 to 3--Reserved: Read-only bits, always read as 0. Bits 2 to 0--Mode Select 2 to 0 (MDS2 to MDS0): These bits indicate the input levels at pins MD2 to MD0 (the current operating mode). Bits MDS2 to MDS0 correspond to pins MD2 to MD0. MDS2 to MDS0 are read-only bits, and cannot be written to. The mode pin (MD2 to MD0) input levels are latched into these bits when MDCR is read. These latches are canceled by a power-on reset, but are retained after a manual reset. 538 17.2.2 Bit Bus Control Register L (BCRL) : 7 BRLE 6 -- 0 R/W 5 EAE 1 R/W 4 -- 1 R/W 3 -- 1 R/W 2 -- 1 R/W 1 -- 0 R/W 0 WAITE 0 R/W Initial value : R/W : 0 R/W Enabling or disabling of part of the H8S/2345's on-chip ROM area can be selected by means of the EAE bit in BCRL. For details of the other bits in BCRL, see 6.2.5, Bus Control Register L. Bit 5--External Address Enable (EAE): Selects whether addresses H'010000 to H'01FFFF are to be internal addresses or external addresses. Bit 5 EAE 0 Description Addresses H'010000 to H'01FFFF are in on-chip ROM (H8S/2345). Addresses H'010000 to H'017FFF are in on-chip ROM and addresses H'018000 to H'01FFFF are a reserved area (in the H8S/2344). Addresses H'010000 to H'01FFFF are a reserved area (in the H8S/2343 and H8S/2341). 1 Addresses H'010000 to H'01FFFF are external addresses (external expansion mode) or a reserved area* (single-chip mode). (Initial value) Note: * Reserved areas should not be accessed. 17.3 Operation The on-chip ROM is connected to the CPU by a 16-bit data bus, and both byte and word data can be accessed in one state. Even addresses are connected to the upper 8 bits, and odd addresses to the lower 8 bits. Word data must start at an even address. The on-chip ROM is enabled and disabled by setting the mode pins (MD 2, MD1, and MD0) and bit EAE in BCRL. These settings are shown in tables 17.2 and 17.3. 539 Table 17.2 Operating Modes and ROM Area (F-ZTAT) Mode Pin Operating Mode Mode 0 Mode 1 Mode 2 Mode 3 Mode 4 Mode 5 Mode 6 Advanced expanded mode with on-chip ROM disabled Advanced expanded mode with on-chip ROM disabled Advanced expanded mode with on-chip ROM enabled Advanced single-chip mode 1 1 0 1 -- FWE MD2 0 0 MD1 0 MD0 0 1 0 1 0 1 0 0 1 1 0 1 Mode 8 Mode 9 Mode 10 Boot mode (advanced expanded mode with onchip ROM enabled)*3 Mode 11 Boot mode (advanced single-chip mode)*4 Mode 12 -- Mode 13 Mode 14 User program mode (advanced expanded mode with on-chip ROM enabled)*3 Mode 15 User program mode (advanced single-chip mode)*4 1 1 0 1 -- 1 0 0 0 1 0 0 1 1 0 1 0 1 0 0 1 1 0 1 Enabled (128 kbytes)*1 Enabled (64 kbytes) Enabled (128 kbytes)*1 Enabled (64 kbytes) -- Enabled (128 kbytes)*2 Enabled (64 kbytes) Enabled (128 kbytes)*2 Enabled (64 kbytes) -- -- Enabled (128 kbytes)*1 Enabled (64 kbytes) Enabled (128 kbytes)*1 Enabled (64 kbytes) -- -- Disabled BCRL EAE -- On-Chip ROM -- Mode 7 Notes: 1. Note that in modes 6, 7, 14, and 15, the on-chip ROM that can be used after a poweron reset is the 64-kbyte area from H'000000 to H'00FFFF. 2. Note that in the mode 10 and mode 11 boot modes, the on-chip ROM that can be used immediately after all flash memory is erased by the boot program is the 64-kbyte area from H'000000 to H'00FFFF. 3. Apart from the fact that flash memory can be erased and programmed, operation is the same as in advanced expanded mode with on-chip ROM enabled. 540 4. Apart from the fact that flash memory can be erased and programmed, operation is the same as in advanced single-chip mode. Table 17.3 Operating Modes and ROM Area (ZTAT or Mask ROM) Mode Pin Operating Mode Mode 0 Mode 1 -- Normal expanded mode with on-chip ROM disabled 1 MD2 0 MD1 0 MD0 0 1 BCRL EAE -- On-Chip ROM H8S/2345 -- H8S/2344 -- H8S/2343 -- H8S/2341 -- Mode 2 *1 Normal expanded mode with on-chip ROM enabled Mode 3 *1 Normal single-chip mode Mode 4 Advanced expanded mode with on-chip ROM disabled Advanced expanded mode with on-chip ROM disabled 1 0 Disabled Disabled Disabled Disabled 1 0 0 -- Enabled Enabled Enabled Enabled (56 kbytes) (56 kbytes) (56 kbytes) (32 kbytes) Disabled Disabled Disabled Disabled Mode 5 1 Mode 6 *1 Advanced expanded mode with on-chip ROM enabled Mode 7 *1 Advanced singlechip mode 1 0 0 Enabled (128 kbytes)*2 Enabled*2 Enabled Enabled (96 kbytes) (64 kbytes) (32 kbytes) 1 1 0 Enabled Enabled (64 kbytes) (64 kbytes) Enabled (128 kbytes)*2 Enabled*2 (96 kbytes) 1 Enabled Enabled (64 kbytes) (64 kbytes) Notes: 1. Not used on ROMless version. 2. In H8S/2345 modes 6 and 7, the on-chip ROM available after a power-on reset is the 64-kbyte area comprising addresses H'000000 to H'00FFFF. 541 17.4 17.4.1 PROM Mode PROM Mode Setting The PROM version of the H8S/2345 suspends its microcontroller functions when placed in PROM mode, enabling the on-chip PROM to be programmed. This programming can be done with a PROM programmer set up in the same way as for the HN27C101 EPROM (VPP = 12.5 V). Use of a 100-pin/32-pin socket adapter enables programming with a commercial PROM programmer. Note that the PROM programmer should not be set to page mode as the H8S/2345 does not support page programming. Table 17.4 shows how PROM mode is selected. Table 17.4 Selecting PROM Mode Pin Names MD2, MD1, MD0 STBY PA2, PA1 High Setting Low 17.4.2 Socket Adapter and Memory Map Programs can be written and verified by attaching a socket adapter to the PROM programmer to convert from a 100-pin arrangement to a 32-pin arrangement. Table 17.5 gives ordering information for the socket adapter, and figure 17.2 shows the wiring of the socket adapter. Figure 17.3 shows the memory map in PROM mode. 542 H8S/2345 Series FP-100B, TFP-100B, TFP-100G 62 23 24 25 26 27 28 29 30 32 33 34 35 36 37 38 39 41 63 43 44 45 46 47 48 50 74 42 75 40, 65, 98 77 78 51 52 7, 18, 31, 49, 68, 88 87 64 57 58 61 FP-100A 64 25 26 27 28 29 30 31 32 34 35 36 37 38 39 40 41 43 65 45 46 47 48 49 50 52 76 44 77 42, 67, 100 79 80 53 54 9, 20, 33 51, 70, 90 89 66 59 60 63 AVSS STBY MD0 MD1 MD2 VPP Pin RES PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7 PC0 PC1 PC2 PC3 PC4 PC5 PC6 PC7 PB0 NMI PB2 PB3 PB4 PB5 PB6 PB7 PA0 PF2 PB1 PF1 VCC AVCC Vref PA1 PA2 VSS VSS Pin VPP EPROM socket HN27C101 (32 Pins) 1 13 14 15 17 18 19 20 21 12 11 10 9 8 7 6 5 27 26 23 25 4 28 29 3 2 22 24 31 32 EO0 EO1 EO2 EO3 EO4 EO5 EO6 EO7 EA0 EA1 EA2 EA3 EA4 EA5 EA6 EA7 EA8 EA9 EA10 EA11 EA12 EA13 EA14 EA15 EA16 CE OE PGM VCC 16 Note: Pins not shown in this figure should be left open. : Programming power supply (12.5 V) EO7 to EO0 : Data input/output EA16 to EA0 : Address input OE : Output enable CE : Chip enable PGM : Program Figure 17.2 Wiring of 100-Pin/32-Pin Socket Adapter 543 Table 17.5 Socket Adapter Socket Adapter Microcontroller H8S/2345 Package 100-pin TQFP (TFP-100B) 100-pin TQFP (TFP-100G) 100-pin QFP (FP-100A) 100-pin QFP (FP-100B) MINATO ELECTRONICS INC. ME2345ESNS1H ME2345ESMS1H ME2345ESFS1H ME2345ESHS1H DATA I/O CO. H72345T100D3201 H7234GT100D3201 H7234AQ100D3201 H7234BQ100D3201 Addresses in MCU mode H'000000 Addresses in PROM mode H'00000 On-chip PROM H'01FFFF H'1FFFF Figure 17.3 Memory Map in PROM Mode 544 17.5 17.5.1 Programming Overview Table 17.6 shows how to select the program, verify, and program-inhibit modes in PROM mode. Table 17.6 Mode Selection in PROM Mode Pins Mode Program Verify Program-inhibit CE L L L L H H Legend L : Low voltage level H : High voltage level VPP : VPP voltage level VCC : VCC voltage level OE H L L H L H PGM L H L H L H VPP VPP VPP VPP VCC VCC VCC VCC EO7 to EO0 Data input Data output High impedance EA 16 to EA0 Address input Address input Address input Programming and verification should be carried out using the same specifications as for the standard HN27C101 EPROM. However, do not set the PROM programmer to page mode, as the H8S/2345 does not support page programming. A PROM programmer that only supports page programming cannot be used. When choosing a PROM programmer, check that it supports high-speed programming in byte units. Always set addresses within the range H'00000 to H'1FFFF. 17.5.2 Programming and Verification An efficient, high-speed programming procedure can be used to program and verify PROM data. This procedure writes data quickly without subjecting the chip to voltage stress or sacrificing data reliability. It leaves the data H'FF in unused addresses. Figure 17.4 shows the basic high-speed programming flowchart. Tables 17.7 and 17.8 list the electrical characteristics of the chip during programming. Figure 17.5 shows a timing chart. 545 Start Set programming/verification mode VCC = 6.0V0.25V, VPP = 12.5V0.3V Address = 0 n=0 n + 1 n Yes No n<25? Program with tPW = 0.2 ms5% Address + 1 address No Verification OK? Yes Program with tOPW = 0.2n ms No Last address? Yes Set read mode VCC = 5.0 V 0.25 V VPP = VCC Fail No go All addresses read? Go End Figure 17.4 High-Speed Programming Flowchart 546 Table 17.7 DC Characteristics in PROM Mode (When V CC = 6.0 V 0.25 V, VPP = 12.5 V 0.3 V, VSS = 0 V, Ta = 25C 5C) Item Input high voltage EO7 to EO 0, EA16 to EA 0, OE, CE, PGM EO7 to EO 0, EA16 to EA0, OE, CE, PGM Symbol Min VIH 2.4 Typ -- Max VCC + 0.3 Test Unit Conditions V Input low voltage VIL -0.3 -- 0.8 V Output high voltage EO7 to EO 0 Output low voltage Input leakage current VCC current VPP current EO7 to EO 0 EO7 to EO 0, EA16 to EA 0, OE, CE, PGM VOH VOL | ILI | 2.4 -- -- -- -- -- -- 0.45 2 V V A I OH = -200 A I OL = 1.6 mA Vin = 5.25 V/0.5 V I CC I PP -- -- -- -- 40 40 mA mA 547 Table 17.8 AC Characteristics in PROM Mode (When V CC = 6.0 V 0.25 V, VPP = 12.5 V 0.3 V, T a = 25C 5C) Item Address setup time OE setup time Data setup time Address hold time Data hold time Data output disable time VPP setup time Programming pulse width Symbol t AS t OES t DS t AH t DH t DF * t VPS t PW 3 2 Min 2 2 2 0 2 -- 2 0.19 0.19 2 2 0 Typ -- -- -- -- -- -- -- 0.20 -- -- -- -- Max -- -- -- -- -- 130 -- 0.21 5.25 -- -- 150 Unit s s s s s ns s ms ms s s ns Test Conditions Figure 17.5*1 PGM pulse width for overwrite programming t OPW* VCC setup time CE setup time Data output delay time t VCS t CES t OE Notes: 1. Input pulse level: 0.8 V to 2.2 V Input rise time and fall time 20 ns Timing reference levels: Input: 1.0 V, 2.0 V Output: 0.8 V, 2.0 V 2. t DF is defined to be when output has reached the open state, and the output level can no longer be referenced. 3. t OPW is defined by the value shown in the flowchart. 548 Program Address tAS Data tDS VPP VCC VPP VCC VCC+1 VCC tVPS tVCS Input data tDH Verify tAH Output data tDF CE tCES PGM tPW OE tOPW* tOES tOE Note: * tOPW is defined by the value shown in the flowchart. Figure 17.5 PROM Programming/Verification Timing 17.5.3 Programming Precautions * Program using the specified voltages and timing. The programming voltage (VPP) in PROM mode is 12.5 V. If the PROM programmer is set to Hitachi HN27C101 specifications, VPP will be 12.5 V. Applied voltages in excess of the specified values can permanently destroy the MCU. Be particularly careful about the PROM programmer's overshoot characteristics. * Before programming, check that the MCU is correctly mounted in the PROM programmer. Overcurrent damage to the MCU can result if the index marks on the PROM programmer, socket adapter, and MCU are not correctly aligned. * Do not touch the socket adapter or MCU while programming. Touching either of these can cause contact faults and programming errors. * The MCU cannot be programmed in page programming mode. Select the programming mode carefully. 549 * The size of the H8S/2345 Series PROM is 128 kbytes. Always set addresses within the range H'00000 to H'1FFFF. During programming, write H'FF to unused addresses to avoid verification errors. 17.5.4 Reliability of Programmed Data An effective way to assure the data retention characteristics of the programmed chips is to bake them at 150C, then screen them for data errors. This procedure quickly eliminates chips with PROM memory cells prone to early failure. Figure 17.6 shows the recommended screening procedure. Program chip and verify data Bake chip for 24 to 48 hours at 125C to 150C with power off Read and check program Mount Figure 17.6 Recommended Screening Procedure If a series of programming errors occurs while the same PROM programmer is being used, stop programming and check the PROM programmer and socket adapter for defects. Please inform Hitachi of any abnormal conditions noted during or after programming or in screening of program data after high-temperature baking. 550 17.6 17.6.1 Overview of Flash Memory Features The features of the flash memory are summarized below. * Four flash memory operating modes Program mode Erase mode Program-verify mode Erase-verify mode * Programming/erase methods The flash memory is programmed 32 bytes at a time. Erasing is performed by block erase (in single-block units). When erasing multiple blocks, the individual blocks must be erased sequentially. Block erasing can be performed as required on 1-kbyte, 8-kbyte, 16-kbyte, 28kbyte, and 32-kbyte blocks. * Programming/erase times (5 V version) The flash memory programming time is 10 ms (typ.) for simultaneous 32-byte programming, equivalent to 300 s (typ.) per byte, and the erase time is 100 ms (typ.) per block. * Reprogramming capability The flash memory can be reprogrammed up to 100 times. * On-board programming modes There are two modes in which flash memory can be programmed/erased/verified on-board: Boot mode User program mode * Automatic bit rate adjustment With data transfer in boot mode, the bit rate of the H8S/2345 Series chip can be automatically adjusted to match the transfer bit rate of the host. (9600 bps, 4800 bps) * Flash memory emulation by RAM Part of the RAM area can be overlapped onto flash memory, to emulate flash memory updates in real time. * Protect modes There are three protect modes, hardware, software, and error protect, which allow protected status to be designated for flash memory program/erase/verify operations. 551 * Writer mode Flash memory can be programmed/erased in writer mode, using a PROM programmer, as well as in on-board programming mode. 17.6.2 Block Diagram Internal data bus (lower 8 bits) Internal data bus (upper 8 bits) SYSCR2 FLMCR1 Module bus FLMCR2 EBR1 EBR2 RAMER H'000000 H'000001 H'000002 H'000003 Flash memory (128 kbytes) H'01FFFC H'01FFFD H'01FFFE H'01FFFF Even addresses Legend: SYSCR2: FLMCR1: FLMCR2: EBR1: EBR2: RAMER: System control register 2*2 Flash memory control register 1*2 Flash memory control register 2*2 Erase block register 1*2 Erase block register 2*2 RAM emulation register*2 Odd addresses Bus interface/controller Operating mode FWE pin*1 Mode pins (MD2 to MD0) Notes: 1. Functions as FWE pin on F-ZTAT version. Functions as WDTOVF pin on ZTAT, mask ROM, and ROMless versions. 2. The flash memory control registers (SYSCR2, FLMCR1, FLMCR2, EBR1, EBR2, RAMER) are enabled on the F-ZTAT version only. They do not exist on the ZTAT, mask ROM, and ROMless versions, so an undefined value will be returned if they are read, and it is not possible to write to these registers. Figure 17.7 Block Diagram of Flash Memory 552 17.6.3 Flash Memory Operating Modes Mode Transitions: When the mode pins and the FWE pin are set in the reset state and a reset-start is executed, the MCU enters one of the operating modes shown in figure 17.8. In user mode, flash memory can be read but not programmed or erased. Flash memory can be programmed and erased in boot mode, user program mode, and writer mode. FWE = 0, MD2 = MD1 = 1 User mode with on-chip ROM enabled RES = 0 Reset state RES = 0 *1 RES = 0 *2 RES = 0 Writer mode FWE = 1, SWE = 1 FWE = 0 or SWE = 0 User program mode Boot mode On-board programming mode Notes: Only make a transition between user mode and user program mode when the CPU is not accessing the flash memory. 1. NMI = 1, MD2 = MD1 = MD0 = 0, PF2 = 1, PF1 = PF0 = 0 2. NMI = 1, FWE = 1, MD2 = 0, MD1 = 1 Figure 17.8 Flash Memory Mode Transitions 553 On-Board Programming Modes * Boot mode 1. Initial state The old program version or data remains written in the flash memory. The user should prepare the programming control program and new application program beforehand in the host. 2. Programming control program transfer When boot mode is entered, the boot program in the H8S/2345 chip (originally incorporated in the chip) is started and the programming control program in the host is transferred to RAM via SCI communication. The boot program required for flash memory erasing is automatically transferred to the RAM boot program area. Host ! Host Programming control program New application program New application program H8S/2345 F-ZTAT chip Boot program H8S/2345 F-ZTAT chip Boot program SCI SCI Flash memory RAM Flash memory RAM Boot program area Programming control program Application program (old version) Application program (old version) 3. Flash memory initialization The erase program in the boot program area (in RAM) is executed, and the flash memory is initialized (to H'FF). In boot mode, entire flash memory erasure is performed, without regard to blocks. Host 4. Writing new application program The programming control program transferred from the host to RAM is executed, and the new application program in the host is written into the flash memory. Host New application program H8S/2345 F-ZTAT chip Boot program H8S/2345 F-ZTAT chip Boot program SCI SCI Flash memory RAM Flash memory RAM Boot program area Programming control program Boot program area Programming control program Flash memory erase New application program Program execution state Figure 17.9 Boot Mode 554 * User program mode 1. Initial state (1) The FWE assessment program that confirms that the FWE pin has been driven high, and (2) the program that will transfer the programming/ erase control program to on-chip RAM should be written into the flash memory by the user beforehand. (3) The programming/erase control program should be prepared in the host or in the flash memory. Host Programming/ erase control program New application program 2. Programming/erase control program transfer When the FWE pin is driven high, user software confirms this fact, executes the transfer program in the flash memory, and transfers the programming/erase control program to RAM. , , Host New application program H8S/2345 F-ZTAT chip Boot program H8S/2345 F-ZTAT chip Boot program SCI SCI Flash memory RAM Flash memory RAM FWE assessment program FWE assessment program Transfer program Transfer program Programming/ erase control program Application program (old version) Application program (old version) 3. Flash memory initialization The programming/erase program in RAM is executed, and the flash memory is initialized (to H'FF). Erasing can be performed in block units, but not in byte units. Host 4. Writing new application program Next, the new application program in the host is written into the erased flash memory blocks. Do not write to unerased blocks. Host New application program H8S/2345 F-ZTAT chip Boot program H8S/2345 F-ZTAT chip Boot program SCI SCI Flash memory RAM Flash memory RAM FWE assessment program Transfer program FWE assessment program Transfer program Programming/ erase control program Programming/ erase control program Flash memory erase New application program Program execution state Figure 17.10 User Program Mode (Example) 555 Flash Memory Emulation in RAM: Emulation should be performed in user mode or user program mode. When the emulation block set in RAMER is accessed while the emulation function is being executed, data written in the overlap RAM is read. * Reading Overlap Data in User Mode and User Program Mode SCI Flash memory Emulation block RAM Overlap RAM (emulation is performed on data written in RAM) Application program Execution state Figure 17.11 Reading Overlap Data in User Mode and User Program Mode * Writing Overlap Data in User Program Mode When overlap RAM data is confirmed, the RAMS bit is cleared, RAM overlap is released, and writes should actually be performed to the flash memory. When the programming control program is transferred to RAM, ensure that the transfer destination and the overlap RAM do not overlap, as this will cause data in the overlap RAM to be rewritten. SCI Flash memory Programming data RAM Overlap RAM (programming data) Programming control program execution state Application program Figure 17.12 Writing Overlap Data in User Program Mode 556 Table 17.9 Differences between Boot Mode and User Program Mode Boot Mode Entire memory erase Block erase Programming control program* Yes No Program/program-verify User Program Mode Yes Yes Program/program-verify Erase/erase-verify Note: * To be provided by the user, in accordance with the recommended algorithm. Block Configuration: The flash memory is divided into four 1-kbyte blocks, one 28-kbyte block, one 16-kbyte block, two 8-kbyte blocks, and two 32-kbyte blocks. Address H'000000 1 kbyte 1 kbyte 1 kbyte 1 kbyte 28 kbytes 16 kbytes Flash memory 128 kbytes 8 kbytes 8 kbytes 32 kbytes 32 kbytes Address H'01FFFF Figure 17.13 Flash Memory Block Configuration 557 17.6.4 Pin Configuration The flash memory is controlled by means of the pins shown in table 17.10. Table 17.10 Flash Memory Pins Pin Name Reset Flash write enable Mode 2 Mode 1 Mode 0 Port F2 Port F1 Port F0 Transmit data Receive data Abbreviation RES FWE* MD2 MD1 MD0 PF 2 PF 1 PF 0 TxD1 RxD1 I/O Input Input Input Input Input Input Input Input Output Input Function Reset Flash program/erase protection by hardware Sets MCU operating mode Sets MCU operating mode Sets MCU operating mode Sets MCU operating mode in writer mode Sets MCU operating mode in writer mode Sets MCU operating mode in writer mode Serial transmit data output Serial receive data input Note: * FWE pin functions as WDTOVF pin on ZTAT, mask ROM, and ROMless versions. 558 17.6.5 Register Configuration The registers used to control the on-chip flash memory when enabled are shown in table 17.11. In order for these registers to be accessed, the FLSHE bit must be set to 1 in SYSCR2. Table 17.11 Flash Memory Registers Register Name Flash memory control register 1 Flash memory control register 2 Erase block register 1 Erase block register 2 System control register 2 RAM emulation register Abbreviation R/W FLMCR1*6 FLMCR2*6 EBR1*6 EBR2*6 SYSCR2 RAMER R/W*3 R/W*3 R/W*3 R/W*3 R/W R/W Initial Value H'00*4 H'00*5 H'00*5 H'00*5 H'00 H'00 Address*1 H'FFC8*2 H'FFC9*2 H'FFCA*2 H'FFCB*2 H'FF42 H'FEDB Notes: 1. Lower 16 bits of the address. 2. Flash memory registers share addresses with other registers. Register selection is performed by the FLSHE bit in the system control register 2 (SYSCR2). 3. In modes in which the on-chip flash memory is disabled (modes 4 and 5), a read will return H'00, and writes are invalid. Writes are also disabled when the FWE bit is cleared to 0 in FLMCR1. 4. When a high level is input to the FWE pin, the initial value is H'80. 5. When a low level is input to the FWE pin, or if a high level is input and the SWE bit in FLMCR1 is not set, these registers are initialized to H'00. 6. FLMCR1, FLMCR2, EBR1, and EBR2 are 8-bit registers. Only byte accesses are valid for these registers, the access requiring 2 states. The registers listed in table 7.11 are enabled on the F-ZTAT version only. They do not exist on the ZTAT, mask ROM, and ROMless versions, so an undefined value will be returned if they are read, and it is not possible to write to these registers. 559 17.7 17.7.1 Register Descriptions Flash Memory Control Register 1 (FLMCR1) Bit 7 FWE Initial value Read/Write --* R 6 SWE 0 R/W 5 -- 0 -- 4 -- 0 -- 3 EV 0 R/W 2 PV 0 R/W 1 E 0 R/W 0 P 0 R/W Note: * Determined by the state of the FWE pin. FLMCR1 is an 8-bit register used for flash memory operating mode control. Program-verify mode or erase-verify mode is entered by setting SWE to 1 when FWE = 1. Program mode is entered by setting SWE to 1 when FWE = 1, then setting the PSU bit in FLMCR2, and finally setting the P bit. Erase mode is entered by setting SWE to 1 when FWE = 1, then setting the ESU bit in FLMCR2, and finally setting the E bit. FLMCR1 is initialized by a reset, and in hardware standby mode and software standby mode. Its initial value is H'80 when a high level is input to the FWE pin, and H'00 when a low level is input. When on-chip flash memory is disabled (modes 4 and 5), a read will return H'00, and writes are invalid. Writes to the SWE bit in FLMCR1 are enabled only when FWE = 1; writes to the EV and PV bits only when FWE=1 and SWE=1; writes to the E bit only when FWE = 1, SWE = 1, and ESU = 1; and writes to the P bit only when FWE = 1, SWE = 1, and PSU = 1. Bit 7--Flash Write Enable Bit (FWE): Sets hardware protection against flash memory programming/erasing. See section 17.14, Flash Memory Programming and Erasing Precautions, before using this bit. Bit 7 FWE 0 1 Description When a low level is input to the FWE pin (hardware-protected state) When a high level is input to the FWE pin 560 Bit 6--Software Write Enable Bit (SWE): Enables or disables flash memory programming. SWE should be set before setting bits ESU, PSU, EV, PV, E, P, and EB9 to EB0, and should not be cleared at the same time as these bits. Bit 6 SWE 0 1 Description Writes/erasing disabled Writes/erasing enabled [Setting condition] When FWE = 1 (Initial value) Bit 5 and 4--Reserved: Read-only bits, always read as 0. Bit 3--Erase-Verify (EV): Selects erase-verify mode transition or clearing. Do not set the SWE, ESU, PSU, PV, E, or P bit at the same time. Bit 3 EV 0 1 Description Erase-verify mode cleared Transition to erase-verify mode [Setting condition] When FWE = 1 and SWE = 1 (Initial value) Bit 2--Program-Verify (PV): Selects program-verify mode transition or clearing. Do not set the SWE, ESU, PSU, EV, E, or P bit at the same time. Bit 2 PV 0 1 Description Program-verify mode cleared Transition to program-verify mode [Setting condition] When FWE = 1 and SWE = 1 (Initial value) 561 Bit 1--Erase (E): Selects erase mode transition or clearing. Do not set the SWE, ESU, PSU, EV, PV, or P bit at the same time. Bit 1 E 0 1 Description Erase mode cleared Transition to erase mode [Setting condition] When FWE = 1, SWE = 1, and ESU = 1 (Initial value) Bit 0--Program (P): Selects program mode transition or clearing. Do not set the SWE, ESU, PSU, EV, PV, or E bit at the same time. Bit 0 P 0 1 Description Program mode cleared Transition to program mode [Setting condition] When FWE = 1, SWE = 1, and PSU = 1 (Initial value) 562 17.7.2 Flash Memory Control Register 2 (FLMCR2) Bit 7 FLER Initial value Read/Write 0 R 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- 3 -- 0 -- 2 -- 0 -- 1 ESU 0 R/W 0 PSU 0 R/W FLMCR2 is an 8-bit register that monitors the presence or absence of flash memory program/erase protection (error protection) and performs setup for flash memory program/erase mode. FLMCR2 is initialized to H'00 by a reset, and in hardware standby mode. The ESU and PSU bits are cleared to 0 in software standby mode, hardware protect mode, and software protect mode. When on-chip flash memory is disabled, a read will return H'00. Bit 7--Flash Memory Error (FLER): Indicates that an error has occurred during an operation on flash memory (programming or erasing). When FLER is set to 1, flash memory goes to the errorprotect mode. Bit 7 FLER 0 Description Flash memory is operating normally Flash memory program/erase protection (error protection) is disabled [Clearing condition] Reset or hardware standby mode 1 An error has occurred during flash memory programming/erasing Flash memory program/erase protection (error protection) is enabled [Setting condition] See section 17.10.3, Error Protection (Initial value) Bits 6 to 2--Reserved: Read-only bits, always read as 0. Bit 1--Erase Setup (ESU): Prepares for a transition to erase mode. Set this bit to 1 before setting the E bit to 1 in FLMCR1. Do not set the SWE, PSU, EV, PV, E, or P bit at the same time. Bit 1 ESU 0 1 Description Erase setup cleared Erase setup [Setting condition] When FWE = 1, and SWE = 1 (Initial value) 563 Bit 0--Program Setup (PSU): Prepares for a transition to program mode. Set this bit to 1 before setting the P bit to 1 in FLMCR1. Do not set the SWE, ESU, EV, PV, E, or P bit at the same time. Bit 0 PSU 0 1 Description Program setup cleared Program setup [Setting condition] When FWE = 1, and SWE = 1 (Initial value) 17.7.3 Erase Block Registers 1 and 2 (EBR1, EBR2) Bit EBR1 Initial value Read/Write Bit EBR2 Initial value Read/Write 7 -- 0 -- 7 EB7 0 R/W 6 -- 0 -- 6 EB6 0 R/W 5 -- 0 -- 5 EB5 0 R/W 4 -- 0 -- 4 EB4 0 R/W 3 -- 0 -- 3 EB3 0 R/W 2 -- 0 -- 2 EB2 0 R/W 1 EB9 0 R/W 1 EB1 0 R/W 0 EB8 0 R/W 0 EB0 0 R/W EBR1 and EBR2 are registers that specify the flash memory erase area block by block; bits 1 and 2 in EBR1 and bits 7 to 0 in EBR2 are readable/writable bits. EBR1 and EBR2 are each initialized to H'00 by a reset, in hardware standby mode and software standby mode, when a low level is input to the FWE pin, and when a high level is input to the FWE pin and the SWE bit in FLMCR1 is cleared to 0. When a bit in EBR1 or EBR2 is set, the corresponding block can be erased. Other blocks are erase-protected. Blocks are erased separately (in one-block units), so set only one bit in EBR1 or EBR2 (more than one bit cannot be set to 1). To erase all blocks, erase one block at a time, once after another in sequence. Then on-chip flash memory is disabled (modes 4 and 5), a read with return H'00, and writes are disabled. The flash memory block configuration is shown in table 17.12. 564 Table 17.12 Flash Memory Erase Blocks Block (Size) EB0 (1 kbyte) EB1 (1 kbyte) EB2 (1 kbyte) EB3 (1 kbyte) EB4 (28 kbytes) EB5 (16 kbytes) EB6 (8 kbytes) EB7 (8 kbytes) EB8 (32 kbytes) EB9 (32 kbytes) Address H'000000 to H'0003FF H'000400 to H'0007FF H'000800 to H'000BFF H'000C00 to H'000FFF H'001000 to H'007FFF H'008000 to H'00BFFF H'00C000 to H'00DFFF H'00E000 to H'00FFFF H'010000 to H'017FFF H'018000 to H'01FFFF 17.7.4 System Control Register 2 (SYSCR2) Bit 7 -- Initial value Read/Write 0 -- 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- 3 FLSHE 0 R/W 2 -- 0 -- 1 -- 0 -- 0 -- 0 -- SYSCR2 is an 8-bit readable/writable register that controls on-chip flash memory (in F-ZTAT versions). SYSCR2 is initialized to H'00 by a reset and in hardware standby mode. SYSCR2 is available only in the F-ZTAT version. In the mask ROM and ZTAT versions, this register cannot be written to and will return an undefined value if read. Bits 7 to 4--Reserved: Read-only bits, always read as 0. Bit 3--Flash Memory Control Register Enable (FLSHE): Controls CPU access to the flash memory control registers (FLMCR1, FLMCR2, EBR1, and EBR2). Setting the FLSHE bit to 1 enables read/write access to the flash memory control registers. If FLSHE is cleared to 0, the flash memory control registers are deselected. In this case, the flash memory control register contents are retained. 565 Bit 3 FLSHE 0 1 Description Flash control registers deselected in area H'FFFFC8 to H'FFFFCB Flash control registers selected in area H'FFFFC8 to H'FFFFCB (Initial value) Bits 2 to 0--Reserved: Read-only bits, always read as 0. 17.7.5 RAM Emulation Register (RAMER) Bit: 7 -- Initial value: R/W: 0 -- 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- 3 -- 0 -- 2 RAMS 0 R/W 1 RAM1 0 R/W 0 RAM0 0 R/W RAMER specifies the area of flash memory to be overlapped with part of RAM when emulating real-time flash memory programming. RAMER is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in software standby mode. RAMER settings should be made in user mode or user program mode. Flash memory area divisions are shown in table 17.13. To ensure correct operation of the emulation function, the ROM for which RAM emulation is performed should not be accessed immediately after this register has been modified. Normal execution of an access immediately after register modification is not guaranteed. Bits 7 to 3--Reserved: These bits are always read as 0. Bit 2--RAM Select (RAMS): Specifies selection or non-selection of flash memory emulation in RAM. When RAMS = 1, all flash memory block are program/erase-protected. Bit 2 RAMS 0 Description Emulation not selected Program/erase-protection of all flash memory blocks is disabled 1 Emulation selected Program/erase-protection of all flash memory blocks is enabled (Initial value) Bits 1 and 0--Flash Memory Area Selection (RAM1, RAM0): These bits are used together with bit 2 to select the flash memory area to be overlapped with RAM. (See table 17.13.) 566 Table 17.13 Flash Memory Area Divisions Bit 2 Addresses H'FFEC00-H'FFEFFF H'000000-H'0003FF H'000400-H'0007FF H'000800-H'000BFF H'000C00-H'000FFF *: Don't care Block Name RAM area 1 kbyte EB0 (1 kbyte) EB1 (1 kbyte) EB2 (1 kbyte) EB3 (1 kbyte) RAMS 0 1 1 1 1 Bit 1 RAM1 * 0 0 1 1 Bit 0 RAM0 * 0 1 0 1 Description RAM emulation not selected RAM emulation selected To use RAM for flash memory emulation, set the RAME bit of SYSCR to 1. Flash memory area H'000000 H'0003FF H'000400 H'0007FF H'000800 H'000BFF H'000C00 H'000FFF H'001000 EB0 Emulation block EB1 EB2 EB3 EB4 . . . . . . . . . . . . . . . . . . . EB9 RAM area Overlap RAM (1 kbyte) H'FFEC00 H'FFEFFF H'FFF000 RAM (3 kbytes) H'FFFBFF H'01FFFF Figure 17.14 Example of Overlap Between Flash Memory Area and RAM Area (When RAMS = 1, RAM1 = 0, and RAM0 = 1) 567 17.8 On-Board Programming Modes When pins are set to an on-board programming mode, they enter an on-board programming status in which program, erase, and verify operations can be performed on the on-chip flash memory. There are two on-board programming modes: boot mode and user program mode. The pin settings for transition to each of these modes are shown in table 17.14. For a diagram of the transitions to the various flash memory modes, see figure 17.8. Table 17.14 Setting On-Board Programming Modes Mode Mode Name Boot mode Mode 10 Mode 11 User program mode *1 Mode 14 Mode 15 CPU Operating Mode Advanced expanded mode with on-chip ROM enabled Advanced single-chip mode Advanced expanded mode with on-chip ROM enabled Advanced single-chip mode 1* 2 FWE 1 MD2 0 MD1 1 MD0 0 1 1 1 0 1 Notes: 1. Normally, user mode (modes 6 and 7) should be used. Set FWE to 1 to make a transition to user program mode (modes 14 and 15) before performing a program/erase/verify operation. 2. Refer to "17.4, Notes on Programming and Erasing Flash Memory" for information on programming and clearing FWE. 568 17.8.1 Boot Mode When boot mode is used, the flash memory programming control program must be prepared in the host beforehand. The channel 1 SCI to be used is set to asynchronous mode. When a reset-start is executed after the H8S/2345 MCU's pins have been set to boot mode, the boot program built into the MCU is started and the programming control program prepared in the host is serially transmitted to the MCU via the SCI. In the MCU, the programming control program received via the SCI is written into the programming control program area in on-chip RAM. After the transfer is completed, control branches to the start address of the programming control program area and the programming control program execution state is entered (flash memory programming is performed). The transferred programming control program must therefore include coding that follows the programming algorithm given later. The system configuration in boot mode is shown in figure 17.15, and the boot program mode execution procedure in figure 17.16. H8S/2345 chip Flash memory Host Write data reception Verify data transmission RxD1 SCI1 TxD1 On-chip RAM Figure 17.15 System Configuration in Boot Mode 569 Start Set pins to boot mode and execute reset-start Host transfers data (H'00) continuously at prescribed bit rate H8S/2345 measures low period of H'00 data transmitted by host H8S/2345 calculates bit rate and sets value in bit rate register After bit rate adjustment, H8S/2345 transmits one H'00 data byte to host to indicate end of adjustment Host confirms normal reception of bit rate adjustment end indication (H'00), and transmits one H'55 data byte After receiving H'55, H8S/2345 transmits one H'AA data byte to host Host transmits number of programming control program bytes (N), upper byte followed by lower byte H8S/2345 transmits received number of bytes to host as verify data (echo-back) n=1 Host transmits programming control program sequentially in byte units H8S/2345 transmits received programming control program to host as verify data (echo-back) Transfer received programming control program to on-chip RAM No Yes End of transmission Check flash memory data, and if data has already been written, erase all blocks After confirming that all flash memory data has been erased, H8S/2345 transmits one H'AA data byte to host Execute programming control program transferred to on-chip RAM n+1n n = N? Note: If a memory cell does not operate normally and cannot be erased, one H'FF byte is transmitted as an erase error, and the erase operation and subsequent operations are halted. Figure 17.16 Boot Mode Execution Procedure 570 Automatic SCI Bit Rate Adjustment Start bit D0 D1 D2 D3 D4 D5 D6 D7 Stop bit Low period (9 bits) measured (H'00 data) High period (1 or more bits) Figure 17.17 Measurement of Low Period of Host Transmission Data When boot mode is initiated, the H8S/2345 MCU measures the low period of the asynchronous SCI communication data (H'00) transmitted continuously from the host, see figure 17.17. The SCI transmit/receive format should be set as follows: 8-bit data, 1 stop bit, no parity. The MCU calculates the bit rate of the transmission from the host from the measured low period, and transmits one H'00 byte to the host to indicate the end of bit rate adjustment. The host should confirm that this adjustment end indication (H'00) has been received normally, and transmit one H'55 byte to the MCU. If reception cannot be performed normally, initiate boot mode again (reset), and repeat the above operations. Depending on the host's transmission bit rate and the MCU's system clock frequency, there will be a discrepancy between the bit rates of the host and the MCU. To ensure correct SCI operation, the host's transfer bit rate should be set to (4800, or 9600) bps. Table 17.15 shows typical host transfer bit rates and system clock frequencies for which automatic adjustment of the MCU's bit rate is possible. The boot program should be executed within this system clock range. Table 17.15 System Clock Frequencies for which Automatic Adjustment of H8S/2345 Bit Rate is Possible Host Bit Rate 9600 bps 4800 bps System Clock Frequency for which Automatic Adjustment of H8S/2345 Bit Rate is Possible 8 MHz to 20 MHz 4 MHz to 20 MHz On-Chip RAM Area Divisions in Boot Mode: In boot mode, the 2 kbytes area from H'FFEC00 to H'FFF3FF is reserved for use by the boot program, as shown in figure 17.18. The area to which the programming control program is transferred is H'FFF400 to H'FFFBFF. The boot program area can be used when the programming control program transferred into RAM enters the execution state. A stack area should be set up as required. 571 H'FFEC00 Boot program area* (2 kbytes) H'FFF3FF H'FFF400 Programming control program area (2 kbytes) H'FFFBFF Note: * The boot program area cannot be used until a transition is made to the execution state for the programming control program transferred to RAM. Note that the boot program remains stored in this area after a branch is made to the programming control program. On chip RAM (4 kbytes) Figure 17.18 RAM Areas in Boot Mode Notes on Use of User Mode: * When the chip comes out of reset in boot mode, it measures the low-level period of the input at the SCI's RxD1 pin. The reset should end with RxD1 high. After the reset ends, it takes approximately 100 states before the chip is ready to measure the low-level period of the RxD1 pin. * In boot mode, if any data has been programmed into the flash memory (if all data is not 1), all flash memory blocks are erased. Boot mode is for use when user program mode is unavailable, such as the first time on-board programming is performed, or if the program activated in user program mode is accidentally erased. * Interrupts cannot be used while the flash memory is being programmed or erased. * The RxD1 and TxD1 pins should be pulled up on the board. * Before branching to the programming control program (RAM area H'FFF400), the chip terminates transmit and receive operations by the on-chip SCI (channel 1) (by clearing the RE and TE bits in SCR to 0), but the adjusted bit rate value remains set in BRR. The transmit data output pin, TxD1, goes to the high-level output state (P31DDR = 1, P31DR = 1). 572 The contents of the CPU's internal general registers are undefined at this time, so these registers must be initialized immediately after branching to the programming control program. In particular, since the stack pointer (SP) is used implicitly in subroutine calls, etc., a stack area must be specified for use by the programming control program. Initial settings must also be made for the other on-chip registers. * Boot mode can be entered by making the settings to the FWE pin and the mode pins (MD 2 to MD0) shown in Table 17.14 and executing a reset-start. (See figure 17.37.) To change from boot mode to another mode (user mode, etc.), the microcomputer's internal boot mode status must first be cleared by inputting a reset using the RES pin*1. In this case, the RES pin must be kept low (tRESW ) for at least 20 states. (See figure 17.38.) * Do not change the FWE pin and mode pin input levels in boot mode, and do not drive the FWE pin low while the boot program is being executed or while flash memory is being programmed or erased.*2 * If the FWE pin or mode pin input levels are changed (for example, from low to high) during a reset, the state of ports with multiplexed address functions and bus control output pins (AS, RD, HWR, LWR) will change according to the change in the microcomputer's operating mode*3. Therefore, care must be taken to make pin settings to prevent these pins from becoming output signal pins during a reset, or to prevent collision with signals outside the microcomputer. Notes: 1. FWE pin and mode pin input must satisfy the mode programming setup time (tMDS) with respect to the reset release timing, as shown in figures 17.36 to 17.38. 2. For further information on FWE application and disconnection, see section 17.14, Flash Memory Programming and Erasing Precautions. 3. See appendix D, Pin States. 17.8.2 User Program Mode When set to user program mode, the chip can program and erase its flash memory by executing a user program/erase control program. Therefore, on-board reprogramming of the on-chip flash memory can be carried out by providing on-board means of FWE control and supply of programming data, and storing a program/erase control program in part of the program area as necessary. To select user program mode, select a mode that enables the on-chip flash memory (mode 6 or 7), and apply a high level to the FWE pin. In this mode, on-chip supporting modules other than flash memory operate as they normally would in modes 6 and 7, see figures 17.37 and 17.38. 573 The flash memory itself cannot be read while the SWE bit is set to 1 to perform programming or erasing, so the control program that performs programming and erasing should be run in on-chip RAM or external memory. Figure 17.19 shows the procedure for executing the program/erase control program when transferred to on-chip RAM. Write the FWE assessment program and transfer program (and the program/ erase control program if necessary) to flash memory beforehand MD2, MD1, MD0 = 110, 111 Reset-start Transfer program/erase control program to RAM Branch to program/erase control program in RAM area FWE = high* (Enter user program mode) Execute program/erase control program (flash memory rewriting) Clear FWE* (Clear user program mode) Branch to flash memory application program Note: Do not apply a constant high level to the FWE pin. Apply a high level to the FWE pin only when the flash memory is programmed or erased. Also, while a high level is applied to the FWE pin, the watchdog timer should be activated to prevent overprogramming or overerasing due to program runaway, etc. * For further information on FWE application and disconnection, see section 17.14, Flash Memory Programming and Erasing Precautions. Figure 17.19 User Program Mode Execution Procedure 574 17.9 Programming/Erasing Flash Memory In the on-board programming modes, flash memory programming and erasing is performed by software, using the CPU. There are four flash memory operating modes: program mode, erase mode, program-verify mode, and erase-verify mode. Transitions to these modes can be made by setting the PSU and ESU bits in FLMCR2, and the P, E, PV, and EV bits in FLMCR1. Refer to figure 17.20 regarding mode transitions using the settings of the bits in FLMCR1 and FLMCR2. The flash memory cannot be read while being programmed or erased. Therefore, the program that controls flash memory programming/erasing (the programming control program) should be located and executed in on-chip RAM or external memory. Notes: 1. Operation is not guaranteed if setting/resetting of the SWE, EV, PV, E, and P bits in FLMCR1, and the ESU and PSU bits in FLMCR2, is executed by a program in flash memory. 2. When programming or erasing, set FWE to 1 (programming/erasing will not be executed if FWE = 0). 3. Perform programming in the erased state. Do not perform additional programming on previously programmed addresses. 575 *3 Erase setup status E=1 Erase mode E=0 User mode *1 ESU = 1 ESU = 0 *4 FWE = 1 FWE = 0 *2 EV = 1 EV = 0 PSU = 1 Erase verify mode On-board SWE = 1 Software programming mode overwrite enabled Software overwrite disabled status SWE = 0 status PSU = 0 Program setup status P=1 P=0 Program mode PV = 0 PV = 1 Program verify mode Notes: 1. : user mode, : on-board programming mode 2. Do not make transitions by setting or clearing multiple bits simultaneously. 3. After changing from erase mode to erase setup status, do not change back to erase mode except via software overwrite enable status. 4. After changing from program mode to program setup status, do not change back to program mode except via software overwrite enable status. Figure 17.20 Mode Transitions Using Settings of Bits in FLMCR1 and FLMCR2 17.9.1 Program Mode Follow the procedure shown in the program/program-verify flowchart in figure 17.21 to write data or programs to flash memory. Performing program operations according to this flowchart will enable data or programs to be written to flash memory without subjecting the device to voltage stress or sacrificing program data reliability. Programming should be carried out 32 bytes at a time. The wait times (x, y, z, , , , , ) after bits are set or cleared in flash memory control registers 1 and 2 (FLMCR1, FLMCR2) and the maximum number of programming operations (N) are shown in table 22.10 in section 20.1.6, Flash Memory Characteristics. Following the elapse of (x) s or more after the SWE bit is set to 1 in FLMCR1, 32-byte program data is stored in the program data area and reprogram data area, and the 32-byte data in the 576 reprogram data area written consecutively to the write addresses. The lower 8 bits of the first address written to must be H'00, H'20, H'40, H'60, H'80, H'A0, H'C0, or H'E0. Thirty-two consecutive byte data transfers are performed. The program address and program data are latched in the flash memory. A 32-byte data transfer must be performed even if writing fewer than 32 bytes; in this case, H'FF data must be written to the extra addresses. Next, the watchdog timer is set to prevent overprogramming in the event of program runaway, etc. Set a value greater than (y + z + + ) s as the WDT overflow period. After this, preparation for program mode (program setup) is carried out by setting the PSU bit in FLMCR2, and after the elapse of (y) s or more, the operating mode is switched to program mode by setting the P bit in FLMCR1. The time during which the P bit is set is the flash memory programming time. Make a program setting so that the time for one programming operation is within the range of (z) s. 17.9.2 Program-Verify Mode In program-verify mode, the data written in program mode is read to check whether it has been correctly written in the flash memory. After the elapse of a given programming time, the programming mode is exited (the P bit in FLMCR1 is cleared to 0, then the PSU bit in FLMCR2 is cleared to 0 at least () s later). Next, the watchdog timer is cleared after the elapse of (y + z + + ) s or more, and the operating mode is switched to program-verify mode by setting the PV bit in FLMCR1. Before reading in program-verify mode, a dummy write of H'FF data should be made to the addresses to be read. The dummy write should be executed after the elapse of () s or more. When the flash memory is read in this state (verify data is read in 16-bit units), the data at the latched address is read. Wait at least () s after the dummy write before performing this read operation. Next, the originally written data is compared with the verify data, and reprogram data is computed (see figure 17.21) and transferred to the reprogram data area. After 32 bytes of data have been verified, exit programverify mode, wait for at least () s, then clear the SWE bit in FLMCR1 to 0. If reprogramming is necessary, set program mode again, and repeat the program/program-verify sequence as before. However, ensure that the program/program-verify sequence is not repeated more than (N) times on the same bits. Note: An area in RAM for storing write data (32 bytes) and an area for storing rewrite data (32 bytes) are required. 577 Start Set SWE bit in FLMCR1 Wait (x) s Store 32-byte program data in program data area and reprogram data area n=1 m=0 Write 32-byte data in RAM reprogram data area consecutively to flash memory Enable WDT Set PSU bit in FLMCR2 Wait (y) s Set P bit in FLMCR1 Wait (z) s Clear P bit in FLMCR1 Wait () s Clear PSU bit in FLMCR2 Wait () s Disable WDT Set PV bit in FLMCR1 Wait () s H'FF dummy write to verify address Wait () s Read verify data Increment address Program data = verify data? OK Reprogram data computation Transfer reprogram data to reprogram data area NG End of 32-byte data verification? OK Clear PV bit in FLMCR1 Wait () s m = 0? OK Clear SWE bit in FLMCR1 End of programming *5 *3 *5 *5 *5 *5 *1 *5 Perform programming in the erased state. Do not perform additional programming on previously programmed addresses. *4 nn+1 Start of programming *5 End of programming *5 Notes: 1. Data transfer is performed by byte transfer. The lower 8 bits of the first address written to must be H'00, H'20, H'40, H'60, H'80, H'A0, H'C0, or H'E0. A 32-byte data transfer must be performed even if writing fewer than 32 bytes; in this case, H'FF data must be written to the extra addresses. 2. Verify data is read in 16-bit (word) units. 3. Even bits for which programming has been completed in a 32-byte programming loop will be subjected to additional programming if the subsequent verify operation fails. 4. An area for storing program data (32 bytes) and reprogram data (32 bytes) must be provided in RAM. The contents of the latter are rewritten as programming progresses. 5. The values of x, y, z, , , , , , and N are shown in section 20.1.6, Flash Memory Characteristics. Program Verify Reprogram Comments Data Data Data 0 0 1 Programmed bits are not reprogrammed 0 1 0 1 0 1 1 Programming incomplete; reprogram -- Still in erased state; no action *2 1 NG m=1 *3 1 Note: The memory erased state is 1. Programming is performed on 0 reprogram data. RAM Program data storage area (32 bytes) *4 Reprogram data storage area (32 bytes) n N? *5 NG NG OK Clear SWE bit in FLMCR1 Programming failure Figure 17.21 Program/Program-Verify Flowchart 578 17.9.3 Erase Mode Flash memory erasing should be performed block by block following the procedure shown in the erase/erase-verify flowchart (single-block erase) shown in figure 17.22. The wait times (x, y, z, , , , , ) after bits are set or cleared in flash memory control registers 1 and 2 (FLMCR1, FLMCR2) and the maximum number of programming operations (N) are shown in table 20.10 in section 20.1.6, Flash Memory Characteristics. To perform data or program erasure, make a 1 bit setting for the flash memory area to be erased in EBR1 or EBR2 at least (x) s after setting the SWE bit to 1 in FLMCR1. Next, the watchdog timer is set to prevent overerasing in the event of program runaway, etc. Set a value greater than (y + z + + ) s as the WDT overflow period. After this, preparation for erase mode (erase setup) is carried out by setting the ESU bit in FLMCR2, and after the elapse of (y) s or more, the operating mode is switched to erase mode by setting the E bit in FLMCR1. The time during which the E bit is set is the flash memory erase time. Ensure that the erase time does not exceed (z) ms. Note: With flash memory erasing, preprogramming (setting all data in the memory to be erased to 0) is not necessary before starting the erase procedure. 17.9.4 Erase-Verify Mode In erase-verify mode, data is read after memory has been erased to check whether it has been correctly erased. After the elapse of the erase time, erase mode is exited (the E bit in FLMCR1 is cleared to 0, then the ESU bit in FLMCR2 is cleared to 0 at least () s later), the watchdog timer is cleared after the elapse of (y + z + + ) s or more, and the operating mode is switched to erase-verify mode by setting the EV bit in FLMCR1. Before reading in erase-verify mode, a dummy write of H'FF data should be made to the addresses to be read. The dummy write should be executed after the elapse of () s or more. When the flash memory is read in this state (verify data is read in 16-bit units), the data at the latched address is read. Wait at least () s after the dummy write before performing this read operation. If the read data has been erased (all 1), a dummy write is performed to the next address, and erase-verify is performed. If the read data has not been erased, set erase mode again, and repeat the erase/erase-verify sequence in the same way. However, ensure that the erase/eraseverify sequence is not repeated more than (N) times. When verification is completed, exit eraseverify mode, and wait for at least () s. If erasure has been completed on all the erase blocks, clear the SWE bit in FLMCR1 to 0. If there are any unerased blocks, make a 1 bit setting in EBR1 or EBR2 for the flash memory area to be erased, and repeat the erase/erase-verify sequence in the same way. 579 Start *1 Set SWE bit in FLMCR1 Wait (x) s n=1 Set EBR1, EBR2 Enable WDT Set ESU bit in FLMCR2 Wait (y) s Set E bit in FLMCR1 Wait (z) ms Clear E bit in FLMCR1 Wait () s Clear ESU bit in FLMCR2 Wait () s Disable WDT Set EV bit in FLMCR1 Wait () s Set block start address to verify address *2 *2 *2 *4 *2 Start of erase *2 Halt erase *2 nn+1 H'FF dummy write to verify address Wait () s Increment address Read verify data Verify data = all 1? OK NG Last address of block? OK Clear EV bit in FLMCR1 Wait () s *2 *2 *3 NG Clear EV bit in FLMCR1 Wait () s *2 *2 NG *5 End of erasing of all erase blocks? OK n N? OK Clear SWE bit in FLMCR1 Erase failure NG Clear SWE bit in FLMCR1 End of erasing Notes: 1. 2. 3. 4. 5. Preprogramming (setting erase block data to all 0) is not necessary. The values of x, y, z, , , , , , and N are shown in section 20.1.6, Flash Memory Characteristics. Verify data is read in 16-bit (word) units. Set only one bit in EBR1or EBR2. More than one bit cannot be set. Erasing is performed in block units. To erase a number of blocks, the individual blocks must be erased sequentially. Figure 17.22 Erase/Erase-Verify Flowchart (Single-Block Erase) 580 17.10 Flash Memory Protection There are three kinds of flash memory program/erase protection: hardware protection, software protection, and error protection. 17.10.1 Hardware Protection Hardware protection refers to a state in which programming/erasing of flash memory is forcibly disabled or aborted. Hardware protection is reset by settings in flash memory control registers 1 and 2 (FLMCR1, FLMCR2) and erase block registers 1 and 2 (EBR1, EBR2). (See table 17.16.) Table 17.16 Hardware Protection Functions Item FWE pin protection Description * When a low level is input to the FWE pin, FLMCR1, FLMCR2 (excluding the FLER bit), EBR1, and EBR2 are initialized, and the program/erase-protected state is entered. In a reset (including a WDT overflow reset) and in standby mode, FLMCR1, FLMCR2, EBR1, and EBR2 are initialized, and the program/erase-protected state is entered. In a reset via the RES pin, the reset state is not entered unless the RES pin is held low until oscillation stabilizes after powering on. In the case of a reset during operation, hold the RES pin low for the RES pulse width (t RESW) specified in the AC Characteristics section. Program Erase No No Verify* No Reset/standby protection * No No No * Note: * Program verify and erase verify modes. 17.10.2 Software Protection Software protection can be implemented by setting the SWE bit in FLMCR1, erase block registers 1 and 2 (EBR1, EBR2), and the RAMS bit in RAMER. When software protection is in effect, setting the P or E bit in flash memory control register 1 (FLMCR1) does not cause a transition to program mode or erase mode. (See table 17.17.) 581 Table 17.17 Software Protection Functions Item SWE bit protection Description * Clearing the SWE bit to 0 in FLMCR1 sets the program/erase-protected state for all blocks. (Execute in on-chip RAM or external memory.) Block specification protection * Erase protection can be set for individual blocks by settings in erase block registers 1 and 2 (EBR1, EBR2). However, write protection is disabled. * Emulation protection * Setting EBR1 and EBR2 to H'00 places all blocks in the erase-protected state. Setting the RAMS bit to 1 in the RAM emulation register (RAMER) places all blocks in the program/erase-protected state. No No Yes -- No Yes Program Erase No No Verify* No Note: * Program verify and erase verify modes. 17.10.3 Error Protection In error protection, an error is detected when MCU runaway occurs during flash memory programming/erasing, or operation is not performed in accordance with the program/erase algorithm, and the program/erase operation is aborted. Aborting the program/erase operation prevents damage to the flash memory due to overprogramming or overerasing. If the MCU malfunctions during flash memory programming/erasing, the FLER bit is set to 1 in FLMCR2 and the error protection state is entered. The FLMCR1, FLMCR2, EBR1, and EBR2 settings are retained, but program mode or erase mode is aborted at the point at which the error occurred. When the FLER bit is set to 1, it is not possible to re-enter the program mode or erase mode by resetting the P and E bits of FLMCR1. However, setting of the PV and EV bits of FLMCR1 is enabled, and a transition can be made to verify mode. 582 FLER bit setting conditions are as follows: * When flash memory is read during programming/erasing (including a vector read or instruction fetch) * Immediately after exception handling (excluding a reset) during programming/erasing * When a SLEEP instruction (including software standby) is executed during programming/erasing * When the CPU loses the bus during programming/erasing Error protection is released only by a reset and in hardware standby mode. Figure 17.23 shows the flash memory state transition diagram. Memory read verify mode P = 1 or E=1 RD VF PR ER FLER = 0 P = 0 and E=0 Normal operating mode Program mode Erase mode RD VF PR ER FLER = 0 Error occurrence (software standby) Error occurrence RES = 0 or STBY = 0 RES = 0 or STBY = 0 RES = 0 or STBY = 0 or software standby Reset release and hardware standby release and software standby release Reset or hardware standby (hardware protection) RD VF PR ER FLER = 0 FLMCR1, FLMCR2, EBR1, EBR2 initialization state RES = 0 or STBY = 0 Error protection mode RD VF PR ER FLER = 1 Software standby mode Software standby mode release Error protection mode (software standby) RD VF PR ER FLER = 1 FLMCR1, FLMCR2 (except FLER bit), EBR1, EBR2 initialization state Legend: RD: Memory read possible VF: Verify-read possible PR: Programming possible ER: Erasing possible RD: VF: PR: ER: Memory read not possible Verify-read not possible Programming not possible Erasing not possible Figure 17.23 Flash Memory State Transitions 583 The error protect function has no effect on illegal operations unrelated to the setting conditions for the FLER bit. Also, if a significant amount of time has elapsed before the transition to the protect status, there is a possibility that the data in flash memory may already have become corrupted. Consequently, this function is not able to provide complete protection against corruption of the data in flash memory. For this reason, it is necessary to run program and erase algorithms correctly while flash write enable (FWE) is being applied and to monitor the internal operation of the microcomputer for abnormalities using a watchdog timer, or the like, in order to prevent illegal operations of the sort mentioned above. Also, at the point when the transition is made to the protect mode, in some cases the flash memory may be in an erroneously programmed or erased status, or the programming or erasing may be incomplete due to a forced shutdown. In such a case, make sure to force a recovery (program rewrite) using the boot mode. Note that there may still be cases in which boot mode cannot be started normally due to excessive programming or erasing of the flash memory. 584 17.11 17.11.1 Flash Memory Emulation in RAM Emulation in RAM Since programming or erasing the flash memory takes time, it may be difficult to perform tuning by overwriting parameters and other data in real time. In such cases, making a setting in the RAM emulation register (RAMER) enables part of RAM to be overlapped onto the flash memory area so that data to be written to flash memory can be emulated in RAM in real time. After the RAMER setting has been made, accesses can be made from the flash memory area or the RAM area overlapping flash memory. Emulation can be performed in user mode and user program mode. Figure 17.24 shows an example of emulation of real-time flash memory programming. Start emulation program Set RAMER Write tuning data to overlap RAM Execute application program No Tuning OK? Yes Clear RAMER Write to flash memory emulation block End of emulation program Figure 17.24 Flowchart for Flash Memory Emulation in RAM 585 17.11.2 RAM Overlap An example in which flash memory block area EB1 is overlapped is shown below. H'000000 H'000400 H'000800 H'000C00 EB0 EB1 EB2 EB3 This area can be accessed from both the RAM area and flash memory area Flash memory EB4 to EB9 H'FFEC00 H'FFEFFF On-chip RAM Figure 17.25 Example of RAM Overlap Operation Example in Which Flash Memory Block Area (EB1) is Overlapped 1. Set bits RAMS, RAM1, and RAM0 in RAMER to 1, 0, 1, to overlap part of RAM onto the area (EB1) for which real-time programming is required. 2. Real-time programming is performed using the overlapping RAM. 3. After the program data has been confirmed, the RAMS bit is cleared, releasing RAM overlap. 4. The data written in the overlapping RAM is written into the flash memory space (EB1). Notes: 1. When the RAMS bit is set to 1, program/erase protection is enabled for all blocks regardless of the value of RAM1 and RAM0 (emulation protection). In this state, setting the P or E bit in flash memory control register 1 (FLMCR1) will not cause a transition to program mode or erase mode. When actually programming a flash memory area, the RAMS bit should be cleared to 0. 2. A RAM area cannot be erased by execution of software in accordance with the erase algorithm while flash memory emulation in RAM is being used. 3. Block area EB0 includes the vector table. When performing RAM emulation, the vector table is needed by the overlap RAM. 586 17.12 Interrupt Handling when Programming/Erasing Flash Memory All interrupts, including NMI interrupt is disabled when flash memory is being programmed or erased (when the P or E bit is set in FLMCR1), and while the boot program is executing in boot mode*1, to give priority to the program or erase operation. There are three reasons for this: 1. Interrupt during programming or erasing might cause a violation of the programming or erasing algorithm, with the result that normal operation could not be assured. 2. In the interrupt exception handling sequence during programming or erasing, the vector would not be read correctly*2, possibly resulting in MCU runaway. 3. If interrupt occurred during boot program execution, it would not be possible to execute the normal boot mode sequence. For these reasons, in on-board programming mode alone there are conditions for disabling interrupt, as an exception to the general rule. However, this provision does not guarantee normal erasing and programming or MCU operation. All requests, including NMI interrupt, must therefore be restricted inside and outside the MCU when programming or erasing flash memory. NMI interrupt is also disabled in the error-protection state while the P or E bit remains set in FLMCR1. Notes: 1. Interrupt requests must be disabled inside and outside the MCU until the programming control program has completed programming. 2. The vector may not be read correctly in this case for the following two reasons: * If flash memory is read while being programmed or erased (while the P or E bit is set in FLMCR1), correct read data will not be obtained (undetermined values will be returned). * If the interrupt entry in the vector table has not been programmed yet, interrupt exception handling will not be executed correctly. 587 17.13 17.13.1 Flash Memory Writer Mode Writer Mode Setting Programs and data can be written and erased in writer mode as well as in the on-board programming modes. In writer mode, the on-chip ROM can be freely programmed using a PROM programmer that supports Hitachi microcomputer device types with 128-kbyte on-chip flash memory. In writer mode, the on-chip ROM can be freely programmed using a PROM programmer that supports the Hitachi microcomputer device type with 128-kbyte on-chip flash memory. Flash memory read mode, auto-program mode, auto-erase mode, and status read mode are supported with this device type. In auto-program mode, auto-erase mode, and status read mode, a status polling procedure is used, and in status read mode, detailed internal signals are output after execution of an auto-program or auto-erase operation. Table 17.18 shows writer mode pin settings. Table 17.18 Writer Mode Pin Settings Pin Names Mode pins: MD 2, MD1, MD0 Mode setting pins: PF2, PF 1, PF 0 FWE pin STBY pin RES pin NMI pin XTAL, EXTAL pins Other pins requiring setting: P23, P25 Settings/External Circuit Connection Low-level input High-level input to PF2, low-level input to PF1 and PF 0 High-level input (in auto-program and auto-erase modes) High-level input (do not select hardware standby mode) Power-on reset circuit High-level input (for power-on reset) Oscillator circuit High-level input to P2 3 and P25 588 17.13.2 Socket Adapters and Memory Map In writer mode, a socket adapter is mounted on the writer programmer to match the package concerned. Socket adapters are available for each writer manufacturer supporting the Hitachi microcomputer device type with 128-kbyte on-chip flash memory. The model numbers of compatible socket adapters are listed in table 17.19. Figure 17.26 shows socket adapter pin correspondences and figure 17.26 shows the memory map in writer mode. For pin names in writer mode, see section 1.3.2, Pin Functions in Each Operating Mode. Table 17.19 Socket Adapter Name Socket Adapter Name Product Model HD64F2345 Package Name 100-pin TQFP (TFP-100B) 100-pin TQFP (TFP-100G) 100-pin QFP (FP-100A) 100-pin QFP (FP-100B) Minato Electronics ME2345ESNF1H ME2345ESMF1H ME2345ESFF1H ME2345ESHF1H Data I/O Japan HF234BT100D3201 HF234GT100D3201 HF234AQ100D3201 HF234BQ100D3201 589 MCU mode H'000000 H8S/2345 Writer mode H'00000 On-chip ROM area H'01FFFF H'1FFFF Figure 17.26 Memory Map in Writer Mode 17.13.3 Writer Mode Operation Table 17.20 shows how the different operating modes are set when using writer mode, and table 17.21 lists the commands used in writer mode. Details of each mode are given below. * Memory Read Mode Memory read mode supports byte reads. * Auto-Program Mode Auto-program mode supports programming of 128 bytes at a time. Status polling is used to confirm the end of auto-programming. * Auto-Erase Mode Auto-erase mode supports automatic erasing of the entire flash memory. Status polling is used to confirm the end of auto-erasing. * Status Read Mode Status polling is used for auto-programming and auto-erasing, and normal termination can be confirmed by reading the FO6 signal. In status read mode, error information is output if an error occurs. 590 Table 17.20 Settings for Each Operating Mode in Writer Mode Pin Names Mode Read Output disable Command write Chip disable*1 FWE H or L H or L H or L* H or L 3 CE L L L H OE L H H X WE H H L X FO0 to FO7 Data output Hi-z Data input Hi-z FA0 to FA16 Ain X Ain*2 X Legend: H: High level L: Low level X: Don't care Hi-z: High impedance Notes: 1. Chip disable is not a standby state; internally, it is an operation state. 2. Ain indicates that there is also address input in auto-program mode. 3. For command writes when making a transition to auto-program or auto-erase mode, input a high level to the FWE pin. Table 17.21 Writer Mode Commands Number of Cycles 1 + n* 129* 2 2 2 1 1st Cycle Mode Write Write Write Write Address Data X X X X H'00 H'40 H'20 H'71 Mode Read Write Write Write 2nd Cycle Address Data RA WA X X Dout Din H'20 H'71 Command Name Memory read mode Auto-program mode Auto-erase mode Status read mode Legend: RA: Read address WA: Program address (Write address) Dout: Read data Din: Program data Notes: 1. In memory read mode, the number of cycles depends on the number of address write cycles (n). 2. In auto-program mode. 129 cycles are required for command writing by a simultaneous 128-byte write. 591 Table 17.22 DC Characteristics in Memory Read Mode (Conditions: VCC = 5.0 V 10%, VSS = 0 V, Ta = 25C 5C) Item Input high-level voltage Input low-level voltage Schmitt trigger input voltage FO7-FO 0, FA 16 -FA 0 FO7-FO 0, FA 16 -FA 0 OE, CE, WE Symbol VIH VIL VT- VT+ VT+-VT- Output high-level voltage Output low-level voltage Input leak current VCC current FO7-FO 0 FO7-FO 0 FO7-FO 0, FA 16 -FA 0 During read VOH VOL | ILI | I CC Min 2.2 0.3 1.0 2.0 0.4 2.4 -- -- -- -- -- Typ -- -- -- -- -- -- -- -- 40 50 50 Max VCC + 0.3 0.8 2.5 3.5 -- -- 0.45 2 65 85 85 Test Unit Conditions V V V V V V V A mA mA mA I OH = -200 A I OL = 1.6 mA During programming I CC During erasing I CC Note: Refer to the maximum rating for the F-ZTAT version "20.1.1 Absolute Maximum Ratings." If the maximum rating is exceeded, the LSI may be damaged permanently. 17.13.4 Memory Read Mode * After the end of an auto-program, auto-erase, or status read operation, the command wait state is entered. To read memory contents, a transition must be made to memory read mode by means of a command write before the read is executed. * Command writes can be performed in memory read mode, just as in the command wait state. * Once memory read mode has been entered, consecutive reads can be performed. * After power-on, memory read mode is entered. 592 AC Characteristics Table 17.23 AC Characteristics in Memory Read Mode Transition AC Characteristics (Conditions: VCC = 5.0 V 10%, VSS = 0 V, Ta = 25C 5C) Item Command write cycle CE hold time CE setup time Data hold time Data setup time Write pulse width WE rise time WE fall time Symbol t nxtc t ceh t ces t dh t ds t wep tr tf Min 20 0 0 50 50 70 30 30 Max Unit s ns ns ns ns ns ns ns Notes Command write Address Memory read mode Address stable CE OE WE Data twep tceh tnxtc tces tf tr H'00 tdh tds Data Note: Data is latched on the rising edge of WE. Figure 17.27 Memory Read Mode Transition Timing Waveforms 593 Table 17.24 AC Characteristics in Memory Read Mode (Conditions: VCC = 5.0 V 10%, VSS = 0 V, Ta = 25C 5C) Item Access time CE output delay time OE output delay time Output disable delay time Data output hold time Symbol t acc t ce t oe t df t oh 5 Min Max 20 150 150 100 Unit s ns ns ns ns Notes Address Address stable Address stable VIL tacc VIL VIH CE OE WE tacc Data Data toh Data toh Figure 17.28 Timing Waveforms for CE/OE Enable State Read Address Address stable Address stable tacc CE tce toe tce toe VIH OE WE tacc Data tdf Data toh Data tdf toh Figure 17.29 Timing Waveforms for CE/OE Clocked Read 594 Table 17.25 AC Characteristics when Entering Another Mode from Memory Read Mode (Conditions: VCC = 5.0 V 10%, VSS = 0 V, Ta = 25C 5C) Item Command write cycle CE hold time CE setup time Data hold time Data setup time Write pulse width WE rise time WE fall time Symbol t nxtc t ceh t ces t dh t ds t wep tr tf Min 20 0 0 50 50 70 30 30 Max Unit s ns ns ns ns ns ns ns Notes Memory read mode Address Address stable XX mode command write CE OE WE Data tnxtc tces tf twep tceh tr H'XX tdh Data Note: Do not enable WE and OE at the same time. tds Figure 17.30 Timing Waveforms when Entering Another Mode from Memory Read Mode 595 17.13.5 Auto-Program Mode AC Characteristics: The auto-program mode supports the writing of 128 bytes simultaneously. Table 17.26 AC Characteristics in Auto-Program Mode (Conditions: VCC = 5.0 V 10%, VSS = 0 V, Ta = 25C 5C) Item Command write cycle CE hold time CE setup time Data hold time Data setup time Write pulse width Status polling start time Status polling access time Address setup time Address hold time Memory write time WE rise time WE fall time Write setup time Write end setup time Symbol t nxtc t ceh t ces t dh t ds t wep t wsts t spa t as t ah t write tr tf t pns t pnh 100 100 0 60 1 3000 30 30 Min 20 0 0 50 50 70 1 150 Max Unit s ns ns ns ns ns ms ns ns ns ms ns ns ns ns Notes 596 FWE Address tpns Address stable tpnh tceh CE tnxtc OE twep WE tces tf tds tdh FO6 Data H'40 tas tah tnxtc Data transfer 1 byte to 128 bytes twsts tspa twrite (1 to 3000 ms) Programming operation end identification signal FO7 tr Programming normal end identification signal Programming wait Data Data FO0 to FO5 = 0 Figure 17.31 Auto-Program Mode Timing Waveforms Notes on Use of Auto-Program Mode * In auto-program mode, 128 bytes are programmed simultaneously. This should be carried out by executing 128 consecutive byte transfers. * A 128-byte data transfer is necessary even when programming fewer than 128 bytes. In this case, H'FF data must be written to the extra addresses. * The lower 8 bits of the transfer address must be H'00 or H'80. If a value other than an effective address is input, processing will switch to a memory write operation but a write error will be flagged. * Memory address transfer is performed in the second cycle (figure 17.31). Do not perform memory address transfer after the second cycle. * Do not perform a command write during a programming operation. * Perform one auto-programming operation for a 128-byte block for each address. Characteristics are not guaranteed for two or more programming operations. * Confirm normal end of auto-programming by checking FO6. Alternatively, status read mode can also be used for this purpose (FO7 status polling uses the auto-program operation end identification pin). * The status polling FO6 and FO7 pin information is retained until the next command write. Until the next command write is performed, reading is possible by enabling CE and OE. 597 17.13.6 Auto-Erase Mode Autro-erase mode supports only automatic erasure of the entire flash memory mat. AC Characteristics Table 17.27 AC Characteristics in Auto-Erase Mode (Conditions: VCC = 5.0 V 10%, VSS = 0 V, Ta = 25C 5C) Item Command write cycle CE hold time CE setup time Data hold time Data setup time Write pulse width Status polling start time Status polling access time Memory erase time WE rise time WE fall time Erase setup time Erase end setup time Symbol t nxtc t ceh t ces t dh t ds t wep t ests t spa t erase tr tf t ens t enh 100 100 100 Min 20 0 0 50 50 70 1 150 40000 30 30 Max Unit s ns ns ns ns ns ms ns ms ns ns ns ns Notes 598 FWE tens Address tces CE tspa OE WE FO7 FO6 CLin Data H'20 DLin H'20 FO0 to FO5 = 0 twep tf tds tdh tr tnxtc tests terase (100 to 40000 ms) Erase end identification signal Erase normal end confirmation signal tenh tceh tnxtc Figure 17.32 Auto-Erase Mode Timing Waveforms Notes on Use of Erase-Program Mode * Auto-erase mode supports only entire memory erasing. * Do not perform a command write during auto-erasing. * Confirm normal end of auto-erasing by checking FO6. Alternatively, status read mode can also be used for this purpose (FO7 status polling uses the auto-erase operation end identification pin). * The status polling FO6 and FO7 pin information is retained until the next command write. Until the next command write is performed, reading is possible by enabling CE and OE. 17.13.7 Status Read Mode * Status read mode is used to identify what type of abnormal end has occurred. Use this mode when an abnormal end occurs in auto-program mode or auto-erase mode. * The return code is retained until a command write for other than status read mode is performed. 599 AC Characteristics Table 17.28 AC Characteristics in Status Read Mode (Conditions: VCC = 5.0 V 10%, VSS = 0 V, Ta = 25C 5C) Item Command write cycle CE hold time CE setup time Data hold time Data setup time Write pulse width OE output delay time Disable delay time CE output delay time WE rise time WE fall time Symbol t nxtc t ceh t ces t dh t ds t wep t oe t df t ce tr tf Min 20 0 0 50 50 70 150 100 150 30 30 Max Unit s ns ns ns ns ns ns ns ns ns ns Notes Address CE tce OE twep WE tces tf tds tdh Data H'71 tceh tr tnxtc tces tf tds tdh H'71 Data twep tceh tr tnxtc toe tnxtc tdf Note: FO2 and FO3 are undefined. Figure 17.33 Status Read Mode Timing Waveforms 600 Table 17.29 Status Read Mode Return Commands Pin Name FO7 Attribute FO6 FO5 Programming error FO4 Erase error FO3* -- FO2* -- FO1 FO0 Normal Command end error identification 0 Command error: 1 ProgramEffective ming or address error erase count exceeded 0 0 Initial value 0 Indications Normal end: 0 Abnormal end: 1 0 0 0 0 -- ProgramErase -- ming error: 1 Otherwise: 0 error: 1 Otherwise: 0 Otherwise: 0 Count Effective exceeded: 1 address Otherwise: 0 error: 1 Otherwise: 0 Note: * FO2 and FO 3 are undefined. Status Read Mode Usage Note: After the auto-program mode or auto-erase mode has completed, make sure to enter the status read mode before powering off the system. The return commands are undefined immediately after power-on or if the system has been powered off once. 17.13.8 Status Polling * The FO7 status polling flag indicates the operating status in auto-program or auto-erase mode. * The FO6 status polling flag indicates a normal or abnormal end in auto-program or auto-erase mode. Table 17.30 Status Polling Output Truth Table Pin Names FO7 FO6 FO0 to FO5 Internal Operation in Progress 0 0 0 Abnormal End 1 0 0 -- 0 1 0 Normal End 1 1 0 601 17.13.9 Writer Mode Transition Time Commands cannot be accepted during the oscillation stabilization period or the writer mode setup period. After the writer mode setup time, a transition is made to memory read mode. Table 17.31 Command Wait State Transition Time Specifications Item Standby release (oscillation stabilization time) Writer mode setup time VCC hold time Symbol t osc1 t bmv t dwn Min 10 10 0 Max -- -- -- Unit ms ms ms Notes VCC RES FWE tosc1 tbmv Memory read Auto-program mode mode Auto-erase mode Command wait state tdwn Command Don't care wait state Normal/ abnormal end identification Don't care Note: Except in auto-program mode and auto-erase mode, drive the FWE input pin low. Figure 17.34 Oscillation Stabilization Time, Writer Mode Setup Time, and Power Supply Fall Sequence 17.13.10 Notes On Memory Programming * When programming addresses which have previously been programmed, carry out autoerasing before auto-programming. (See figure 17.35.) * When performing programming using writer mode on a chip that has been programmed/erased in an on-board programming mode, auto-erasing is recommended before carrying out autoprogramming. Notes: 1. The flash memory is initially in the erased state when the device is shipped by Hitachi. For other chips for which the erasure history is unknown, it is recommended that autoerasing be executed to check and supplement the initialization (erase) level. 2. Auto-programming in the writer mode should be performed only once for each 128byte write unit block. It is not possible to write additional data to a 128-byte write unit block that has already been programmed. To reprogram a block, first use the auto-erase mode and then use the auto-program mode. 602 Reprogramming an address that has already been programmed Auto-erase (all of flash memory) Auto-program End Figure 17.35 Reprogramming an Address that has Already Been Programmed 17.14 Flash Memory Programming and Erasing Precautions Precautions concerning the use of on-board programming mode, the RAM emulation function, and writer mode are summarized below. Use the specified voltages and timing for programming and erasing: Applied voltages in excess of the rating can permanently damage the device. Use a PROM programmer that supports Hitachi microcomputer device types with 128-kbyte on-chip flash memory. Do not select the HN28F101 setting for the PROM programmer, and only use the specified socket adapter. Incorrect use will result in damaging the device. Powering on and off (see figures 17.36 to 17.38): Do not apply a high level to the FWE pin until VCC has stabilized. Also, drive the FWE pin low before turning off VCC. When applying or disconnecting VCC, fix the FWE pin low and place the flash memory in the hardware protection state. The power-on and power-off timing requirements should also be satisfied in the event of a power failure and subsequent recovery. If these timing requirements are not satisfied, the microcomputer experience program runaway, possibly resulting in excessive programming and erasing that could cause the memory cell to no longer operate properly. FWE pin application/disconnection (see figure 19.36 to figure 19.38): FWE pin application should be carried out when MCU operation is in a stable condition. If MCU operation is not stable, fix the FWE pin low and set the protection state. 603 The following points must be observed concerning FWE pin application and disconnection to prevent unintentional programming or erasing of flash memory: * Apply the FWE pin when the VCC voltage has stabilized within its rated voltage range. Apply the FWE pin when oscillation has stabilized (after the oscillation settling time t OSC1 has elapsed). * In boot mode, apply and disconnect the FWE pin during a reset. * In user program mode, the FWE pin can be switched between high and low level regardless of the reset state. FWE pin input can also be switched during program execution in flash memory. * Do not apply the FWE pin if program runaway has occurred. * Disconnect the FWE pin only when the SWE, ESU, PSU, EV, PV, P, and E bits in FLMCR1 and FLMCR2 are cleared. * Make sure that the SWE, ESU, PSU, EV, PV, P, and E bits are not set by mistake when applying or disconnecting the FWE pin. Do not apply a constant high level to the FWE pin: The only time a high level should be applied to the FWE pin in order to prevent erroneous programming or erasing due to program runaway is when programming or erasing flash memory (including when RAM is being used to emulate flash memory). A system configuration in which a high level is constantly applied to the FWE should be avoided. Also, while a high level is applied to the FWE pin, the watchdog timer should be activated to prevent overprogramming or overerasing due to program runaway, etc. Use the recommended algorithm when programming and erasing flash memory: The recommended algorithm enables programming and erasing to be carried out without subjecting the device to voltage stress or sacrificing program data reliability. When setting the P or E bit in FLMCR1, the watchdog timer should be set beforehand as a precaution against program runaway, etc. Do not set or clear the SWE bit during program execution in flash memory: Clear the SWE bit before executing a program or reading data in flash memory. When the SWE bit is set, data in flash memory can be rewritten, but flash memory should only be accessed for verify operations (verification during programming/erasing). Similarly, when using the RAM emulation function while a high level is being input to the FWE pin, the SWE bit must be cleared before executing a program or reading data in flash memory. However, the RAM area overlapping flash memory space can be read and written to regardless of whether the SWE bit is set or cleared. Do not use interrupts while flash memory is being programmed or erased: All interrupt requests, including NMI, should be disabled during FWE application to give priority to program/erase operations (including when RAM is being used to emulate flash memory). Also, it is necessary to prohibit release of the bus. 604 Do not perform additional programming. Erase the memory before reprogramming. In onboard programming, perform only one programming operation on a 32-byte programming unit block. In writer mode, too, perform only one programming operation on a 128-byte programming unit block. Programming should be carried out with the entire programming unit block erased. Before programming, check that the chip is correctly mounted in the PROM programmer. Overcurrent damage to the device can result if the index marks on the PROM programmer socket, socket adapter, and chip are not correctly aligned. Do not touch the socket adapter or chip during programming. Touching either of these can cause contact faults and write errors. Programming and erase possible Wait time: x tOSC1 VCC tMDS*3 Min 0 s Min 0 s FWE MD2 to MD0*1 tMDS*3 RES SWE set SWE bit SWE clear Flash memory access disabled period (x: Wait time after SWE setting)*2 Flash memory reprogrammable period (Flash memory program execution and data read, other than verify, are disabled.) Notes: 1. Always fix the level by pulling down or pulling up the mode pins (MD2 to MD0) until powering off, except for mode switching. 2. See section 20.1.6 Flash Memory Characteristics. 3. Mode programming setup time tMDS. Figure 17.36 Powering On/Off Timing (Boot Mode) 605 Programming and erase possible Wait time: x tOSC1 VCC Min 0 s FWE MD2 to MD0*1 tMDS*3 RES SWE set SWE bit User mode Flash memory access disabled period (x: Wait time after SWE setting) *2 Flash memory reprogrammable period (Flash memory program execution and data read, other than verify, are disabled.) Notes: 1. Always fix the level by pulling down or pulling up the mode pins (MD2 to MD0) up to powering off, except for mode switching. 2. See section 20.1.6 Flash Memory Characteristics. 3. Mode programming setup time tMDS. SWE clear User program mode Figure 17.37 Powering On/Off Timing (User Program Mode) 606 Programming and Wait time: x erase possible Programming and Wait erase Wait time: x possible time: x Programming and erase possible Wait time: x Programming and erase possible tOSC1 VCC Min 0 s FWE tMDS tMDS *2 MD2 to MD0 tMDS tRESW RES SWE set SWE clear SWE bit User program mode Mode switching * 1 Boot mode Mode User switching * 1 mode User program mode User mode Flash memory access disabled period (x: Wait time after SWE setting) *3 Flash memory reprogammable period (Flash memory program execution and data read, other than verify, are disabled.) Notes: 1. In transition to the boot mode and transition from the boot mode to another mode, mode switching via RES input is necessary. During this switching period (period during which a low level is input to the RES pin), the state of the address dual port and bus control output signals (AS, RD, HUR, LWR) changes. Therefore, do not use these pins as output signals during this switching period. 2. When making a transition from the boot mode to another mode, the mode programming setup time tMDS relative to the RES clear timing is necessary. 3. See section 20.1.6 Flash Memory Characteristics. Figure 17.38 Mode Transition Timing (Example: Boot Mode User Mode User Program Mode 607 Section 18 Clock Pulse Generator 18.1 Overview The H8S/2345 Series has a built-in clock pulse generator (CPG) that generates the system clock (o), the bus master clock, and internal clocks. The clock pulse generator consists of an oscillator circuit, a duty adjustment circuit, a mediumspeed clock divider, and a bus master clock selection circuit. 18.1.1 Block Diagram Figure 18.1 shows a block diagram of the clock pulse generator. SCKCR SCK2 to SCK0 Mediumspeed divider EXTAL Oscillator XTAL Duty adjustment circuit o/2 to o/32 Bus master clock selection circuit System clock to o pin Internal clock to supporting modules Bus master clock to CPU and DTC Figure 18.1 Block Diagram of Clock Pulse Generator 18.1.2 Register Configuration The clock pulse generator is controlled by SCKCR. Table 18.1 shows the register configuration. Table 18.1 Clock Pulse Generator Register Name System clock control register Abbreviation SCKCR R/W R/W Initial Value H'00 Address* H'FF3A Note:* Lower 16 bits of the address. 609 18.2 18.2.1 Bit Register Descriptions System Clock Control Register (SCKCR) : 7 PSTOP 0 R/W 6 -- 0 R/W 5 -- 0 -- 4 -- 0 -- 3 -- 0 -- 2 SCK2 0 R/W 1 SCK1 0 R/W 0 SCK0 0 R/W Initial value: R/W : SCKCR is an 8-bit readable/writable register that performs o clock output control and mediumspeed mode control. SCKCR is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 7--o Clock Output Disable (PSTOP): Controls o output. Description Bit 7 PSTOP 0 1 Normal Operation o output (initial value) Fixed high Sleep Mode o output Fixed high Software Standby Mode Fixed high Fixed high Hardware Standby Mode High impedance High impedance Bit 6--Reserved: This bit can be read or written to, but only 0 should be written. Bits 5 to 3--Reserved: Read-only bits, always read as 0. Bits 2 to 0--System Clock Select 2 to 0 (SCK2 to SCK0): These bits select the clock for the bus master. Bit 2 SCK2 0 Bit 1 SCK1 0 Bit 0 SCK0 0 1 1 0 1 1 0 0 1 1 -- Description Bus master is in high-speed mode Medium-speed clock is o/2 Medium-speed clock is o/4 Medium-speed clock is o/8 Medium-speed clock is o/16 Medium-speed clock is o/32 -- (Initial value) 610 18.3 Oscillator Clock pulses can be supplied by connecting a crystal resonator, or by input of an external clock. 18.3.1 Connecting a Crystal Resonator Circuit Configuration: A crystal resonator can be connected as shown in the example in figure 18.2. Select the damping resistance Rd according to table 18.2. An AT-cut parallel-resonance crystal should be used. CL1 EXTAL XTAL Rd CL2 CL1 = CL2 = 10 to 22pF Figure 18.2 Connection of Crystal Resonator (Example) Table 18.2 Damping Resistance Value Frequency (MHz) Rd () 2 1k 4 500 8 200 12 0 16 0 20 0 Crystal Resonator: Figure 18.3 shows the equivalent circuit of the crystal resonator. Use a crystal resonator that has the characteristics shown in table 18.3 and the same resonance frequency as the system clock (o). CL L XTAL Rs EXTAL AT-cut parallel-resonance type C0 Figure 18.3 Crystal Resonator Equivalent Circuit 611 Table 18.3 Crystal Resonator Parameters Frequency (MHz) RS max () C0 max (pF) 2 500 7 4 120 7 8 80 7 12 60 7 16 50 7 20 40 7 Note on Board Design: When a crystal resonator is connected, the following points should be noted: Other signal lines should be routed away from the oscillator circuit to prevent induction from interfering with correct oscillation. See figure 18.4. When designing the board, place the crystal resonator and its load capacitors as close as possible to the XTAL and EXTAL pins. Avoid CL2 Signal A Signal B H8S/2345 XTAL EXTAL CL1 Figure 18.4 Example of Incorrect Board Design 612 18.3.2 External Clock Input Circuit Configuration: An external clock signal can be input as shown in the examples in figure 18.5. If the XTAL pin is left open, make sure that stray capacitance is no more than 10 pF. In example (b), make sure that the external clock is held high in standby mode. EXTAL XTAL Open External clock input (a) XTAL pin left open EXTAL XTAL External clock input (b) Complementary clock input at XTAL pin Figure 18.5 External Clock Input (Examples) External Clock: The external clock signal should have the same frequency as the system clock (o). Table 18.4 and figure 18.6 show the input conditions for the external clock. 613 Table 18.4 External Clock Input Conditions VCC = 2.7 V* to 5.5 V Item External clock input low pulse width External clock input high pulse width External clock rise time External clock fall time Clock low pulse width level Clock high pulse width level Symbol t EXL t EXH t EXr t EXf t CL Min 40 40 -- -- 0.4 80 t CH 0.4 80 Max -- -- 10 10 0.6 -- 0.6 -- VCC = 5.0 V 10% Min 20 20 -- -- 0.4 80 0.4 80 Max -- -- 5 5 0.6 -- 0.6 -- Unit ns ns ns ns t cyc ns t cyc ns o 5 MHz o < 5 MHz o 5 MHz o < 5 MHz Figure 20.4 Test Conditions Figure 18.6 Note: * ZTAT, mask ROM, and ROMless versions only. tEXH tEXL EXTAL VCC x 0.5 tEXr tEXf Figure 18.6 External Clock Input Timing 614 18.4 Duty Adjustment Circuit When the oscillator frequency is 5 MHz or higher, the duty adjustment circuit adjusts the duty cycle of the clock signal from the oscillator to generate the system clock (o). 18.5 Medium-Speed Clock Divider The medium-speed clock divider divides the system clock to generate o/2, o/4, o/8, o/16, and o/32. 18.6 Bus Master Clock Selection Circuit The bus master clock selection circuit selects the system clock (o) or one of the medium-speed clocks (o/2, o/4, or o/8, o/16, and o/32) to be supplied to the bus master, according to the settings of the SCK2 to SCK0 bits in SCKCR. 615 Section 19 Power-Down Modes 19.1 Overview In addition to the normal program execution state, the H8S/2345 Series has five power-down modes in which operation of the CPU and oscillator is halted and power dissipation is reduced. Low-power operation can be achieved by individually controlling the CPU, on-chip supporting modules, and so on. The H8S/2345 Series operating modes are as follows: (1) High-speed mode (2) Medium-speed mode (3) Sleep mode (4) Module stop mode (5) Software standby mode (6) Hardware standby mode Of these, (2) to (6) are power-down modes. Sleep mode is a CPU mode, medium-speed mode is a CPU and bus master mode, and module stop mode is an on-chip supporting module mode (including bus masters other than the CPU). A combination of these modes can be set. After a reset, the H8S/2345 Series is in high-speed mode. Table 19.1 shows the conditions for transition to the various modes, the status of the CPU, on-chip supporting modules, etc., and the method of clearing each mode. 617 Table 19.1 Operating Modes Operating Mode High speed mode Transition Condition Control register Clearing Condition CPU Oscillator Functions Functions High speed Registers Functions High speed Modules Registers Functions I/O Ports High speed High speed MediumControl speed mode register Sleep mode Instruction Module stop Control mode register Software standby mode Hardware standby mode Instruction External interrupt Interrupt Medium Functions speed Halted Retained High/ Functions medium speed *1 High speed Halted Functions Retained/ reset *2 Retained/ reset *2 Reset Functions Functions High speed Retained High/ Functions medium speed Halted Retained Halted Halted Retained Pin Halted Halted Undefined Halted High impedance Notes: 1. The bus master operates on the medium-speed clock, and other on-chip supporting modules on the high-speed clock. 2. The SCI and A/D converter are reset, and other on-chip supporting modules retain their state. 19.1.1 Register Configuration Power-down modes are controlled by the SBYCR, SCKCR, and MSTPCR registers. Table 19.2 summarizes these registers. Table 19.2 Power-Down Mode Registers Name Standby control register System clock control register Module stop control register H Module stop control register L Abbreviation SBYCR SCKCR MSTPCRH MSTPCRL R/W R/W R/W R/W R/W Initial Value H'08 H'00 H'3F H'FF Address* H'FF38 H'FF3A H'FF3C H'FF3D Note: * Lower 16 bits of the address. 618 19.2 19.2.1 Bit Register Descriptions Standby Control Register (SBYCR) : 7 SSBY 0 R/W 6 STS2 0 R/W 5 STS1 0 R/W 4 STS0 0 R/W 3 OPE 1 R/W 2 -- 0 -- 1 -- 0 -- 0 -- 0 R/W Initial value : R/W : SBYCR is an 8-bit readable/writable register that performs software standby mode control. SBYCR is initialized to H'08 by a reset and in hardware standby mode. It is not initialized in software standby mode. Bit 7--Software Standby (SSBY): Specifies a transition to software standby mode. Remains set to 1 when software standby mode is released by an external interrupt, and a transition is made to normal operation. The SSBY bit should be cleared by writing 0 to it. Bit 7 SSBY 0 1 Description Transition to sleep mode after execution of SLEEP instruction Transition to software standby mode after execution of SLEEP instruction (Initial value) Bits 6 to 4--Standby Timer Select 2 to 0 (STS2 to STS0): These bits select the time the MCU waits for the clock to stabilize when software standby mode is cleared by an external interrupt. With crystal oscillation, refer to table 19.4 and make a selection according to the operating frequency so that the standby time is at least 8 ms (the oscillation stabilization time). With an external clock, any selection* can be made. Note: * The 16-state standby time cannot be used in the F-ZTAT version; a standby time of 8192 states or longer should be used. 619 Bit 6 STS2 0 Bit 5 STS1 0 Bit 4 STS0 0 1 Description Standby time = 8192 states Standby time = 16384 states Standby time = 32768 states Standby time = 65536 states Standby time = 131072 states Standby time = 262144 states Reserved Standby time = 16 states* (Initial value) 1 0 1 1 0 0 1 1 0 1 Note: * Not used on the F-ZTAT version. Bit 3--Output Port Enable (OPE): Specifies whether the output of the address bus and bus control signals (CS0 to CS3, AS, RD, HWR, LWR) is retained or set to the high-impedance state in software standby mode. Bit 3 OPE 0 1 Description In software standby mode, address bus and bus control signals are high-impedance In software standby mode, address bus and bus control signals retain output state (Initial value) Bits 2 and 1--Reserved: Read-only bits, always read as 0. Bit 0--Reserved: This bit can be read or written to, but only 0 should be written. 19.2.2 Bit System Clock Control Register (SCKCR) : 7 PSTOP 0 R/W 6 -- 0 R/W 5 -- 0 -- 4 -- 0 -- 3 -- 0 -- 2 SCK2 0 R/W 1 SCK1 0 R/W 0 SCK0 0 R/W Initial value : R/W : SCKCR is an 8-bit readable/writable register that performs o clock output control and mediumspeed mode control. SCKCR is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in software standby mode. 620 Bit 7--o Clock Output Disable (PSTOP): Controls o output. Description Bit 7 PSTOP 0 1 Normal Operating Mode o output (initial value) Fixed high Software Standby Mode Fixed high Fixed high Hardware Standby Mode High impedance High impedance Sleep Mode o output Fixed high Bits 6--Reserved: This bit can be read or written to, but only 0 should be written. Bits 5 to 3--Reserved: Read-only bits, always read as 0. Bits 2 to 0--System Clock Select (SCK2 to SCK0): These bits select the clock for the bus master. Bit 2 SCK2 0 Bit 1 SCK1 0 Bit 0 SCK0 0 1 1 0 1 1 0 0 1 1 -- Description Bus master in high-speed mode Medium-speed clock is o/2 Medium-speed clock is o/4 Medium-speed clock is o/8 Medium-speed clock is o/16 Medium-speed clock is o/32 -- (Initial value) 19.2.3 Module Stop Control Register (MSTPCR) MSTPCRH MSTPCRL 10 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 Bit : 15 0 14 0 13 1 12 1 11 1 Initial value : R/W : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W MSTPCR is a 16-bit readable/writable register that performs module stop mode control. MSTPCR is initialized to H'3FFF by a reset and in hardware standby mode. It is not initialized in software standby mode. 621 Bits 15 to 0--Module Stop (MSTP 15 to MSTP 0): These bits specify module stop mode. See table 19.3 for the method of selecting on-chip supporting modules. Bits 15 to 0 MSTP15 to MSTP0 0 1 Description Module stop mode cleared Module stop mode set 19.3 Medium-Speed Mode When the SCK2 to SCK0 bits in SCKCR are set to 1, the operating mode changes to mediumspeed mode as soon as the current bus cycle ends. In medium-speed mode, the CPU operates on the operating clock (o/2, o/4, o/8, o/16, or o/32) specified by the SCK2 to SCK0 bits. The bus masters other than the CPU (the DTC) also operate in medium-speed mode. On-chip supporting modules other than the bus masters always operate on the high-speed clock (o). In medium-speed mode, a bus access is executed in the specified number of states with respect to the bus master operating clock. For example, if o/4 is selected as the operating clock, on-chip memory is accessed in 4 states, and internal I/O registers in 8 states. Medium-speed mode is cleared by clearing all of bits SCK2 to SCK0 to 0. A transition is made to high-speed mode and medium-speed mode is cleared at the end of the current bus cycle. If a SLEEP instruction is executed when the SSBY bit in SBYCR is cleared to 0, a transition is made to sleep mode. When sleep mode is cleared by an interrupt, medium-speed mode is restored. If a SLEEP instruction is executed when the SSBY bit in SBYCR is set to 1, a transition is made to software standby mode. When software standby mode is cleared by an external interrupt, medium-speed mode is restored. When the RES pin is driven low, a transition is made to the reset state, and medium-speed mode is cleared. The same applies in the case of a reset caused by overflow of the watchdog timer. When the STBY pin is driven low, a transition is made to hardware standby mode. Figure 19.1 shows the timing for transition to and clearance of medium-speed mode. 622 Medium-speed mode o, supporting module clock Bus master clock Internal address bus SCKCR SCKCR Internal write signal Figure 19.1 Medium-Speed Mode Transition and Clearance Timing 19.4 Sleep Mode If a SLEEP instruction is executed when the SSBY bit in SBYCR is cleared to 0, the CPU enters sleep mode. In sleep mode, CPU operation stops but the contents of the CPU's internal registers are retained. Other supporting modules do not stop. Sleep mode is cleared by a reset or any interrupt, and the CPU returns to the normal program execution state via the exception handling state. Sleep mode is not cleared if interrupts are disabled, or if interrupts other than NMI are masked by the CPU. When the STBY pin is driven low, a transition is made to hardware standby mode. 19.5 19.5.1 Module Stop Mode Module Stop Mode Module stop mode can be set for individual on-chip supporting modules. When the corresponding MSTP bit in MSTPCR is set to 1, module operation stops at the end of the bus cycle and a transition is made to module stop mode. The CPU continues operating independently. Table 19.3 shows MSTP bits and the corresponding on-chip supporting modules. When the corresponding MSTP bit is cleared to 0, module stop mode is cleared and the module starts operating at the end of the bus cycle. In module stop mode, the internal states of modules other than the SCI and A/D converter are retained. After reset clearance, all modules other than DTC are in module stop mode. 623 When an on-chip supporting module is in module stop mode, read/write access to its registers is disabled. If a transition is made to sleep mode when all modules are stopped (MSTPCR = H'FFFF), or modules other than the 8-bit timers are stopped (MSTPCR = H'EFFF), operation of the bus controller and I/O ports is also halted, enabling current dissipation to be further reduced. Table 19.3 MSTP Bits and Corresponding On-Chip Supporting Modules Register MSTPCRH Bit MSTP15 MSTP14 MSTP13 MSTP12 MSTP11 MSTP10 MSTP9 MSTP8 MSTPCRL MSTP7 MSTP6 MSTP5 MSTP4 MSTP3 MSTP2 MSTP1 MSTP0 Module -- Data transfer controller (DTC) 16-bit timer pulse unit (TPU) 8-bit timer -- D/A converter A/D converter -- -- Serial communication interface (SCI) channel 1 Serial communication interface (SCI) channel 0 -- -- -- -- -- Note: Bits 15, 11, 8, 7, and 4 to 0 can be read or written to, but do not affect operation. 19.5.2 Usage Notes DTC Module Stop: Depending on the operating status of the DTC, the MSTP14 bit may not be set to 1. Setting of the DTC module stop mode should be carried out only when the respective module is not activated. For details, refer to section 7, Data Transfer Controller (DTC). On-Chip Supporting Module Interrupt: Relevant interrupt operations cannot be performed in module stop mode. Consequently, if module stop mode is entered when an interrupt has been requested, it will not be possible to clear the CPU interrupt source or the DTC activation source. Interrupts should therefore be disabled before entering module stop mode. 624 Writing to MSTPCR: MSTPCR should only be written to by the CPU. 19.6 19.6.1 Software Standby Mode Software Standby Mode If a SLEEP instruction is executed when the SSBY bit in SBYCR is set to 1, software standby mode is entered. In this mode, the CPU, on-chip supporting modules, and oscillator all stop. However, the contents of the CPU's internal registers, RAM data, and the states of on-chip supporting modules other than the SCI and A/D converter, and I/O ports, are retained. Whether the address bus and bus control signals are placed in the high-impedance state or retain the output state can be specified by the OPE bit in SBYCR. In this mode the oscillator stops, and therefore power dissipation is significantly reduced. 19.6.2 Clearing Software Standby Mode Software standby mode is cleared by an external interrupt (NMI pin, or pins IRQ0 to IRQ2), or by means of the RES pin or STBY pin. * Clearing with an interrupt When an NMI or IRQ0 to IRQ2 interrupt request signal is input, clock oscillation starts, and after the elapse of the time set in bits STS2 to STS0 in SYSCR, stable clocks are supplied to the entire H8S/2345 Series chip, software standby mode is cleared, and interrupt exception handling is started. When clearing software standby mode with an IRQ0 to IRQ2 interrupt, set the corresponding enable bit to 1 and ensure that no interrupt with a higher priority than interrupts IRQ0 to IRQ2 is generated. Software standby mode cannot be cleared if the interrupt has been masked on the CPU side or has been designated as a DTC activation source. * Clearing with the RES pin When the RES pin is driven low, clock oscillation is started. At the same time as clock oscillation starts, clocks are supplied to the entire H8S/2345 Series chip. Note that the RES pin must be held low until clock oscillation stabilizes. When the RES pin goes high, the CPU begins reset exception handling. * Clearing with the STBY pin When the STBY pin is driven low, a transition is made to hardware standby mode. 625 19.6.3 Setting Oscillation Stabilization Time after Clearing Software Standby Mode Bits STS2 to STS0 in SBYCR should be set as described below. Using a Crystal Oscillator: Set bits STS2 to STS0 so that the standby time is at least 8 ms (the oscillation stabilization time). Table 19.4 shows the standby times for different operating frequencies and settings of bits STS2 to STS0. Table 19.4 Oscillation Stabilization Time Settings STS2 STS1 STS0 Standby Time 0 0 0 1 1 0 1 1 0 0 1 1 0 1 8192 states 16384 states 32768 states 65536 states 131072 states 262144 states Reserved 16 states* 20 16 12 10 8 6 4 2 MHz MHz MHz MHz MHz MHz MHz MHz Unit 0.41 0.51 0.68 0.8 0.82 1.0 1.6 3.3 6.6 2.0 4.1 8.2 1.3 2.7 5.5 1.6 3.3 6.6 1.0 2.0 4.1 8.2 1.3 2.7 5.5 2.0 4.1 4.1 8.2 ms 8.2 16.4 10.9 16.4 32.8 10.9 13.1 16.4 21.8 32.8 65.5 13.1 16.4 21.8 26.2 32.8 43.6 65.6 131.2 -- 0.8 -- 1.0 -- 1.3 -- 1.6 -- 2.0 -- 2.7 -- 4.0 -- 8.0 -- s : Recommended time setting Note: * Not used on the F-ZTAT version. Using an External Clock: Any value can be set. Normally, use of the minimum time is recommended. Note: * The 16-state standby time cannot be used in the F-ZTAT version; a standby time of 8192 states or longer should be used. 19.6.4 Software Standby Mode Application Example Figure 19.2 shows an example in which a transition is made to software standby mode at the falling edge on the NMI pin, and software standby mode is cleared at the rising edge on the NMI pin. In this example, an NMI interrupt is accepted with the NMIEG bit in SYSCR cleared to 0 (falling edge specification), then the NMIEG bit is set to 1 (rising edge specification), the SSBY bit is set to 1, and a SLEEP instruction is executed, causing a transition to software standby mode. 626 Software standby mode is then cleared at the rising edge on the NMI pin. Oscillator o NMI NMIEG SSBY NMI exception Software standby mode handling (power-down mode) NMIEG=1 SSBY=1 SLEEP instruction Oscillation stabilization time tOSC2 NMI exception handling Figure 19.2 Software Standby Mode Application Example 19.6.5 Usage Notes I/O Port Status: In software standby mode, I/O port states are retained. If the OPE bit is set to 1, the address bus and bus control signal output is also retained. Therefore, there is no reduction in current dissipation for the output current when a high-level signal is output. Current Dissipation during Oscillation Stabilization Wait Period: Current dissipation increases during the oscillation stabilization wait period. 627 19.7 19.7.1 Hardware Standby Mode Hardware Standby Mode When the STBY pin is driven low, a transition is made to hardware standby mode from any mode. In hardware standby mode, all functions enter the reset state and stop operation, resulting in a significant reduction in power dissipation. As long as the prescribed voltage is supplied, on-chip RAM data is retained. I/O ports are set to the high-impedance state. In order to retain on-chip RAM data, the RAME bit in SYSCR should be cleared to 0 before driving the STBY pin low. Do not change the state of the mode pins (MD2 to MD0) while the H8S/2345 Series is in hardware standby mode. Hardware standby mode is cleared by means of the STBY pin and the RES pin. When the STBY pin is driven high while the RES pin is low, the reset state is set and clock oscillation is started. Ensure that the RES pin is held low until the clock oscillator stabilizes (at least 8 ms--the oscillation stabilization time--when using a crystal oscillator). When the RES pin is subsequently driven high, a transition is made to the program execution state via the reset exception handling state. 19.7.2 Hardware Standby Mode Timing Figure 19.3 shows an example of hardware standby mode timing. When the STBY pin is driven low after the RES pin has been driven low, a transition is made to hardware standby mode. Hardware standby mode is cleared by driving the STBY pin high, waiting for the oscillation stabilization time, then changing the RES pin from low to high. 628 Oscillator RES STBY Oscillation stabilization time Reset exception handling Figure 19.3 Hardware Standby Mode Timing (Example) 19.8 o Clock Output Disabling Function Output of the o clock can be controlled by means of the PSTOP bit in SCKCR, and DDR for the corresponding port. When the PSTOP bit is set to 1, the o clock stops at the end of the bus cycle, and o output goes high. o clock output is enabled when the PSTOP bit is cleared to 0. When DDR for the corresponding port is cleared to 0, o clock output is disabled and input port mode is set. Table 19.5 shows the state of the o pin in each processing state. Table 19.5 o Pin State in Each Processing State DDR PSTOP Hardware standby mode Software standby mode Sleep mode Normal operating state 0 -- High impedance High impedance High impedance High impedance Fixed high o output o output Fixed high Fixed high 1 0 1 629 Section 20 Electrical Characteristics 20.1 20.1.1 Electrical Characteristics of F-ZTAT Version Absolute Maximum Ratings Table 20.1 lists the absolute maximum ratings. Table 20.1 Absolute Maximum Ratings Item Power supply voltage Input voltage (FWE)* 1 Symbol VCC Vin Vin Vin Vref AVCC VAN Topr Value -0.3 to +7.0 -0.3 to VCC +0.3 -0.3 to VCC +0.3 -0.3 to AVCC +0.3 -0.3 to AVCC +0.3 -0.3 to +7.0 -0.3 to AVCC +0.3 Regular specifications: -20 to +75* 2 2 Unit V V V V V V V C C C Input voltage (except port 4) Input voltage (port 4) Reference voltage Analog power supply voltage Analog input voltage Operating temperature Wide-range specifications: -40 to +85* Storage temperature Tstg -55 to +125 Caution: Permanent damage to the chip may result if absolute maximum rating are exceeded. Notes: 1. Never apply 12 V to any of the pins. Doing so could permanently damage the LSI. 2. The operating temperature range for flash memory programming/erase operations is Ta = 0 to +75C (regular specifications), T a = 0 to +85C (wide-range specifications). 631 20.1.2 DC Characteristics Table 20.2 lists the DC characteristics. Table 20.3 lists the permissible output currents. Table 20.2 DC Characteristics Conditions: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V*1, Ta = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Item Schmitt trigger input voltage Input high voltage Symbol Port 2, VT IRQ0 to IRQ7 V + T VT - VT RES, STBY, NMI, MD2 to MD0, FWE EXTAL Port 1, 3, A to G Port4 Input low voltage RES, STBY, MD2 to MD0, FWE NMI, EXTAL, Port 1, 3, 4, A to G Output high voltage Output low voltage Input leakage current All output pins VOH All output pins VOL Port 1, A to C RES STBY, NMI, MD2 to MD0, FWE Port 4 Note: | Iin | VIL VIH + - - Min 1.0 -- 0.4 VCC - 0.7 Typ -- -- -- -- Max -- -- VCC + 0.3 Unit V V V Test Conditions VCC x 0.7 V VCC x 0.7 -- 2.0 2.0 -0.3 -- -- -- VCC + 0.3 VCC + 0.3 V V AVCC + 0.3 V 0.5 V -0.3 -- 0.8 V VCC - 0.5 3.5 -- -- -- -- -- -- -- -- -- -- -- -- 0.4 1.0 10.0 1.0 V V V V A A I OH = -200 A I OH = -1 mA I OL = 1.6 mA I OL = 10 mA Vin = 0.5 to VCC - 0.5 V -- -- 1.0 A Vin = 0.5 to AVCC - 0.5 V 1. If the A/D and D/A converters are not used, do not leave the AVCC, AVSS, and V ref pins open. Connect AVCC and Vref to V CC, and connect AVSS to V SS . 632 Table 20.2 DC Characteristics (cont) Conditions: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V*1, Ta = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Item Three-state leakage current (off state) Port 1 to 3, A to G Symbol ITSI Min -- Typ -- Max 1.0 Unit A Test Conditions Vin = 0.5 to VCC - 0.5 V MOS input Port A to E pull-up current Input capacitance RES NMI All input pins except RES and NMI Current dissipation*2 Normal operation Sleep mode Standby mode*3 During flash memory programming/ erase Analog power During A/D supply current and D/A conversion Idle Reference current During A/D and D/A conversion Idle RAM standby voltage -I P Cin 50 -- -- -- -- -- -- -- 300 80 50 15 A pF pF pF Vin = 0 V Vin = 0 V f = 1 MHz Ta = 25C I CC*4 -- -- -- -- -- 60 89 (5.0 V) 40 73 (5.0 V) 0.01 -- 5.0 20 mA mA A f = 20 MHz f = 20 MHz Ta 50C 50C < Ta 0C T a 75C f = 20 MHz 70 89 (5.0 V) mA AlCC -- 0.8 2.0 (5.0 V) 0.01 5.0 mA -- AlCC -- A mA Vref = 5.0 V 1.9 3.0 (5.0 V) 0.01 -- 5.0 -- -- VRAM 2.0 A V Notes: 1. If the A/D and D/A converters are not used, do not leave the AVCC, AVSS, and V ref pins open. Connect AVCC and Vref to V CC, and connect AVSS to V SS . 2. Current dissipation values are for V IH min = VCC -0.5 V and VIL max = 0.5V with all output pins unloaded and the on-chip pull-up transistors in the off state. 3. The values are for VRAM VCC < 4.5V, VIH min = VCC x 0.9, and V IL max = 0.3 V. 633 4. I CC depends on VCC and f as follows: I CC max = 1.0 (mA) + 0.80 (mA/(MHz x V)) x V CC x f [normal mode] I CC max = 1.0 (mA) + 0.65 (mA/(MHz x V)) x V CC x f [sleep mode] 634 Table 20.2 DC Characteristics (cont) -- In planning stage -- Conditions: VCC = AVCC = 3.0 to 5.5 V, Vref = 3.0 V to AVCC, VSS = AVSS = 0 V*1, Ta = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Item Schmitt trigger input voltage Input high voltage Symbol Port 2, VT IRQ0 to IRQ7 V + T VT - VT RES, STBY, NMI, MD2 to MD0, FWE EXTAL Port 1, 3, A to G Port 4 Input low voltage RES, STBY, MD2 to MD0, FWE NMI, EXTAL, Port 1, 3 , 4, A to G Output high voltage Output low voltage Input leakage current All output pins VOH VCC - 0.5 VCC - 1.0 All output pins VOL Port 1, A to C RES STBY, NMI, MD2 to MD0, FWE Port 4 Note: | Iin | -- -- -- -- -- -- -- -- -- -- VIL VIH + - - Min Typ Max -- Unit V Test Conditions VCC x 0.2 -- -- -- VCC x 0.07 -- VCC x 0.9 -- VCC x 0.7 V -- VCC +0.3 V V VCC x 0.7 -- VCC x 0.7 -- VCC x 0.7 -- -0.3 -- VCC +0.3 VCC +0.3 V V AVCC +0.3 V VCC x 0.1 V -0.3 -- VCC x 0.2 V 0.8 -- -- 0.4 1.0 10.0 1.0 V V V V A A VCC < 4.0 V VCC = 4.0 to 5.5 V I OH = -200 A I OH = -1 mA I OL = 1.6 mA I OL = 5 mA Vin = 0.5 to VCC - 0.5V -- -- 1.0 A Vin = 0.5 to AVCC - 0.5V 1. If the A/D and D/A converters are not used, do not leave the AVCC, AVSS, and V ref pins open. Connect AVCC and Vref to V CC, and connect AVSS to V SS . 635 Table 20.2 DC Characteristics (cont) -- In planning stage -- Conditions: VCC = AVCC = 3.0 to 3.6 V, Vref = 3.0 V to AVCC, VSS = AVSS = 0 V*1, Ta = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Item Three-state leakage current (off state) Port 1 to 3, A to G Symbol ITSI Min -- Typ -- Max 1.0 Unit A Test Conditions Vin = 0.5 to VCC -0.5 V MOS input Port A to E pull-up current Input capacitance RES NMI All input pins except RES and NMI Current dissipation*2 Normal operation Sleep mode Standby mode*3 During flash memory programming/ erase Analog power During A/D supply current and D/A conversion Idle Reference current During A/D and D/A conversion Idle RAM standby voltage -I P Cin 10 -- -- -- -- -- -- -- 300 80 50 15 A pF pF pF VCC = 2.7 V to 5.5 V, Vin = 0 V Vin = 0 V f = 1 MHz Ta = 25C I CC*4 -- -- -- -- -- TBD TBD (3.3 V) TBD TBD (3.3 V) 0.01 -- 5.0 20 mA mA A f = 10 MHz f = 10 MHz Ta 50C 50C < Ta 0C T a 75C f = 10 MHz TBD TBD (3.3 V) mA AlCC -- TBD TBD (3.3 V) 0.01 5.0 mA -- AlCC -- A mA Vref = 3.3 V TBD TBD (3.3 V) 0.01 -- 5.0 -- -- VRAM 2.0 A V Notes: 1. If the A/D and D/A converters are not used, do not leave the AVCC, AVSS, and Vref pins open. Connect AVCC and Vref to V CC, and connect AVSS to V SS . 2. Current dissipation values are for V IH min = VCC -0.5 V and VIL max = 0.5V with all output pins unloaded and the on-chip pull-up transistors in the off state. 3. The values are for VRAM VCC < 2.7 V, VIH min = VCC x 0.9, and V IL max = 0.3V. 636 4. I CC depends on VCC and f as follows: I CC max = TBD (mA) + TBD (mA/(MHz x V)) x V CC x f [normal mode] I CC max = TBD (mA) + TBD (mA/(MHz x V)) x V CC x f [sleep mode] 637 Table 20.3 Permissible Output Currents Conditions: VCC = AVCC = 5.0 V 10%, Vref = 4.5 to AVCC, VSS = AVSS = 0 V, Ta = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Item Permissible output low current (per pin) Permissible output low current (total) Port 1, A to C Other output pins Total of 28 pins including port 1 and A to C Total of all output pins, including the above Permissible output high current (per pin) Permissible output high current (total) All output pins Total of all output pins -I OH -IOH IOL Symbol I OL Min -- -- -- Typ -- -- -- Max 10 2.0 80 Unit mA mA mA -- -- 120 mA -- -- -- -- 2.0 40 mA mA Notes: 1. To protect chip reliability, do not exceed the output current values in table 20.3. 2. When driving a darlington pair or LED directly, always insert a current-limiting resistor in the output line, as show in figures 20.1 and 20.2. H8S/2345 Series 2k Port Darlington Pair Figure 20.1 Darlington Pair Drive Circuit (Example) 638 H8S/2345 Series 600 Port 1, A to C LED Figure 20.2 LED Drive Circuit (Example) 20.1.3 AC Characteristics Figure 20.3 show, the test conditions for the AC characteristics. 5V RL LSI output pin C = 90 pF: Port 1, A to F C = 30 pF: Port 2, 3, G RL = 2.4 k RH = 12 k I/O timing test levels * Low level: 0.8 V * High level: 2.0 V C RH Figure 20.3 Output Load Circuit 639 Clock Timing: Table 20.4 lists the clock timing Table 20.4 Clock Timing Condition A: --In planning stage-- VCC = AVCC = 3.0 to 5.5 V, Vref = 3.0 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o = 2 to 20 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition A Item Clock cycle time Clock high pulse width Clock low pulse width Clock rise time Clock fall time Clock oscillator setting time at reset (crystal) Clock oscillator setting time in software standby (crystal) External clock output stabilization delay time Symbol t cyc t CH t CL t Cr t Cf t OSC1 t OSC2 t DEXT Min 100 35 35 -- -- 20 8 500 Max 500 -- -- 15 15 -- -- -- Condition B Min 50 20 20 -- -- 10 8 500 Max 500 -- -- 5 5 -- -- -- Unit ns ns ns ns ns ms ms s Figure 20.8 Figure 19.2 Figure 20.8 Figure 20.7 Test Conditions 640 Control Signal Timing: Table 20.5 lists the control signal timing. Table 20.5 Control Signal Timing Condition A: --In planning stage-- VCC = AVCC = 3.0 to 5.5 V, Vref = 3.0 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o = 2 to 20 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition A Item RES setup time RES pulse width NMI reset setup time NMI reset hold time Symbol t RESS t RESW t NMIRS t NMIRH Min 200 20 250 200 200 250 10 200 250 10 200 Max -- -- -- -- -- -- -- -- -- -- -- Condition B Min 200 20 200 200 200 150 10 200 150 10 200 Max -- -- -- -- -- -- -- -- -- -- -- Unit ns t cyc ns ns ns ns ns ns ns ns ns Figure 20.10 Test Conditions Figure 20.9 Mode programming setup time t MDS NMI setup time NMI hold time NMI pulse width (exiting software standby mode) IRQ setup time IRQ hold time IRQ pulse width (exiting software standby mode) t NMIS t NMIH t NMIW t IRQS t IRQH t IRQW 641 Bus Timing: Table 20.6 lists the bus timing. Table 20.6 Bus Timing Condition A: --In planning stage-- VCC = AVCC = 3.0 to 5.5 V, Vref = 3.0 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o= 2 to 20 MHz, Ta = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition A Item Address delay time Address setup time Address hold time CS delay time 1 AS delay time RD delay time 1 RD delay time 2 CAS delay time Read data setup time Read data hold time Read data access time 1 Read data access time 2 Read data access time 3 Read data access time 4 Read data access time 5 Symbol t AD t AS t AH t CSD1 t ASD t RSD1 t RSD2 t CASD t RDS t RDH t ACC1 t ACC2 t ACC3 t ACC4 t ACC5 Min -- Max 40 Condition B Min -- Max 20 Unit ns ns ns ns ns ns ns ns ns ns Test Conditions Figure 20.11 to Figure 20.15 0.5 x -- t cyc - 30 0.5 x -- t cyc - 20 -- -- -- -- -- 30 0 -- -- -- -- -- 40 40 40 40 40 -- -- 1.0 x t cyc - 50 1.5 x t cyc - 50 2.0 x t cyc - 50 2.5 x t cyc - 50 3.0 x t cyc - 50 0.5 x -- t cyc - 15 0.5 x -- t cyc - 10 -- -- -- -- -- 15 0 -- -- -- -- -- 20 20 20 20 20 -- -- 1.0 x ns t cyc - 25 1.5 x ns t cyc - 25 2.0 x ns t cyc - 25 2.5 x ns t cyc - 25 3.0 x ns t cyc - 25 642 Table 20.6 Bus Timing (cont) Condition A: --In planning stage-- VCC = AVCC = 3.0 to 5.5 V, Vref = 3.0 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o= 2 to 20 MHz, Ta = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition A Item WR delay time 1 WR delay time 2 WR pulse width 1 WR pulse width 2 Write data delay time Write data setup time Write data hold time WAIT setup time WAIT hold time BREQ setup time BACK delay time Bus-floating time Symbol t WRD1 t WRD2 t WSW1 t WSW2 t WDD t WDS t WDH t WTS t WTH t BRQS t BACD t BZD Min -- -- Max 40 40 Condition B Min -- -- Max 20 20 Unit ns ns ns ns ns ns ns ns ns ns ns ns Figure 20.16 Figure 20.13 Test Conditions Figure 20.11 to Figure 20.15 1.0 x -- t cyc - 40 1.5 x -- t cyc - 40 -- 60 0.5 x -- t cyc - 40 0.5 x -- t cyc - 20 60 10 60 -- -- -- -- -- 30 100 1.0 x -- t cyc - 20 1.5 x -- t cyc - 20 -- 30 0.5 x -- t cyc - 20 0.5 x -- t cyc - 10 30 5 30 -- -- -- -- -- 15 50 643 Timing of On-Chip Supporting Modules: Table 20.7 lists the timing of on-chip supporting modules. Table 20.7 Timing of On-Chip Supporting Modules Condition A: --In planning stage-- VCC = AVCC = 3.0 V to 5.5 V, Vref = 3.0 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o = 2 to 20 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition A Item I/O port Output data delay time Input data setup time Input data hold time TPU Timer output delay time Timer input setup time Timer clock input setup time Timer clock pulse width Single edge Both edges Symbol t PWD t PRS t PRH t TOCD t TICS t TCKS t TCKWH t TCKWL t TMOD t TMRS t TMCS t TMCWH t TMCWL Min -- 50 50 -- 50 50 1.5 2.5 -- 50 50 1.5 2.5 Max 100 -- -- 100 -- -- -- -- 100 -- -- -- -- Condition B Min -- 30 30 -- 30 30 1.5 2.5 -- 30 30 1.5 2.5 Max 50 -- -- 50 -- -- -- -- 50 -- -- -- -- ns ns ns t cyc Figure 20.20 Figure 20.22 Figure 20.21 ns t cyc Figure 20.19 ns Figure 20.18 Unit ns Test Conditions Figure 20.17 8-bit timer Timer output delay time Timer reset input setup time Timer clock input setup time Timer clock pulse width Single edge Both edges 644 Table 20.7 Timing of On-Chip Supporting Modules (cont) Condition A: --In planning stage-- VCC = AVCC = 3.0 V to 5.5 V, Vref = 3.0 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o = 2 to 20 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition A Item SCI Input clock cycle Symbol Asynchro- t Scyc nous Synchronous t SCKW t SCKr t SCKf t TXD Min 4 6 0.4 -- -- -- 100 100 50 Max -- -- 0.6 1.5 1.5 100 -- -- -- Condition B Min 4 6 0.4 -- -- -- 50 50 30 Max -- -- 0.6 1.5 1.5 50 -- -- -- ns ns ns ns Figure 20.26 Figure 20.25 t Scyc t cyc Unit t cyc Test Conditions Figure 20.24 Input clock pulse width Input clock rise time Input clock fall time Transmit data delay time Receive data setup t RXS time (synchronous) Receive data hold t RXH time (synchronous) A/D Trigger input setup t TRGS converter time 645 20.1.4 A/D Conversion Characteristics Table 20.8 lists the A/D conversion characteristics. Table 20.8 A/D Conversion Characteristics Condition A: --In planning stage-- VCC = AVCC = 3.0 V to 5.5 V, Vref = 3.0 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o = 2 to 20 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition A Item Resolution Conversion time Analog input capacitance Permissible signal-source impedance Nonlinearity error Offset error Full-scale error Quantization Absolute accuracy Notes: 1. o 12 MHz 2. o > 12 MHz Min 10 -- -- -- Typ 10 -- -- -- Max 10 13.4 20 5 7.5 7.5 7.5 0.5 8.0 Min 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Condition B Typ 10 -- -- -- -- -- -- -- -- -- Max 10 6.7 20 10* 5*2 3.5 3.5 3.5 0.5 4.0 LSB LSB LSB LSB LSB 1 Unit bits s pF k 646 20.1.5 D/A Conversion Characteristics Table 20.9 lists the D/A conversion characteristics. Table 20.9 D/A Conversion Characteristics Condition A: --In planning stage-- VCC = AVCC = 3.0 V to 5.5 V, Vref = 3.0 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o = 2 to 20 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition A Item Resolution Conversion time Absolute accuracy Min 8 -- -- -- Typ 8 -- 2.0 -- Max 8 10 3.0 2.0 Min 8 -- -- -- Condition B Typ 8 -- 1.0 -- Max 8 10 1.5 1.0 Unit bit s LSB LSB 20-pF capacitive load 2-M resistive load 4-M resistive load Test Conditions 647 20.1.6 Flash Memory Characteristics Table 20.10 lists the flash memory characteristics. Table 20.10 Flash Memory Characteristics (1) Conditions: VCC = AVCC = 4.5 to 5.5 V, VSS = AVSS = 0 V, Ta = 0 to +75C (flash memory programming/erase operating temperature range; regular specifications) Ta = 0 to +85C (flash memory programming/erase operating temperature range; wide-range specifications) Item Programming time*1, *2, *4 Erase time*1, *3, *5 Number of programmings Programming Wait time after setting SWE bit*1 Wait time after setting PSU bit * Wait time after setting P bit * * Wait time after clearing P bit*1 Wait time after clearing PSU bit*1 Wait time after setting PV bit* 1 1 1, 1 Symbol tP tE NWEC x y z N x y z 1 Min -- -- -- 10 50 150 10 10 4 2 4 -- 10 200 5 10 10 20 2 5 120 Typ 10 100 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Max 200 1200 100 -- -- 200 -- -- -- -- -- Unit ms/ 32 bytes ms/block Times s s s s s s s s Test Conditions 4 Wait time after H'FF dummy write* Wait time after clearing PV bit*1 Max. number of programmings*1, *4 Erase Wait time after setting SWE bit* Wait time after setting ESU bit * 1 1000*5 Times -- -- 10 -- -- -- -- -- 240 s s s s s s s s Times z = 200 s 1 Wait time after setting E bit *1, *6 Wait time after clearing E bit*1 Wait time after clearing ESU bit* Wait time after setting EV bit* 1 N Wait time after H'FF dummy write*1 Wait time after clearing EV bit*1 Max. number of erases* * 1, 5 Notes: 1. Time settings should be made in accordance with the programming/erase algorithm. 2. Programming time per 32 bytes. (Indicates the total time the P bit in the flash memory control register (FLMCR1) is set. The program verification time is not included.) 3. Time to erase one block. (Indicates the total time the E bit in FLMCR1 is set. The erase verification time is not included.) 4. Write time maximum value (tP (max.) = wait time after P bit setting (z) x maximum number of programmings (N)). 648 5. Number of times when the wait time after P bit setting (z) = 200 s. The maximum number of writes (N) should be set according to the actual set value of z so as not to exceed the maximum programming time (t P (max)). 6. For the maximum erase time (tE (max)), the following relationship applies between the wait time after E bit setting (z) and the maximum number of erases (N): t E (max) = Wait time after E bit setting (z) x maximum number of erases (N) The values of z and N should be set so as to satisfy the above formula. Examples: When z = 5 [ms], N = 240 times When z = 10 [ms], N = 120 times Table 20.10 Flash Memory Characteristics (2) --In planning stage-- Conditions: VCC = AVCC = 3.0 to 3.6 V, VSS = AVSS = 0 V, Ta = 0 to +75C (flash memory programming/erase operating temperature range) Item Programming time*1, *2, *4 Erase time*1, *3, *5 Number of programmings Programming Wait time after setting SWE bit*1 Wait time after setting PSU bit *1 Wait time after setting P bit * * Wait time after clearing P bit* 1 1, 4 Symbol tP tE NWEC x y z 1 Min -- -- -- TBD TBD -- TBD TBD TBD TBD TBD -- TBD TBD -- TBD TBD TBD TBD TBD -- Typ TBD TBD -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Max TBD TBD TBD -- -- TBD -- -- -- -- -- TBD -- -- TBD -- -- Unit ms/ 32 bytes ms/block Times s s s s s s s s Times s s s s s s s s Times Test Conditions Wait time after clearing PSU bit*1 Wait time after setting PV bit*1 Wait time after H'FF dummy write* Wait time after clearing PV bit* 1 N x y z N Max. number of programmings*1, *4 Erase Wait time after setting SWE bit*1 Wait time after setting ESU bit * Wait time after setting E bit * * Wait time after clearing E bit*1 Wait time after clearing ESU bit*1 Wait time after setting EV bit* 1 1 1, 1 5 Wait time after H'FF dummy write* Wait time after clearing EV bit*1 Max. number of erases*1, *5 -- -- TBD Notes: 1. Time settings should be made in accordance with the programming/erase algorithm. 2. Programming time per 32 bytes. (Indicates the total time the P bit in the flash memory control register (FLMCR1) is set. The program verification time is not included.) 3. Time to erase one block. (Indicates the total time the E bit in FLMCR1 is set. The erase 649 verification time is not included.) 4. Write time maximum value (tP (max.) = wait time after P bit setting (z) x maximum number of programmings (N)). 5. Erase time maximum value (tE (max.) = wait time after E bit setting (z) x maximum number of erases (N)). 20.2 Electrical Characteristics of ZTAT, Mask ROM, and ROMless Versions Absolute Maximum Ratings 20.2.1 Table 20.11 lists the absolute maximum ratings. Table 20.11 Absolute Maximum Ratings Item Power supply voltage Programming voltage* Input voltage (except port 4) Input voltage (port 4) Reference voltage Analog power supply voltage Analog input voltage Operating temperature Symbol VCC VPP Vin Vin Vref AVCC VAN Topr Value -0.3 to +7.0 -0.3 to +13.5 -0.3 to VCC +0.3 -0.3 to AVCC +0.3 -0.3 to AVCC +0.3 -0.3 to +7.0 -0.3 to AVCC +0.3 Regular specifications: -20 to +75 Wide-range specifications: -40 to +85 Storage temperature Tstg -55 to +125 Unit V V V V V V V C C C Caution: Permanent damage to the chip may result if absolute maximum rating are exceeded. Note: * ZTAT version only. 650 20.2.2 DC Characteristics Table 20.12 lists the DC characteristics. Table 20.13 lists the permissible output currents. Table 20.12 DC Characteristics Conditions: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V*1, Ta = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Item Schmitt trigger input voltage Input high voltage Symbol Port 2, VT IRQ0 to IRQ7 V + T VT - VT RES, STBY, NMI, MD2 to MD0 EXTAL Port 1, 3, A to G Port4 Input low voltage RES, STBY, MD2 to MD0 NMI, EXTAL, Port 1, 3, 4, A to G Output high voltage Output low voltage Input leakage current All output pins VOH All output pins VOL Port 1, A to C RES STBY, NMI, MD2 to MD0 Port 4 Note: | Iin | VIL VIH + - - Min 1.0 -- 0.4 VCC - 0.7 Typ -- -- -- -- Max -- -- VCC + 0.3 Unit V V V Test Conditions VCC x 0.7 V VCC x 0.7 -- 2.0 2.0 -0.3 -0.3 -- -- -- -- VCC + 0.3 VCC + 0.3 V V AVCC + 0.3 V 0.5 0.8 V V VCC - 0.5 3.5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0.4 1.0 10.0 1.0 1.0 V V V V A A A I OH = -200 A I OH = -1 mA I OL = 1.6 mA I OL = 10 mA Vin = 0.5 to VCC - 0.5 V Vin = 0.5 to AVCC - 0.5 V 1. If the A/D and D/A converters are not used, do not leave the AVCC, AVSS, and V ref pins open. Connect AVCC and Vref to V CC, and connect AVSS to V SS . 651 Table 20.12 DC Characteristics (cont) Conditions: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V*1, Ta = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Item Three-state leakage current (off state) Port 1 to 3, A to G Symbol ITSI Min -- Typ -- Max 1.0 Unit A Test Conditions Vin = 0.5 to VCC - 0.5 V MOS input Port A to E pull-up current Input capacitance RES NMI All input pins except RES and NMI Current dissipation*2 Normal operation Sleep mode Standby mode*3 Analog power During A/D supply current and D/A conversion Idle Reference current During A/D and D/A conversion Idle RAM standby voltage -I P Cin 50 -- -- -- -- -- -- -- 300 80 50 15 A pF pF pF Vin = 0 V Vin = 0 V f = 1 MHz Ta = 25C I CC*4 -- -- -- -- 60 89 (5.0 V) 40 73 (5.0 V) 0.01 -- 5.0 20 mA mA A f = 20 MHz f = 20 MHz Ta 50C 50C < Ta AlCC -- 0.8 2.0 (5.0 V) 0.01 5.0 mA -- AlCC -- A mA Vref = 5.0 V 1.9 3.0 (5.0 V) 0.01 -- 5.0 -- -- VRAM 2.0 A V Notes: 1. If the A/D and D/A converters are not used, do not leave the AVCC, AVSS, and V ref pins open. Connect AVCC and Vref to V CC, and connect AVSS to V SS . 2. Current dissipation values are for V IH min = VCC -0.5 V and VIL max = 0.5V with all output pins unloaded and the on-chip pull-up transistors in the off state. 3. The values are for VRAM VCC < 4.5V, VIH min = VCC x 0.9, and V IL max = 0.3 V. 4. I CC depends on VCC and f as follows: I CC max = 1.0 (mA) + 0.80 (mA/(MHz x V)) x V CC x f [normal mode] I CC max = 1.0 (mA) + 0.65 (mA/(MHz x V)) x V CC x f [sleep mode] 652 Table 20.12 DC Characteristics (cont) Conditions: VCC = AVCC = 2.7 to 5.5 V, Vref = 2.7 V to AVCC, VSS = AVSS = 0 V*1, Ta = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Item Schmitt trigger input voltage Input high voltage Symbol Port 2, VT IRQ0 to IRQ7 V + T VT - VT RES, STBY, NMI, MD2 to MD0 EXTAL Port 1, 3, A to G Port 4 Input low voltage RES, STBY, MD2 to MD0 NMI, EXTAL, Port 1, 3 , 4, A to G VIL VIH + - - Min Typ Max -- Unit V Test Conditions VCC x 0.2 -- -- -- VCC x 0.07 -- VCC x 0.9 -- VCC x 0.7 V -- VCC +0.3 V V VCC x 0.7 -- VCC x 0.7 -- VCC x 0.7 -- -0.3 -0.3 -- -- VCC +0.3 VCC +0.3 V V AVCC +0.3 V VCC x 0.1 V VCC x 0.2 V VCC < 4.0 V 0.8 Output high voltage Output low voltage All output pins VOH VCC - 0.5 VCC - 1.0 All output pins VOL Port 1, A to C -- -- -- -- -- -- -- -- 0.4 1.0 V V V V VCC = 4.0 to 5.5 V I OH = -200 A I OH = -1 mA I OL = 1.6 mA VCC 4 V I OL = 5 mA 4.0 < VCC 5.5 V I OL = 10 mA Vin = 0.5 to VCC - 0.5V Vin = 0.5 to AVCC - 0.5V Input leakage current RES STBY, NMI, MD2 to MD0 Port 4 | Iin | -- -- -- -- -- -- 10.0 1.0 1.0 A A A Note: 1. If the A/D and D/A converters are not used, do not leave the AVCC, AVSS, and V ref pins open. Connect AVCC and Vref to V CC, and connect AVSS to V SS . 653 Table 20.12 DC Characteristics (cont) Conditions: VCC = AVCC = 2.7 to 5.5 V, Vref = 2.7 V to AVCC, VSS = AVSS = 0 V*1, Ta = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Item Three-state leakage current (off state) Port 1 to 3, A to G Symbol ITSI Min -- Typ -- Max 1.0 Unit A Test Conditions Vin = 0.5 to VCC -0.5 V MOS input Port A to E pull-up current Input capacitance RES NMI All input pins except RES and NMI Current dissipation*2 Normal operation Sleep mode Standby mode*3 Analog power During A/D supply current and D/A conversion Idle Reference current During A/D and D/A conversion Idle RAM standby voltage -I P Cin 10 -- -- -- -- -- -- -- 300 80 50 15 A pF pF pF VCC = 2.7 V to 5.5 V, Vin = 0 V Vin = 0 V f = 1 MHz Ta = 25C I CC*4 -- -- -- -- 18 45 (3.0 V) 11 37 (3.0 V) 0.01 -- 5.0 20 mA mA A f = 10 MHz f = 10 MHz Ta 50C 50C < Ta AlCC -- 0.2 2.0 (3.0 V) 0.01 5.0 mA -- AlCC -- A mA Vref = 3.0 V 1.2 3.0 (3.0 V) 0.01 -- 5.0 -- -- VRAM 2.0 A V Notes: 1. If the A/D and D/A converters are not used, do not leave the AVCC, AVSS, and Vref pins open. Connect AVCC and Vref to V CC, and connect AVSS to V SS . 2. Current dissipation values are for V IH min = VCC -0.5 V and VIL max = 0.5V with all output pins unloaded and the on-chip pull-up transistors in the off state. 3. The values are for VRAM VCC < 2.7 V, VIH min = VCC x 0.9, and V IL max = 0.3V. 4. I CC depends on VCC and f as follows: I CC max = 1.0 (mA) + 0.80 (mA/(MHz x V)) x V CC x f [normal mode] I CC max = 1.0 (mA) + 0.65 (mA/(MHz x V)) x V CC x f [sleep mode] 654 Table 20.13 Permissible Output Currents Conditions: VCC = AVCC = 2.7 to 5.5 V, Vref = 2.7 to AVCC, VSS = AVSS = 0 V, Ta = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Item Permissible output low current (per pin) Permissible output low current (total) Port 1, A to C Other output pins Total of 28 pins including port 1 and A to C Total of all output pins, including the above Permissible output high current (per pin) Permissible output high current (total) All output pins Total of all output pins -I OH -IOH IOL Symbol I OL Min -- -- -- Typ -- -- -- Max 10 2.0 80 Unit mA mA mA -- -- 120 mA -- -- -- -- 2.0 40 mA mA Notes: 1. To protect chip reliability, do not exceed the output current values in table 20.13. 2. When driving a darlington pair or LED directly, always insert a current-limiting resistor in the output line, as show in figures 20.4 and 20.5. H8S/2345 Series 2k Port Darlington Pair Figure 20.4 Darlington Pair Drive Circuit (Example) 655 H8S/2345 Series 600 Port 1, A to C LED Figure 20.5 LED Drive Circuit (Example) 20.2.3 AC Characteristics Figure 20.6 show, the test conditions for the AC characteristics. 5V RL LSI output pin C = 90 pF: Port 1, A to F C = 30 pF: Port 2, 3, G RL = 2.4 k RH = 12 k I/O timing test levels * Low level: 0.8 V * High level: 2.0 V C RH Figure 20.6 Output Load Circuit 656 Clock Timing: Table 20.14 lists the clock timing Table 20.14 Clock Timing Condition A: VCC = AVCC = 2.7 to 5.5 V, Vref = 2.7 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o = 2 to 20 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition A Item Clock cycle time Clock high pulse width Clock low pulse width Clock rise time Clock fall time Clock oscillator setting time at reset (crystal) Clock oscillator setting time in software standby (crystal) External clock output stabilization delay time Symbol t cyc t CH t CL t Cr t Cf t OSC1 t OSC2 t DEXT Min 100 35 35 -- -- 20 8 500 Max 500 -- -- 15 15 -- -- -- Condition B Min 50 20 20 -- -- 10 8 500 Max 500 -- -- 5 5 -- -- -- Unit ns ns ns ns ns ms ms s Figure 20.8 Figure 19.2 Figure 20.8 Test Conditions Figure 20.7 657 Control Signal Timing: Table 20.15 lists the control signal timing. Table 20.15 Control Signal Timing Condition A: VCC = AVCC = 2.7 to 5.5 V, Vref = 2.7 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o = 2 to 20 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition A Item RES setup time RES pulse width NMI reset setup time NMI reset hold time NMI setup time NMI hold time NMI pulse width (exiting software standby mode) IRQ setup time IRQ hold time IRQ pulse width (exiting software standby mode) Symbol t RESS t RESW t NMIRS t NMIRH t NMIS t NMIH t NMIW t IRQS t IRQH t IRQW Min 200 20 250 200 250 10 200 250 10 200 Max -- -- -- -- -- -- -- -- -- -- Condition B Min 200 20 200 200 150 10 200 150 10 200 Max -- -- -- -- -- -- -- -- -- -- Unit ns t cyc ns ns ns ns ns ns ns ns Figure 20.10 Test Conditions Figure 20.9 658 Bus Timing: Table 20.16 lists the bus timing. Table 20.16 Bus Timing Condition A: VCC = AVCC = 2.7 to 5.5 V, Vref = 2.7 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o= 2 to 20 MHz, Ta = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition A Item Address delay time Address setup time Address hold time CS delay time 1 AS delay time RD delay time 1 RD delay time 2 CAS delay time Read data setup time Read data hold time Read data access time 1 Read data access time 2 Read data access time 3 Read data access time 4 Read data access time 5 Symbol t AD t AS t AH t CSD1 t ASD t RSD1 t RSD2 t CASD t RDS t RDH t ACC1 t ACC2 t ACC3 t ACC4 t ACC5 Min -- Max 40 Condition B Min -- Max 20 Unit ns ns ns ns ns ns ns ns ns ns Test Conditions Figure 20.11 to Figure 20.15 0.5 x -- t cyc - 30 0.5 x -- t cyc - 20 -- -- -- -- -- 30 0 -- -- -- -- -- 40 40 40 40 40 -- -- 1.0 x t cyc - 50 1.5 x t cyc - 50 2.0 x t cyc - 50 2.5 x t cyc - 50 3.0 x t cyc - 50 0.5 x -- t cyc - 15 0.5 x -- t cyc - 10 -- -- -- -- -- 15 0 -- -- -- -- -- 20 20 20 20 20 -- -- 1.0 x ns t cyc - 25 1.5 x ns t cyc - 25 2.0 x ns t cyc - 25 2.5 x ns t cyc - 25 3.0 x ns t cyc - 25 659 Table 20.16 Bus Timing (cont) Condition A: VCC = AVCC = 2.7 to 5.5 V, Vref = 2.7 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o= 2 to 20 MHz, Ta = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition A Item WR delay time 1 WR delay time 2 WR pulse width 1 WR pulse width 2 Write data delay time Write data setup time Write data hold time WAIT setup time WAIT hold time BREQ setup time BACK delay time Bus-floating time Symbol t WRD1 t WRD2 t WSW1 t WSW2 t WDD t WDS t WDH t WTS t WTH t BRQS t BACD t BZD Min -- -- Max 40 40 Condition B Min -- -- Max 20 20 Unit ns ns ns ns ns ns ns ns ns ns ns ns Figure 20.16 Figure 20.13 Test Conditions Figure 20.11 to Figure 20.15 1.0 x -- t cyc - 40 1.5 x -- t cyc - 40 -- 60 0.5 x -- t cyc - 40 0.5 x -- t cyc - 20 60 10 60 -- -- -- -- -- 30 100 1.0 x -- t cyc - 20 1.5 x -- t cyc - 20 -- 30 0.5 x -- t cyc - 20 0.5 x -- t cyc - 10 30 5 30 -- -- -- -- -- 15 50 660 Timing of On-Chip Supporting Modules: Table 20.17 lists the timing of on-chip supporting modules. Table 20.17 Timing of On-Chip Supporting Modules Condition A: VCC = AVCC = 2.7 V to 5.5 V, Vref = 2.7 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o = 2 to 20 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition A Item I/O port Output data delay time Input data setup time Input data hold time TPU Timer output delay time Timer input setup time Timer clock input setup time Timer clock pulse width Single edge Both edges Symbol t PWD t PRS t PRH t TOCD t TICS t TCKS t TCKWH t TCKWL t TMOD t TMRS t TMCS t TMCWH t TMCWL Min -- 50 50 -- 50 50 1.5 2.5 -- 50 50 1.5 2.5 Max 100 -- -- 100 -- -- -- -- 100 -- -- -- -- Condition B Min -- 30 30 -- 30 30 1.5 2.5 -- 30 30 1.5 2.5 Max 50 -- -- 50 -- -- -- -- 50 -- -- -- -- ns ns ns t cyc Figure 20.20 Figure 20.22 Figure 20.21 ns t cyc Figure 20.19 ns Figure 20.18 Unit ns Test Conditions Figure 20.17 8-bit timer Timer output delay time Timer reset input setup time Timer clock input setup time Timer clock pulse width Single edge Both edges 661 Table 20.17 Timing of On-Chip Supporting Modules (cont) Condition A: VCC = AVCC = 2.7 V to 5.5 V, Vref = 2.7 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o = 2 to 20 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications Condition A Item WDT SCI Overflow output delay time Input clock cycle Symbol t WOVD Min -- 4 6 t SCKW t SCKr t SCKf t TXD 0.4 -- -- -- 100 100 50 Max 100 -- -- 0.6 1.5 1.5 100 -- -- -- Condition B Min -- 4 6 0.4 -- -- -- 50 50 30 Max 50 -- -- 0.6 1.5 1.5 50 -- -- -- ns ns ns ns Figure 20.26 Figure 20.25 t Scyc t cyc Unit ns t cyc Test Conditions Figure 20.23 Figure 20.24 Asynchro- t Scyc nous Synchronous Input clock pulse width Input clock rise time Input clock fall time Transmit data delay time Receive data setup t RXS time (synchronous) Receive data hold t RXH time (synchronous) A/D Trigger input setup t TRGS converter time 662 20.2.4 A/D Conversion Characteristics Table 20.18 lists the A/D conversion characteristics. Table 20.18 A/D Conversion Characteristics Condition A: VCC = AVCC = 2.7 to 5.5 V, Vref = 2.7 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o = 2 to 20 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition A Item Resolution Conversion time Analog input capacitance Permissible signal-source impedance Nonlinearity error Offset error Full-scale error Quantization Absolute accuracy Notes: 1. 2. 3. 4. 4.0 V AVCC 5.5 V 2.7 V AVCC < 4.0 V o 12 MHz o > 12 MHz Min 10 -- -- -- -- -- -- -- -- -- Typ 10 -- -- -- -- -- -- -- -- -- Max 10 13.4 20 10* 5*2 7.5 7.5 7.5 0.5 8.0 1 Condition B Min 10 -- -- -- -- -- -- -- -- -- Typ 10 -- -- -- -- -- -- -- -- -- Max 10 6.7 20 10*3 5*4 3.5 3.5 3.5 0.5 4.0 LSB LSB LSB LSB LSB Unit bits s pF k 663 20.2.5 D/A Conversion Characteristics Table 20.19 lists the D/A conversion characteristics. Table 20.19 D/A Conversion Characteristics Condition A: VCC = AVCC = 2.7 V to 5.5 V, Vref = 2.7 V to AVCC, VSS = AVSS = 0 V, o = 2 to 10 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition B: VCC = AVCC = 5.0 V 10%, Vref = 4.5 V to AVCC, VSS = AVSS = 0 V, o = 2 to 20 MHz, T a = -20 to +75C (regular specifications), Ta = -40 to +85C (wide-range specifications) Condition A Item Resolution Conversion time Absolute accuracy Min 8 -- -- -- Typ 8 -- 2.0 -- Max 8 10 3.0 2.0 Min 8 -- -- -- Condition B Typ 8 -- 1.0 -- Max 8 10 1.5 1.0 Unit bit s LSB LSB 20-pF capacitive load 2-M resistive load 4-M resistive load Test Conditions 664 20.3 Operation Timing The operation timing is described below. 20.3.1 Clock Timing The clock timing is shown below. System Clock Timing: Figure 20.7 shows the system clock timing. tcyc tCH o tCL tCr tCf Figure 20.7 System Clock Timing Oscillator Settling Timing: Figure 20.8 shows the oscillator settling timing. EXTAL tDEXT VCC tDEXT STBY NMI tOSC1 RES tOSC1 o Figure 20.8 Oscillator Settling Timing 665 20.3.2 Control Signal Timing The control signal timing is shown below. Reset Input Timing: Figure 20.9 shows the reset input timing. Interrupt Input Timing: Figure 20.10 shows the interrupt input timing for NMI and IRQ. o tRESS RES tRESW tNMIRS NMI tMDS MD2 to MD0 tMDS FWE tRESS tRESS tNMIRH Figure 20.9 Reset Input Timing 666 o tNMIS NMI tNMIW tNMIH IRQi (i= 0 to 2) tIRQS IRQ Edge input tIRQS IRQ Level input tIRQW tIRQH Figure 20.10 Interrupt Input Timing 20.3.3 Bus Timing The bus timing is shown below. Basic Bus Timing (Two-State Access): Figure 20.11 shows the basic bus timing for external twostate access. Basic Bus Timing (Three-State Access): Figure 20.12 shows the basic bus timing for external three-state access. Basic Bus Timing (Three-State Access with One Wait State): Figure 20.13 shows the basic bus timing for external three-state access with one wait state. Burst ROM Access Timing (Two-State Access): Figure 20.14 shows the burst ROM access timing for two-state access. Burst ROM Access Timing (One-State Access): Figure 20.15 shows the burst ROM access timing for one-state access. External Bus Release Timing: Figure 20.16 shows the external bus release timing. 667 T1 T2 o tAD A23 to A0 tCSD1 CS3 to CS0 tAS tAH tASD AS tASD tRSD1 RD (read) tAS tACC2 tRSD2 tACC3 D15 to D0 (read) tRDS tRDH tWRD2 HWR, LWR (write) tWRD2 tAH tAS tWDD tWSW1 tWDH D15 to D0 (write) Figure 20.11 Basic Bus Timing (Two-State Access) 668 T1 T2 T3 o tAD A23 to A0 tCSD1 CS3 to CS0 tAS tAH tASD AS tASD tRSD1 RD (read) tAS tACC4 tRSD2 tACC5 D15 to D0 (read) tRDS tRDH tWRD1 HWR, LWR (write) tWDD tWDS D15 to D0 (write) tWSW2 tWRD2 tAH tWDH Figure 20.12 Basic Bus Timing (Three-State Access) 669 T1 T2 TW T3 o A23 to A0 CS3 to CS0 AS RD (read) D15 to D0 (read) HWR, LWR (write) D15 to D0 (write) tWTS tWTH WAIT tWTS tWTH Figure 20.13 Basic Bus Timing (Three-State Access with One Wait State) 670 T1 T2 or T3 T1 T2 o tAD A23 to A0 tAS tAH CS3 to CS0 tASD tASD AS tRSD2 RD (read) tACC3 D15 to D0 (read) tRDS tRDH Figure 20.14 Burst ROM Access Timing (Two-State Access) 671 T1 o T2 or T3 T1 tAD A23 to A0 CS3 to CS0 AS tRSD2 RD (read) tACC1 D15 to D0 (read) tRDS tRDH Figure 20.15 Burst ROM Access Timing (One-State Access) 672 o tBRQS tBRQS BREQ tBACD BACK tBZD A23 to A0, CS3 to CS0, AS, RD, HWR, LWR tBACD tBZD Figure 20.16 External Bus Release Timing 20.3.4 Timing for On-Chip Supporting Modules Figure 20.17 to figure 20.26 show the timings for on-chip peripheral modules. T1 o T2 tPRS Port 1 to 4, A to G (read) tPRH tPWD Port 1 to 3, A to G (write) Figure 20.17 I/O Port Input/Output Timing 673 o tTOCD Output compare output* tTICS Input capture input* Note: * TIOCA0 to TIOCA5, TIOCB0 to TIOCB5, TIOCC0, TIOCC3, TIOCD0, TIOCD3 Figure 20.18 TPU Input/Output Timing o tTCKS TCLKA to TCLKD tTCKWL tTCKWH tTCKS Figure 20.19 TPU Clock Input Timing o tTMOD TMO0, TMO1 Figure 20.20 8-Bit Timer Output Timing 674 o tTMCS TMCI0, TMCI1 tTMCWL tTMCWH tTMCS Figure 20.21 8-Bit Timer Clock Input Timing o tTMRS TMRI0, TMRI1 Figure 20.22 8-Bit Timer Reset Input Timing o tWOVD WDTOVF tWOVD Figure 20.23 WDT Output Timing (ZTAT version, Mask ROM version, and ROMless version only) tSCKW SCK0 and SCK1 tScyc tSCKr tSCKf Figure 20.24 SCK Clock Input Timing 675 SCK0 and SCK1 tTXD TxD0 and TxD1 transit data tRXS RxD0 and RxD1 receive data tRXH Figure 20.25 SCI Input/Output Timing (Clock Synchronous Mode) o tTRGS ADTRG Figure 20.26 A/D Converter External Trigger Input Timing 20.4 Usage Note Although the F-ZTAT, ZTAT, mask ROM, and ROMless versions fully meet the electrical specifications listed in this manual, due to differences in the fabrication process, the on-chip ROM, and the layout patterns, there will be differences in the actual values of the electrical characteristics, the operating margins, the noise margins, and other aspects. Therefore, if a system is estimated using the F-ZTAT or ZTAT version, a similar evaluation should also be performed using the mask ROM version. 676 Appendix A Instruction Set A.1 Instruction List Operand Notation Rd Rs Rn ERn MAC (EAd) (EAs) EXR CCR N Z V C PC SP #IMM disp + - x / ( ) <> :8/:16/:24/:32 General register (destination)*1 General register (source)*1 General register*1 General register (32-bit register) Multiply-and-accumulate register (32-bit register)*2 Destination operand Source operand Extended control register Condition-code register N (negative) flag in CCR Z (zero) flag in CCR V (overflow) flag in CCR C (carry) flag in CCR Program counter Stack pointer Immediate data Displacement Add Subtract Multiply Divide Logical AND Logical OR Logical exclusive OR Transfer from the operand on the left to the operand on the right, or transition from the state on the left to the state on the right Logical NOT (logical complement) Contents of operand 8-, 16-, 24-, or 32-bit length Notes: 1. General registers include 8-bit registers (R0H to R7H, R0L to R7L), 16-bit registers (R0 to R7, E0 to E7), and 32-bit registers (ER0 to ER7). 2. The MAC register cannot be used in the H8S/2345 Series. 677 Condition Code Notation Symbol Changes according to the result of instruction * 0 1 -- Undetermined (no guaranteed value) Always cleared to 0 Always set to 1 Not affected by execution of the instruction 678 Table A.1 Instruction Set (1) Data Transfer Instructions Addressing Mode/ Instruction Length (Bytes) Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- Condition Code Operation #xx:8Rd8 IHNZVC No. of States*1 Advanced 1 1 2 3 5 3 2 3 4 2 3 5 3 2 3 4 2 1 2 Mnemonic MOV MOV.B #xx:8,Rd MOV.B Rs,Rd MOV.B @ERs,Rd MOV.B @(d:16,ERs),Rd MOV.B @(d:32,ERs),Rd MOV.B @ERs+,Rd MOV.B @aa:8,Rd MOV.B @aa:16,Rd MOV.B @aa:32,Rd MOV.B Rs,@ERd MOV.B Rs,@(d:16,ERd) MOV.B Rs,@(d:32,ERd) MOV.B Rs,@-ERd MOV.B Rs,@aa:8 MOV.B Rs,@aa:16 MOV.B Rs,@aa:32 MOV.W #xx:16,Rd MOV.W Rs,Rd MOV.W @ERs,Rd B2 B B B B B B B B B B B B B B B W4 W W 2 2 2 4 8 2 2 4 6 2 2 4 8 2 2 4 6 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- Rs8Rd8 @ERsRd8 @(d:16,ERs)Rd8 @(d:32,ERs)Rd8 @ERsRd8,ERs32+1ERs32 @aa:8Rd8 @aa:16Rd8 @aa:32Rd8 Rs8@ERd Rs8@(d:16,ERd) Rs8@(d:32,ERd) ERd32-1ERd32,Rs8@ERd Rs8@aa:8 Rs8@aa:16 Rs8@aa:32 #xx:16Rd16 Rs16Rd16 @ERsRd16 679 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- MOV MOV.W @(d:16,ERs),Rd MOV.W @(d:32,ERs),Rd MOV.W @ERs+,Rd MOV.W @aa:16,Rd MOV.W @aa:32,Rd MOV.W Rs,@ERd MOV.W Rs,@(d:16,ERd) MOV.W Rs,@(d:32,ERd) MOV.W Rs,@-ERd MOV.W Rs,@aa:16 MOV.W Rs,@aa:32 MOV.L #xx:32,ERd MOV.L ERs,ERd MOV.L @ERs,ERd MOV.L @(d:16,ERs),ERd MOV.L @(d:32,ERs),ERd MOV.L @ERs+,ERd MOV.L @aa:16,ERd MOV.L @aa:32,ERd W W W W W W W W W W W L6 L L L L L L L 2 4 2 4 8 2 4 6 @(d:16,ERs)Rd16 @(d:32,ERs)Rd16 ---- ---- 680 Table A.1 Instruction Set (cont) (1) Data Transfer Instructions (cont) Addressing Mode/ Instruction Length (Bytes) Condition Code Operation IHNZVC 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- No. of States*1 Advanced 3 5 3 3 4 2 3 5 3 3 4 3 1 4 5 7 5 5 6 Mnemonic @ERsRd16,ERs32+2ERs32 -- -- @aa:16Rd16 @aa:32Rd16 Rs16@ERd ---- ---- ---- ---- ---- 4 8 2 4 6 Rs16@(d:16,ERd) Rs16@(d:32,ERd) ERd32-2ERd32,Rs16@ERd -- -- Rs16@aa:16 Rs16@aa:32 #xx:32ERd32 ERs32ERd32 @ERsERd32 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 6 10 4 6 8 @(d:16,ERs)ERd32 @(d:32,ERs)ERd32 @ERsERd32,ERs32+4@ERs32 @aa:16ERd32 @aa:32ERd32 Table A.1 Instruction Set (cont) (1) Data Transfer Instructions (cont) Addressing Mode/ Instruction Length (Bytes) @-ERn/@ERn+ @aa @(d,PC) @@aa -- Operand Size #xx Rn @ERn @(d,ERn) Condition Code Operation ERs32@ERd IHNZVC No. of States*1 Advanced 4 5 7 5 5 6 3 5 3 5 7/9/11 [1] Mnemonic MOV MOV.L ERs,@ERd L 4 6 10 4 6 8 2 4 2 4 4 ---- ---- ---- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- MOV.L ERs,@(d:16,ERd) L MOV.L ERs,@(d:32,ERd) L MOV.L ERs,@-ERd MOV.L ERs,@aa:16 MOV.L ERs,@aa:32 POP POP.W Rn POP.L ERn PUSH PUSH.W Rn PUSH.L ERn LDM LDM @SP+,(ERm-ERn) L L L W L W L L ERs32@(d:16,ERd) ERs32@(d:32,ERd) ERd32-4ERd32,ERs32@ERd -- -- ERs32@aa:16 ERs32@aa:32 @SPRn16,SP+2SP @SPERn32,SP+4SP SP-2SP,Rn16@SP SP-4SP,ERn32@SP (@SPERn32,SP+4SP) Repeated for each register restored ---- ---- ---- ---- ---- ---- ------------ STM STM (ERm-ERn),@-SP L 4 (SP-4SP,ERn32@SP) Repeated for each register saved ------------ 7/9/11 [1] MOVFPE MOVTPE MOVFPE @aa:16,Rd MOVTPE Rs,@aa:16 Cannot be used in the H8S/2345 Series Cannot be used in the H8S/2345 Series [2] [2] 681 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- ADD ADD.B #xx:8,Rd ADD.B Rs,Rd ADD.W #xx:16,Rd ADD.W Rs,Rd ADD.L #xx:32,ERd ADD.L ERs,ERd B2 B W4 W L6 L B2 B L L L B W W L L B B W4 2 2 2 2 2 2 2 2 2 2 2 2 2 2 Rd8+#xx:8Rd8 Rd8+Rs8Rd8 Rd16+#xx:16Rd16 Rd16+Rs16Rd16 ERd32+#xx:32ERd32 ERd32+ERs32ERd32 Rd8+#xx:8+CRd8 Rd8+Rs8+CRd8 ERd32+1ERd32 ERd32+2ERd32 ERd32+4ERd32 Rd8+1Rd8 Rd16+1Rd16 Rd16+2Rd16 ERd32+1ERd32 ERd32+2ERd32 Rd8 decimal adjustRd8 Rd8-Rs8Rd8 Rd16-#xx:16Rd16 -- -- -- [3] -- [3] INC INC.B Rd INC.W #1,Rd INC.W #2,Rd INC.L #1,ERd INC.L #2,ERd ---- ---- ---- SUB.W #xx:16,Rd -- [3] 682 Table A.1 Instruction Set (2) Arithmetic Instructions Addressing Mode/ Instruction Length (Bytes) Condition Code Operation IHNZVC No. of States*1 Advanced 1 1 2 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 2 Mnemonic -- [4] -- [4] -- -- ADDX ADDX #xx:8,Rd ADDX Rs,Rd [5] [5] ADDS ADDS #1,ERd ADDS #2,ERd ADDS #4,ERd ---- -- ---- -- ---- -- ---- -- ---- -- ---- -- -- -- -- -- -- ---- ---- --* -- DAA SUB DAA Rd SUB.B Rs,Rd * Table A.1 Instruction Set (cont) (2) Arithmetic Instructions (cont) Addressing Mode/ Instruction Length (Bytes) Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- Condition Code Operation Rd16-Rs16Rd16 ERd32-#xx:32ERd32 IHNZVC No. of States*1 Advanced 1 3 1 1 1 1 1 1 1 1 1 1 1 1 12 20 Mnemonic SUB SUB.W Rs,Rd SUB.L #xx:32,ERd SUB.L ERs,ERd SUBX SUBX #xx:8,Rd SUBX Rs,Rd SUBS SUBS #1,ERd SUBS #2,ERd SUBS #4,ERd DEC DEC.B Rd DEC.W #1,Rd DEC.W #2,Rd DEC.L #1,ERd DEC.L #2,ERd DAS MULXU DAS Rd MULXU.B Rs,Rd MULXU.W Rs,ERd W L6 L B2 B L L L B W W L L B B W 2 -- [3] -- [4] -- [4] -- -- 2 ERd32-ERs32ERd32 Rd8-#xx:8-CRd8 [5] [5] 2 2 2 2 2 2 2 2 2 2 2 2 Rd8-Rs8-CRd8 ERd32-1ERd32 ERd32-2ERd32 ERd32-4ERd32 Rd8-1Rd8 Rd16-1Rd16 Rd16-2Rd16 ERd32-1ERd32 ERd32-2ERd32 Rd8 decimal adjustRd8 ------------ ------------ ------------ ---- ---- ---- ---- ---- --* -- -- -- -- -- *-- Rd8xRs8Rd16 (unsigned multiplication) -- -- -- -- -- -- Rd16xRs16ERd32 (unsigned multiplication) ------------ MULXS MULXS.B Rs,Rd MULXS.W Rs,ERd B W 4 4 Rd8xRs8Rd16 (signed multiplication) Rd16xRs16ERd32 (signed multiplication) ---- ---- ---- ---- 13 21 683 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- CMP CMP.B #xx:8,Rd CMP.B Rs,Rd CMP.W #xx:16,Rd CMP.W Rs,Rd CMP.L #xx:32,ERd CMP.L ERs,ERd B2 B W4 W L6 L B W L W L 2 2 2 2 2 2 2 2 Rd8-#xx:8 Rd8-Rs8 Rd16-#xx:16 Rd16-Rs16 ERd32-#xx:32 ERd32-ERs32 0-Rd8Rd8 0-Rd16Rd16 0-ERd32ERd32 0( -- -- 684 Table A.1 Instruction Set (cont) (2) Arithmetic Instructions (cont) Addressing Mode/ Instruction Length (Bytes) Condition Code Operation IHNZVC No. of States*1 Advanced 12 Mnemonic DIVXU DIVXU.B Rs,Rd B 2 Rd16/Rs8Rd16 (RdH: remainder, -- -- [6] [7] -- -- RdL: quotient) (unsigned division) DIVXU.W Rs,ERd W 2 ERd32/Rs16ERd32 (Ed: remainder, -- -- [6] [7] -- -- Rd: quotient) (unsigned division) 20 DIVXS divxs.B Rs,Rd B 4 Rd16/Rs8Rd16 (RdH: remainder, -- -- [8] [7] -- -- RdL: quotient) (signed division) 13 DIVXS.W Rs,ERd W 4 ERd32/Rs16ERd32 (Ed: remainder, -- -- [8] [7] -- -- Rd: quotient) (signed division) 21 1 1 2 1 3 1 1 1 1 1 1 -- [3] -- [3] -- [4] -- [4] -- -- -- NEG NEG.B Rd NEG.W Rd NEG.L ERd EXTU EXTU.W Rd EXTU.L ERd ---- 0 ---- 0 0-- 0-- Table A.1 Instruction Set (cont) (2) Arithmetic Instructions (cont) Addressing Mode/ Instruction Length (Bytes) Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- Condition Code Operation ( No. of States*1 Advanced 1 Mnemonic EXTS EXTS.W Rd IHNZVC W 2 ---- 0-- EXTS.L ERd L 2 ( ---- 0-- 1 TAS @ERd-0CCR set, (1) ( ---- TAS @ERd B 4 0-- 4 MAC CLRMAC LDMAC MAC @ERn+, @ERm+ CLRMAC LDMAC ERs,MACH LDMAC ERs,MACL Cannot be used in the H8S/2345 Series [2] STMAC STMAC MACH,ERd STMAC MACL,ERd 685 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- AND AND.B #xx:8,Rd AND.B Rs,Rd AND.W #xx:16,Rd AND.W Rs,Rd AND.L #xx:32,ERd AND.L ERs,ERd B2 B W4 W L6 L B2 B W4 W L6 L B2 B W4 W L6 L B W L 4 2 2 2 2 2 4 2 2 4 2 2 Rd8#xx:8Rd8 Rd8Rs8Rd8 Rd16#xx:16Rd16 Rd16Rs16Rd16 ERd32#xx:32ERd32 ERd32ERs32ERd32 Rd8#xx:8Rd8 Rd8Rs8Rd8 Rd16#xx:16Rd16 Rd16Rs16Rd16 ERd32#xx:32ERd32 ERd32ERs32ERd32 Rd8#xx:8Rd8 Rd8Rs8Rd8 Rd16#xx:16Rd16 Rd16Rs16Rd16 ERd32#xx:32ERd32 ERd32ERs32ERd32 Rd8Rd8 Rd16Rd16 ERd32ERd32 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 686 Table A.1 Instruction Set (3) Logical Instructions Addressing Mode/ Instruction Length (Bytes) Condition Code Operation IHNZVC 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- 0-- No. of States*1 Advanced 1 1 2 1 3 2 1 1 2 1 3 2 1 1 2 1 3 2 1 1 1 Mnemonic OR OR.B #xx:8,Rd OR.B Rs,Rd OR.W #xx:16,Rd OR.W Rs,Rd OR.L #xx:32,ERd OR.L ERs,ERd XOR XOR.B #xx:8,Rd XOR.B Rs,Rd XOR.W #xx:16,Rd XOR.W Rs,Rd XOR.L #xx:32,ERd XOR.L ERs,ERd NOT NOT.B Rd NOT.W Rd NOT.L ERd Table A.1 Instruction Set (4) Shift Instructions Addressing Mode/ Instruction Length (Bytes) Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- Condition Code Operation IHNZVC No. of States*1 Advanced 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Mnemonic SHAL SHAL.B Rd SHAL.B #2,Rd SHAL.W Rd SHAL.W #2,Rd SHAL.L ERd SHAL.L #2,ERd SHAR SHAR.B Rd SHAR.B #2,Rd SHAR.W Rd SHAR.W #2,Rd SHAR.L ERd SHAR.L #2,ERd SHLL SHLL.B Rd SHLL.B #2,Rd SHLL.W Rd SHLL.W #2,Rd SHLL.L ERd SHLL.L #2,ERd 0 0 0 0 0 0 0 0 0 0 0 0 B B W W L L B B W W L L B B W W L L 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 C MSB LSB 0 MSB LSB C C MSB LSB 0 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 687 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- SHLR SHLR.B Rd SHLR.B #2,Rd SHLR.W Rd SHLR.W #2,Rd SHLR.L ERd SHLR.L #2,ERd B B W W L L B B W W L L B B W W L L 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 -- -- -- 0 -- -- -- -- -- -- -- -- -- -- -- -- -- MSB -- -- LSB C C MSB LSB MSB LSB C ---- 0 ---- 0 ---- 0 ---- 0 ---- 0 ---- 0 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 688 Table A.1 Instruction Set (cont) (4) Shift Instructions (cont) Addressing Mode/ Instruction Length (Bytes) Condition Code Operation IHNZVC No. of States*1 Advanced 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Mnemonic ROTXL ROTXL.B Rd ROTXL.B #2,Rd ROTXL.W Rd ROTXL.W #2,Rd ROTXL.L ERd ROTXL.L #2,ERd ROTXR ROTXR.B Rd ROTXR.B #2,Rd ROTXR.W Rd ROTXR.W #2,Rd ROTXR.L ERd ROTXR.L #2,ERd Table A.1 Instruction Set (cont) (4) Shift Instructions (cont) Addressing Mode/ Instruction Length (Bytes) @-ERn/@ERn+ @aa @(d,PC) @@aa -- Operand Size #xx Rn @ERn @(d,ERn) Condition Code Operation IHNZVC No. of States*1 Advanced 1 1 1 1 1 1 1 1 1 1 1 1 Mnemonic ROTL ROTL.B Rd ROTL.B #2,Rd ROTL.W Rd ROTL.W #2,Rd ROTL.L ERd ROTL.L #2,ERd ROTR ROTR.B Rd ROTR.B #2,Rd ROTR.W Rd ROTR.W #2,Rd ROTR.L ERd ROTR.L #2,ERd B B W W L L B B W W L L 2 2 2 2 2 2 2 2 2 2 2 2 -- 1 -- -- -- MSB LSB C C MSB LSB ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 0 0 0 0 0 0 0 0 0 0 0 0 689 @-ERn/@ERn+ @aa @(d,PC) @@aa -- Operand Size #xx Rn @ERn @(d,ERn) 690 Table A.1 Instruction Set (5) Bit-Manipulation Instructions Addressing Mode/ Instruction Length (Bytes) Condition Code Operation (#xx:3 of Rd8)1 IHNZVC ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ No. of States*1 Advanced 1 4 4 5 6 1 4 4 5 6 1 4 4 5 6 1 4 4 5 Mnemonic BSET BSET #xx:3,Rd BSET #xx:3,@ERd BSET #xx:3,@aa:8 BSET #xx:3,@aa:16 BSET #xx:3,@aa:32 BSET Rn,Rd BSET Rn,@ERd BSET Rn,@aa:8 BSET Rn,@aa:16 BSET Rn,@aa:32 BCLR BCLR #xx:3,Rd BCLR #xx:3,@ERd BCLR #xx:3,@aa:8 BCLR #xx:3,@aa:16 BCLR #xx:3,@aa:32 BCLR Rn,Rd BCLR Rn,@ERd BCLR Rn,@aa:8 BCLR Rn,@aa:16 B B B B B B B B B B B B B B B B B B B 2 4 4 6 8 2 4 4 6 8 2 4 4 6 8 2 4 4 6 (#xx:3 of @ERd)1 (#xx:3 of @aa:8)1 (#xx:3 of @aa:16)1 (#xx:3 of @aa:32)1 (Rn8 of Rd8)1 (Rn8 of @ERd)1 (Rn8 of @aa:8)1 (Rn8 of @aa:16)1 (Rn8 of @aa:32)1 (#xx:3 of Rd8)0 (#xx:3 of @ERd)0 (#xx:3 of @aa:8)0 (#xx:3 of @aa:16)0 (#xx:3 of @aa:32)0 (Rn8 of Rd8)0 (Rn8 of @ERd)0 (Rn8 of @aa:8)0 (Rn8 of @aa:16)0 Table A.1 Instruction Set (cont) (5) Bit-Manipulation Instructions (cont) Addressing Mode/ Instruction Length (Bytes) Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- Condition Code Operation (Rn8 of @aa:32)0 IHNZVC ------------ No. of States*1 Advanced 6 1 4 Mnemonic BCLR BNOT BCLR Rn,@aa:32 BNOT #xx:3,Rd BNOT #xx:3,@ERd B B B 2 4 8 (#xx:3 of Rd8)[ (#xx:3 of Rd8)] -- -- -- -- -- -- (#xx:3 of @ERd) [ (#xx:3 of @ERd)] ------------ BNOT #xx:3,@aa:8 B 4 (#xx:3 of @aa:8) [ (#xx:3 of @aa:8)] ------------ 4 BNOT #xx:3,@aa:16 B 6 (#xx:3 of @aa:16) [ (#xx:3 of @aa:16)] ------------ 5 BNOT #xx:3,@aa:32 B 8 (#xx:3 of @aa:32) [ (#xx:3 of @aa:32)] ------------ 6 BNOT Rn,Rd BNOT Rn,@ERd BNOT Rn,@aa:8 BNOT Rn,@aa:16 B B B B 2 4 4 6 (Rn8 of Rd8)[ (Rn8 of Rd8)] ------------ 1 4 4 5 (Rn8 of @ERd)[ (Rn8 of @ERd)] -- -- -- -- -- -- (Rn8 of @aa:8)[ (Rn8 of @aa:8)] -- -- -- -- -- -- (Rn8 of @aa:16) [ (Rn8 of @aa:16)] ------------ BNOT Rn,@aa:32 B 8 (Rn8 of @aa:32) [ (Rn8 of @aa:32)] ------------ 6 BTST BTST #xx:3,Rd BTST #xx:3,@ERd BTST #xx:3,@aa:8 B B B B 2 4 4 6 (#xx:3 of Rd8)Z (#xx:3 of @ERd)Z (#xx:3 of @aa:8)Z (#xx:3 of @aa:16)Z ------ ------ ------ ------ ---- ---- ---- ---- 1 3 3 4 691 BTST #xx:3,@aa:16 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- BTST BTST #xx:3,@aa:32 BTST Rn,Rd BTST Rn,@ERd BTST Rn,@aa:8 BTST Rn,@aa:16 BTST Rn,@aa:32 B B B B B B B B B B B B B B B B B B B 2 4 2 4 2 4 2 4 8 (#xx:3 of @aa:32)Z (Rn8 of Rd8)Z (Rn8 of @ERd)Z ------ ------ ------ ------ ------ ------ BLD BLD #xx:3,Rd BLD #xx:3,@ERd BLD #xx:3,@aa:8 BLD #xx:3,@aa:16 BLD #xx:3,@aa:32 (#xx:3 of Rd8)C (#xx:3 of @ERd)C 4 6 8 (#xx:3 of @aa:8)C (#xx:3 of @aa:16)C (#xx:3 of @aa:32)C (#xx:3 of Rd8)C (#xx:3 of @ERd)C 4 6 8 (#xx:3 of @aa:8)C (#xx:3 of @aa:16)C (#xx:3 of @aa:32)C C(#xx:3 of Rd8) C(#xx:3 of @ERd) 4 C(#xx:3 of @aa:8) ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- 692 Table A.1 Instruction Set (cont) (5) Bit-Manipulation Instructions (cont) Addressing Mode/ Instruction Length (Bytes) Condition Code Operation IHNZVC ---- ---- ---- ---- ---- ---- No. of States*1 Advanced 5 1 3 3 4 5 1 3 3 4 5 1 3 3 4 5 1 4 4 Mnemonic 4 6 8 (Rn8 of @aa:8)Z (Rn8 of @aa:16)Z (Rn8 of @aa:32)Z BILD BILD #xx:3,Rd BILD #xx:3,@ERd BILD #xx:3,@aa:8 BILD #xx:3,@aa:16 BILD #xx:3,@aa:32 BST BST #xx:3,Rd BST #xx:3,@ERd BST #xx:3,@aa:8 ------------ ------------ ------------ Table A.1 Instruction Set (cont) (5) Bit-Manipulation Instructions (cont) Addressing Mode/ Instruction Length (Bytes) Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- Condition Code Operation C(#xx:3 of @aa:16) C(#xx:3 of @aa:32) C(#xx:3 of Rd8) IHNZVC ------------ ------------ ------------ ------------ ------------ ------------ ------------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- No. of States*1 Advanced 5 6 1 4 4 5 6 1 3 3 4 5 1 3 3 4 5 1 3 Mnemonic BST BST #xx:3,@aa:16 BST #xx:3,@aa:32 BIST BIST #xx:3,Rd BIST #xx:3,@ERd BIST #xx:3,@aa:8 BIST #xx:3,@aa:16 BIST #xx:3,@aa:32 BAND BAND #xx:3,Rd BAND #xx:3,@ERd BAND #xx:3,@aa:8 BAND #xx:3,@aa:16 BAND #xx:3,@aa:32 BIAND BIAND #xx:3,Rd BIAND #xx:3,@ERd BIAND #xx:3,@aa:8 BIAND #xx:3,@aa:16 BIAND #xx:3,@aa:32 BOR BOR #xx:3,Rd BOR #xx:3,@ERd B B B B B B B B B B B B B B B B B B B 2 4 2 4 2 4 2 4 6 8 C(#xx:3 of @ERd) 4 6 8 C(#xx:3 of @aa:8) C(#xx:3 of @aa:16) C(#xx:3 of @aa:32) C(#xx:3 of Rd8)C C(#xx:3 of @ERd)C 4 6 8 C(#xx:3 of @aa:8)C C(#xx:3 of @aa:16)C C(#xx:3 of @aa:32)C C[ (#xx:3 of Rd8)]C C[ (#xx:3 of @ERd)]C 4 6 8 C[ (#xx:3 of @aa:8)]C C[ (#xx:3 of @aa:16)]C C[ (#xx:3 of @aa:32)]C C(#xx:3 of Rd8)C C(#xx:3 of @ERd)C 693 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- BOR BOR #xx:3,@aa:8 BOR #xx:3,@aa:16 BOR #xx:3,@aa:32 B B B B B B B B B B B B B B B B B B 2 4 2 4 2 4 4 6 8 C(#xx:3 of @aa:8)C C(#xx:3 of @aa:16)C C(#xx:3 of @aa:32)C C[ (#xx:3 of Rd8)]C C[ (#xx:3 of @ERd)]C ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- 694 Table A.1 Instruction Set (cont) (5) Bit-Manipulation Instructions (cont) Addressing Mode/ Instruction Length (Bytes) Condition Code Operation IHNZVC No. of States*1 Advanced 3 4 5 1 3 3 4 5 1 3 3 4 5 1 3 3 4 5 Mnemonic BIOR BIOR #xx:3,Rd BIOR #xx:3,@ERd BIOR #xx:3,@aa:8 BIOR #xx:3,@aa:16 BIOR #xx:3,@aa:32 4 6 8 C[ (#xx:3 of @aa:8)]C C[ (#xx:3 of @aa:16)]C C[ (#xx:3 of @aa:32)]C C(#xx:3 of Rd8)C C(#xx:3 of @ERd)C BXOR BXOR #xx:3,Rd BXOR #xx:3,@ERd BXOR #xx:3,@aa:8 BXOR #xx:3,@aa:16 BXOR #xx:3,@aa:32 4 6 8 C(#xx:3 of @aa:8)C C(#xx:3 of @aa:16)C C(#xx:3 of @aa:32)C C[ (#xx:3 of Rd8)]C C[ (#xx:3 of @ERd)]C BIXOR BIXOR #xx:3,Rd BIXOR #xx:3,@ERd BIXOR #xx:3,@aa:8 BIXOR #xx:3,@aa:16 BIXOR #xx:3,@aa:32 4 6 8 C[ (#xx:3 of @aa:8)]C C[ (#xx:3 of @aa:16)]C C[ (#xx:3 of @aa:32)]C Table A.1 Instruction Set (6) Branch Instructions Addressing Mode/ Instruction Length (Bytes) Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- Operation Branching Condition Condition Code IHNZVC ------------ ------------ Never ------------ ------------ CZ=0 ------------ ------------ CZ=1 ------------ ------------ C=0 ------------ ------------ C=1 ------------ ------------ Z=0 ------------ ------------ Z=1 ------------ ------------ V=0 ------------ ------------ No. of States*1 Advanced 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 Mnemonic Bcc BRA d:8(BT d:8) BRA d:16(BT d:16) BRN d:8(BF d:8) BRN d:16(BF d:16) BHI d:8 BHI d:16 BLS d:8 BLS d:16 BCC d:B(BHS d:8) BCC d:16(BHS d:16) BCS d:8(BLO d:8) BCS d:16(BLO d:16) BNE d:8 BNE d:16 BEQ d:8 BEQ d:16 BVC d:8 BVC d:16 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 2 4 if condition is true then Always PCPC+d else next; 695 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- 696 Table A.1 Instruction Set (cont) (6) Branch Instructions (cont) Addressing Mode/ Instruction Length (Bytes) Operation Branching Condition Condition Code IHNZVC ------------ ------------ N=0 ------------ ------------ N=1 ------------ ------------ NV=0 ------------ ------------ NV=1 ------------ ------------ Z(NV)=0 -- -- -- -- -- -- ------------ Z(NV)=1 -- -- -- -- -- -- ------------ No. of States*1 Advanced 2 3 2 3 2 3 2 3 2 3 2 3 2 3 Mnemonic Bcc BVS d:8 BVS d:16 BPL d:8 BPL d:16 BMI d:8 BMI d:16 BGE d:8 BGE d:16 BLT d:8 BLT d:16 BGT d:8 BGT d:16 BLE d:8 BLE d:16 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 2 4 2 4 2 4 2 4 2 4 2 4 2 4 V=1 Table A.1 Instruction Set (cont) (6) Branch Instructions (cont) Addressing Mode/ Instruction Length (Bytes) Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- Condition Code Operation PCERn IHNZVC ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ No. of States*1 Advanced 2 3 5 4 5 4 5 6 5 Mnemonic JMP JMP @ERn JMP @aa:24 JMP @@aa:8 BSR BSR d:8 BSR d:16 JSR JSR @ERn JSR @aa:24 JSR @@aa:8 RTS RTS -- -- -- -- -- -- -- -- -- 2 4 2 2 4 2 4 2 PCaa:24 PC@aa:8 PC@-SP,PCPC+d:8 PC@-SP,PCPC+d:16 PC@-SP,PCERn PC@-SP,PCaa:24 PC@-SP,PC@aa:8 2 PC@SP+ 697 Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- RTE RTE -- PC@SP+ SLEEP LDC SLEEP LDC #xx:8,CCR LDC #xx:8,EXR LDC Rs,CCR LDC Rs,EXR LDC @ERs,CCR LDC @ERs,EXR LDC @(d:16,ERs),CCR LDC @(d:16,ERs),EXR LDC @(d:32,ERs),CCR LDC @(d:32,ERs),EXR LDC @ERs+,CCR LDC @ERs+,EXR LDC @aa:16,CCR LDC @aa:16,EXR LDC @aa:32,CCR LDC @aa:32,EXR -- B2 B4 B B W W W W W W W W W W W W 2 2 4 4 6 6 10 10 4 4 6 6 8 8 Transition to power-down state #xx:8CCR #xx:8EXR Rs8CCR Rs8EXR @ERsCCR @ERsEXR @(d:16,ERs)CCR @(d:16,ERs)EXR @(d:32,ERs)CCR @(d:32,ERs)EXR @ERsCCR,ERs32+2ERs32 @ERsEXR,ERs32+2ERs32 @aa:16CCR @aa:16EXR @aa:32CCR @aa:32EXR ------------ 2 1 2 1 1 3 3 4 4 6 6 4 4 4 4 5 5 698 Table A.1 Instruction Set (7) System Control Instructions Addressing Mode/ Instruction Length (Bytes) Condition Code Operation PC@-SP,CCR@-SP, EXR@-SP, No. of States*1 Advanced 8 [9] Mnemonic TRAPA TRAPA #xx:2 -- 5 [9] ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ Table A.1 Instruction Set (cont) (7) System Control Instructions (cont) Addressing Mode/ Instruction Length (Bytes) Operand Size #xx Rn @ERn @(d,ERn) @-ERn/@ERn+ @aa @(d,PC) @@aa -- Condition Code Operation CCRRd8 EXRRd8 IHNZVC ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ No. of States*1 Advanced 1 1 3 3 4 4 6 6 4 4 4 4 5 5 1 2 1 2 1 2 1 Mnemonic STC STC CCR,Rd STC EXR,Rd STC CCR,@ERd STC EXR,@ERd STC CCR,@(d:16,ERd) STC EXR,@(d:16,ERd) STC CCR,@(d:32,ERd) STC EXR,@(d:32,ERd) STC CCR,@-ERd STC EXR,@-ERd STC CCR,@aa:16 STC EXR,@aa:16 STC CCR,@aa:32 STC EXR,@aa:32 ANDC ANDC #xx:8,CCR ANDC #xx:8,EXR ORC ORC #xx:8,CCR ORC #xx:8,EXR XORC XORC #xx:8,CCR XORC #xx:8,EXR B B W W W W W W W W W W W W B2 B4 B2 B4 B2 B4 -- 2 2 4 4 6 6 10 10 4 4 6 6 8 8 CCR@ERd EXR@ERd CCR@(d:16,ERd) EXR@(d:16,ERd) CCR@(d:32,ERd) EXR@(d:32,ERd) ERd32-2ERd32,CCR@ERd -- -- -- -- -- -- ERd32-2ERd32,EXR@ERd CCR@aa:16 EXR@aa:16 CCR@aa:32 EXR@aa:32 CCR#xx:8CCR EXR#xx:8EXR CCR#xx:8CCR EXR#xx:8EXR CCR#xx:8CCR EXR#xx:8EXR 2 PCPC+2 ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ NOP NOP 699 @ERn @(d,ERn) @-ERn/@ERn+ Operand Size #xx Rn @aa @(d,PC) @@aa -- 700 Table A.1 Instruction Set (8) Block Transfer Instructions Addressing Mode/ Instruction Length (Bytes) Condition Code Operation IHNZVC ------------ No. of States*1 Advanced 4+2n *2 Mnemonic EEPMOV EEPMOV.B -- 4 if R4L0 Repeat @ER5@ER6 ER5+1ER5 ER6+1ER6 R4L-1R4L Until R4L=0 else next; 4 if R40 Repeat @ER5@ER6 ER5+1ER5 ER6+1ER6 R4-1R4 Until R4=0 else next; EEPMOV.W -- ------------ 4+2n *2 Notes: 1. The number of states is the number of states required for execution when the instruction and its operands are located in on-chip memory. 2. n is the initial value of R4L or R4. [1] Seven states for saving or restoring two registers, nine states for three registers, or eleven states for four registers. [2] Cannot be used in the H8S/2345 Series. [3] Set to 1 when a carry or borrow occurs at bit 11; otherwise cleared to 0. [4] Set to 1 when a carry or borrow occurs at bit 27; otherwise cleared to 0. [5] Retains its previous value when the result is zero; otherwise cleared to 0. [6] Set to 1 when the divisor is negative; otherwise cleared to 0. [7] Set to 1 when the divisor is zero; otherwise cleared to 0. [8] Set to 1 when the quotient is negative; otherwise cleared to 0. [9] One additional state is required for execution when EXR is valid. A.2 Table A.2 Instruction Codes Instruction Format 1st byte 8 rd 8 rd rd rd 0 erd IMM IMM 9 9 A A B B B rd E rd IMM rs rd rd rd 0 erd 0 IMM 4 1 IMM rd 0 7 0 0 disp 0 0 disp 1 0 disp disp abs abs 6 0 IMM 0 7 6 0 IMM 0 7 6 0 IMM 0 7 6 0 IMM 0 0 6 0 IMM 0 erd abs 1 3 6 6 0 ers 0 erd IMM IMM 6 rs 6 F rd 6 9 6 A 1 6 1 6 C E A A 0 8 1 8 rs IMM 9 0 erd 8 0 erd 0 0 erd 1 ers 0 erd 1 rs 1 rs 0 7 0 7 0 0 0 0 9 0 E 1 7 6 7 0 0 0 7 7 7 6 6 4 5 4 5 IMM 2nd byte 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte 10th byte Instruction B B Mnemonic Size ADD ADD.B #xx:8,Rd ADD.B Rs,Rd ADD.W #xx:16,Rd W ADD.W Rs,Rd L L L L L B B B B W ADD.L #xx:32,ERd ADD.L ERs,ERd ADDS ADDS #1,ERd Instruction Codes ADDS #2,ERd ADDS #4,ERd Table A.2 shows the instruction codes. ADDX ADDX #xx:8,Rd ADDX Rs,Rd AND AND.B #xx:8,Rd AND.B Rs,Rd AND.W #xx:16,Rd W AND.W Rs,Rd L L B B B B B B B W AND.L #xx:32,ERd AND.L ERs,ERd ANDC ANDC #xx:8,CCR ANDC #xx:8,EXR BAND BAND #xx:3,Rd BAND #xx:3,@ERd BAND #xx:3,@aa:8 BAND #xx:3,@aa:16 BAND #xx:3,@aa:32 Bcc BRA d:8 (BT d:8) -- BRA d:16 (BT d:16) -- BRN d:8 (BF d:8) -- BRN d:16 (BF d:16) -- 701 702 Table A.2 Instruction Codes (cont) Instruction Bcc Mnemonic BHI d:8 BHI d:16 BLS d:8 BLS d:16 BCC d:8 (BHS d:8) BCC d:16 (BHS d:16) BCS d:8 (BLO d:8) BCS d:16 (BLO d:16) BNE d:8 BNE d:16 BEQ d:8 BEQ d:16 BVC d:8 BVC d:16 BVS d:8 BVS d:16 BPL d:8 BPL d:16 BMI d:8 BMI d:16 BGE d:8 BGE d:16 BLT d:8 BLT d:16 BGT d:8 BGT d:16 BLE d:8 BLE d:16 Instruction Format Size -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1st byte 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 2 8 3 8 4 8 5 8 6 8 7 8 8 8 9 8 A 8 B 8 C 8 D 8 E 8 F 8 F E disp 0 disp D disp 0 disp C disp 0 disp B disp 0 disp A disp 0 disp 9 disp 0 disp 8 disp 0 disp 7 disp 0 disp 6 disp 0 disp 5 disp 0 disp 4 disp 0 disp 3 disp 0 disp 2 disp 0 disp 2nd byte disp 0 disp 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte 10th byte Table A.2 Instruction Codes (cont) Instruction BCLR Mnemonic BCLR #xx:3,Rd BCLR #xx:3,@ERd BCLR #xx:3,@aa:8 BCLR #xx:3,@aa:16 BCLR #xx:3,@aa:32 BCLR Rn,Rd BCLR Rn,@ERd BCLR Rn,@aa:8 BCLR Rn,@aa:16 BCLR Rn,@aa:32 BIAND BIAND #xx:3,Rd BIAND #xx:3,@ERd BIAND #xx:3,@aa:8 BIAND #xx:3,@aa:16 BIAND #xx:3,@aa:32 BILD BILD #xx:3,Rd BILD #xx:3,@ERd BILD #xx:3,@aa:8 BILD #xx:3,@aa:16 BILD #xx:3,@aa:32 BIOR BIOR #xx:3,Rd BIOR #xx:3,@ERd BIOR #xx:3,@aa:8 BIOR #xx:3,@aa:16 BIOR #xx:3,@aa:32 Instruction Format Size B B B B B B B B B B B B B B B B B B B B B B B B B 1st byte 7 7 7 6 6 6 7 7 6 6 7 7 7 6 6 7 7 7 6 6 7 7 7 6 6 2 D F A A 2 D F A A 6 C E A A 7 C E A A 4 C E A A 1 3 1 3 1 IMM 0 erd abs 0 0 1 3 1 IMM 0 erd abs 0 0 rd 0 7 7 4 4 1 IMM 1 IMM abs abs 0 0 7 4 1 IMM 0 7 4 1 IMM 0 1 3 1 IMM 0 erd abs 0 0 rd 0 7 7 7 7 1 IMM 1 IMM abs abs 0 0 7 7 1 IMM 0 7 7 1 IMM 0 1 3 rn 0 erd abs 8 8 rd 0 7 7 6 6 1 IMM 1 IMM abs abs 0 0 7 6 1 IMM 0 7 6 1 IMM 0 2nd byte 0 IMM 0 erd abs 8 8 rd 0 6 6 2 2 abs abs rn rn 0 0 6 2 rn 0 6 2 rn 0 rd 0 7 7 2 2 0 IMM 0 IMM abs abs 0 0 7 2 0 IMM 0 7 2 0 IMM 0 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte 10th byte 703 704 Table A.2 Instruction Codes (cont) Instruction BIST Mnemonic BIST #xx:3,Rd BIST #xx:3,@ERd BIST #xx:3,@aa:8 BIST #xx:3,@aa:16 BIST #xx:3,@aa:32 BIXOR BIXOR #xx:3,Rd BIXOR #xx:3,@ERd BIXOR #xx:3,@aa:8 BIXOR #xx:3,@aa:16 BIXOR #xx:3,@aa:32 BLD BLD #xx:3,Rd BLD #xx:3,@ERd BLD #xx:3,@aa:8 BLD #xx:3,@aa:16 BLD #xx:3,@aa:32 BNOT BNOT #xx:3,Rd BNOT #xx:3,@ERd BNOT #xx:3,@aa:8 BNOT #xx:3,@aa:16 BNOT #xx:3,@aa:32 BNOT Rn,Rd BNOT Rn,@ERd BNOT Rn,@aa:8 BNOT Rn,@aa:16 BNOT Rn,@aa:32 Instruction Format Size B B B B B B B B B B B B B B B B B B B B B B B B B 1st byte 6 7 7 6 6 7 7 7 6 6 7 7 7 6 6 7 7 7 6 6 6 7 7 6 6 7 D F A A 5 C E A A 7 C E A A 1 D F A A 1 D F A A 1 3 1 3 rn 0 erd abs 8 8 1 3 0 IMM 0 erd abs 8 8 rd 0 6 6 1 1 abs abs rn rn 0 0 6 1 rn 0 6 1 rn 0 1 3 0 IMM 0 erd abs 0 0 rd 0 7 7 1 1 0 IMM 0 IMM abs abs 0 0 7 1 0 IMM 0 7 1 0 IMM 0 1 3 1 IMM 0 erd abs 0 0 rd 0 7 7 7 7 0 IMM 0 IMM abs abs 0 0 7 7 0 IMM 0 7 7 0 IMM 0 2nd byte 1 IMM 0 erd abs 8 8 rd 0 7 7 5 5 1 IMM 1 IMM abs abs 0 0 7 5 1 IMM 0 7 5 1 IMM 0 rd 0 6 6 7 7 1 IMM 1 IMM abs abs 0 0 6 7 1 IMM 0 6 7 1 IMM 0 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte 10th byte Table A.2 Instruction Codes (cont) Instruction BOR Mnemonic BOR #xx:3,Rd BOR #xx:3,@ERd BOR #xx:3,@aa:8 BOR #xx:3,@aa:16 BOR #xx:3,@aa:32 BSET BSET #xx:3,Rd BSET #xx:3,@ERd BSET #xx:3,@aa:8 BSET #xx:3,@aa:16 BSET #xx:3,@aa:32 BSET Rn,Rd BSET Rn,@ERd BSET Rn,@aa:8 BSET Rn,@aa:16 BSET Rn,@aa:32 BSR BSR d:8 BSR d:16 BST BST #xx:3,Rd BST #xx:3,@ERd BST #xx:3,@aa:8 BST #xx:3,@aa:16 BST #xx:3,@aa:32 BTST BTST #xx:3,Rd BTST #xx:3,@ERd BTST #xx:3,@aa:8 BTST #xx:3,@aa:16 BTST #xx:3,@aa:32 BTST Rn,Rd BTST Rn,@ERd Instruction Format Size B B B B B B B B B B B B B B B -- -- B B B B B B B B B B B B 1st byte 7 7 7 6 6 7 7 7 6 6 6 7 7 6 6 5 5 6 7 7 6 6 7 7 7 6 6 6 7 4 C E A A 0 D F A A 0 D F A A 5 C 7 D F A A 3 C E A A 3 C 1 3 rn 0 erd 1 3 0 IMM 0 erd abs 0 0 rd 0 6 3 rn 0 0 0 IMM 0 erd abs 8 8 rd 0 7 7 3 3 0 IMM 0 IMM abs abs 0 0 7 3 0 IMM 0 7 3 0 IMM 0 1 3 disp 0 rd 0 6 6 7 7 0 IMM 0 IMM abs abs 0 0 6 7 0 IMM 0 6 7 0 IMM 0 disp 1 3 rn 0 erd abs 8 8 1 3 0 IMM 0 erd abs 8 8 rd 0 6 6 0 0 abs abs rn rn 0 0 6 0 rn 0 6 0 rn 0 2nd byte 0 IMM 0 erd abs 0 0 rd 0 7 7 0 0 0 IMM 0 IMM abs abs 0 0 7 0 0 IMM 0 7 0 0 IMM 0 rd 0 7 7 4 4 0 IMM 0 IMM abs abs 0 0 7 4 0 IMM 0 7 4 0 IMM 0 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte 10th byte 705 706 Table A.2 Instruction Codes (cont) Instruction BTST Mnemonic BTST Rn,@aa:8 BTST Rn,@aa:16 BTST Rn,@aa:32 BXOR BXOR #xx:3,Rd BXOR #xx:3,@ERd BXOR #xx:3,@aa:8 BXOR #xx:3,@aa:16 BXOR #xx:3,@aa:32 CLRMAC CLRMAC CMP CMP.B #xx:8,Rd CMP.B Rs,Rd CMP.W #xx:16,Rd CMP.W Rs,Rd CMP.L #xx:32,ERd CMP.L ERs,ERd DAA DAS DEC DAA Rd DAS Rd DEC.B Rd DEC.W #1,Rd DEC.W #2,Rd DEC.L #1,ERd DEC.L #2,ERd DIVXS DIVXS.B Rs,Rd DIVXS.W Rs,ERd DIVXU DIVXU.B Rs,Rd DIVXU.W Rs,ERd EEPMOV EEPMOV.B EEPMOV.W Instruction Format Size B B B B B B B B -- B B W W L L B B B W W L L B W B W -- -- 1st byte 7 6 6 7 7 7 6 6 E A A 5 C E A A 1 3 1 3 0 IMM 0 erd abs 0 0 2nd byte abs 0 0 rd 0 7 7 5 5 0 IMM 0 IMM abs abs 0 0 7 5 0 IMM 0 7 5 0 IMM 0 3rd byte 6 3 abs abs 4th byte rn 0 6 3 rn 0 6 3 rn 0 5th byte 6th byte 7th byte 8th byte 9th byte 10th byte Cannot be used in the H8S/2345 Series A 1 7 1 7 1 0 1 1 1 1 1 1 0 0 5 5 7 7 rd C 9 D A F F F A B B B B 1 1 1 3 B B IMM rs 2 rs 2 rd rd rd 0 erd IMM IMM 1 ers 0 erd 0 0 0 5 D 7 F D D rs rs 5 D rd rd rd rd rd 0 erd 0 erd 0 0 rd 0 erd C 4 5 5 9 9 8 8 F F 5 5 1 3 rs rs rd 0 erd Table A.2 Instruction Codes (cont) Instruction EXTS Mnemonic EXTS.W Rd EXTS.L ERd EXTU EXTU.W Rd EXTU.L ERd INC INC.B Rd INC.W #1,Rd INC.W #2,Rd INC.L #1,ERd INC.L #2,ERd JMP JMP @ERn JMP @aa:24 JMP @@aa:8 JSR JSR @ERn JSR @aa:24 JSR @@aa:8 LDC LDC #xx:8,CCR LDC #xx:8,EXR LDC Rs,CCR LDC Rs,EXR LDC @ERs,CCR LDC @ERs,EXR LDC @(d:16,ERs),CCR LDC @(d:16,ERs),EXR LDC @(d:32,ERs),CCR LDC @(d:32,ERs),EXR LDC @ERs+,CCR LDC @ERs+,EXR LDC @aa:16,CCR LDC @aa:16,EXR Instruction Format Size W L W L B W W L L -- -- -- -- -- -- B B B B W W W W W W W W W W 1st byte 1 1 1 1 0 0 0 0 0 5 5 5 5 5 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 7 7 7 A B B B B 9 A B D E F 7 1 3 3 1 1 1 1 1 1 1 1 1 1 4 0 1 4 4 4 4 4 4 4 4 4 4 abs IMM 1 rs rs 0 1 0 1 0 1 0 1 0 1 6 6 6 6 7 7 6 6 6 6 9 9 F F 8 8 D D B B 0 ers 0 ers 0 ers 0 ers 0 ers 0 ers 0 ers 0 ers 0 0 0 0 0 0 0 0 0 0 0 0 disp disp 6 6 B B disp disp 2 2 0 0 disp disp 0 7 IMM abs 0 ern 0 abs 2nd byte D F 5 7 0 5 D 7 F 0 ern rd 0 erd rd 0 erd rd rd rd 0 erd 0 erd 0 abs 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte 10th byte 707 708 Table A.2 Instruction Codes (cont) Instruction LDC Mnemonic LDC @aa:32,CCR LDC @aa:32,EXR LDM LDM.L @SP+, (ERn-ERn+1) LDM.L @SP+, (ERn-ERn+2) LDM.L @SP+, (ERn-ERn+3) LDMAC LDMAC ERs,MACH LDMAC ERs,MACL MAC MOV MAC @ERn+,@ERm+ MOV.B #xx:8,Rd MOV.B Rs,Rd MOV.B @ERs,Rd MOV.B @(d:16,ERs),Rd MOV.B @(d:32,ERs),Rd MOV.B @ERs+,Rd MOV.B @aa:8,Rd MOV.B @aa:16,Rd MOV.B @aa:32,Rd MOV.B Rs,@ERd MOV.B Rs,@(d:16,ERd) MOV.B Rs,@(d:32,ERd) MOV.B Rs,@-ERd MOV.B Rs,@aa:8 MOV.B Rs,@aa :16 MOV.B Rs,@aa:32 MOV.W #xx:16,Rd MOV.W Rs,Rd MOV.W @ERs,Rd MOV.W @(d:16,ERs),Rd MOV.W @(d:32,ERs),Rd Instruction Format Size W W L L L L L -- B B B B B B B B B B B B B B B B W W W W W F 0 6 6 7 6 2 6 6 6 6 7 6 3 6 6 7 0 6 6 7 rd C 8 E 8 C rd A A 8 E 8 C rs A A 9 D 9 F 8 8 A 0 rs 0 ers 0 ers 0 ers 0 2 1 erd 1 erd 0 erd 1 erd abs rs rs rd rd rd rd 0 6 B disp 2 rd disp IMM abs abs IMM rs 0 ers 0 ers 0 ers 0 ers abs rd rd rs rs 0 rs 6 A disp A rs disp abs abs rd rd rd 0 rd 6 A disp 2 rd disp 1st byte 0 0 0 0 0 1 1 1 1 1 2nd byte 4 4 1 2 3 0 1 0 0 0 3rd byte 6 6 6 6 6 B B D D D 4th byte 2 2 7 7 7 0 0 0 ern+1 0 ern+2 0 ern+3 5th byte 6th byte abs abs 7th byte 8th byte 9th byte 10th byte Cannot be used in the H8S/2345 Series Table A.2 Instruction Codes (cont) Instruction MOV Mnemonic MOV.W @ERs+,Rd MOV.W @aa:16,Rd MOV.W @aa:32,Rd MOV.W Rs,@ERd MOV.W Rs,@(d:16,ERd) MOV.W Rs,@(d:32,ERd) MOV.W Rs,@-ERd MOV.W Rs,@aa:16 MOV.W Rs,@aa:32 MOV.L #xx:32,Rd MOV.L ERs,ERd MOV.L @ERs,ERd MOV.L @(d:16,ERs),ERd MOV.L @(d:32,ERs),ERd MOV.L @ERs+,ERd MOV.L @aa:16 ,ERd MOV.L @aa:32 ,ERd MOV.L ERs,@ERd MOV.L ERs,@(d:16,ERd) Instruction Format Size W W W W W W W W W L L L L L L L L L L 1st byte 6 6 6 6 6 7 6 6 6 7 0 0 0 0 0 0 0 0 0 0 0 0 0 D B B 9 F 8 D B B A F 1 1 1 1 1 1 1 1 1 1 1 1 2nd byte 0 ers 0 2 1 erd 1 erd 0 erd 1 erd 8 A 0 rd rd rd rs rs 0 rs rs rs 0 erd abs abs IMM 6 B disp A rs disp abs abs 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte 10th byte 1 ers 0 erd 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 6 7 6 6 6 6 6 7 6 6 6 9 F 8 D B B 9 F 8 D B B 0 ers 0 erd 0 ers 0 erd 0 ers 0 6 B disp 2 0 erd disp 0 ers 0 erd 0 2 0 erd 0 erd abs abs 1 erd 0 ers 1 erd 0 ers 0 erd 0 6 B disp A 0 ers disp MOV.L ERs,@(d:32,ERd)* L MOV.L ERs,@-ERd MOV.L ERs,@aa:16 MOV.L ERs,@aa:32 MOVFPE MOVFPE @aa:16,Rd MOVTPE MOVTPE Rs,@aa:16 MULXS MULXS.B Rs,Rd MULXS.W Rs,ERd MULXU MULXU.B Rs,Rd MULXU.W Rs,ERd L L L B B B W B W 1 erd 0 ers 8 A 0 ers 0 ers abs abs Cannot be used in the H8S/2345 Series 0 0 5 5 1 1 0 2 C C rs rs 0 0 rd 0 erd 5 5 0 2 rs rs rd 0 erd 709 710 Table A.2 Instruction Codes (cont) Instruction NEG Mnemonic NEG.B Rd NEG.W Rd NEG.L ERd NOP NOT NOP NOT.B Rd NOT.W Rd NOT.L ERd OR OR.B #xx:8,Rd OR.B Rs,Rd OR.W #xx:16,Rd OR.W Rs,Rd OR.L #xx:32,ERd OR.L ERs,ERd ORC ORC #xx:8,CCR ORC #xx:8,EXR POP POP.W Rn POP.L ERn PUSH PUSH.W Rn PUSH.L ERn ROTL ROTL.B Rd ROTL.B #2, Rd ROTL.W Rd ROTL.W #2, Rd ROTL.L ERd ROTL.L #2, ERd Instruction Format Size B W L -- B W L B B W W L L B B W L W L B B W W L L 1st byte 1 1 1 0 1 1 1 C 1 7 6 7 0 0 0 6 0 6 0 1 1 1 1 1 1 7 7 7 0 7 7 7 rd 4 9 4 A 1 4 1 D 1 D 1 2 2 2 2 2 2 4 7 0 F 0 8 C 9 D B F rs 4 rs 4 F IMM 1 rn 0 rn 0 rd rd rd rd 0 erd 0 erd 6 D F 0 ern 6 D 7 0 ern 0 4 IMM 2nd byte 8 9 B 0 0 1 3 rd rd 0 erd 0 rd rd 0 erd IMM rd rd rd 0 erd 0 6 4 IMM 0 ers 0 erd IMM 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte 10th byte Table A.2 Instruction Codes (cont) Instruction ROTR Mnemonic ROTR.B Rd ROTR.B #2, Rd ROTR.W Rd ROTR.W #2, Rd ROTR.L ERd ROTR.L #2, ERd ROTXL ROTXL.B Rd ROTXL.B #2, Rd ROTXL.W Rd ROTXL.W #2, Rd ROTXL.L ERd ROTXL.L #2, ERd ROTXR ROTXR.B Rd ROTXR.B #2, Rd ROTXR.W Rd ROTXR.W #2, Rd ROTXR.L ERd ROTXR.L #2, ERd RTE RTS SHAL RTE RTS SHAL.B Rd SHAL.B #2, Rd SHAL.W Rd SHAL.W #2, Rd SHAL.L ERd SHAL.L #2, ERd Instruction Format Size B B W W L L B B W W L L B B W W L L -- -- B B W W L L 1st byte 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 5 5 1 1 1 1 1 1 3 3 3 3 3 3 2 2 2 2 2 2 3 3 3 3 3 3 6 4 0 0 0 0 0 0 2nd byte 8 C 9 D B F 0 4 1 5 3 7 0 4 1 5 3 7 7 7 8 C 9 D B F rd rd rd rd 0 erd 0 erd rd rd rd rd 0 erd 0 erd rd rd rd rd 0 erd 0 erd 0 0 rd rd rd rd 0 erd 0 erd 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte 10th byte 711 712 Table A.2 Instruction Codes (cont) Instruction SHAR Mnemonic SHAR.B Rd SHAR.B #2, Rd SHAR.W Rd SHAR.W #2, Rd SHAR.L ERd SHAR.L #2, ERd SHLL SHLL.B Rd SHLL.B #2, Rd SHLL.W Rd SHLL.W #2, Rd SHLL.L ERd SHLL.L #2, ERd SHLR SHLR.B Rd SHLR.B #2, Rd SHLR.W Rd SHLR.W #2, Rd SHLR.L ERd SHLR.L #2, ERd SLEEP STC SLEEP STC.B CCR,Rd STC.B EXR,Rd STC.W CCR,@ERd STC.W EXR,@ERd Instruction Format Size B B W W L L B B W W L L B B W W L L -- B B W W 1st byte 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 2nd byte 8 C 9 D B F 0 4 1 5 3 7 0 4 1 5 3 7 8 0 1 4 4 4 4 4 4 4 4 rd rd rd rd 0 erd 0 erd rd rd rd rd 0 erd 0 erd rd rd rd rd 0 erd 0 erd 0 rd rd 0 1 0 1 0 1 0 1 6 6 6 6 7 7 6 6 9 9 F F 8 8 D D 1 erd 1 erd 1 erd 1 erd 0 erd 0 erd 1 erd 1 erd 0 0 0 0 0 0 0 0 6 6 B B disp disp A A 0 0 disp disp 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte 10th byte STC.W CCR,@(d:16,ERd) W STC.W EXR,@(d:16,ERd) W STC.W CCR,@(d:32,ERd) W STC.W EXR,@(d:32,ERd) W STC.W CCR,@-ERd STC.W EXR,@-ERd W W Table A.2 Instruction Codes (cont) Instruction STC Mnemonic STC.W CCR,@aa:16 STC.W EXR,@aa:16 STC.W CCR,@aa:32 STC.W EXR,@aa:32 STM STM.L(ERn-ERn+1), @-SP STM.L (ERn-ERn+2), @-SP STM.L (ERn-ERn+3), @-SP STMAC STMAC MACH,ERd STMAC MACL,ERd SUB SUB.B Rs,Rd SUB.W #xx:16,Rd SUB.W Rs,Rd SUB.L #xx:32,ERd SUB.L ERs,ERd SUBS SUBS #1,ERd SUBS #2,ERd SUBS #4,ERd SUBX SUBX #xx:8,Rd SUBX Rs,Rd TAS TRAPA XOR TAS @ERd TRAPA #x:2 XOR.B #xx:8,Rd XOR.B Rs,Rd XOR.W #xx:16,Rd XOR.W Rs,Rd XOR.L #xx:32,ERd XOR.L ERs,ERd Instruction Format Size W W W W L L L L L B W W L L L L L B B B -- B B W W L L 1 7 1 7 1 1 1 1 B 1 0 5 D 1 7 6 7 0 8 9 9 A A B B B rd E 1 7 rd 5 9 5 A 1 rs 3 rs 3 rd rd rd 0 erd 0 erd 0 erd 0 erd IMM rs E 00 IMM IMM rs 5 rs 5 F rd rd rd 0 erd 0 6 5 IMM 0 ers 0 erd IMM rd 0 0 7 B 0 erd C IMM IMM 1st byte 0 0 0 0 0 0 0 1 1 1 1 1 1 1 2nd byte 4 4 4 4 1 2 3 0 1 0 1 0 0 0 3rd byte 6 6 6 6 6 6 6 B B B B D D D 4th byte 8 8 A A F F F 0 0 0 0 0 ern 0 ern 0 ern 5th byte abs abs abs abs 6th byte 7th byte 8th byte 9th byte 10th byte Cannot be used in the H8S/2345 Series 1 ers 0 erd 0 8 9 713 714 Table A.2 Instruction Codes (cont) Instruction XORC Mnemonic XORC #xx:8,CCR XORC #xx:8,EXR Instruction Format Size B B 1st byte 0 0 5 1 4 2nd byte IMM 1 0 5 IMM 3rd byte 4th byte 5th byte 6th byte 7th byte 8th byte 9th byte 10th byte Note: * Bit 7 of the 4th byte of the MOV.L ERs, @(d:32,ERd) instruction can be either 1 or 0. Legend IMM: abs: disp: rs, rd, rn: ers, erd, ern, erm: Immediate data (2, 3, 8, 16, or 32 bits) Absolute address (8, 16, 24, or 32 bits) Displacement (8, 16, or 32 bits) Register field (4 bits specifying an 8-bit or 16-bit register. The symbols rs, rd, and rn correspond to operand symbols Rs, Rd,and Rn.) Register field (3 bits specifying an address register or 32-bit register. The symbols ers, erd, ern, and erm correspond to operand symbols ERs, ERd, ERn, and ERm.) The register fields specify general registers as follows. Address Register 32-Bit Register Register Field 000 001 * * * 111 General Register ER0 ER1 * * * ER7 16-Bit Register Register Field 0000 0001 * * * 0111 1000 1001 * * * 1111 General Register R0 R1 * * * R7 E0 E1 * * * E7 8-Bit Register Register Field 0000 0001 * * * 0111 1000 1001 * * * 1111 General Register R0H R1H * * * R7H R0L R1L * * * R7L A.3 Table A.3 Operation Code Map (1) Instruction when most significant bit of BH is 0. 2nd byte BH BL Instruction when most significant bit of BH is 1. Instruction code 1st byte AH AL AL 3 ORC XORC XOR MOV.B AND Table A.3(2) SUB ANDC OR LDC ADD MOV CMP 4 5 6 8 7 9 A B C D AH 0 1 2 E ADDX SUBX F 0 NOP Operation Code Map 1 Table A.3(2) LDC Table STC * * A.3(2) STMAC LDMAC Table Table Table A.3(2) A.3(2) A.3(2) Table A.3(2) Table A.3(2) Table A.3(2) Table A.3(2) Table A.3(2) Table A.3(2) Table A.3 shows the operation code map. 2 3 BLS DIVXU OR MOV Table A.3(2) XOR AND BST MOV BTST RTS BSR RTE TRAPA Table A.3(2) JMP BCC BCS BNE BEQ BVC BVS BPL BMI BGE BSR MOV EEPMOV Table A.3(3) BLT BGT JSR BLE 4 BRA BRN BHI 5 MULXU DIVXU MULXU 6 BIST BXOR BAND BOR BLD BIXOR BIAND BIOR BILD ADD ADDX CMP SUBX OR XOR AND MOV BSET BNOT BCLR 7 Table A.3(2) Table A.3(2) 8 9 A B C D E F Note: * Cannot be used in the H8S/2345 Series. 715 716 Table A.3 Operation Code Map (2) Instruction code 1st byte AH AL 2nd byte BH BL BH AH AL 01 0A 0B 0F 10 11 12 13 17 1A 1B 1F 58 6A 79 7A 0 MOV INC ADDS DAA SHLL SHLR ROTXL ROTXR NOT DEC SUBS DAS BRA MOV MOV MOV 1 LDM 2 3 STM 4 LDC STC 5 6 MAC* 7 8 SLEEP 9 A CLRMAC * B C Table A.3(3) ADD D Table A.3(3) E TAS F Table A.3(3) INC INC ADDS MOV INC INC SHLL SHLR ROTXL ROTXR NOT EXTU SHLL SHLR ROTXL ROTXR EXTU SHAL SHAR ROTL ROTR NEG NEG SHAL SHAR ROTL ROTR EXTS SUB SHAL SHAR ROTL ROTR EXTS DEC DEC SUBS CMP DEC DEC BRN Table A.3(4) ADD ADD BHI MOV CMP CMP BLS BCC BCS BNE BEQ BVC MOV BVS BPL MOV BMI BGE MOVTPE* BLT BGT BLE Table * A.3(4) MOVFPE SUB SUB OR OR XOR XOR AND AND Note: * Cannot be used in the H8S/2345 Series. Table A.3 Operation Code Map (3) Instruction code 1st byte AH AL 2nd byte BH BL 3rd byte CH CL 4th byte DH DL Instruction when most significant bit of DH is 0. Instruction when most significant bit of DH is 1. CL AH AL BH BL CH 0 MULXS 1 2 MULXS 3 4 5 6 7 8 9 A B C D E F 01C05 01D05 01F06 7Cr06 *1 7Cr07 *1 7Dr06 *1 7Dr07 *1 7Eaa6 *2 7Eaa7 *2 7Faa6 *2 7Faa7 *2 DIVXS DIVXS OR BTST BTST BXOR BAND BLD BOR BIXOR BIAND BILD BIOR BST BIST XOR AND BSET BSET BNOT BNOT BCLR BCLR BTST BTST BSET BSET BNOT BNOT BCLR BCLR BXOR BAND BLD BOR BIXOR BIAND BILD BIOR BST BIST Notes: 1. r is the register specification field. 2. aa is the absolute address specification. 717 718 Table A.3 Operation Code Map (4) Instruction code 1st byte AH AL 2nd byte BH BL 3rd byte CH CL 4th byte DH DL 5th byte EH EL 6th byte FH FL Instruction when most significant bit of FH is 0. Instruction when most significant bit of FH is 1. EL AHALBHBLCHCLDHDLEH 0 1 2 3 BTST 4 5 6 7 8 9 A B C D E F 6A10aaaa6* 6A10aaaa7* 6A18aaaa6* BSET 6A18aaaa7* BNOT BCLR BOR BXOR BAND BLD BIOR BIXOR BIAND BILD BST BIST Instruction code 1st byte AH AL 2nd byte BH BL 3rd byte CH CL 4th byte DH DL 5th byte EH EL 6th byte FH FL 7th byte GH GL 8th byte HH HL Instruction when most significant bit of HH is 0. Instruction when most significant bit of HH is 1. GL AHALBHBL ... FHFLGH 0 1 2 3 BTST 4 5 6 7 8 9 A B C D E F 6A30aaaaaaaa6* 6A30aaaaaaaa7* 6A38aaaaaaaa6* BSET 6A38aaaaaaaa7* Note: * aa is the absolute address specification. BNOT BCLR BOR BXOR BAND BLD BIOR BIXOR BIAND BILD BST BIST A.4 Number of States Required for Instruction Execution The tables in this section can be used to calculate the number of states required for instruction execution by the CPU. Table A.5 indicates the number of instruction fetch, data read/write, and other cycles occurring in each instruction. Table A.4 indicates the number of states required for each cycle. The number of states required for execution of an instruction can be calculated from these two tables as follows: Execution states = I x SI + J x SJ + K x SK + L xS L + M x SM + N x SN Examples: Advanced mode, program code and stack located in external memory, on-chip supporting modules accessed in two states with 8-bit bus width, external devices accessed in three states with one wait state and 16-bit bus width. 1. BSET #0, @FFFFC7:8 From table A.5: I = L = 2, J = K = M = N = 0 From table A.4: S I = 4, SL = 2 Number of states required for execution = 2 x 4 + 2 x 2 = 12 2. JSR @@30 From table A.5: I = J = K = 2, L = M = N = 0 From table A.4: S I = SJ = SK = 4 Number of states required for execution = 2 x 4 + 2 x 4 + 2 x 4 = 24 719 Table A.4 Number of States per Cycle Access Conditions On-Chip Supporting Module External Device 8-Bit Bus 16-Bit Bus Cycle Instruction fetch SI On-Chip 8-Bit Memory Bus 1 4 16-Bit Bus 2 2-State 3-State 2-State 3-State Access Access Access Access 4 6 + 2m 2 3+m Branch address read SJ Stack operation Byte data access Word data access Internal operation SK SL SM SN 1 2 4 1 1 2 4 1 3+m 6 + 2m 1 1 1 Legend m: Number of wait states inserted into external device access 720 Table A.5 Number of Cycles in Instruction Execution Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access M Internal Operation N Instruction ADD Mnemonic ADD.B #xx:8,Rd ADD.B Rs,Rd ADD.W #xx:16,Rd ADD.W Rs,Rd ADD.L #xx:32,ERd ADD.L ERs,ERd I 1 1 2 1 3 1 1 1 1 1 1 2 1 3 2 1 2 1 2 2 3 4 2 2 2 2 2 2 2 2 2 2 2 J K L ADDS ADDX ADDS #1/2/4,ERd ADDX #xx:8,Rd ADDX Rs,Rd AND AND.B #xx:8,Rd AND.B Rs,Rd AND.W #xx:16,Rd AND.W Rs,Rd AND.L #xx:32,ERd AND.L ERs,ERd ANDC ANDC #xx:8,CCR ANDC #xx:8,EXR BAND BAND #xx:3,Rd BAND #xx:3,@ERd BAND #xx:3,@aa:8 BAND #xx:3,@aa:16 BAND #xx:3,@aa:32 1 1 1 1 Bcc BRA d:8 (BT d:8) BRN d:8 (BF d:8) BHI d:8 BLS d:8 BCC d:8 (BHS d:8) BCS d:8 (BLO d:8) BNE d:8 BEQ d:8 BVC d:8 BVS d:8 BPL d:8 721 Table A.5 Number of Cycles in Instruction Execution (cont) Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access M Internal Operation N Instruction Bcc Mnemonic BMI d:8 BGE d:8 BLT d:8 BGT d:8 BLE d:8 BRA d:16 (BT d:16) BRN d:16 (BF d:16) BHI d:16 BLS d:16 BCC d:16 (BHS d:16) BCS d:16 (BLO d:16) BNE d:16 BEQ d:16 BVC d:16 BVS d:16 BPL d:16 BMI d:16 BGE d:16 BLT d:16 BGT d:16 BLE d:16 I 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 3 4 1 2 2 3 4 J K L 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 BCLR BCLR #xx:3,Rd BCLR #xx:3,@ERd BCLR #xx:3,@aa:8 BCLR #xx:3,@aa:16 BCLR #xx:3,@aa:32 BCLR Rn,Rd BCLR Rn,@ERd BCLR Rn,@aa:8 BCLR Rn,@aa:16 BCLR Rn,@aa:32 2 2 2 2 2 2 2 2 722 Table A.5 Number of Cycles in Instruction Execution (cont) Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access M Internal Operation N Instruction BIAND Mnemonic BIAND #xx:3,Rd BIAND #xx:3,@ERd BIAND #xx:3,@aa:8 BIAND #xx:3,@aa:16 BIAND #xx:3,@aa:32 I 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 J K L 1 1 1 1 BILD BILD #xx:3,Rd BILD #xx:3,@ERd BILD #xx:3,@aa:8 BILD #xx:3,@aa:16 BILD #xx:3,@aa:32 1 1 1 1 BIOR BIOR #xx:8,Rd BIOR #xx:8,@ERd BIOR #xx:8,@aa:8 BIOR #xx:8,@aa:16 BIOR #xx:8,@aa:32 1 1 1 1 BIST BIST #xx:3,Rd BIST #xx:3,@ERd BIST #xx:3,@aa:8 BIST #xx:3,@aa:16 BIST #xx:3,@aa:32 2 2 2 2 BIXOR BIXOR #xx:3,Rd BIXOR #xx:3,@ERd BIXOR #xx:3,@aa:8 BIXOR #xx:3,@aa:16 BIXOR #xx:3,@aa:32 1 1 1 1 BLD BLD #xx:3,Rd BLD #xx:3,@ERd BLD #xx:3,@aa:8 BLD #xx:3,@aa:16 BLD #xx:3,@aa:32 1 1 1 1 723 Table A.5 Number of Cycles in Instruction Execution (cont) Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access M Internal Operation N Instruction BNOT Mnemonic BNOT #xx:3,Rd BNOT #xx:3,@ERd BNOT #xx:3,@aa:8 BNOT #xx:3,@aa:16 BNOT #xx:3,@aa:32 BNOT Rn,Rd BNOT Rn,@ERd BNOT Rn,@aa:8 BNOT Rn,@aa:16 BNOT Rn,@aa:32 I 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 2 2 1 2 2 3 4 J K L 2 2 2 2 2 2 2 2 BOR BOR #xx:3,Rd BOR #xx:3,@ERd BOR #xx:3,@aa:8 BOR #xx:3,@aa:16 BOR #xx:3,@aa:32 1 1 1 1 BSET BSET #xx:3,Rd BSET #xx:3,@ERd BSET #xx:3,@aa:8 BSET #xx:3,@aa:16 BSET #xx:3,@aa:32 BSET Rn,Rd BSET Rn,@ERd BSET Rn,@aa:8 BSET Rn,@aa:16 BSET Rn,@aa:32 2 2 2 2 2 2 2 2 2 2 1 BSR BSR d:8 BSR d:16 BST BST #xx:3,Rd BST #xx:3,@ERd BST #xx:3,@aa:8 BST #xx:3,@aa:16 BST #xx:3,@aa:32 2 2 2 2 724 Table A.5 Number of Cycles in Instruction Execution (cont) Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access M Internal Operation N Instruction BTST Mnemonic BTST #xx:3,Rd BTST #xx:3,@ERd BTST #xx:3,@aa:8 BTST #xx:3,@aa:16 BTST #xx:3,@aa:32 BTST Rn,Rd BTST Rn,@ERd BTST Rn,@aa:8 BTST Rn,@aa:16 BTST Rn,@aa:32 I 1 2 2 3 4 1 2 2 3 4 1 2 2 3 4 J K L 1 1 1 1 1 1 1 1 BXOR BXOR #xx:3,Rd BXOR #xx:3,@ERd BXOR #xx:3,@aa:8 BXOR #xx:3,@aa:16 BXOR #xx:3,@aa:32 1 1 1 1 CLRMAC CMP CLRMAC CMP.B #xx:8,Rd CMP.B Rs,Rd CMP.W #xx:16,Rd CMP.W Rs,Rd CMP.L #xx:32,ERd CMP.L ERs,ERd Cannot be used in the H8S/2345 Series 1 1 2 1 3 1 1 1 1 1 1 2 2 1 1 11 19 11 19 DAA DAS DEC DAA Rd DAS Rd DEC.B Rd DEC.W #1/2,Rd DEC.L #1/2,ERd DIVXS DIVXS.B Rs,Rd DIVXS.W Rs,ERd DIVXU DIVXU.B Rs,Rd DIVXU.W Rs,ERd 725 Table A.5 Number of Cycles in Instruction Execution (cont) Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access M Internal Operation N Instruction EEPMOV Mnemonic EEPMOV.B EEPMOV.W I 2 2 1 1 1 1 1 1 1 2 2 2 2 2 2 1 2 1 1 2 2 3 3 5 5 2 2 3 3 4 4 J K L 2n+2*2 2n+2*2 EXTS EXTS.W Rd EXTS.L ERd EXTU EXTU.W Rd EXTU.L ERd INC INC.B Rd INC.W #1/2,Rd INC.L #1/2,ERd JMP JMP @ERn JMP @aa:24 JMP @@aa:8 1 2 2 2 2 2 1 1 JSR JSR @ERn JSR @aa:24 JSR @@aa:8 LDC LDC #xx:8,CCR LDC #xx:8,EXR LDC Rs,CCR LDC Rs,EXR LDC @ERs,CCR LDC @ERs,EXR LDC @(d:16,ERs),CCR LDC @(d:16,ERs),EXR LDC @(d:32,ERs),CCR LDC @(d:32,ERs),EXR LDC @ERs+,CCR LDC @ERs+,EXR LDC @aa:16,CCR LDC @aa:16,EXR LDC @aa:32,CCR LDC @aa:32,EXR 1 1 1 1 1 1 1 1 1 1 1 1 1 1 726 Table A.5 Number of Cycles in Instruction Execution (cont) Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access M Internal Operation N 1 1 1 Instruction LDM Mnemonic LDM.L @SP+, (ERn-ERn+1) LDM.L @SP+, (ERn-ERn+2) LDM.L @SP+, (ERn-ERn+3) I 2 2 2 J K 4 6 8 L LDMAC LDMAC ERs,MACH LDMAC ERs,MACL Cannot be used in the H8S/2345 Series MAC MOV MAC @ERn+,@ERm+ MOV.B #xx:8,Rd MOV.B Rs,Rd MOV.B @ERs,Rd MOV.B @(d:16,ERs),Rd MOV.B @(d:32,ERs),Rd MOV.B @ERs+,Rd MOV.B @aa:8,Rd MOV.B @aa:16,Rd MOV.B @aa:32,Rd MOV.B Rs,@ERd MOV.B Rs,@(d:16,ERd) MOV.B Rs,@(d:32,ERd) MOV.B Rs,@-ERd MOV.B Rs,@aa:8 MOV.B Rs,@aa:16 MOV.B Rs,@aa:32 MOV.W #xx:16,Rd MOV.W Rs,Rd MOV.W @ERs,Rd MOV.W @(d:16,ERs),Rd MOV.W @(d:32,ERs),Rd MOV.W @ERs+,Rd MOV.W @aa:16,Rd MOV.W @aa:32,Rd MOV.W Rs,@ERd Cannot be used in the H8S/2345 Series 1 1 1 2 4 1 1 2 3 1 2 4 1 1 2 3 2 1 1 2 4 1 2 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 727 Table A.5 Number of Cycles in Instruction Execution (cont) Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access M 1 1 1 1 1 1 Internal Operation N Instruction MOV Mnemonic MOV.W Rs,@(d:16,ERd) MOV.W Rs,@(d:32,ERd) MOV.W Rs,@-ERd MOV.W Rs,@aa:16 MOV.W Rs,@aa:32 MOV.L #xx:32,ERd MOV.L ERs,ERd MOV.L @ERs,ERd MOV.L @(d:16,ERs),ERd MOV.L @(d:32,ERs),ERd MOV.L @ERs+,ERd MOV.L @aa:16,ERd MOV.L @aa:32,ERd MOV.L ERs,@ERd MOV.L ERs,@(d:16,ERd) MOV.L ERs,@(d:32,ERd) MOV.L ERs,@-ERd MOV.L ERs,@aa:16 MOV.L ERs,@aa:32 I 2 4 1 2 3 3 1 2 3 5 2 3 4 2 3 5 2 3 4 J K L 2 2 2 2 2 2 2 2 2 2 2 2 1 1 MOVFPE MOVTPE MULXS MOVFPE @:aa:16,Rd MOVTPE Rs,@:aa:16 MULXS.B Rs,Rd MULXS.W Rs,ERd Can not be used in the H8S/2345 Series 2 2 1 1 1 1 1 1 1 1 1 11 19 11 19 MULXU MULXU.B Rs,Rd MULXU.W Rs,ERd NEG NEG.B Rd NEG.W Rd NEG.L ERd NOP NOT NOP NOT.B Rd NOT.W Rd NOT.L ERd 728 Table A.5 Number of Cycles in Instruction Execution (cont) Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access M Internal Operation N Instruction OR Mnemonic OR.B #xx:8,Rd OR.B Rs,Rd OR.W #xx:16,Rd OR.W Rs,Rd OR.L #xx:32,ERd OR.L ERs,ERd I 1 1 2 1 3 2 1 2 1 2 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 J K L ORC ORC #xx:8,CCR ORC #xx:8,EXR POP POP.W Rn POP.L ERn 1 2 1 2 1 1 1 1 PUSH PUSH.W Rn PUSH.L ERn ROTL ROTL.B Rd ROTL.B #2,Rd ROTL.W Rd ROTL.W #2,Rd ROTL.L ERd ROTL.L #2,ERd ROTR ROTR.B Rd ROTR.B #2,Rd ROTR.W Rd ROTR.W #2,Rd ROTR.L ERd ROTR.L #2,ERd ROTXL ROTXL.B Rd ROTXL.B #2,Rd ROTXL.W Rd ROTXL.W #2,Rd ROTXL.L ERd ROTXL.L #2,ERd 729 Table A.5 Number of Cycles in Instruction Execution (cont) Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access M Internal Operation N Instruction ROTXR Mnemonic ROTXR.B Rd ROTXR.B #2,Rd ROTXR.W Rd ROTXR.W #2,Rd ROTXR.L ERd ROTXR.L #2,ERd I 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 J K L RTE RTS SHAL RTE RTS SHAL.B Rd SHAL.B #2,Rd SHAL.W Rd SHAL.W #2,Rd SHAL.L ERd SHAL.L #2,ERd 2/3*1 2 1 1 SHAR SHAR.B Rd SHAR.B #2,Rd SHAR.W Rd SHAR.W #2,Rd SHAR.L ERd SHAR.L #2,ERd SHLL SHLL.B Rd SHLL.B #2,Rd SHLL.W Rd SHLL.W #2,Rd SHLL.L ERd SHLL.L #2,ERd SHLR SHLR.B Rd SHLR.B #2,Rd SHLR.W Rd SHLR.W #2,Rd SHLR.L ERd SHLR.L #2,ERd SLEEP SLEEP 1 730 Table A.5 Number of Cycles in Instruction Execution (cont) Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access M Internal Operation N Instruction STC Mnemonic STC.B CCR,Rd STC.B EXR,Rd STC.W CCR,@ERd STC.W EXR,@ERd I 1 1 2 2 J K L 1 1 1 1 1 1 1 1 1 1 1 1 4 6 8 1 1 1 1 1 STC.W CCR,@(d:16,ERd) 3 STC.W EXR,@(d:16,ERd) 3 STC.W CCR,@(d:32,ERd) 5 STC.W EXR,@(d:32,ERd) 5 STC.W CCR,@-ERd STC.W EXR,@-ERd STC.W CCR,@aa:16 STC.W EXR,@aa:16 STC.W CCR,@aa:32 STC.W EXR,@aa:32 STM STM.L (ERn-ERn+1), @-SP STM.L (ERn-ERn+2), @-SP STM.L (ERn-ERn+3), @-SP STMAC STMAC MACH,ERd STMAC MACL,ERd SUB SUB.B Rs,Rd SUB.W #xx:16,Rd SUB.W Rs,Rd SUB.L #xx:32,ERd SUB.L ERs,ERd SUBS SUBX SUBS #1/2/4,ERd SUBX #xx:8,Rd SUBX Rs,Rd TAS TRAPA TAS @ERd TRAPA #x:2 Advanced 1 2 1 3 1 1 1 1 2 2 2 2/3* 1 2 2 3 3 4 4 2 2 2 Cannot be used in the H8S/2345 Series 2 2 731 Table A.5 Number of Cycles in Instruction Execution (cont) Branch Byte Instruction Address Stack Data Fetch Read Operation Access Word Data Access M Internal Operation N Instruction XOR Mnemonic XOR.B #xx:8,Rd XOR.B Rs,Rd XOR.W #xx:16,Rd XOR.W Rs,Rd XOR.L #xx:32,ERd XOR.L ERs,ERd I 1 1 2 1 3 2 1 2 J K L XORC XORC #xx:8,CCR XORC #xx:8,EXR Notes: 1. 2 when EXR is invalid, 3 when EXR is valid. 2. When n bytes of data are transferred. 732 A.5 Bus States During Instruction Execution Table A.6 indicates the types of cycles that occur during instruction execution by the CPU. See table A.4 for the number of states per cycle. How to Read the Table: Order of execution Instruction JMP@aa:24 1 R:W 2nd 2 3 4 5 6 7 8 Internal operation R:W EA 1 state End of instruction Read effective address (word-size read) No read or write Read 2nd word of current instruction (word-size read) Legend R:B R:W W:B W:W :M 2nd 3rd 4th 5th NEXT EA VEC Byte-size read Word-size read Byte-size write Word-size write Transfer of the bus is not performed immediately after this cycle Address of 2nd word (3rd and 4th bytes) Address of 3rd word (5th and 6th bytes) Address of 4th word (7th and 8th bytes) Address of 5th word (9th and 10th bytes) Address of next instruction Effective address Vector address 733 Figure A.1 shows timing waveforms for the address bus and the RD, HWR, and LWR signals during execution of the above instruction with an 8-bit bus, using three-state access with no wait states. o Address bus RD HWR, LWR High level R:W 2nd Fetching 3rd byte of instruction Fetching 4th byte of instruction Internal operation R:W EA Fetching 1nd byte of instruction at jump address Fetching 2nd byte of instruction at jump address Figure A.1 Address Bus, RD, HWR, and LWR Timing (8-Bit Bus, Three-State Access, No Wait States) 734 Table A.6 Instruction Execution Cycles Instruction ADD.B #xx:8,Rd ADD.B Rs,Rd ADD.W #xx:16,Rd ADD.W Rs,Rd ADD.L #xx:32,ERd ADD.L ERs,ERd ADDS #1/2/4,ERd ADDX #xx:8,Rd ADDX Rs,Rd AND.B #xx:8,Rd AND.B Rs,Rd AND.W #xx:16,Rd AND.W Rs,Rd AND.L #xx:32,ERd AND.L ERs,ERd ANDC #xx:8,CCR ANDC #xx:8,EXR BAND #xx:3,Rd BAND #xx:3,@ERd BAND #xx:3,@aa:8 BAND #xx:3,@aa:16 BAND #xx:3,@aa:32 BRA d:8 (BT d:8) BRN d:8 (BF d:8) BHI d:8 BLS d:8 BCC d:8 (BHS d:8) BCS d:8 (BLO d:8) BNE d:8 BEQ d:8 BVC d:8 BVS d:8 BPL d:8 BMI d:8 BGE d:8 BLT d:8 BGT d:8 1 R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT 2 3 4 5 6 7 8 9 R:W NEXT R:W 3rd R:W NEXT R:W NEXT R:W 3rd R:W NEXT R:W NEXT R:B EA R:B EA R:W 3rd R:W 3rd R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W NEXT 735 736 Table A.6 Instruction Execution Cycles (cont) Instruction BLE d:8 BRA d:16 (BT d:16) BRN d:16 (BF d:16) BHI d:16 BLS d:16 BCC d:16 (BHS d:16) BCS d:16 (BLO d:16) BNE d:16 BEQ d:16 BVC d:16 BVS d:16 BPL d:16 BMI d:16 BGE d:16 BLT d:16 BGT d:16 BLE d:16 BCLR #xx:3,Rd BCLR #xx:3,@ERd BCLR #xx:3,@aa:8 BCLR #xx:3,@aa:16 1 R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd 2 R:W EA Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state Internal operation, 1 state R:B:M EA R:B:M EA R:W 3rd 3 R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA R:W EA 4 5 6 7 8 9 R:W:M NEXT W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA Table A.6 Instruction Execution Cycles (cont) Instruction BCLR #xx:3,@aa:32 BCLR Rn,Rd BCLR Rn,@ERd BCLR Rn,@aa:8 BCLR Rn,@aa:16 BCLR Rn,@aa:32 BIAND #xx:3,Rd BIAND #xx:3,@ERd BIAND #xx:3,@aa:8 BIAND #xx:3,@aa:16 BIAND #xx:3,@aa:32 BILD #xx:3,Rd BILD #xx:3,@ERd BILD #xx:3,@aa:8 BILD #xx:3,@aa:16 BILD #xx:3,@aa:32 BIOR #xx:3,Rd BIOR #xx:3,@ERd BIOR #xx:3,@aa:8 BIOR #xx:3,@aa:16 BIOR #xx:3,@aa:32 BIST #xx:3,Rd BIST #xx:3,@ERd BIST #xx:3,@aa:8 BIST #xx:3,@aa:16 BIST #xx:3,@aa:32 BIXOR #xx:3,Rd BIXOR #xx:3,@ERd BIXOR #xx:3,@aa:8 BIXOR #xx:3,@aa:16 BIXOR #xx:3,@aa:32 BLD #xx:3,Rd BLD #xx:3,@ERd BLD #xx:3,@aa:8 BLD #xx:3,@aa:16 BLD #xx:3,@aa:32 BNOT #xx:3,Rd 1 R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT 2 R:W 3rd R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd 3 R:W 4th R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th 4 R:B:M EA 5 6 R:W:M NEXT W:B EA 7 8 9 W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT 737 738 Table A.6 Instruction Execution Cycles (cont) Instruction BNOT #xx:3,@ERd BNOT #xx:3,@aa:8 BNOT #xx:3,@aa:16 BNOT #xx:3,@aa:32 BNOT Rn,Rd BNOT Rn,@ERd BNOT Rn,@aa:8 BNOT Rn,@aa:16 BNOT Rn,@aa:32 BOR #xx:3,Rd BOR #xx:3,@ERd BOR #xx:3,@aa:8 BOR #xx:3,@aa:16 BOR #xx:3,@aa:32 BSET #xx:3,Rd BSET #xx:3,@ERd BSET #xx:3,@aa:8 BSET #xx:3,@aa:16 BSET #xx:3,@aa:32 BSET Rn,Rd BSET Rn,@ERd BSET Rn,@aa:8 BSET Rn,@aa:16 BSET Rn,@aa:32 BSR d:8 BSR d:16 BST #xx:3,Rd BST #xx:3,@ERd BST #xx:3,@aa:8 BST #xx:3,@aa:16 BST #xx:3,@aa:32 BTST #xx:3,Rd BTST #xx:3,@ERd 1 R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd 2 R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:B EA R:B EA R:W 3rd R:W 3rd R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:W EA Internal operation, 1 state R:B:M EA R:B:M EA R:W 3rd R:W 3rd R:B EA 3 R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th 4 5 6 W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA 7 8 9 R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W 4th R:B EA R:W:M NEXT R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th W:W:M stack (H) R:W EA W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA W:W stack (L) W:W:M stack (H) W:W stack (L) R:W:M NEXT R:W:M NEXT R:B:M EA R:W 4th R:W:M NEXT W:B EA W:B EA R:W:M NEXT W:B EA R:B:M EA R:W:M NEXT W:B EA Table A.6 Instruction Execution Cycles (cont) Instruction BTST #xx:3,@aa:8 BTST #xx:3,@aa:16 BTST #xx:3,@aa:32 BTST Rn,Rd BTST Rn,@ERd BTST Rn,@aa:8 BTST Rn,@aa:16 BTST Rn,@aa:32 BXOR #xx:3,Rd BXOR #xx:3,@ERd BXOR #xx:3,@aa:8 BXOR #xx:3,@aa:16 BXOR #xx:3,@aa:32 CLRMAC CMP.B #xx:8,Rd CMP.B Rs,Rd CMP.W #xx:16,Rd CMP.W Rs,Rd CMP.L #xx:32,ERd CMP.L ERs,ERd DAA Rd DAS Rd DEC.B Rd DEC.W #1/2,Rd DEC.L #1/2,ERd DIVXS.B Rs,Rd DIVXS.W Rs,ERd DIVXU.B Rs,Rd DIVXU.W Rs,ERd EEPMOV.B EEPMOV.W EXTS.W Rd EXTS.L ERd EXTU.W Rd EXTU.L ERd INC.B Rd 1 2 3 R:W 2nd R:B EA R:W:M NEXT R:W 2nd R:W 3rd R:B EA R:W 2nd R:W 3rd R:W 4th R:W NEXT R:W 2nd R:B EA R:W:M NEXT R:W 2nd R:B EA R:W:M NEXT R:W 2nd R:W 3rd R:B EA R:W 2nd R:W 3rd R:W 4th R:W NEXT R:W 2nd R:B EA R:W:M NEXT R:W 2nd R:B EA R:W:M NEXT R:W 2nd R:W 3rd R:B EA R:W 2nd R:W 3rd R:W 4th Cannot be used in the H8S/2345 Series R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT 4 5 6 7 8 9 R:W:M NEXT R:B EA R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W:M NEXT R:B EA R:W:M NEXT R:W NEXT R:W 3rd R:W NEXT R:W NEXT Internal operation, 11 states R:W NEXT Internal operation, 19 states Internal operation, 11 states Internal operation, 19 states R:B EAd*1 R:B EAs*2 W:B EAd*2 R:B EAs*1 R:B EAd*1 R:B EAs*2 W:B EAd*2 R:B EAs*1 Repeated n times*2 R:W NEXT R:W NEXT 739 740 Table A.6 Instruction Execution Cycles (cont) Instruction INC.W #1/2,Rd INC.L #1/2,ERd JMP @ERn JMP @aa:24 JMP @@aa:8 R:W NEXT JSR @ERn R:W NEXT JSR @aa:24 R:W 2nd JSR @@aa:8 LDC #xx:8,CCR LDC #xx:8,EXR LDC Rs,CCR LDC Rs,EXR LDC @ERs,CCR LDC @ERs,EXR LDC @(d:16,ERs),CCR LDC @(d:16,ERs),EXR LDC @(d:32,ERs),CCR LDC @(d:32,ERs),EXR LDC @ERs+,CCR LDC @ERs+,EXR LDC @aa:16,CCR LDC @aa:16,EXR LDC @aa:32,CCR LDC @aa:32,EXR LDM.L @SP+, (ERn-ERn+1) R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W 2nd R:W:M aa:8 R:W NEXT R:W aa:8 W:W:M stack (H) W:W stack (L) R:W EA Internal operation, R:W EA 1 state W:W:M stack (H) W:W stack (L) R:W EA W:W:M stack (H) W:W stack (L) R:W:M aa:8 R:W aa:8 Internal operation, R:W EA 1 state 1 R:W NEXT R:W NEXT R:W NEXT R:W 2nd 2 3 4 5 6 7 8 9 R:W EA Internal operation, R:W EA 1 state R:W EA R:W EA R:W NEXT R:W NEXT R:W 4th R:W 4th Internal operation, 1 state R:W NEXT Internal operation, 1 state R:W 3rd R:W NEXT R:W 3rd R:W NEXT R:W 3rd R:W 4th R:W 3rd R:W 4th R:W:M NEXT Internal operation, 1 state R:W NEXT R:W NEXT R:W 3rd R:W 3rd R:W 3rd R:W 3rd R:W NEXT R:W EA R:W EA R:W 5th R:W 5th R:W EA R:W EA R:W NEXT R:W NEXT R:W EA R:W EA R:W EA R:W EA R:W NEXT R:W EA R:W NEXT R:W EA R:W:M stack (H)*3 R:W stack (L)*3 Table A.6 Instruction Execution Cycles (cont) Instruction LDM.L @SP+,(ERn-ERn+2) LDM.L @SP+,(ERn-ERn+3) LDMAC ERs,MACH LDMAC ERs,MACL MAC @ERn+,@ERm+ MOV.B #xx:8,Rd MOV.B Rs,Rd MOV.B @ERs,Rd MOV.B @(d:16,ERs),Rd MOV.B @(d:32,ERs),Rd MOV.B @ERs+,Rd MOV.B @aa:8,Rd MOV.B @aa:16,Rd MOV.B @aa:32,Rd MOV.B Rs,@ERd MOV.B Rs,@(d:16,ERd) MOV.B Rs,@(d:32,ERd) MOV.B Rs,@-ERd MOV.B Rs,@aa:8 MOV.B Rs,@aa:16 MOV.B Rs,@aa:32 MOV.W #xx:16,Rd MOV.W Rs,Rd MOV.W @ERs,Rd MOV.W @(d:16,ERs),Rd MOV.W @(d:32,ERs),Rd MOV.W @ERs+, Rd MOV.W @aa:16,Rd MOV.W @aa:32,Rd MOV.W Rs,@ERd 3 4 5 Internal operation, R:W:M stack (H)*3 R:W stack (L)*3 1 state R:W 2nd R:W NEXT Internal operation, R:W:M stack (H)*3 R:W stack (L)*3 1 state Cannot be used in the H8S/2345 Series 1 R:W 2nd 2 R:W NEXT 6 7 8 9 R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:B EA R:W NEXT R:W 3rd Internal operation, 1 state R:B EA R:W NEXT R:W 3rd W:B EA R:W NEXT R:W 3rd Internal operation, 1 state W:B EA R:W NEXT R:W 3rd R:W NEXT R:W EA R:W NEXT R:W 3rd Internal operation, 1 state R:W NEXT R:W 3rd W:W EA R:B EA R:W 4th R:B EA R:W NEXT R:B EA R:B EA R:W NEXT W:B EA R:W 4th W:B EA R:B EA R:W NEXT W:B EA W:B EA R:W NEXT W:B EA R:W EA R:W 4th R:W EA R:W EA R:W NEXT R:W NEXT R:W EA R:B EA 741 742 Table A.6 Instruction Execution Cycles (cont) Instruction MOV.W Rs,@(d:16,ERd) MOV.W Rs,@(d:32,ERd) MOV.W Rs,@-ERd MOV.W Rs,@aa:16 MOV.W Rs,@aa:32 MOV.L #xx:32,ERd MOV.L ERs,ERd MOV.L @ERs,ERd MOV.L @(d:16,ERs),ERd MOV.L @(d:32,ERs),ERd MOV.L @ERs+,ERd MOV.L @aa:16,ERd MOV.L @aa:32,ERd MOV.L ERs,@ERd MOV.L ERs,@(d:16,ERd) MOV.L ERs,@(d:32,ERd) MOV.L ERs,@-ERd MOV.L ERs,@aa:16 MOV.L ERs,@aa:32 MOVFPE @aa:16,Rd MOVTPE Rs,@aa:16 MULXS.B Rs,Rd MULXS.W Rs,ERd MULXU.B Rs,Rd MULXU.W Rs,ERd NEG.B Rd NEG.W Rd NEG.L ERd NOP NOT.B Rd NOT.W Rd NOT.L ERd OR.B #xx:8,Rd OR.B Rs,Rd 1 R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W 2nd R:W 2nd 2 R:W NEXT R:W 3rd Internal operation, 1 state R:W NEXT R:W 3rd R:W 3rd R:W:M NEXT R:W:M 3rd R:W:M 3rd R:W:M NEXT 3 W:W EA R:E 4th W:W EA W:W EA R:W NEXT R:W NEXT 4 R:W NEXT 5 W:W EA 6 7 8 9 W:W EA R:W:M EA R:W NEXT R:W:M 4th Internal operation, 1 state R:W 2nd R:W:M 3rd R:W NEXT R:W 2nd R:W:M 3rd R:W 4th R:W 2nd R:W:M NEXT W:W:M EA R:W 2nd R:W:M 3rd R:W NEXT R:W 2nd R:W:M 3rd R:W:M 4th R:W 2nd R:W:M NEXT Internal operation, 1 state R:W 2nd R:W:M 3rd R:W NEXT R:W 2nd R:W:M 3rd R:W 4th Cannot be used in the H8S/2345 Series R:W 2nd R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W EA+2 R:W:M EA R:W 5th R:W:M EA R:W:M EA R:W NEXT W:W EA+2 W:W:M EA R:W 5th W:W:M EA W:W:M EA R:W NEXT R:W EA+2 R:W NEXT R:W EA+2 R:W EA+2 R:W:M EA W:W EA+2 R:W NEXT W:W EA+2 W:W EA+2 W:W:M EA R:W:M EA R:W EA+2 R:W EA+2 W:W:M EA W:W EA+2 W:W EA+2 R:W NEXT Internal operation, 11 states R:W NEXT Internal operation, 19 states Internal operation, 11 states Internal operation, 19 states Table A.6 Instruction Execution Cycles (cont) Instruction OR.W #xx:16,Rd OR.W Rs,Rd OR.L #xx:32,ERd OR.L ERs,ERd ORC #xx:8,CCR ORC #xx:8,EXR POP.W Rn POP.L ERn PUSH.W Rn PUSH.L ERn ROTL.B Rd ROTL.B #2,Rd ROTL.W Rd ROTL.W #2,Rd ROTL.L ERd ROTL.L #2,ERd ROTR.B Rd ROTR.B #2,Rd ROTR.W Rd ROTR.W #2,Rd ROTR.L ERd ROTR.L #2,ERd ROTXL.B Rd ROTXL.B #2,Rd ROTXL.W Rd ROTXL.W #2,Rd ROTXL.L ERd ROTXL.L #2,ERd ROTXR.B Rd ROTXR.B #2,Rd ROTXR.W Rd ROTXR.W #2,Rd ROTXR.L ERd 1 R:W 2nd R:W NEXT R:W 2nd R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT 2 R:W NEXT R:W 3rd R:W NEXT 3 4 5 6 7 8 9 R:W NEXT R:W NEXT Internal operation, R:W EA 1 state R:W:M NEXT Internal operation, R:W:M EA 1 state Internal operation, W:W EA 1 state R:W:M NEXT Internal operation, W:W:M EA 1 state R:W EA+2 W:W EA+2 743 744 Table A.6 Instruction Execution Cycles (cont) Instruction ROTXR.L #2,ERd RTE RTS SHAL.B Rd SHAL.B #2,Rd SHAL.W Rd SHAL.W #2,Rd SHAL.L ERd SHAL.L #2,ERd SHAR.B Rd SHAR.B #2,Rd SHAR.W Rd SHAR.W #2,Rd SHAR.L ERd SHAR.L #2,ERd SHLL.B Rd SHLL.B #2,Rd SHLL.W Rd SHLL.W #2,Rd SHLL.L ERd SHLL.L #2,ERd SHLR.B Rd SHLR.B #2,Rd SHLR.W Rd SHLR.W #2,Rd SHLR.L ERd SHLR.L #2,ERd SLEEP STC CCR,Rd STC EXR,Rd STC CCR,@ERd STC EXR,@ERd STC CCR,@(d:16,ERd) 1 R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W 2nd R:W 2nd 2 3 4 R:W stack (L) 5 6 7 8 9 R:W stack (EXR) R:W stack (H) R:W:M stack (H) R:W stack (L) Internal operation, R:W*4 1 state Internal operation, R:W*4 1 state Internal operation:M R:W NEXT R:W NEXT R:W 3rd W:W EA W:W EA R:W NEXT W:W EA Table A.6 Instruction Execution Cycles (cont) Instruction STC EXR,@(d:16,ERd) STC CCR,@(d:32,ERd) STC EXR,@(d:32,ERd) STC CCR,@-ERd STC EXR,@-ERd STC CCR,@aa:16 STC EXR,@aa:16 STC CCR,@aa:32 STC EXR,@aa:32 STM.L(ERn-ERn+1),@-SP STM.L(ERn-ERn+2),@-SP STM.L(ERn-ERn+3),@-SP STMAC MACH,ERd STMAC MACL,ERd SUB.B Rs,Rd SUB.W #xx:16,Rd SUB.W Rs,Rd SUB.L #xx:32,ERd SUB.L ERs,ERd SUBS #1/2/4,ERd SUBX #xx:8,Rd SUBX Rs,Rd TAS @ERd TRAPA #x:2 XOR.B #xx8,Rd XOR.B Rs,Rd XOR.W #xx:16,Rd XOR.W Rs,Rd XOR.L #xx:32,ERd 3 R:W NEXT R:W 4th R:W 4th Internal operation, 1 state R:W 2nd R:W NEXT Internal operation, 1 state R:W 2nd R:W 3rd R:W NEXT R:W 2nd R:W 3rd R:W NEXT R:W 2nd R:W 3rd R:W 4th R:W 2nd R:W 3rd R:W 4th R:W 2nd R:W:M NEXT Internal operation, 1 state R:W 2nd R:W:M NEXT Internal operation, 1 state R:W 2nd R:W:M NEXT Internal operation, 1 state Cannot be used in the H8S/2345 Series R:W NEXT R:W 2nd R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W NEXT R:W NEXT R:W 2nd R:W NEXT R:W 2nd 1 R:W 2nd R:W 2nd R:W 2nd R:W 2nd 2 R:W 3rd R:W 3rd R:W 3rd R:W NEXT 4 W:W EA R:W 5th R:W 5th W:W EA W:W EA W:W EA W:W EA R:W NEXT W:W EA R:W NEXT W:W EA W:W:M stack (H)*3 W:W stack (L)*3 W:W:M stack (H)*3 W:W stack (L)*3 W:W:M stack (H)*3 W:W stack (L)*3 5 R:W NEXT R:W NEXT 6 W:W EA W:W EA 7 8 9 R:W NEXT R:W 3rd R:W NEXT R:W NEXT R:B:M EA Internal operation, W:W stack (L) 1 state W:B EA W:W stack (H) W:W stack (EXR) R:W:M VEC R:W VEC+2 Internal operation, R:W*7 1 state R:W NEXT R:W 3rd R:W NEXT 745 746 Table A.6 Instruction Execution Cycles (cont) Instruction XOR.L ERs,ERd XORC #xx:8,CCR XORC #xx:8,EXR Reset exception handling Interrupt exception handling 1 R:W 2nd R:W NEXT R:W 2nd R:W:M VEC R:W*6 2 R:W NEXT R:W NEXT R:W VEC+2 3 4 5 6 7 8 9 Internal operation, R:W*5 1 state Internal operation, W:W stack (L) W:W stack (H) 1 state W:W stack (EXR) R:W:M VEC R:W VEC+2 Internal operation, R:W*7 1 state Notes: 1. EAs is the contents of ER5. EAd is the contents of ER6. 2. EAs is the contents of ER5. EAd is the contents of ER6. Both registers are incremented by 1 after execution of the instruction. n is the initial value of R4L or R4. If n = 0, these bus cycles are not executed. 3. Repeated two times to save or restore two registers, three times for three registers, or four times for four registers. 4. Start address after return. 5. Start address of the program. 6. Prefetch address, equal to two plus the PC value pushed onto the stack. In recovery from sleep mode or software standby mode the read operation is replaced by an internal operation. 7. Start address of the interrupt-handling routine. A.6 Condition Code Modification This section indicates the effect of each CPU instruction on the condition code. The notation used in the table is defined below. m= 31 for longword operands 15 for word operands 7 for byte operands Si Di Ri Dn -- The i-th bit of the source operand The i-th bit of the destination operand The i-th bit of the result The specified bit in the destination operand Not affected Modified according to the result of the instruction (see definition) 0 1 * Z' C' Always cleared to 0 Always set to 1 Undetermined (no guaranteed value) Z flag before instruction execution C flag before instruction execution 747 Table A.7 Instruction ADD Condition Code Modification H N Z V C Definition H = Sm-4 * Dm-4 + Dm-4 * Rm-4 + Sm-4 * Rm-4 N = Rm Z = Rm * Rm-1 * ...... * R0 V = Sm * Dm * Rm + Sm * Dm * Rm C = Sm * Dm + Dm * Rm + Sm * Rm ADDS ADDX ---------- H = Sm-4 * Dm-4 + Dm-4 * Rm-4 + Sm-4 * Rm-4 N = Rm Z = Z' * Rm * ...... * R0 V = Sm * Dm * Rm + Sm * Dm * Rm C = Sm * Dm + Dm * Rm + Sm * Rm AND -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 ANDC Stores the corresponding bits of the result. No flags change when the operand is EXR. BAND Bcc BCLR BIAND BILD BIOR BIST BIXOR BLD BNOT BOR BSET BSR BST BTST BXOR CLRMAC -------- ---------- ---------- -------- -------- -------- ---------- -------- -------- ---------- -------- ---------- ---------- ---------- ---- ---- C = C' * Dn C = C' * Dn C = Dn C = C' + Dn C = C' * Dn + C' * Dn C = Dn C = C' + Dn Z = Dn C = C' * Dn + C' * Dn Cannot be used in the H8S/2345 Series -------- 748 Table A.7 Instruction CMP Condition Code Modification (cont) H N Z V C Definition H = Sm-4 * Dm-4 + Dm-4 * Rm-4 + Sm-4 * Rm-4 N = Rm Z = Rm * Rm-1 * ...... * R0 V = Sm * Dm * Rm + Sm * Dm * Rm C = Sm * Dm + Dm * Rm + Sm * Rm DAA * * N = Rm Z = Rm * Rm-1 * ...... * R0 C: decimal arithmetic carry DAS * * N = Rm Z = Rm * Rm-1 * ...... * R0 C: decimal arithmetic borrow DEC -- -- N = Rm Z = Rm * Rm-1 * ...... * R0 V = Dm * Rm DIVXS -- ---- N = Sm * Dm + Sm * Dm Z = Sm * Sm-1 * ...... * S0 N = Sm Z = Sm * Sm-1 * ...... * S0 DIVXU -- ---- EEPMOV EXTS ---------- -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 Z = Rm * Rm-1 * ...... * R0 N = Rm Z = Rm * Rm-1 * ...... * R0 V = Dm * Rm EXTU INC --0 -- 0 -- -- JMP JSR LDC ---------- ---------- Stores the corresponding bits of the result. No flags change when the operand is EXR. LDM LDMAC MAC ---------- Cannnot be used in the H8S/2345 Series 749 Table A.7 Instruction MOV Condition Code Modification (cont) H -- N Z V 0 C -- Definition N = Rm Z = Rm * Rm-1 * ...... * R0 MOVFPE MOVTPE MULXS -- ---- Can not be used in the H8S/2345 Series N = R2m Z = R2m * R2m-1 * ...... * R0 MULXU NEG ---------- H = Dm-4 + Rm-4 N = Rm Z = Rm * Rm-1 * ...... * R0 V = Dm * Rm C = Dm + Rm NOP NOT ---------- -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 OR -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 ORC Stores the corresponding bits of the result. No flags change when the operand is EXR. POP -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 PUSH -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 ROTL -- 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = Dm (1-bit shift) or C = Dm-1 (2-bit shift) ROTR -- 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = D0 (1-bit shift) or C = D1 (2-bit shift) 750 Table A.7 Instruction ROTXL Condition Code Modification (cont) H -- N Z V 0 C Definition N = Rm Z = Rm * Rm-1 * ...... * R0 C = Dm (1-bit shift) or C = Dm-1 (2-bit shift) ROTXR -- 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = D0 (1-bit shift) or C = D1 (2-bit shift) RTE RTS SHAL ---------- -- Stores the corresponding bits of the result. N = Rm Z = Rm * Rm-1 * ...... * R0 V = Dm * Dm-1 + Dm * Dm-1 (1-bit shift) V = Dm * Dm-1 * Dm-2 * Dm * Dm-1 * Dm-2 (2-bit shift) C = Dm (1-bit shift) or C = Dm-1 (2-bit shift) SHAR -- 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = D0 (1-bit shift) or C = D1 (2-bit shift) SHLL -- 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = Dm (1-bit shift) or C = Dm-1 (2-bit shift) SHLR --0 0 N = Rm Z = Rm * Rm-1 * ...... * R0 C = D0 (1-bit shift) or C = D1 (2-bit shift) SLEEP STC STM STMAC ---------- ---------- ---------- Cannot be used in the H8S/2345 Series 751 Table A.7 Instruction SUB Condition Code Modification (cont) H N Z V C Definition H = Sm-4 * Dm-4 + Dm-4 * Rm-4 + Sm-4 * Rm-4 N = Rm Z = Rm * Rm-1 * ...... * R0 V = Sm * Dm * Rm + Sm * Dm * Rm C = Sm * Dm + Dm * Rm + Sm * Rm SUBS SUBX ---------- H = Sm-4 * Dm-4 + Dm-4 * Rm-4 + Sm-4 * Rm-4 N = Rm Z = Z' * Rm * ...... * R0 V = Sm * Dm * Rm + Sm * Dm * Rm C = Sm * Dm + Dm * Rm + Sm * Rm TAS -- 0 -- N = Dm Z = Dm * Dm-1 * ...... * D0 TRAPA XOR ---------- -- 0 -- N = Rm Z = Rm * Rm-1 * ...... * R0 XORC Stores the corresponding bits of the result. No flags change when the operand is EXR. 752 Appendix B Internal I/O Register B.1 Addresses Bit 6 SM0 Bit 5 DM1 Bit 4 DM0 Bit 3 MD1 Bit 2 MD0 Bit 1 DTS Bit 0 Sz Module Name DTC Data Bus Width 16/32* bit Address Register (low) Name Bit 7 H'F800 to H'FBFF MRA SAR SM1 MRB DAR CHNE DISEL -- -- -- -- -- -- CRA CRB H'FE80 H'FE81 H'FE82 H'FE83 H'FE84 H'FE85 H'FE86 H'FE87 H'FE88 H'FE89 H'FE8A H'FE8B H'FE8C H'FE8D H'FE8E H'FE8F TCR3 TMDR3 CCLR2 -- CCLR1 -- IOB2 IOD2 -- -- CCLR0 BFB IOB1 IOD1 -- -- CKEG1 CKEG0 TPSC2 BFA IOB0 IOD0 TCIEV TCFV MD3 IOA3 IOC3 TGIED TGFD MD2 IOA2 IOC2 TGIEC TGFC TPSC1 MD1 IOA1 IOC1 TGIEB TGFB TPSC0 MD0 IOA0 IOC0 TGIEA TGFA TPU3 16 bit TIOR3H IOB3 TIOR3L TIER3 TSR3 TCNT3 IOD3 TTGE -- TGR3A TGR3B TGR3C TGR3D Note: * Located in on-chip RAM. The bus width is 32 bits when the DTC accesses this area as register information, and 16 bits otherwise. 753 Address Register (low) Name Bit 7 H'FE90 H'FE91 H'FE92 H'FE94 H'FE95 H'FE96 H'FE97 H'FE98 H'FE99 H'FE9A H'FE9B H'FEA0 H'FEA1 H'FEA2 H'FEA4 H'FEA5 H'FEA6 H'FEA7 H'FEA8 H'FEA9 H'FEAA H'FEAB H'FEB0 H'FEB1 H'FEB2 H'FEB9 H'FEBA H'FEBB H'FEBC H'FEBD H'FEBE H'FEBF P1DDR P2DDR P3DDR PADDR PBDDR PCDDR PDDDR PEDDR PFDDR TGR5B TGR5A TCR5 TMDR5 TIOR5 TIER5 TSR5 TCNT5 -- -- IOB3 TTGE TCFD TGR4B TGR4A TCR4 TMDR4 TIOR4 TIER4 TSR4 TCNT4 -- -- IOB3 TTGE TCFD Bit 6 CCLR1 -- IOB2 -- -- Bit 5 CCLR0 -- IOB1 TCIEU TCFU Bit 4 Bit 3 Bit 2 Bit 1 TPSC1 MD1 IOA1 TGIEB TGFB Bit 0 TPSC0 MD0 IOA0 TGIEA TGFA Module Name TPU4 Data Bus Width 16 bit CKEG1 CKEG0 TPSC2 -- IOB0 TCIEV TCFV MD3 IOA3 -- -- MD2 IOA2 -- -- CCLR1 -- IOB2 -- -- CCLR0 -- IOB1 TCIEU TCFU CKEG1 CKEG0 TPSC2 -- IOB0 TCIEV TCFV MD3 IOA3 -- -- MD2 IOA2 -- -- TPSC1 MD1 IOA1 TGIEB TGFB TPSC0 MD0 IOA0 TGIEA TGFA TPU5 16 bit P17DDR P16DDR P15DDR P14DDR P13DDR P12DDR P11DDR P10DDR P27DDR P26DDR P25DDR P24DDR P23DDR P22DDR P21DDR P20DDR -- -- -- -- P35DDR P34DDR P33DDR P32DDR P31DDR P30DDR -- -- PA3DDR PA2DDR PA1DDR PA0DDR Port 8 bit PB7DDR PB6DDR PB5DDR PB4DDR PB3DDR PB2DDR PB1DDR PB0DDR PC7DDR PC6DDR PC5DDR PC4DDR PC3DDR PC2DDR PC1DDR PC0DDR PD7DDR PD6DDR PD5DDR PD4DDR PD3DDR PD2DDR PD1DDR PD0DDR PE7DDR PE6DDR PE5DDR PE4DDR PE3DDR PE2DDR PE1DDR PE0DDR PF7DDR PF6DDR PF5DDR PF4DDR PF3DDR PF2DDR PF1DDR PF0DDR -- -- PG4DDR PG3DDR PG2DDR PG1DDR PG0DDR PGDDR -- 754 Address Register (low) Name Bit 7 H'FEC4 H'FEC5 H'FEC6 H'FEC7 H'FEC8 H'FEC9 H'FECA H'FECB H'FECC H'FECD H'FECE H'FED0 H'FED1 H'FED2 H'FED3 H'FED4 H'FED5 H'FEDB H'FF2C H'FF2D H'FF2E H'FF2F IPRA IPRB IPRC IPRD IPRE IPRF IPRG IPRH IPRI IPRJ IPRK -- -- -- -- -- -- -- -- -- -- -- Bit 6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 IPR6 ABW6 AST6 W70 W30 ICIS0 -- -- Bit 5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 IPR5 ABW5 AST5 W61 W21 Bit 4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 IPR4 ABW4 AST4 W60 W20 Bit 3 -- -- -- -- -- -- -- -- -- -- -- ABW3 AST3 W51 W11 BRSTS0 Bit 2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 IPR2 -- ABW2 AST2 W50 W10 -- -- RAMS Bit 1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 IPR1 -- ABW1 AST1 W41 W01 -- -- RAM1 Bit 0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 IPR0 -- ABW0 AST0 W40 W00 -- WAITE RAM0 Module Name Interrupt controller Data Bus Width 8 bit ABWCR ABW7 ASTCR WCRH WCRL BCRH BCRL AST7 W71 W31 ICIS1 BRLE Bus controller 8 bit BRSTRM BRSTS1 EAE -- -- -- -- -- RAMER -- ISCRH ISCRL IER ISR IRQ7SCB IRQ7SCA IRQ6SCB IRQ6SCA IRQ5SCB IRQ5SCA IRQ4SCB IRQ4SCA IRQ3SCB IRQ3SCA IRQ2SCB IRQ2SCA IRQ1SCB IRQ1SCA IRQ0SCB IRQ0SCA Interrupt controller 8 bit IRQ7E IRQ7F DTCE7 IRQ6E IRQ6F DTCE6 IRQ5E IRQ5F DTCE5 IRQ4E IRQ4F DTCE4 IRQ3E IRQ3F DTCE3 IRQ2E IRQ2F DTCE2 IRQ1E IRQ1F DTCE1 IRQ0E IRQ0F DTCE0 DTC 8 bit H'FF30 to DTCER H'FF34 H'FF37 H'FF38 H'FF39 H'FF3A H'FF3B H'FF3C H'FF3D H'FF42 H'FF44 H'FF45 DTVECR SWDTE DTVEC6 DTVEC5 DTVEC4 DTVEC3 DTVEC2 DTVEC1 DTVEC0 SBYCR SYSCR SCKCR MDCR SSBY -- STS2 -- STS1 INTM1 -- -- STS0 INTM0 -- -- OPE NMIEG -- -- -- -- SCK2 MDS2 -- -- SCK1 MDS1 -- RAME SCK0 MDS0 MSTP8 Power-down mode MCU Clock pulse generator MCU Power-down mode MCU Reserved 8 bit -- 8 bit 8 bit 8 bit 8 bit 8 bit PSTOP -- -- -- MSTPCRH MSTP15 MSTP14 MSTP13 MSTP12 MSTP11 MSTP10 MSTP9 MSTPCRL MSTP7 SYSCR2 Reserved Reserved MSTP6 MSTP5 MSTP4 MSTP3 MSTP2 MSTP1 MSTP0 -- -- -- -- -- -- -- -- -- FLSHE -- -- -- -- -- -- -- -- -- -- -- -- -- -- 755 Address Register (low) Name Bit 7 H'FF50 H'FF51 H'FF52 H'FF53 H'FF59 H'FF5A H'FF5B H'FF5C H'FF5D H'FF5E H'FF5F H'FF60 H'FF61 H'FF62 H'FF69 H'FF6A H'FF6B H'FF6C H'FF6D H'FF6E H'FF6F H'FF70 H'FF71 H'FF72 H'FF73 H'FF74 H'FF76 H'FF77 PORT1 PORT2 PORT3 PORT4 PORTA PORTB PORTC PORTD PORTE PORTF PORTG P1DR P2DR P3DR PADR PBDR PCDR PDDR PEDR PFDR PGDR PAPCR PBPCR PCPCR PDPCR PEPCR P3ODR PAODR P17 P27 -- P47 -- PB7 PC7 PD7 PE7 PF7 -- P17DR P27DR -- -- Bit 6 P16 P26 -- P46 -- PB6 PC6 PD6 PE6 PF6 -- P16DR P26DR -- -- Bit 5 P15 P25 P35 P45 -- PB5 PC5 PD5 PE5 PF5 -- P15DR P25DR P35DR -- Bit 4 P14 P24 P34 P44 -- PB4 PC4 PD4 PE4 PF4 PG4 P14DR P24DR P34DR -- Bit 3 P13 P23 P33 P43 PA3 PB3 PC3 PD3 PE3 PF3 PG3 P13DR P23DR P33DR Bit 2 P12 P22 P32 P42 PA2 PB2 PC2 PD2 PE2 PF2 PG2 P12DR P22DR P32DR Bit 1 P11 P21 P31 P41 PA1 PB1 PC1 PD1 PE1 PF1 PG1 P11DR P21DR P31DR Bit 0 P10 P20 P30 P40 PA0 PB0 PC0 PD0 PE0 PF0 PG0 P10DR P20DR P30DR Module Name Port Data Bus Width 8 bit PA3DR PA2DR PA1DR PA0DR PB7DR PB6DR PB5DR PB4DR PB3DR PB2DR PB1DR PB0DR PC7DR PC6DR PC5DR PC4DR PC3DR PC2DR PC1DR PC0DR PD7DR PD6DR PD5DR PD4DR PD3DR PD2DR PD1DR PD0DR PE7DR PE6DR PE5DR PE4DR PE3DR PE2DR PE1DR PE0DR PF7DR -- -- PF6DR -- -- PF5DR -- -- PF4DR PF3DR PF2DR PF1DR PF0DR PG4DR PG3DR PG2DR PG1DR PG0DR -- PA3PCR PA2PCR PA1PCR PA0PCR PB7PCR PB6PCR PB5PCR PB4PCR PB3PCR PB2PCR PB1PCR PB0PCR PC7PCR PC6PCR PC5PCR PC4PCR PC3PCR PC2PCR PC1PCR PC0PCR PD7PCR PD6PCR PD5PCR PD4PCR PD3PCR PD2PCR PD1PCR PD0PCR PE7PCR PE6PCR PE5PCR PE4PCR PE3PCR PE2PCR PE1PCR PE0PCR -- -- -- -- P35ODR P34ODR P33ODR P32ODR P31ODR P30ODR -- -- PA3ODR PA2ODR PA1ODR PA0ODR 756 Address Register (low) Name Bit 7 H'FF78 SMR0 C/A/ GM*1 H'FF79 H'FF7A H'FF7B H'FF7C BRR0 SCR0 TDR0 SSR0 TDRE TIE Bit 6 CHR Bit 5 PE Bit 4 O/E Bit 3 STOP Bit 2 MP Bit 1 CKS1 Bit 0 CKS0 Module Name SCI0, Smart card interface 0 Data Bus Width 8 bit RIE TE RE MPIE TEIE CKE1 CKE0 RDRF ORER FER/ ERS*2 PER TEND MPB MPBT H'FF7D H'FF7E H'FF80 RDR0 SCMR0 SMR1 -- C/A/ GM*1 -- CHR -- PE -- O/E SDIR STOP SINV MP -- CKS1 SMIF CKS0 SCI1, Smart card interface 1 TIE RIE TE RE MPIE TEIE CKE1 CKE0 8 bit H'FF81 H'FF82 H'FF83 H'FF84 BRR1 SCR1 TDR1 SSR1 TDRE RDRF ORER FER/ ERS*2 PER TEND MPB MPBT H'FF85 H'FF86 H'FF90 H'FF91 H'FF92 H'FF93 H"FF94 H'FF95 H'FF96 H'FF97 H'FF98 H'FF99 RDR1 SCMR1 -- -- AD8 AD0 AD8 AD0 AD8 AD0 AD8 AD0 ADIE -- AD7 -- AD7 -- AD7 -- AD7 -- ADST -- AD6 -- AD6 -- AD6 -- AD6 -- SCAN -- SDIR AD5 -- AD5 -- AD5 -- AD5 -- CKS -- SINV AD4 -- AD4 -- AD4 -- AD4 -- -- -- -- AD3 -- AD3 -- AD3 -- AD3 -- CH1 -- SMIF AD2 -- AD2 -- AD2 -- AD2 -- CH0 -- A/D converter 8 bit ADDRAH AD9 ADDRAL AD1 ADDRBH AD9 ADDRBL AD1 ADDRCH AD9 ADDRCL AD1 ADDRDH AD9 ADDRDL AD1 ADCSR ADCR ADF TRGS1 TRGS0 -- Notes: 1. Functions as C/A for SCI use, and as GM for smart card interface use. 2. Functions as FER for SCI use, and as ERS for smart card interface use. 757 Address Register (low) Name Bit 7 H'FFA4 H'FFA5 H'FFA6 H'FFB0 H'FFB1 H'FFB2 H'FFB3 H'FFB4 H'FFB5 H'FFB6 H'FFB7 H'FFB8 H'FFB9 H'FFBC (read) H'FFBD (read) H'FFBF (read) H'FFC0 H'FFC1 H'FFC8 H'FFC9 H'FFCA H'FFCB H'FFD0 H'FFD1 H'FFD2 H'FFD3 H'FFD4 H'FFD5 H'FFD6 H'FFD7 H'FFD8 H'FFD9 H'FFDA H'FFDB TGR0B TGR0A TSTR TSYR -- -- RSTCSR WOVF TCNT DADR0 DADR1 DACR TCR0 TCR1 TCSR0 TCSR1 TCORA0 TCORA1 TCORB0 TCORB1 TCNT0 TCNT1 TCSR OVF Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name D/A converter Data Bus Width 8 bit DAOE1 DAOE0 DAE CMIEB CMIEB CMFB CMFB CMIEA CMIEA CMFA CMFA OVIE OVIE OVF OVF -- CCLR1 CCLR1 ADTE -- -- CCLR0 CCLR0 OS3 OS3 -- CKS2 CKS2 OS2 OS2 -- CKS1 CKS1 OS1 OS1 -- CKS0 CKS0 OS0 OS0 8-bit timer channel 0, 1 16 bit WT/IT TME -- -- CKS2 CKS1 CKS0 WDT 16 bit RSTE RSTS -- -- -- -- -- -- -- SWE -- -- EB6 CCLR1 -- IOB2 IOD2 -- -- CST5 CST4 CST3 CST2 CST1 CST0 TPU 16 bit SYNC5 SYNC4 SYNC3 SYNC2 SYNC1 SYNC0 -- -- -- EB5 CCLR0 BFB IOB1 IOD1 -- -- -- -- -- EB4 EV -- -- EB3 PV -- -- EB2 E ESU EB9 EB1 TPSC1 MD1 IOA1 IOC1 TGIEB TGFB P PSU EB8 EB0 TPSC0 MD0 IOA0 IOC0 TGIEA TGFA TPU0 16 bit FLASH 8 bit FLMCR1 FWE FLMCR2 FLER EBR1 EBR2 TCR0 TMDR0 -- EB7 CCLR2 -- CKEG1 CKEG0 TPSC2 BFA IOB0 IOD0 TCIEV TCFV MD3 IOA3 IOC3 TGIED TGFD MD2 IOA2 IOC2 TGIEC TGFC TIOR0H IOB3 TIOR0L TIER0 TSR0 TCNT0 IOD3 TTGE -- 758 Address Register (low) Name Bit 7 H'FFDC H'FFDD H'FFDE H'FFDF H'FFE0 H'FFE1 H'FFE2 H'FFE4 H'FFE5 H'FFE6 H'FFE7 H'FFE8 H'FFE9 H'FFEA H'FFEB H'FFF0 H'FFF1 H'FFF2 H'FFF4 H'FFF5 H'FFF6 H'FFF7 H'FFF8 H'FFF9 H'FFFA H'FFFB TGR2B TGR2A TCR2 TMDR2 TIOR2 TIER2 TSR2 TCNT2 -- -- IOB3 TTGE TCFD TGR1B TGR1A TCR1 TMDR1 TIOR1 TIER1 TSR1 TCNT1 -- -- IOB3 TTGE TCFD TGR0D TGR0C Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Module Name TPU1 Data Bus Width 16 bit CCLR1 -- IOB2 -- -- CCLR0 -- IOB1 TCIEU TCFU CKEG1 CKEG0 TPSC2 -- IOB0 TCIEV TCFV MD3 IOA3 -- -- MD2 IOA2 -- -- TPSC1 MD1 IOA1 TGIEB TGFB TPSC0 MD0 IOA0 TGIEA TGFA CCLR1 -- IOB2 -- -- CCLR0 -- IOB1 TCIEU TCFU CKEG1 CKEG0 TPSC2 -- IOB0 TCIEV TCFV MD3 IOA3 -- -- MD2 IOA2 -- -- TPSC1 MD1 IOA1 TGIEB TGFB TPSC0 MD0 IOA0 TGIEA TGFA TPU2 16 bit 759 B.2 Functions H'F800--H'FBFF 5 DM1 -- 4 DM0 -- 3 MD1 -- 2 MD0 -- 1 DTS -- 0 Sz -- MRA--DTC Mode Register A Bit : 7 SM1 Initial value : Read/Write : -- 6 SM0 -- DTC Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined DTC Data Transfer Size 0 1 Byte-size transfer Word-size transfer DTC Transfer Mode Select 0 1 DTC Mode 0 0 1 1 0 1 Destination Address Mode 0 1 -- 0 1 Source Address Mode 0 1 -- 0 1 SAR is fixed SAR is incremented after a transfer (by +1 when Sz = 0; by +2 when Sz = 1) SAR is decremented after a transfer (by -1 when Sz = 0; by -2 when Sz = 1) DAR is fixed DAR is incremented after a transfer (by +1 when Sz = 0; by +2 when Sz = 1) DAR is decremented after a transfer (by -1 when Sz = 0; by -2 when Sz = 1) Normal mode Repeat mode Block transfer mode -- Destination side is repeat area or block area Source side is repeat area or block area 760 MRB--DTC Mode Register B Bit : 7 CHNE Initial value : Read/Write : -- 6 DISEL -- 5 -- -- 4 -- -- H'F800--H'FBFF 3 -- -- 2 -- -- 1 -- -- 0 -- -- DTC Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined Reserved Only 0 should be written to these bits DTC Interrupt Select 0 1 After a data transfer ends, the CPU interrupt is disabled unless the transfer counter is 0 After a data transfer ends, the CPU interrupt is enabled DTC Chain Transfer Enable 0 1 End of DTC data transfer DTC chain transfer SAR--DTC Source Address Register Bit : 23 22 21 20 19 H'F800--H'FBFF --------4 3 2 1 DTC 0 Initial value : Read/Write : Unde- Unde- Unde- Unde- Undefined fined fined fined fined Unde- Unde- Unde- Unde- Undefined fined fined fined fined -- -- -- -- -- -- -- -- -- -- Specifies transfer data source address DAR--DTC Destination Address Register Bit : 23 22 21 20 19 H'F800--H'FBFF --------4 3 2 1 DTC 0 Initial value : Read/Write : Unde- Unde- Unde- Unde- Undefined fined fined fined fined Unde- Unde- Unde- Unde- Undefined fined fined fined fined -- -- -- -- -- -- -- -- -- -- Specifies transfer data destination address 761 CRA--DTC Transfer Count Register A Bit : 15 14 13 12 11 10 9 8 H'F800--H'FBFF 7 6 5 4 3 2 1 DTC 0 Initial value : Read/Write : Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Undefined fined fined fined fined fined fined fined fined fined fined fined fined fined fined fined -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- CRAH CRAL Specifies the number of DTC data transfers CRB--DTC Transfer Count Register B Bit : 15 14 13 12 11 10 9 8 H'F800--H'FBFF 7 6 5 4 3 2 1 DTC 0 Initial value : Read/Write : Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Unde- Undefined fined fined fined fined fined fined fined fined fined fined fined fined fined fined fined -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Specifies the number of DTC block data transfers 762 TCR3--Timer Control Register 3 Bit : 7 CCLR2 Initial value : Read/Write : 0 R/W 6 CCLR1 0 R/W 5 CCLR0 0 R/W 4 0 R/W 3 0 H'FE80 2 TPSC2 0 R/W 1 TPSC1 0 R/W 0 TPSC0 0 R/W TPU3 CKEG1 CKEG0 R/W Timer Prescaler 0 0 0 1 1 0 1 1 0 0 1 1 0 1 Clock Edge 0 0 1 1 Counter Clear 0 0 0 1 1 0 1 TCNT clearing disabled TCNT cleared by TGRA compare match/input capture TCNT cleared by TGRB compare match/input capture TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation *1 TCNT clearing disabled TCNT cleared by TGRC compare match/input capture *2 TCNT cleared by TGRD compare match/input capture *2 TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation *1 Notes: 1. Synchronous operation setting is performed by setting the SYNC bit in TSYR to 1. 2. When TGRC or TGRD is used as a buffer register, TCNT is not cleared because the buffer register setting has priority, and compare match/input capture does not occur. -- Count at rising edge Count at falling edge Count at both edges Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input Internal clock: counts on o/1024 Internal clock: counts on o/256 Internal clock: counts on o/4096 1 0 0 1 1 0 1 763 TMDR3--Timer Mode Register 3 Bit : 7 -- Initial value : Read/Write : 1 -- 6 -- 1 -- 5 BFB 0 R/W 4 BFA 0 R/W H'FE81 3 MD3 0 R/W 2 MD2 0 R/W 1 MD1 0 R/W 0 MD0 0 R/W TPU3 Mode 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * * * Normal operation Reserved PWM mode 1 PWM mode 2 Phase counting mode 1 Phase counting mode 2 Phase counting mode 3 Phase counting mode 4 -- * : Don't care Notes: 1. MD3 is a reserved bit. In a write, it should always be written with 0. 2. Phase counting mode cannot be set for channels 0 and 3. In this case, 0 should always be written to MD2. Buffer Operation A 0 1 TGRA operates normally TGRA and TGRC used together for buffer operation Buffer Operation B 0 1 TGRB operates normally TGRB and TGRD used together for buffer operation 764 TIOR3H--Timer I/O Control Register 3H Bit : 7 IOB3 0 Read/Write : R/W 6 IOB2 0 R/W 5 IOB1 0 R/W 4 IOB0 0 R/W 3 IOA3 0 R/W 2 IOA2 0 R/W H'FE82 1 IOA1 0 R/W 0 IOA0 0 R/W TPU3 Initial value : TGR3A I/O Control 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR3A is input capture register Capture input source is TIOCA3 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT4 count-up/ source is channel count-down 4/count clock * : Don't care TGR3B I/O Control 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR3B is input capture register Capture input source is TIOCB3 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input source is channel 4/count clock Input capture at TCNT4 count-up/ count-down * : Don't care Note: 1. If bits TPSC2 to TPSC0 in TCR4 are set to B'000, and o/1 is used as the TCNT4 count clock, this setting will be invalid and input capture will not occur. TGR3B Output disabled is output compare Initial output is register 0 output TGR3A Output disabled is output compare Initial output is register 0 output 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 765 TIOR3L--Timer I/O Control Register 3L Bit : 7 IOD3 Initial value : Read/Write : 0 R/W 6 IOD2 0 R/W 5 IOD1 0 R/W 4 IOD0 0 R/W 3 IOC3 0 R/W 2 H'FE83 1 IOC1 0 R/W 0 IOC0 0 R/W TPU3 IOC2 0 R/W TRG3C I/O Control 0 0 0 0 TGR3C Output disabled is output 1 compare Initial output is 0 output 0 register 1 1 0 0 1 1 0 1 1 0 0 0 TGR3C is input 1 capture * register * Capture input source is TIOCC3 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT4 count-up/ source is channel count-down 4/count clock * : Don't care Note: When the BFA bit in TMDR3 is set to 1 and TGR3C is used as a buffer register, this setting is invalid and input capture/output compare is not generated. TGR3D I/O Control 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR3D is input capture register Capture input source is TIOCD3 pin Capture input source is channel 4/count clock Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Input capture at TCNT4 count-up/ count-down*1 * : Don't care Notes: When the BFB bit in TMDR3 is set to 1 and TGR3D is used as a buffer register, this setting is invalid and input capture/output compare is not generated. 1 When bits TPSC2 to TPSC0 in TCR4 are set to B'000 and o/1 is used as the TCNT4 count clock, this setting is invalid and input capture is not generated. Note: When TGRC or TGRD is designated for buffer operation, this setting is invalid and the register operates as a buffer register. TGR3D Output disabled is output compare Initial output is 0 0 output at compare match register output 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 1 * 766 TIER3--Timer Interrupt Enable Register 3 Bit : 7 TTGE Initial value : Read/Write : 0 R/W 6 -- 1 -- 5 -- 0 -- 4 TCIEV 0 R/W 3 TGIED 0 R/W H'FE84 2 TGIEC 0 R/W 1 TGIEB 0 R/W 0 TGIEA 0 R/W TPU3 TGR Interrupt Enable A 0 1 Interrupt requests (TGIA) by TGFA bit disabled Interrupt requests (TGIA) by TGFA bit enabled TGR Interrupt Enable B 0 1 Interrupt requests (TGIB) by TGFB bit disabled Interrupt requests (TGIB) by TGFB bit enabled TGR Interrupt Enable C 0 1 Interrupt requests (TGIC) by TGFC bit disabled Interrupt requests (TGIC) by TGFC bit enabled TGR Interrupt Enable D 0 1 Interrupt requests (TGID) by TGFD bit disabled Interrupt requests (TGID) by TGFD bit enabled Overflow Interrupt Enable 0 1 Interrupt requests (TCIV) by TCFV disabled Interrupt requests (TCIV) by TCFV enabled A/D Conversion Start Request Enable 0 1 A/D conversion start request generation disabled A/D conversion start request generation enabled 767 TSR3--Timer Status Register 3 Bit : 7 -- Initial value : Read/Write : 1 -- 6 -- 1 -- 5 -- 0 -- 4 TCFV 0 R/(W)* 3 TGFD 0 R/(W)* H'FE85 2 TGFC 0 R/(W)* 1 TGFB 0 R/(W)* 0 TGFA 0 R/(W)* TPU3 Input Capture/Output Compare Flag A 0 [Clearing condition] * When DTC is activated by TGIA interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFA after reading TGFA = 1 [Setting condition] * When TCNT=TGRA while TGRA is functioning as output compare register * When TCNT value is transferred to TGRA by input capture signal while TGRA is functioning as input capture register 1 Input Capture/Output Compare Flag B 0 [Clearing condition] * When DTC is activated by TGIB interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFB after reading TGFB = 1 [Setting condition] * When TCNT = TGRB while TGRB is functioning as output compare register * When TCNT value is transferred to TGRB by input capture signal while TGRB is functioning as input capture register 1 Input Capture/Output Compare Flag C 0 [Clearing condition] * When DTC is activated by TGIC interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFC after reading TGFC = 1 [Setting condition] * When TCNT = TGRC while TGRC is functioning as output compare register * When TCNT value is transferred to TGRC by input capture signal while TGRC is functioning as input capture register 1 Input Capture/Output Compare Flag D 0 [Clearing condition] * When DTC is activated by TGID interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFD after reading TGFD = 1 [Setting condition] * When TCNT = TGRD while TGRD is functioning as output compare register * When TCNT value is transferred to TGRD by input capture signal while TGRD is functioning as input capture register 1 Overflow Flag 0 1 [Clearing condition] When 0 is written to TCFV after reading TCFV = 1 [Setting condition] When the TCNT value overflows (changes from H'FFFF to H'0000 ) Note: * Can only be written with 0 for flag clearing. 768 TCNT3--Timer Counter 3 Bit : 15 0 14 0 13 0 12 0 11 0 10 0 9 0 H'FE86 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 TPU3 0 0 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Up-counter TGR3A--Timer General Register 3A TGR3B--Timer General Register 3B TGR3C--Timer General Register 3C TGR3D--Timer General Register 3D Bit : 15 1 14 1 13 1 12 1 11 1 10 1 9 1 H'FE88 H'FE8A H'FE8C H'FE8E 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 TPU3 TPU3 TPU3 TPU3 0 1 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W 769 TCR4--Timer Control Register 4 Bit : 7 -- Initial value : Read/Write : 0 -- 6 CCLR1 0 R/W 5 CCLR0 0 R/W 4 0 R/W 3 0 R/W H'FE90 2 TPSC2 0 R/W 1 TPSC1 0 R/W 0 TPSC0 0 R/W TPU4 CKEG1 CKEG0 Timer Prescaler 0 0 0 1 1 0 1 1 0 0 1 1 0 1 Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKC pin input Internal clock: counts on o/1024 Counts on TCNT5 overflow/underflow Note: This setting is ignored when channel 4 is in phase counting mode. Clock Edge 0 0 1 1 -- Count at rising edge Count at falling edge Count at both edges Counter Clear 0 0 1 1 0 1 Note: This setting is ignored when channel 4 is in phase counting mode. TCNT clearing disabled TCNT cleared by TGRA compare match/input capture TCNT cleared by TGRB compare match/input capture TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation* Note: * Synchronous operating setting is performed by setting the SYNC bit TSYR to 1. 770 TMDR4--Timer Mode Register 4 Bit : 7 -- Initial value : Read/Write : 1 -- 6 -- 1 -- 5 -- 0 -- 4 -- 0 -- H'FE91 3 MD3 0 R/W 2 MD2 0 R/W 1 MD1 0 R/W 0 MD0 0 R/W TPU4 Mode 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * * * Normal operation Reserved PWM mode 1 PWM mode 2 Phase counting mode 1 Phase counting mode 2 Phase counting mode 3 Phase counting mode 4 -- * : Don't care Notes: MD3 is a reserved bit. In a write, it should always be written with 0. 771 TIOR4--Timer I/O Control Register 4 Bit : 7 IOB3 Initial value : Read/Write : 0 R/W 6 IOB2 0 R/W 5 IOB1 0 R/W 4 IOB0 0 R/W 3 IOA3 0 R/W 2 H'FE92 1 IOA1 0 R/W 0 IOA0 0 R/W TPU4 IOA2 0 R/W TGR4A I/O Control 0 0 0 0 TGR4A Output disabled is output 1 compare Initial output is 0 output 0 register 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR4A is input capture register Capture input source is TIOCA4 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at generation of source is TGR3A TGR3A compare match/input compare match/ capture input capture * : Don't care TGR4B I/O Control 0 0 0 0 TGR4B Output disabled is output 1 compare Initial output is 0 output 0 register 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR4B is input capture register Capture input source is TIOCB4 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at generation of source is TGR3C TGR3C compare match/input compare match/ capture input capture * : Don't care 0 output at compare match 1 output at compare match Toggle output at compare match 1 0 output at compare match 1 output at compare match Toggle output at compare match 1 772 TIER4--Timer Interrupt Enable Register 4 Bit : 7 TTGE Initial value : Read/Write : 0 R/W 6 -- 1 -- 5 TCIEU 0 R/W 4 TCIEV 0 R/W 3 -- 0 -- H'FE94 2 -- 0 -- 1 TGIEB 0 R/W 0 TGIEA 0 R/W TGR Interrupt Enable A 0 1 TPU4 Interrupt requests (TGIA) by TGFA bit disabled Interrupt requests (TGIA) by TGFA bit enabled TGR Interrupt Enable B 0 1 Interrupt requests (TGIB) by TGFB bit disabled Interrupt requests (TGIB) by TGFB bit enabled Overflow Interrupt Enable 0 1 Interrupt requests (TCIV) by TCFV disabled Interrupt requests (TCIV) by TCFV enabled Underflow Interrupt Enable 0 1 Interrupt requests (TCIU) by TCFU disabled Interrupt requests (TCIU) by TCFU enabled A/D Conversion Start Request Enable 0 1 A/D conversion start request generation disabled A/D conversion start request generation enabled 773 TSR4--Timer Status Register 4 Bit : 7 TCFD Initial value : Read/Write : 1 R 6 -- 1 -- 5 TCFU 0 R/(W)* 4 TCFV 0 R/(W)* 3 -- 0 -- 2 -- 0 -- H'FE95 1 TGFB 0 R/(W)* 0 TGFA 0 R/(W)* TPU4 Input Capture/Output Compare Flag A 0 [Clearing condition] * When DTC is activated by TGIA interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFA after reading TGFA = 1 [Setting conditions] * When TCNT = TGRA while TGRA is functioning as output compare register * When TCNT value is transferred to TGRA by input capture signal while TGRA is functioning as input capture register 1 Input Capture/Output Compare Flag B 0 [Clearing condition] * When DTC is activated by TGIB interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFB after reading TGFB = 1 [Setting conditions] * When TCNT = TGRB while TGRB is functioning as output compare register * When TCNT value is transferred to TGRB by input capture signal while TGRB is functioning as input capture register 1 Overflow Flag 0 1 Underflow Flag 0 1 Count Direction Flag 0 1 TCNT counts down TCNT counts up [Clearing condition] When 0 is written to TCFU after reading TCFU = 1 [Setting conditions] When the TCNT value underflows (changes from H'0000 to H'FFFF) [Clearing condition] When 0 is written to TCFV after reading TCFV = 1 [Setting conditions] When the TCNT value overflows (changes from H'FFFF to H'0000 ) Note: * Can only be written with 0 for flag clearing. 774 TCNT4--Timer Counter 4 Bit : 15 0 14 0 13 0 12 0 11 0 10 0 9 0 H'FE96 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 TPU4 0 0 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Up/down-counter* Note: * This timer counter can be used as an up/down-counter only in phase counting mode or when performing overflow/underflow counting on another channel. In other cases it functions as an up-counter. TGR4A--Timer General Register 4A TGR4B--Timer General Register 4B Bit : 15 1 14 1 13 1 12 1 11 1 10 1 9 1 H'FE98 H'FE9A 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 TPU4 TPU4 0 1 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W 775 TCR5--Timer Control Register 5 Bit : 7 -- Initial value : Read/Write : 0 -- 6 CCLR1 0 R/W 5 CCLR0 0 R/W 4 0 R/W 3 0 R/W H'FEA0 2 TPSC2 0 R/W Time Prescaler 0 0 0 1 1 0 1 1 0 0 1 1 0 1 Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 TPU5 1 TPSC1 0 R/W 0 TPSC0 0 R/W CKEG1 CKEG0 External clock: counts on TCLKA pin input External clock: counts on TCLKC pin input Internal clock: counts on o/256 External clock: counts on TCLKD pin input Note: This setting is ignored when channel 5 is in phase counting mode. Clock Edge 0 0 1 1 -- Count at rising edge Count at falling edge Count at both edges Note: This setting is ignored when channel 5 is in phase counting mode. Counter Clear 0 0 1 1 0 1 TCNT clearing disabled TCNT cleared by TGRA compare match/input capture TCNT cleared by TGRB compare match/input capture TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation* Note: * Synchronous operating setting is performed by setting the SYNC bit TSYR to 1. 776 TMDR5--Timer Mode Register 5 Bit : 7 -- Initial value : Read/Write : 1 -- 6 -- 1 -- 5 -- 0 -- 4 -- 0 -- H'FEA1 3 MD3 0 R/W 2 MD2 0 R/W 1 MD1 0 R/W 0 MD0 0 R/W TPU5 Mode 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * * * Normal operation Reserved PWM mode 1 PWM mode 2 Phase counting mode 1 Phase counting mode 2 Phase counting mode 3 Phase counting mode 4 -- * : Don't care Notes: MD3 is a reserved bit. In a write, it should always be written with 0. 777 TIOR5--Timer I/O Control Register 5 Bit : 7 IOB3 Initial value : Read/Write : 0 R/W 6 IOB2 0 R/W 5 IOB1 0 R/W 4 IOB0 0 R/W 3 IOA3 0 R/W 2 H'FEA2 1 IOA1 0 R/W 0 IOA0 0 R/W TPU5 IOA2 0 R/W TGR5A I/O Control 0 0 0 0 TGR5A Output disabled is output 1 compare Initial output is 0 output 0 register 1 1 0 0 1 1 0 1 1 * 0 0 TGR5A is input 1 capture * register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at rising edge source is TIOCA5 Input capture at falling edge pin Input capture at both edges * : Don't care TGR5B I/O Control 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * 0 0 1 1 * TGR5B is input capture register Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Capture input Input capture at rising edge source is TIOCB5 Input capture at falling edge pin Input capture at both edges * : Don't care TGR5B Output disabled is output compare Initial output is 0 register output 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 0 output at compare match 1 output at compare match Toggle output at compare match 778 TIER5--Timer Interrupt Enable Register 5 Bit : 7 TTGE Initial value : Read/Write : 0 R/W 6 -- 1 -- 5 TCIEU 0 R/W 4 TCIEV 0 R/W 3 -- 0 -- H'FEA4 2 -- 0 -- 1 TGIEB 0 R/W 0 TGIEA 0 R/W TGR Interrupt Enable A 0 1 TPU5 Interrupt requests (TGIA) by TGFA bit disabled Interrupt requests (TGIA) by TGFA bit enabled TGR Interrupt Enable B 0 1 Interrupt requests (TGIB) by TGFB bit disabled Interrupt requests (TGIB) by TGFB bit enabled Overflow Interrupt Enable 0 1 Interrupt requests (TCIV) by TCFV disabled Interrupt requests (TCIV) by TCFV enabled Underflow Interrupt Enable 0 1 Interrupt requests (TCIU) by TCFU disabled Interrupt requests (TCIU) by TCFU enabled A/D Conversion Start Request Enable 0 1 A/D conversion start request generation disabled A/D conversion start request generation enabled 779 TSR5--Timer Status Register 5 Bit : 7 TCFD Initial value : Read/Write : 1 R 6 -- 1 -- 5 TCFU 0 R/(W)* 4 TCFV 0 R/(W)* 3 -- 0 -- 2 -- 0 -- H'FEA5 1 TGFB 0 R/(W)* 0 TGFA 0 R/(W)* TPU5 Input Capture/Output Compare Flag A 0 [Clearing condition] * When DTC is activated by TGIA interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFA after reading TGFA = 1 [Setting conditions] * When TCNT = TGRA while TGRA is functioning as output compare register * When TCNT value is transferred to TGRA by input capture signal while TGRA is functioning as input capture register 1 Input Capture/Output Compare Flag B 0 [Clearing condition] * When DTC is activated by TGIB interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFB after reading TGFB = 1 [Setting conditions] * When TCNT = TGRB while TGRB is functioning as output compare register * When TCNT value is transferred to TGRB by input capture signal while TGRB is functioning as input capture register 1 Overflow Flag 0 1 Underflow Flag 0 1 Count Direction Flag 0 1 TCNT counts down TCNT counts up [Clearing condition] When 0 is written to TCFU after reading TCFU = 1 [Setting conditions] When the TCNT value underflows (changes from H'0000 to H'FFFF) [Clearing condition] When 0 is written to TCFV after reading TCFV = 1 [Setting conditions] When the TCNT value overflows (changes from H'FFFF to H'0000 ) Note: * Can only be written with 0 for flag clearing. 780 TCNT5--Timer Counter 5 Bit : 15 0 14 0 13 0 12 0 11 0 10 0 9 0 8 0 H'FEA6 7 0 6 0 5 0 4 0 3 0 2 0 1 0 TPU5 0 0 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Up/down-counter* Note: * This timer counter can be used as an up/down-counter only in phase counting mode or when performing overflow/underflow counting on another channel. In other cases it functions as an up-counter. TGR5A--Timer General Register 5A TGR5B--Timer General Register 5B Bit : 15 1 14 1 13 1 12 1 11 1 10 1 9 1 8 1 H'FEA8 H'FEAA 7 1 6 1 5 1 4 1 3 1 2 1 1 1 TPU5 TPU5 0 1 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W P1DDR--Port 1 Data Direction Register Bit : 7 0 W 6 0 W 5 0 W 4 0 W H'FEB0 3 0 W 2 0 W 1 0 W Port 1 0 0 W P17DDR P16DDR P15DDR P14DDR P13DDR P12DDR P11DDR P10DDR Initial value : Read/Write : Specify input or output for individual port 1 pins 781 P2DDR--Port 2 Data Direction Register Bit : 7 0 W 6 0 W 5 0 W 4 0 W H'FEB1 3 0 W 2 0 W 1 0 W Port 2 0 0 W P27DDR P26DDR P25DDR P24DDR P23DDR P22DDR P21DDR P20DDR Initial value : Read/Write : Specify input or output for individual port 2 pins P3DDR--Port 3 Data Direction Register Bit : 7 -- Initial value : Read/Write : -- 6 -- -- 5 0 W 4 0 W H'FEB2 3 0 W 2 0 W 1 0 W Port 3 0 0 W P35DDR P34DDR P33DDR P32DDR P31DDR P30DDR Undefined Undefined Specify input or output for individual port 3 pins PADDR--Port A Data Direction Register Bit Initial value Read/Write : : : 7 -- -- 6 -- -- 5 -- -- 4 -- -- H'FEB9 3 0 W 2 0 W 1 0 W Port A 0 0 W PA3DDR PA2DDR PA1DDR PA0DDR Undefined Undefined Undefined Undefined Specify input or output for individual port A pins PBDDR--Port B Data Direction Register Bit Initial value Read/Write : : : 7 0 W 6 0 W 5 0 W 4 0 W H'FEBA 3 0 W 2 0 W 1 0 W Port B 0 0 W PB7DDR PB6DDR PB5DDR PB4DDR PB3DDR PB2DDR PB1DDR PB0DDR Specify input or output for individual port B pins 782 PCDDR--Port C Data Direction Register Bit Initial value Read/Write : : : 7 0 W 6 0 W 5 0 W 4 0 W H'FEBB 3 0 W 2 0 W 1 0 W Port C 0 0 W PC7DDR PC6DDR PC5DDR PC4DDR PC3DDR PC2DDR PC1DDR PC0DDR Specify input or output for individual port C pins PDDDR--Port D Data Direction Register Bit : 7 0 W 6 0 W 5 0 W 4 0 W H'FEBC 3 0 W 2 0 W 1 0 W Port D 0 0 W PD7DDR PD6DDR PD5DDR PD4DDR PD3DDR PD2DDR PD1DDR PD0DDR Initial value : Read/Write : Specify input or output for individual port D pins PEDDR--Port E Data Direction Register Bit : 7 0 W 6 0 W 5 0 W 4 0 W H'FEBD 3 0 W 2 0 W 1 0 W Port E 0 0 W PE7DDR PE6DDR PE5DDR PE4DDR PE3DDR PE2DDR PE1DDR PE0DDR Initial value : Read/Write : Specify input or output for individual port E pins 783 PFDDR--Port F Data Direction Register Bit : 7 6 5 4 H'FEBE 3 2 1 Port F 0 PF7DDR PF6DDR PF5DDR PF4DDR PF3DDR PF2DDR PF1DDR PF0DDR Modes 1, 2, 4 to 6 Initial value Read/Write Modes 3, 7 Initial value Read/Write : : 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W : : 1 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W Specify input or output for individual port F pins PGDDR--Port G Data Direction Register Bit Modes 1, 4, 5 Initial value Read/Write Initial value Read/Write : Undefined Undefined Undefined : -- -- -- 1 W 0 W : 7 -- 6 -- 5 -- 4 H'FEBF 3 2 1 Port G 0 PG4DDR PG3DDR PG2DDR PG1DDR PG0DDR 0 W 0 W 0 W 0 W 0 W 0 W 0 W 0 W Modes 2, 3, 6, 7 : Undefined Undefined Undefined : -- -- -- Specify input or output for individual port G pins 784 IPRA IPRB IPRC IPRD IPRE IPRF IPRG IPRH IPRI IPRJ IPRK Bit -- -- -- -- -- -- -- -- -- -- -- Interrupt Priority Register A Interrupt Priority Register B Interrupt Priority Register C Interrupt Priority Register D Interrupt Priority Register E Interrupt Priority Register F Interrupt Priority Register G Interrupt Priority Register H Interrupt Priority Register I Interrupt Priority Register J Interrupt Priority Register K : 7 -- 0 -- 6 IPR6 1 R/W 5 IPR5 1 R/W 4 IPR4 1 R/W H'FEC4 H'FEC5 H'FEC6 H'FEC7 H'FEC8 H'FEC9 H'FECA H'FECB H'FECC H'FECD H'FECE 3 -- 0 -- 2 IPR2 1 R/W Interrupt Controller Interrupt Controller Interrupt Controller Interrupt Controller Interrupt Controller Interrupt Controller Interrupt Controller Interrupt Controller Interrupt Controller Interrupt Controller Interrupt Controller 1 IPR1 1 R/W 0 IPR0 1 R/W Initial value : Read/Write : Set priority (levels 7 to 0) for interrupt sources Correspondence between Interrupt Sources and IPR Settings Bits Register 6 to 4 IPRA IPRB IPRC IPRD IPRE IPRF IPRG IPRH IPRI IPRJ IPRK IRQ0 IRQ2 IRQ3 IRQ6 IRQ7 WDT --* TPU channel 0 TPU channel 2 TPU channel 4 8-bit timer channel 0 --* SCI channel 1 IRQ1 IRQ4 IRQ5 DTC --* A/D converter TPU channel 1 TPU channel 3 TPU channel 5 8-bit timer channel 1 SCI channel 0 --* 2 to 0 Note: * Reserved bits. May be read or written, but the setting is ignored. 785 ABWCR--Bus Width Control Register Bit : 7 ABW7 Modes 1 to 3, 5 to 7 Initial value : R/W Mode 4 Initial value : Read/Write : 0 R/W 0 R/W 0 R/W 0 R/W : 1 R/W 1 R/W 1 R/W 1 R/W 6 ABW6 5 ABW5 4 H'FED0 3 ABW3 1 R/W 0 R/W 2 ABW2 1 R/W 0 R/W 1 Bus Controller 0 ABW0 1 R/W 0 R/W ABW4 ABW1 1 R/W 0 R/W Area 7 to 0 Bus Width Control 0 1 Area n is designated for 16-bit access Area n is designated for 8-bit access (n = 7 to 0) ASTCR--Access State Control Register Bit : 7 AST7 Initial value : Read/Write : 1 R/W 6 AST6 1 R/W 5 AST5 1 R/W 4 AST4 1 R/W H'FED1 3 AST3 1 R/W 2 AST2 1 R/W 1 Bus Controller 0 AST0 1 R/W AST1 1 R/W Area 7 to 0 Access State Control 0 Area n is designated for 2-state access Wait state insertion in area n external space is disabled 1 Area n is designated for 3-state access Wait state insertion in area n external space is enabled (n = 7 to 0) 786 WCRH--Wait Control Register H Bit : 7 W71 Initial value : Read/Write : 1 R/W 6 W70 1 R/W 5 W61 1 R/W 4 W60 1 R/W 3 H'FED2 2 W50 1 R/W 1 W41 1 R/W 0 W40 1 R/W Bus Controller W51 1 R/W Area 4 Wait Control 0 0 1 1 0 1 Area 5 Wait Control 0 0 1 1 0 1 Area 6 Wait Control 0 0 1 1 0 1 Area 7 Wait Control 0 0 1 1 0 1 Program wait not inserted 1 program wait state inserted 2 program wait states inserted 3 program wait states inserted Program wait not inserted 1 program wait state inserted 2 program wait states inserted 3 program wait states inserted Program wait not inserted 1 program wait state inserted 2 program wait states inserted 3 program wait states inserted Program wait not inserted 1 program wait state inserted 2 program wait states inserted 3 program wait states inserted 787 WCRL--Wait Control Register L Bit : 7 W31 Initial value : Read/Write : 1 R/W 6 W30 1 R/W 5 W21 1 R/W 4 W20 1 R/W 3 H'FED3 2 W10 1 R/W 1 W01 1 R/W 0 W00 1 R/W Bus Controller W11 1 R/W Area 0 Wait Control 0 0 1 1 0 1 Area 1 Wait Control 0 0 1 1 0 1 Area 2 Wait Control 0 0 1 1 0 1 Area 3 Wait Control 0 0 1 1 0 1 Program wait not inserted 1 program wait state inserted 2 program wait states inserted 3 program wait states inserted Program wait not inserted 1 program wait state inserted 2 program wait states inserted 3 program wait states inserted Program wait not inserted 1 program wait state inserted 2 program wait states inserted 3 program wait states inserted Program wait not inserted 1 program wait state inserted 2 program wait states inserted 3 program wait states inserted 788 BCRH--Bus Control Register H Bit : 7 ICIS1 Initial value : Read/Write : 1 R/W 6 ICIS0 1 R/W 5 0 R/W 4 1 R/W H'FED4 3 0 R/W 2 -- 0 R/W 1 Bus Controller 0 -- 0 R/W BRSTRM BRSTS1 BRSTS0 -- 0 R/W Reserved Only 0 should be written to these bits Burst Cycle Select 0 0 1 Max. 4 words in burst access Max. 8 words in burst access Burst Cycle Select 1 0 1 Burst cycle comprises 1 state Burst cycle comprises 2 states Area 0 Burst ROM Enable 0 1 Area 0 is basic bus interface Area 0 is burst ROM interface Idle Cycle Insert 0 0 1 Idle cycle not inserted in case of successive external read and external write cycles Idle cycle inserted in case of successive external read and external write cycles Idle Cycle Insert 1 0 1 Idle cycle not inserted in case of successive external read cycles in different areas Idle cycle inserted in case of successive external read cycles in different areas 789 BCRL--Bus Control Register L Bit : 7 BRLE Initial value : Read/Write : 0 R/W 6 -- 0 R/W 5 EAE 1 R/W 4 -- 1 R/W H'FED5 3 -- 1 R/W 2 -- 1 R/W 1 Bus Controller 0 WAITE 0 R/W -- 0 R/W Reserved Only 0 should be written to this bit WAIT Pin Enable 0 1 Wait input by WAIT pin disabled Wait input by WAIT pin enabled Reserved Only 1 should be written to these bits External Addresses H'010000 to H'01FFFF Enable 0 1 On-chip ROM (H8S/2345) or reserved area* (H8S/2343) External addresses (in external expansion mode) or reserved area (in single-chip mode) Note: * Do not access a reserved area. Reserved Only 0 should be written to this bit Bus Release Enable 0 1 External bus release is disabled External bus release is enabled 790 RAMER--RAM Emulation Register Bit : 7 -- Initial value : Read/Write : 0 -- 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- H'FEDB 3 -- 0 -- 2 RAMS 0 R/W 1 Bus Controller 0 RAM0 0 R/W RAM1 0 R/W RAM Select, Flash Memory Area Select RAMS RAM1 RAM0 0 1 * 0 1 *: Don't care * 0 1 0 1 RAM Area H'FFEC00-H'FFEFFF H'000000-H'0003FF H'000400-H'0007FF H'000800-H'000BFF H'000C00-H'000FFF 791 ISCRH -- IRQ Sense Control Register H ISCRL -- IRQ Sense Control Register L ISCRH Bit : 15 0 R/W 14 0 R/W 13 0 R/W 12 0 R/W H'FF2C H'FF2D Interrupt Controller Interrupt Controller 11 0 R/W 10 0 R/W 9 0 R/W 8 0 R/W IRQ7SCB IRQ7SCA IRQ6SCB IRQ6SCA IRQ5SCB IRQ5SCA IRQ4SCB IRQ4SCA Initial value : Read/Write : IRQ7 to IRQ4 Sense Control ISCRL Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W IRQ3SCB IRQ3SCA IRQ2SCB IRQ2SCA IRQ1SCB IRQ1SCA IRQ0SCB IRQ0SCA Initial value : Read/Write : IRQ3 to IRQ0 Sense Control IRQnSCB IRQnSCA 0 0 1 1 0 1 Interrupt Request Generation IRQn input low level Falling edge of IRQn input Rising edge of IRQn input Both falling and rising edges of IRQn input (n = 7 to 0) 792 IER--IRQ Enable Register Bit : 7 IRQ7E Initial value : Read/Write : 0 R/W 6 IRQ6E 0 R/W 5 IRQ5E 0 R/W 4 H'FF2E 3 IRQ3E 0 R/W 2 IRQ2E 0 R/W Interrupt Controller 1 IRQ1E 0 R/W 0 IRQ0E 0 R/W IRQ4E 0 R/W IRQn Enable 0 1 IRQn interrupt disabled IRQn interrupt enabled (n = 7 to 0) ISR--IRQ Status Register Bit : 7 IRQ7F Initial value : Read/Write : 0 R/(W)* 6 IRQ6F 0 R/(W)* 5 IRQ5F 0 R/(W)* 4 H'FF2F 3 IRQ3F 0 R/(W)* 2 IRQ2F 0 R/(W)* Interrupt Controller 1 IRQ1F 0 R/(W)* 0 IRQ0F 0 R/(W)* IRQ4F 0 R/(W)* Indicate the status of IRQ7 to IRQ0 interrupt requests Note: * Can only be written with 0 for flag clearing. 793 DTCERA to DTCERF--DTC Enable Registers Bit : 7 DTCE7 Initial value : Read/Write : 0 R/W 6 DTCE6 0 R/W 5 DTCE5 0 R/W 4 DTCE4 0 R/W H'FF30 to H'FF34 3 DTCE3 0 R/W 2 DTCE2 0 R/W 1 DTCE1 0 R/W 0 DTC DTCE0 0 R/W DTC Activation Enable 0 DTC activation by this interrupt is disabled [Clearing conditions] * When the DISEL bit is 1 and data transfer has ended *When the specified number of transfers have ended DTC activation by this interrupt is enabled [Holding condition] When the DISEL bit is 0 and the specified number of transfers have not ended 1 Correspondence between Interrupt Sources and DTCER Bits Register DTCERA DTCERB DTCERC DTCERD DTCERE 7 IRQ0 -- TGI2A -- -- 6 IRQ1 ADI TGI2B -- -- 5 IRQ2 TGI0A TGI3A TGI5A -- 4 IRQ3 TGI0B TGI3B TGI5B -- 3 IRQ4 TGI0C TGI3C CMIA0 RXI0 2 IRQ5 TGI0D TGI3D CMIB0 TXI0 1 IRQ6 TGI1A TGI4A CMIA1 RXI1 0 IRQ7 TGI1B TGI4B CMIB1 TXI1 794 DTVECR--DTC Vector Register Bit : 7 0 R/(W)* 6 0 R/W 5 0 R/W 4 0 R/W H'FF37 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W DTC SWDTE DTVEC6 DTVEC5 DTVEC4 DTVEC3 DTVEC2 DTVEC1 DTVEC0 Initial value : Read/Write : Sets vector number for DTC software activation DTC Software Activation Enable 0 DTC software activation is disabled [Clearing condition] When the DISEL bit is 0 and the specified number of transfers have not ended DTC software activation is enabled [Holding conditions] * When the DISEL bit is 1 and data transfer has ended * When the specified number of transfers have ended * During data transfer due to software activation 1 Note: * A value of 1 can always be written to the SWDTE bit, but 0 can only be written after 1 is read. 795 SBYCR--Standby Control Register Bit : 7 SSBY Initial value : Read/Write : 0 R/W 6 STS2 0 R/W 5 STS1 0 R/W 4 STS0 0 R/W H'FF38 3 OPE 1 R/W 2 -- 0 -- Power-Down State 1 -- 0 -- 0 -- 0 R/W Reserved Only 0 should be written to this bit Output Port Enable 0 In software standby mode, address bus and bus control signals are high-impedance In software standby mode, address bus and bus control signals retain output state 1 Standby Timer Select 0 0 0 1 1 0 1 1 0 0 1 1 0 1 Software Standby 0 1 Transition to sleep mode after execution of SLEEP instruction Transition to software standby mode after execution of SLEEP instruction Standby time = 8192 states Standby time = 16384 states Standby time = 32768 states Standby time = 65536 states Standby time = 131072 states Standby time = 262144 states Reserved Standby time = 16 states 796 SYSCR--System Control Register Bit : 7 -- Initial value : Read/Write : 0 R/W 6 -- 0 R/W 5 INTM1 0 R/W 4 H'FF39 3 NMIEG 0 R/W 2 -- 0 R/W 1 -- 0 R/W 0 MCU INTM0 0 R/W RAME 1 R/W Reserved Only 0 should be written to this bit RAM Enable 0 1 On-chip RAM disabled On-chip RAM enabled NMI Input Edge Select 0 1 Falling edge Rising edge Interrupt Control Mode Selection 0 0 1 1 0 1 Reserved Only 0 should be written to this bit Interrupt control mode 0 -- Interrupt control mode 2 -- 797 SCKCR--System Clock Control Register Bit : 7 PSTOP Initial value : Read/Write : 0 R/W 6 -- 0 R/W 5 -- 0 -- 4 -- 0 -- H'FF3A 3 -- 0 -- 2 Clock Pulse Generator 1 SCK1 0 R/W 0 SCK0 0 R/W SCK2 0 R/W Bus Master Clock Select 0 0 0 1 1 0 1 1 0 0 1 1 o Clock Output Control PSTOP 0 1 Normal Operation o output Fixed high Sleep Mode o output Fixed high Software Standby Mode Fixed high Fixed high Hardware Standby Mode High impedance High impedance -- Bus master is in high-speed mode Medium-speed clock is o/2 Medium-speed clock is o/4 Medium-speed clock is o/8 Medium-speed clock is o/16 Medium-speed clock is o/32 -- 798 MDCR--Mode Control Register Bit : 7 -- Initial value : Read/Write : 1 -- 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- H'FF3B 3 -- 0 -- 2 MDS2 --* R 1 MDS1 --* R 0 MCU MDS0 --* R Current mode pin operating mode Note: * Determined by pins MD2 to MD0 MSTPCRH -- Module Stop Control Register H MSTPCRL -- Module Stop Control Register L MSTPCRH Bit : 15 0 14 0 13 1 12 1 11 1 10 1 9 1 8 1 H'FF3C H'FF3D Power-Down State Power-Down State MSTPCRL 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Specifies module stop mode 0 1 Module stop mode cleared Module stop mode set SYSCR2 -- System Control Register 2 Bit : 7 -- Initial value : Read/Write : 0 -- 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- H'FF42 3 FLSHE 0 R/W 2 -- 0 -- 1 -- 0 -- 0 MCU -- 0 -- Flash Memory Control Register Enable 0 1 Flash memory control register is not selected Flash memory control register is selected 799 Reserved Register Bit : 7 -- Initial value : Read/Write : 0 -- 6 -- 0 -- 5 -- 0 R/W 4 -- 0 -- H'FF44 3 -- 0 -- 2 -- 0 -- 1 -- 0 -- 0 -- 0 -- Reserved Only 0 should be written to these bits Reserved Register Bit : 7 -- Initial value : Read/Write : 0 R/W 6 -- 0 R/W 5 -- 0 R/W 4 -- 0 R/W H'FF45 3 -- 1 R/W 2 -- 1 R/W 1 -- 1 R/W 0 -- 1 R/W Reserved PORT1--Port 1 Register Bit : 7 P17 Initial value : Read/Write : --* R 6 P16 --* R 5 P15 --* R 4 P14 --* R H'FF50 3 P13 --* R 2 P12 --* R 1 P11 --* R Port 1 0 P10 --* R State of port 1 pins Note: * Determined by the state of pins P17 to P10. 800 PORT2--Port 2 Register Bit : 7 P27 Initial value : Read/Write : --* R 6 P26 --* R 5 P25 --* R 4 P24 --* R H'FF51 3 P23 --* R 2 P22 --* R 1 P21 --* R Port 2 0 P20 --* R State of port 2 pins Note: * Determined by the state of pins P27 to P20. PORT3--Port 3 Register Bit : 7 -- Read/Write : -- 6 -- -- 5 P35 --* R 4 P34 --* R H'FF52 3 P33 --* R 2 P32 --* R 1 P31 --* R Port 3 0 P30 --* R Initial value : Undefined Undefined State of port 3 pins Note: * Determined by the state of pins P35 to P30. PORT4--Port 4 Register Bit : 7 P47 Initial value : Read/Write : --* R 6 P46 --* R 5 P45 --* R 4 P44 --* R H'FF53 3 P43 --* R 2 P42 --* R 1 P41 --* R Port 4 0 P40 --* R State of port 4 pins Note: * Determined by the state of pins P47 to P40. 801 PORTA--Port A Register Bit : 7 -- Read/Write : -- 6 -- -- 5 -- -- 4 -- -- H'FF59 3 PA3 --* R 2 PA2 --* R 1 PA1 --* R Port A 0 PA0 --* R Initial value : Undefined Undefined Undefined Undefined State of port A pins Note: * Determined by the state of pins PA3 to PA0. PORTB--Port B Register Bit : 7 PB7 Initial value : Read/Write : --* R 6 PB6 --* R 5 PB5 --* R 4 PB4 --* R H'FF5A 3 PB3 --* R 2 PB2 --* R 1 PB1 --* R Port B 0 PB0 --* R State of port B pins Note: * Determined by the state of pins PB7 to PB0. PORTC--Port C Register Bit : 7 PC7 Initial value : Read/Write : --* R 6 PC6 --* R 5 PC5 --* R 4 PC4 --* R H'FF5B 3 PC3 --* R 2 PC2 --* R 1 PC1 --* R Port C 0 PC0 --* R State of port C pins Note: * Determined by the state of pins PC7 to PC0. 802 PORTD--Port D Register Bit : 7 PD7 Initial value : Read/Write : --* R 6 PD6 --* R 5 PD5 --* R 4 PD4 --* R H'FF5C 3 PD3 --* R 2 PD2 --* R 1 PD1 --* R Port D 0 PD0 --* R State of port D pins Note: * Determined by the state of pins PD7 to PD0. PORTE--Port E Register Bit : 7 PE7 Initial value : Read/Write : --* R 6 PE6 --* R 5 PE5 --* R 4 PE4 --* R H'FF5D 3 PE3 --* R 2 PE2 --* R 1 PE1 --* R Port E 0 PE0 --* R State of port E pins Note: * Determined by the state of pins PE7 to PE0. PORTF--Port F Register Bit : 7 PF7 Initial value : Read/Write : --* R 6 PF6 --* R 5 PF5 --* R 4 PF4 --* R H'FF5E 3 PF3 --* R 2 PF2 --* R 1 PF1 --* R Port F 0 PF0 --* R State of port F pins Note: * Determined by the state of pins PF7 to PF0. 803 PORTG--Port G Register Bit : 7 -- Read/Write : -- 6 -- -- 5 -- -- 4 PG4 --* R H'FF5F 3 PG3 --* R 2 PG2 --* R 1 PG1 --* R Port G 0 PG0 --* R Initial value : Undefined Undefined Undefined State of port G pins Note: * Determined by the state of pins PG4 to PG0. P1DR--Port 1 Data Register Bit : 7 P17DR Initial value : Read/Write : 0 R/W 6 P16DR 0 R/W 5 P15DR 0 R/W 4 H'FF60 3 P13DR 0 R/W 2 P12DR 0 R/W 1 P11DR 0 R/W Port 1 0 P10DR 0 R/W P14DR 0 R/W Stores output data for port 1 pins (P17 to P10) P2DR--Port 2 Data Register Bit : 7 P27DR Initial value : Read/Write : 0 R/W 6 P26DR 0 R/W 5 P25DR 0 R/W 4 H'FF61 3 P23DR 0 R/W 2 P22DR 0 R/W 1 P21DR 0 R/W Port 2 0 P20DR 0 R/W P24DR 0 R/W Stores output data for port 2 pins (P27 to P20) P3DR--Port 3 Data Register Bit : 7 -- Read/Write : -- 6 -- -- 5 P35DR 0 R/W 4 H'FF62 3 P33DR 0 R/W 2 P32DR 0 R/W 1 P31DR 0 R/W Port 3 0 P30DR 0 R/W P34DR 0 R/W Initial value : Undefined Undefined Stores output data for port 3 pins (P35 to P30) 804 PADR--Port A Data Register Bit : 7 -- Read/Write : -- 6 -- -- 5 -- -- 4 -- -- H'FF69 3 PA3DR 0 R/W 2 PA2DR 0 R/W 1 PA1DR 0 R/W Port A 0 PA0DR 0 R/W Initial value : Undefined Undefined Undefined Undefined Stores output data for port A pins (PA3 to PA0) PBDR--Port B Data Register Bit : 7 PB7DR Initial value : Read/Write : 0 R/W 6 PB6DR 0 R/W 5 PB5DR 0 R/W 4 H'FF6A 3 PB3DR 0 R/W 2 PB2DR 0 R/W 1 PB1DR 0 R/W Port B 0 PB0DR 0 R/W PB4DR 0 R/W Stores output data for port B pins (PB7 to PB0) PCDR--Port C Data Register Bit : 7 PC7DR Initial value : Read/Write : 0 R/W 6 PC6DR 0 R/W 5 PC5DR 0 R/W 4 H'FF6B 3 PC3DR 0 R/W 2 PC2DR 0 R/W 1 0 R/W Port C 0 0 R/W PC4DR 0 R/W PC1DR PC0DR Stores output data for port C pins (PC7 to PC0) 805 PDDR--Port D Data Register Bit : 7 PD7DR Initial value : Read/Write : 0 R/W 6 PD6DR 0 R/W 5 PD5DR 0 R/W 4 H'FF6C 3 PD3DR 0 R/W 2 PD2DR 0 R/W 1 0 R/W Port D 0 0 R/W PD4DR 0 R/W PD1DR PD0DR Stores output data for port D pins (PD7 to PD0) PEDR--Port E Data Register Bit : 7 PE7DR Initial value : Read/Write : 0 R/W 6 PE6DR 0 R/W 5 PE5DR 0 R/W 4 H'FF6D 3 PE3DR 0 R/W 2 PE2DR 0 R/W 1 PE1DR 0 R/W Port E 0 PE0DR 0 R/W PE4DR 0 R/W Stores output data for port E pins (PE7 to PE0) PFDR--Port F Data Register Bit : 7 PF7DR Initial value : Read/Write : 0 R/W 6 PF6DR 0 R/W 5 PF5DR 0 R/W 4 H'FF6E 3 PF3DR 0 R/W 2 PF2DR 0 R/W 1 PF1DR 0 R/W Port F 0 PF0DR 0 R/W PF4DR 0 R/W Stores output data for port F pins (PF7 to PF0) 806 PGDR--Port G Data Register Bit : 7 -- Read/Write : -- 6 -- -- 5 -- -- 4 0 R/W H'FF6F 3 0 R/W 2 0 R/W 1 0 R/W Port G 0 0 R/W PG4DR PG3DR PG2DR PG1DR PG0DR Initial value : Undefined Undefined Undefined Stores output data for port G pins (PG4 to PG0) PAPCR--Port A MOS Pull-Up Control Register Bit : 7 -- Read/Write : -- 6 -- -- 5 -- -- 4 -- -- H'FF70 3 0 R/W 2 0 R/W 1 0 R/W 0 0 Port A PA3PCR PA2PCR PA1PCR PA0PCR R/W Initial value : Undefined Undefined Undefined Undefined Controls the MOS input pull-up function incorporated into port A on a bit-by-bit basis PBPCR--Port B MOS Pull-Up Control Register Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FF71 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Port B PB7PCR PB6PCR PB5PCR PB4PCR PB3PCR PB2PCR PB1PCR PB0PCR Initial value : Read/Write : Controls the MOS input pull-up function incorporated into port B on a bit-by-bit basis PCPCR--Port C MOS Pull-Up Control Register Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FF72 3 0 R/W 2 0 R/W 1 0 R/W 0 0 Port C PC7PCR PC6PCR PC5PCR PC4PCR PC3PCR PC2PCR PC1PCR PC0PCR Initial value : Read/Write : R/W Controls the MOS input pull-up function incorporated into port C on a bit-by-bit basis 807 PDPCR--Port D MOS Pull-Up Control Register Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FF73 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Port D PD7PCR PD6PCR PD5PCR PD4PCR PD3PCR PD2PCR PD1PCR PD0PCR Initial value : Read/Write : Controls the MOS input pull-up function incorporated into port D on a bit-by-bit basis PEPCR--Port E MOS Pull-Up Control Register Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FF74 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W Port E PE7PCR PE6PCR PE5PCR PE4PCR PE3PCR PE2PCR PE1PCR PE0PCR Initial value : Read/Write : Controls the MOS input pull-up function incorporated into port E on a bit-by-bit basis P3ODR--Port 3 Open Drain Control Register Bit : 7 -- Read/Write : -- 6 -- -- 5 0 R/W 4 0 R/W H'FF76 3 0 R/W 2 0 R/W 1 0 R/W Port 3 0 0 R/W P35ODR P34ODR P33ODR P32ODR P31ODR P30ODR Initial value : Undefined Undefined Controls the PMOS on/off status for each port 3 pin (P35 to P30) PAODR--Port A Open Drain Control Register Bit : 7 -- Read/Write : -- 6 -- -- 5 -- -- 4 -- -- H'FF77 3 0 R/W 2 0 R/W 1 0 R/W Port A 0 0 R/W PA3ODR PA2ODR PA1ODR PA0ODR Initial value : Undefined Undefined Undefined Undefined Controls the PMOS on/off status for each port A pin (PA3 to PA0) 808 SMR0--Serial Mode Register 0 Bit : 7 C/A Initial value : Read/Write : 0 R/W 6 CHR 0 R/W 5 PE 0 R/W 4 O/E 0 R/W H'FF78 3 STOP 0 R/W 2 MP 0 R/W 1 CKS1 0 R/W 0 CKS0 0 R/W SCI0 Clock Select 0 0 1 1 0 1 Multiprocessor Mode 0 1 Stop Bit Length 0 1 Parity Mode 0 1 Parity Enable 0 1 Parity bit addition and checking disabled Parity bit addition and checking enabled Even parity Odd parity 1 stop bit 2 stop bits Multiprocessor function disabled Multiprocessor format selected o clock o/4 clock o/16 clock o/64 clock Character Length 0 1 8-bit data 7-bit data* Note: * When 7-bit data is selected, the MSB (bit 7) of TDR is not transmitted. Asynchronous Mode/Synchronous Mode Select 0 1 Asynchronous mode Synchronous mode 809 SMR0--Serial Mode Register 0 Bit : 7 GM Initial value : Read/Write : 0 R/W 6 CHR 0 R/W 5 PE 0 R/W 4 O/E 0 R/W H'FF78 3 STOP 0 R/W 2 MP 0 R/W Smart Card Interface 0 1 CKS1 0 R/W Clock Select 0 0 1 1 0 1 o clock o/4 clock o/16 clock o/64 clock 0 CKS0 0 R/W Multiprocessor Mode 0 1 Stop Bit Length 0 1 Parity Mode 0 1 Parity Enable 0 1 Setting prohibited Parity bit addition and checking enabled Even parity Odd parity Setting prohibited 2 stop bits Multiprocessor function disabled Setting prohibited Character Length 0 1 GSM Mode 0 Normal smart card interface mode operation * TEND flag generated 12.5 etu after beginning of start bit * Clock output on/off control only GSM mode smart card interface mode operation * TEND flag generated 11.0 etu after beginning of start bit * Fixed high/low-level control possible (set in SCR) in addition to clock output on/off control 8-bit data Setting prohibited 1 Note: etu (Elementary Time Unit): Interval for transfer of one bit 810 BRR0--Bit Rate Register 0 Bit : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W H'FF79 3 1 R/W SCI0, Smart Card Interface 0 2 1 R/W 1 1 R/W 0 1 R/W Initial value : Read/Write : Sets the serial transfer bit rate Note: See section 12.2.8, Bit Rate Register (BRR), for details. 811 SCR0--Serial Control Register 0 Bit : 7 TIE Initial value : Read/Write : 0 R/W 6 RIE 0 R/W 5 TE 0 R/W 4 RE 0 R/W 3 MPIE 0 R/W 2 TEIE 0 R/W H'FF7A 1 CKE1 0 R/W Clock Enable 0 0 Asynchronous mode Synchronous mode Asynchronous mode Synchronous mode Asynchronous mode Synchronous mode Asynchronous mode Synchronous mode 0 CKE0 0 R/W SCI0 Internal clock/SCK pin functions as I/O port Internal clock/SCK pin functions as serial clock output Internal clock/SCK pin functions as clock output*1 Internal clock/SCK pin functions as serial clock output External clock/SCK pin functions as clock input*2 External clock/SCK pin functions as serial clock input External clock/SCK pin functions as clock input*2 External clock/SCK pin functions as serial clock input 1 1 0 1 Notes: 1. Outputs a clock of the same frequency as the bit rate. 2. Inputs a clock with a frequency 16 times the bit rate. Transmit End Interrupt Enable 0 1 Transmit end interrupt (TEI) request disabled Transmit end interrupt (TEI) request enabled Multiprocessor Interrupt Enable 0 Multiprocessor interrupts disabled [Clearing conditions] * When the MPIE bit is cleared to 0 * When MPB= 1 data is received Multiprocessor interrupts enabled Receive interrupt (RXI) requests, receive error interrupt (ERI) requests, and setting of the RDRF, FER, and ORER flags in SSR are disabled until data with the multiprocessor bit set to 1 is received 1 Receive Enable 0 1 Reception disabled Reception enabled Transmit Enable 0 1 Transmission disabled Transmission enabled Receive Interrupt Enable 0 1 Receive data full interrupt (RXI) request and receive error interrupt (ERI) request disabled Receive data full interrupt (RXI) request and receive error interrupt (ERI) request enabled Transmit Interrupt Enable 0 1 Transmit data empty interrupt (TXI) requests disabled Transmit data empty interrupt (TXI) requests enabled 812 SCR0--Serial Control Register 0 Bit : 7 TIE Initial value : Read/Write : 0 R/W 6 RIE 0 R/W 5 TE 0 R/W 4 RE 0 R/W 3 MPIE 0 R/W 2 TEIE 0 R/W H'FF7A 1 CKE1 0 R/W Clock Enable SMCR SMR 0 CKE0 0 R/W Smart Card Interface 0 SCR setting CKE0 SMIF C/A,GM CKE1 0 1 1 1 1 1 1 0 0 1 1 1 1 0 0 0 0 1 1 SCK pin function See SCI specification 0 1 0 1 0 1 Operates as port input pin Clock output as SCK output pin Fixed-low output as SCK output pin Clock output as SCK output pin Fixed-high output as SCK output pin Clock output as SCK output pin Transmit End Interrupt Enable 0 1 Transmit end interrupt (TEI) request disabled Transmit end interrupt (TEI) request enabled Multiprocessor Interrupt Enable 0 Multiprocessor interrupts disabled [Clearing conditions] * When the MPIE bit is cleared to 0 * When MPB= 1 data is received Multiprocessor interrupts enabled Receive interrupt (RXI) requests, receive error interrupt (ERI) requests, and setting of the RDRF, FER, and ORER flags in SSR are disabled until data with the multiprocessor bit set to 1 is received 1 Receive Enable 0 1 Reception disabled Reception enabled Transmit Enable 0 1 Transmission disabled Transmission enabled Receive Interrupt Enable 0 1 Receive data full interrupt (RXI) request and receive error interrupt (ERI) request disabled Receive data full interrupt (RXI) request and receive error interrupt (ERI) request enabled Transmit Interrupt Enable 0 1 Transmit data empty interrupt (TXI) requests disabled Transmit data empty interrupt (TXI) requests enabled 813 TDR0--Transmit Data Register 0 Bit : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 H'FF7B 3 1 R/W SCI0, Smart Card Interface 0 2 1 R/W 1 1 R/W 0 1 R/W Initial value : Read/Write : R/W Stores data for serial transmission 814 SSR0--Serial Status Register 0 Bit : 7 TDRE Initial value : Read/Write : 1 R/(W)* 6 RDRF 0 R/(W)* 5 ORER 0 R/(W)* 4 FER 0 R/(W)* 3 PER 0 R/(W)* 2 TEND 1 R H'FF7C 1 MPB 0 R 0 MPBT 0 R/W Multiprocessor Bit Transfer 0 1 SCI0 Data with a 0 multiprocessor bit is transmitted Data with a 1 multiprocessor bit is transmitted Multiprocessor Bit 0 1 Transmit End 0 [Clearing condition] * When 0 is written to TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR [Setting conditions] * When the TE bit in SCR is 0 * When TDRE = 1 at transmission of the last bit of a 1-byte serial transmit character [Clearing condition] When data with a 0 multiprocessor bit is received [Setting condition] When data with a 1 multiprocessor bit is received 1 Parity Error 0 1 [Clearing condition] When 0 is written to PER after reading PER = 1 [Setting condition] When, in reception, the number of 1 bits in the receive data plus the parity bit does not match the parity setting (even or odd) specified by the O/E bit in SMR Framing Error 0 1 [Clearing condition] When 0 is written to FER after reading FER = 1 [Setting condition] When the SCI checks whether the stop bit at the end of the receive data when reception ends, and the stop bit is 0 Overrun Error 0 1 [Clearing condition] When 0 is written to ORER after reading ORER = 1 [Setting condition] When the next serial reception is completed while RDRF = 1 Receive Data Register Full 0 [Clearing condition] * When 0 is written to RDRF after reading RDRF = 1 * When the DTC is activated by an RXI interrupt and reads data from RDR [Setting condition] When serial reception ends normally and receive data is transferred from RSR to RDR 1 Transmit Data Register Empty 0 [Clearing condition] * When 0 is written to TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR [Setting condition] * When the TE bit in SCR is 0 * When data is transferred from TDR to TSR and data can be written to TDR 1 Note: * Can only be written with 0 for flag clearing. 815 SSR0--Serial Status Register 0 Bit : 7 TDRE Initial value : Read/Write : 1 R/(W)* 6 RDRF 0 R/(W)* 5 ORER 0 R/(W)* 4 ERS 0 R/(W)* 3 PER 0 R/(W)* 2 TEND 1 R H'FF7C 1 MPB 0 R 0 MPBT 0 R/W Smart Card Interface 0 Multiprocessor Bit Transfer 0 1 Data with a 0 multiprocessor bit is transmitted Data with a 1 multiprocessor bit is transmitted Multiprocessor Bit 0 1 Transmit End 0 [Clearing condition] * When 0 is written to TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR [Setting conditions] * On reset, or in standby mode or module stop mode * When the TE bit in SCR is 0 and the ERS bit is 0 * When TDRE = 1 and ERS = 0 (normal transmission) 2.5 etu after a 1-byte serial character is transmitted when GM = 0 * When TDRE = 1 and ERS = 0 (normal transmission) 1.0 etu after a 1-byte serial character is transmitted when GM = 1 [Clearing condition] When data with a 0 multiprocessor bit is received [Setting condition] When data with a 1 multiprocessor bit is received 1 Note: etu: Elementary Time Unit (the time taken to transmit one bit) Parity Error 0 1 [Clearing condition] When 0 is written to PER after reading PER = 1 [Setting condition] When, in reception, the number of 1 bits in the receive data plus the parity bit does not match the parity setting (even or odd) specified by the O/E bit in SMR Error Signal Status 0 [Clearing condition] * On reset, or in standby mode or module stop mode * When 0 is written to ERS after reading ERS = 1 [Setting condition] When the error signal is sampled at the low level 1 Note: Clearing the TE bit in SCR to 0 does not affect the ERS flag, which retains its prior state. Overrun Error 0 1 [Clearing condition] When 0 is written to ORER after reading ORER = 1 [Setting condition] When the next serial reception is completed while RDRF = 1 Receive Data Register Full 0 [Clearing condition] * When 0 is written to RDRF after reading RDRF = 1 * When the DTC is activated by an RXI interrupt and reads data from RDR [Setting condition] When serial reception ends normally and receive data is transferred from RSR to RDR 1 Transmit Data Register Empty 0 [Clearing condition] * When 0 is written to TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR [Setting condition] * When the TE bit in SCR is 0 * When data is transferred from TDR to TSR and data can be written to TDR 1 Note: * Can only be written with 0 for flag clearing. 816 RDR0--Receive Data Register 0 Bit : 7 0 R 6 0 R 5 0 R 4 0 R H'FF7D 3 0 R SCI0, Smart Card Interface 0 2 0 R 1 0 R 0 0 R Initial value : Read/Write : Stores received serial data SCMR0--Smart Card Mode Register 0 Bit : 7 -- Initial value : Read/Write : 1 -- 6 -- 1 -- 5 -- 1 -- 4 -- 1 -- 3 H'FF7E 2 SINV 0 R/W SCI0, Smart Card Interface 0 1 -- 1 -- 0 SMIF 0 R/W SDIR 0 R/W Smart Card Interface Mode Select 0 1 Smart Card interface function is disabled Smart Card interface function is enabled Smart Card Data Invert 0 1 TDR contents are transmitted as they are Receive data is stored in RDR as it is TDR contents are inverted before being transmitted Receive data is stored in RDR in inverted form Smart Card Data Direction 0 1 TDR contents are transmitted LSB-first Receive data is stored in RDR LSB-first TDR contents are transmitted MSB-first Receive data is stored in RDR MSB-first 817 SMR1--Serial Mode Register 1 Bit : 7 C/A Initial value : Read/Write : 0 R/W 6 CHR 0 R/W 5 PE 0 R/W 4 O/E 0 R/W H'FF80 3 STOP 0 R/W 2 MP 0 R/W 1 CKS1 0 R/W 0 CKS0 0 R/W SCI1 Clock Select 0 0 1 1 0 1 Multiprocessor Mode 0 1 Stop Bit Length 0 1 Parity Mode 0 1 Parity Enable 0 1 Parity bit addition and checking disabled Parity bit addition and checking enabled Even parity Odd parity 1 stop bit 2 stop bits Multiprocessor function disabled Multiprocessor format selected o clock o/4 clock o/16 clock o/64 clock Character Length 0 1 8-bit data 7-bit data* Note: * When 7-bit data is selected, the MSB (bit 7) of TDR is not transmitted. Asynchronous Mode/Synchronous Mode Select 0 1 Asynchronous mode Synchronous mode 818 SMR1--Serial Mode Register 1 Bit : 7 GM Initial value : Read/Write : 0 R/W 6 CHR 0 R/W 5 PE 0 R/W 4 O/E 0 R/W H'FF80 3 STOP 0 R/W 2 MP 0 R/W Smart Card Interface 1 1 CKS1 0 R/W Clock Select 0 0 1 1 0 1 o clock o/4 clock o/16 clock o/64 clock 0 CKS0 0 R/W Multiprocessor Mode 0 1 Stop Bit Length 0 1 Parity Mode 0 1 Parity Enable 0 1 Setting prohibited Parity bit addition and checking enabled Even parity Odd parity Setting prohibited 2 stop bits Multiprocessor function disabled Setting prohibited Character Length 0 1 GSM Mode 0 Normal smart card interface mode operation * TEND flag generated 12.5 etu after beginning of start bit * Clock output on/off control only GSM mode smart card interface mode operation * TEND flag generated 11.0 etu after beginning of start bit * Fixed high/low-level control possible (set in SCR) in addition to clock output on/off control 8-bit data Setting prohibited 1 Note: etu (Elementary Time Unit): Interval for transfer of one bit 819 BRR1--Bit Rate Register 1 Bit : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W H'FF81 3 1 R/W SCI1, Smart Card Interface 1 2 1 R/W 1 1 R/W 0 1 R/W Initial value : Read/Write : Sets the serial transfer bit rate Note: See section 12.2.8, Bit Rate Register (BRR), for details. 820 SCR1--Serial Control Register 1 Bit : 7 TIE Initial value : Read/Write : 0 R/W 6 RIE 0 R/W 5 TE 0 R/W 4 RE 0 R/W 3 MPIE 0 R/W 2 TEIE 0 R/W H'FF82 1 CKE1 0 R/W Clock Enable 0 0 Asynchronous mode Synchronous mode Asynchronous mode Synchronous mode Asynchronous mode Synchronous mode Asynchronous mode Synchronous mode 0 CKE0 0 R/W SCI1 Internal clock/SCK pin functions as I/O port Internal clock/SCK pin functions as serial clock output Internal clock/SCK pin functions as clock output*1 Internal clock/SCK pin functions as serial clock output External clock/SCK pin functions as clock input*2 External clock/SCK pin functions as serial clock input External clock/SCK pin functions as clock input*2 External clock/SCK pin functions as serial clock input 1 1 0 1 Notes: 1. Outputs a clock of the same frequency as the bit rate. 2. Inputs a clock with a frequency 16 times the bit rate. Transmit End Interrupt Enable 0 1 Transmit end interrupt (TEI) request disabled Transmit end interrupt (TEI) request enabled Multiprocessor Interrupt Enable 0 Multiprocessor interrupts disabled [Clearing conditions] * When the MPIE bit is cleared to 0 * When MPB= 1 data is received Multiprocessor interrupts enabled Receive interrupt (RXI) requests, receive error interrupt (ERI) requests, and setting of the RDRF, FER, and ORER flags in SSR are disabled until data with the multiprocessor bit set to 1 is received 1 Receive Enable 0 1 Reception disabled Reception enabled Transmit Enable 0 1 Transmission disabled Transmission enabled Receive Interrupt Enable 0 1 Receive data full interrupt (RXI) request and receive error interrupt (ERI) request disabled Receive data full interrupt (RXI) request and receive error interrupt (ERI) request enabled Transmit Interrupt Enable 0 1 Transmit data empty interrupt (TXI) requests disabled Transmit data empty interrupt (TXI) requests enabled 821 SCR1--Serial Control Register 1 Bit : 7 TIE Initial value : Read/Write : 0 R/W 6 RIE 0 R/W 5 TE 0 R/W 4 RE 0 R/W 3 MPIE 0 R/W 2 TEIE 0 R/W H'FF82 1 CKE1 0 R/W Clock Enable SMCR SMR 0 CKE0 0 R/W Smart Card Interface 1 SCR setting CKE0 SMIF C/A,GM CKE1 0 1 1 1 1 1 1 0 0 1 1 1 1 0 0 0 0 1 1 SCK pin function See SCI specification 0 1 0 1 0 1 Operates as port input pin Clock output as SCK output pin Fixed-low output as SCK output pin Clock output as SCK output pin Fixed-high output as SCK output pin Clock output as SCK output pin Transmit End Interrupt Enable 0 1 Transmit end interrupt (TEI) request disabled Transmit end interrupt (TEI) request enabled Multiprocessor Interrupt Enable 0 Multiprocessor interrupts disabled [Clearing conditions] * When the MPIE bit is cleared to 0 * When MPB= 1 data is received Multiprocessor interrupts enabled Receive interrupt (RXI) requests, receive error interrupt (ERI) requests, and setting of the RDRF, FER, and ORER flags in SSR are disabled until data with the multiprocessor bit set to 1 is received 1 Receive Enable 0 1 Reception disabled Reception enabled Transmit Enable 0 1 Transmission disabled Transmission enabled Receive Interrupt Enable 0 1 Receive data full interrupt (RXI) request and receive error interrupt (ERI) request disabled Receive data full interrupt (RXI) request and receive error interrupt (ERI) request enabled Transmit Interrupt Enable 0 1 Transmit data empty interrupt (TXI) requests disabled Transmit data empty interrupt (TXI) requests enabled 822 TDR1--Transmit Data Register 1 Bit : 7 1 R/W 6 1 R/W 5 1 R/W 4 1 R/W H'FF83 3 1 R/W SCI1, Smart Card Interface 1 2 1 R/W 1 1 R/W 0 1 R/W Initial value : Read/Write : Stores data for serial transmission 823 SSR1--Serial Status Register 1 Bit : 7 TDRE Initial value : Read/Write : 1 R/(W)* 6 RDRF 0 R/(W)* 5 ORER 0 R/(W)* 4 FER 0 R/(W)* 3 PER 0 R/(W)* 2 TEND 1 R H'FF84 1 MPB 0 R 0 MPBT 0 R/W Multiprocessor Bit Transfer 0 1 SCI1 Data with a 0 multiprocessor bit is transmitted Data with a 1 multiprocessor bit is transmitted Multiprocessor Bit 0 1 Transmit End 0 [Clearing condition] * When 0 is written to TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR [Setting condition] * When the TE bit in SCR is 0 * When TDRE = 1 at transmission of the last bit of a 1-byte serial transmit character [Clearing condition] When data with a 0 multiprocessor bit is received [Setting condition] When data with a 1 multiprocessor bit is received 1 Parity Error 0 1 [Clearing condition] When 0 is written to PER after reading PER = 1 [Setting condition] When, in reception, the number of 1 bits in the receive data plus the parity bit does not match the parity setting (even or odd) specified by the O/E bit in SMR Framing Error 0 1 [Clearing condition] When 0 is written to FER after reading FER = 1 [Setting condition] When the SCI checks whether the stop bit at the end of the receive data when reception ends, and the stop bit is 0 Overrun Error 0 1 [Clearing condition] When 0 is written to ORER after reading ORER = 1 [Setting condition] When the next serial reception is completed while RDRF = 1 Receive Data Register Full 0 [Clearing condition] * When 0 is written to RDRF after reading RDRF = 1 * When the DTC is activated by an RXI interrupt and reads data from RDR [Setting condition] When serial reception ends normally and receive data is transferred from RSR to RDR 1 Transmit Data Register Empty 0 [Clearing condition] * When 0 is written to TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR [Setting condition] * When the TE bit in SCR is 0 * When data is transferred from TDR to TSR and data can be written to TDR 1 Note: * Can only be written with 0 for flag clearing. 824 SSR1--Serial Status Register 1 Bit : 7 TDRE Initial value : Read/Write : 1 R/(W)* 6 RDRF 0 R/(W)* 5 ORER 0 R/(W)* 4 ERS 0 R/(W)* 3 PER 0 R/(W)* 2 TEND 1 R H'FF84 1 MPB 0 R 0 MPBT 0 R/W Smart Card Interface 1 Multiprocessor Bit Transfer 0 1 Data with a 0 multiprocessor bit is transmitted Data with a 1 multiprocessor bit is transmitted Multiprocessor Bit 0 1 Transmit End 0 [Clearing condition] * When 0 is written to TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR [Setting conditions] * On reset, or in standby mode or module stop mode * When the TE bit in SCR is 0 and the ERS bit is 0 * When TDRE = 1 and ERS = 0 (normal transmission) 2.5 etu after a 1-byte serial character is transmitted when GM = 0 * When TDRE = 1 and ERS = 0 (normal transmission) 1.0 etu after a 1-byte serial character is transmitted when GM = 1 [Clearing condition] When data with a 0 multiprocessor bit is received [Setting conditions] When data with a 1 multiprocessor bit is received 1 Note: etu: Elementary Time Unit (the time taken to transmit one bit) Parity Error 0 1 [Clearing condition] When 0 is written to PER after reading PER = 1 [Setting condition] When, in reception, the number of 1 bits in the receive data plus the parity bit does not match the parity setting (even or odd) specified by the O/E bit in SMR Error Signal Status 0 [Clearing condition] * On reset, or in standby mode or module stop mode * When 0 is written to ERS after reading ERS =1 [Setting conditions] When the error signal is sampled at the low level 1 Note: Clearing the TE bit in SCR to 0 does not affect the ERS flag, which retains its prior state. Overrun Error 0 1 [Clearing condition] When 0 is written to ORER after reading ORER = 1 [Setting condition] When the next serial reception is completed while RDRF = 1 Receive Data Register Full 0 [Clearing condition] * When 0 is written to RDRF after reading RDRF = 1 * When the DTC is activated by an RXI interrupt and reads data from RDR [Setting condition] When serial reception ends normally and receive data is transferred from RSR to RDR 1 Transmit Data Register Empty 0 [Clearing condition] * When 0 is written to TDRE after reading TDRE = 1 * When the DTC is activated by a TXI interrupt and writes data to TDR [Setting condition] * When the TE bit in SCR is 0 * When data is transferred from TDR to TSR and data can be written to TDR 1 Note: * Can only be written with 0 for flag clearing. 825 RDR1--Receive Data Register 1 Bit : 7 0 R 6 0 R 5 0 R 4 0 R H'FF85 3 0 R SCI1, Smart Card Interface 1 2 0 R 1 0 R 0 0 R Initial value : Read/Write : Stores received serial data SCMR1--Smart Card Mode Register 1 Bit : 7 -- Initial value : Read/Write : 1 -- 6 -- 1 -- 5 -- 1 -- 4 -- 1 -- 3 SDIR 0 R/W H'FF86 2 SINV 0 R/W SCI1, Smart Card Interface 1 1 -- 1 -- 0 SMIF 0 R/W Smart Card Interface Mode Select 0 1 Smart Card interface function is disabled Smart Card interface function is enabled Smart Card Data Invert 0 1 TDR contents are transmitted as they are Receive data is stored in RDR as it is TDR contents are inverted before being transmitted Receive data is stored in RDR in inverted form Smart Card Data Direction 0 1 TDR contents are transmitted LSB-first Receive data is stored in RDR LSB-first TDR contents are transmitted MSB-first Receive data is stored in RDR MSB-first 826 ADDRAH ADDRAL ADDRBH ADDRBL ADDRCH ADDRCL ADDRDH ADDRDL -- -- -- -- -- -- -- -- A/D Data Register AH A/D Data Register AL A/D Data Register BH A/D Data Register BL A/D Data Register CH A/D Data Register CL A/D Data Register DH A/D Data Register DL H'FF90 H'FF91 H'FF92 H'FF93 H'FF94 H'FF95 H'FF96 H'FF97 A/D Converter A/D Converter A/D Converter A/D Converter A/D Converter A/D Converter A/D Converter A/D Converter Bit : 15 0 R 14 0 R 13 0 R 12 0 R 11 0 R 10 0 R 9 0 R 8 0 R 7 0 R 6 0 R 5 0 R 4 -- 0 R 3 -- 0 R 2 -- 0 R 1 -- 0 R 0 -- 0 R AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 -- Initial value : Read/Write : Stores the results of A/D conversion Analog Input Channel Group 0 AN0 AN1 AN2 AN3 Group 1 AN4 AN5 AN6 AN7 A/D Data Register ADDRA ADDRB ADDRC ADDRD 827 ADCSR--A/D Control/Status Register Bit : 7 ADF Initial value : Read/Write : 0 R/(W)* 6 ADIE 0 R/W 5 ADST 0 R/W 4 SCAN 0 R/W H'FF98 3 CKS 0 R/W Channel Select Group select CH2 0 Channel select CH1 0 1 1 0 1 CH0 0 1 0 1 0 1 0 1 Group Select 0 1 Scan Mode 0 1 Single mode Scan mode AN0 AN1 AN2 AN3 AN4 AN5 AN6 AN7 A/D Converter 2 CH2 0 R/W 1 CH1 0 R/W 0 CH0 0 R/W Single Mode Scan Mode AN0 AN0, AN1 AN0 to AN2 AN0 to AN3 AN4 AN4, AN5 AN4 to AN6 AN4 to AN7 Conversion time= 266 states (max.) Conversion time= 134 states (max.) A/D Start 0 1 A/D conversion stopped * Single mode: A/D conversion is started. Cleared to 0 automatically when conversion ends * Scan mode: A/D conversion is started. Conversion continues sequentially on the selected channels until ADST is cleared to 0 by software, a reset, or transition to standby mode or module stop mode A/D Interrupt Enable 0 A/D End Flag 0 1 A/D conversion end interrupt (ADI) request disabled A/D conversion end interrupt (ADI) request enabled [Clearing conditions] * When 0 is written to the ADF flag after reading ADF = 1 * When the DTC is activated by an ADI interrupt, and ADDR is read [Setting conditions] * Single mode: When A/D conversion ends * Scan mode: When one round of conversion has been performed on all specified channels 1 Note: * Can only be written with 0 for flag clearing. 828 ADCR--A/D Control Register Bit : 7 ADF Initial value : Read/Write : 0 R/(W)* 6 ADIE 0 R/W 5 ADST 0 R/W 4 SCAN 0 R/W H'FF99 3 CKS 0 R/W Channel Select Group select CH2 0 Channel select CH1 0 1 1 0 1 CH0 0 1 0 1 0 1 0 1 Group Select 0 1 Scan Mode 0 1 A/D Start 0 1 A/D conversion stopped Single mode Scan mode Conversion time= 266 states (max.) Conversion time= 134 states (max.) AN0 AN1 AN2 AN3 AN4 AN5 AN6 AN7 AN0 AN0, AN1 A/D 2 CH2 0 R/W 1 CH1 0 R/W 0 CH0 0 R/W Single Mode Group Mode AN0 to AN2 AN0 to AN3 AN4 AN4, AN5 AN4 to AN6 AN4 to AN7 * Single mode: A/D conversion is started. Cleared to 0 automatically when conversion ends * Scan mode: A/D conversion is started. Conversion continues sequentially on the selected channels until ADST is cleared to 0 by software, a reset, or transition to standby mode or module stop mode A/D Interrupt Enable 0 A/D End Flag 0 1 A/D conversion end interrupt (ADI) request disabled A/D conversion end interrupt (ADI) request enabled [Clearing conditions] * When 0 is written to the ADF flag after reading ADF = 1 * When the DTC is activated by an ADI interrupt, and ADDR is read [Setting conditions] * Single mode: When A/D conversion ends * Scan mode: When one round of conversion has been performed on all specified channels 1 Note: * Can only be written with 0 for flag clearing. 829 DADR0--D/A Data Register 0 DADR1--D/A Data Register 1 Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FFA4 H'FFA5 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W D/A D/A Initial value : Read/Write : Stores data for D/A conversion 830 DACR--D/A Control Register Bit : 7 DAOE1 Initial value : Read/Write : 0 R/W 6 DAOE0 0 R/W 5 DAE 0 R/W 4 -- 1 -- H'FFA6 3 -- 1 -- 2 -- 1 -- 1 -- 1 -- 0 -- 1 -- D/A D/A Output Enable 0 0 1 Analog output DA0 is disabled Channel 0 D/A conversion is enabled Analog output DA0 is enabled D/A Output Enable 1 0 1 Analog output DA1 is disabled Channel 1 D/A conversion is enabled Analog output DA1 is enabled D/A Conversion Control DAOE1 DAOE0 0 0 1 DAE * 0 Description Channel 0 and 1 D/A conversion disabled Channel 0 D/A conversion enabled Channel 1 D/A conversion disabled 1 1 0 0 Channel 0 and 1 D/A conversions enabled Channel 0 D/A conversion disabled Channel 1 D/A conversion enabled 1 1 * Channel 0 and 1 D/A conversion enabled Channel 0 and 1 D/A conversion enabled * : Don't care 831 TCR0--Time Control Register 0 TCR1--Time Control Register 1 Bit : 7 CMIEB 0 R/W 6 CMIEA 0 R/W 5 OVIE 0 R/W 4 CCLR1 0 R/W 3 CCLR0 0 R/W 2 H'FFB0 H'FFB1 1 CKS1 0 R/W 0 CKS0 0 R/W 8-Bit Timer Channel 0 8-Bit Timer Channel 1 CKS2 0 R/W Initial value : Read/Write : Clock Select 0 0 0 1 1 0 1 1 0 0 Clock input disabled Internal clock: counted at falling edge of o/8 Internal clock: counted at falling edge of o/64 Internal clock: counted at falling edge of o/8192 For channel 0: Count at TCNT1 overflow signal* For channel 1: Count at TCNT0 compare match A* External clock: counted at rising edge External clock: counted at falling edge External clock: counted at both rising and falling edges 1 1 0 1 Note: * If the count input of channel 0 is the TCNT1 overflow signal and that of channel 1 is the TCNT0 compare match signal, no incrementing clock is generated. Do not use this setting. Counter Clear 0 0 1 1 0 1 Clear is disabled Clear by compare match A Clear by compare match B Clear by rising edge of external reset input Timer Overflow Interrupt Enable 0 1 OVF interrupt requests (OVI) are disabled OVF interrupt requests (OVI) are enabled Compare Match Interrupt Enable A 0 1 CMFA interrupt requests (CMIA) are disabled CMFA interrupt requests (CMIA) are enabled Compare Match Interrupt Enable B 0 1 CMFB interrupt requests (CMIB) are disabled CMFB interrupt requests (CMIB) are enabled 832 TCSR0--Timer Control/Status Register 0 TCSR1--Timer Control/Status Register 1 TCSR0 Bit : 7 CMFB 0 R/(W)* 7 CMFB 0 R/(W)* 6 CMFA 0 R/(W)* 6 CMFA 0 R/(W)* 5 OVF 0 R/(W)* 5 OVF 0 R/(W)* 4 H'FFB2 H'FFB3 3 OS3 0 R/W 3 OS3 0 R/W 2 OS2 0 R/W 2 OS2 0 R/W 8-Bit Timer Channel 0 8-Bit Timer Channel 1 1 OS1 0 R/W 1 OS1 0 R/W 0 OS0 0 R/W 0 OS0 0 R/W ADTE 0 R/W 4 -- 1 -- Initial value : Read/Write : TCSR1 Bit : Initial value : Read/Write : Output Select 0 0 1 1 0 1 No change when compare match A occurs 0 is output when compare match A occurs 1 is output when compare match A occurs Output is inverted when compare match A occurs (toggle output) Output Select 0 0 1 1 0 1 No change when compare match B occurs 0 is output when compare match B occurs 1 is output when compare match B occurs Output is inverted when compare match B occurs (toggle output) A/D Trigger Enable (TCSR0 only) 0 1 A/D converter start requests by compare match A are disabled A/D converter start requests by compare match A are enabled Timer Overflow Flag 0 1 [Clearing condition] * Cleared by reading OVF when OVF = 1, then writing 0 to OVF [Setting condition] Set when TCNT overflows (changes from H'FF to H'00) Compare Match Flag A 0 [Clearing condition] * Cleared by reading CMFA when CMFA = 1, then writing 0 to CMFA * When the DTC is activated by a CMIA interrupt, while DISEL bit of MRB in DTC is 0. [Setting condition] Set when TCNT matches TCORA 1 Compare Match Flag B 0 [Clearing condition] * Cleared by reading CMFB when CMFB = 1, then writing 0 to CMFB * When the DTC is activated by a CMIB interrupt, while DISEL bit of MRB in DTC is 0. [Setting condition] Set when TCNT matches TCORB 1 Note: * Only 0 can be written to bits 7 to 5, to clear these flags. 833 TCORA0--Time Constant Register A0 TCORA1--Time Constant Register A1 TCORA0 Bit : 15 1 14 1 13 1 12 1 11 1 10 1 9 1 8 1 H'FFB4 H'FFB5 8-Bit Timer Channel 0 8-Bit Timer Channel 1 TCORA1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W TCORB0--Time Constant Register B0 TCORB1--Time Constant Register B1 TCORB0 Bit : 15 1 14 1 13 1 12 1 11 1 10 1 9 1 8 1 H'FFB6 H'FFB7 8-Bit Timer Channel 0 8-Bit Timer Channel 1 TCORB1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W TCNT0--Timer Counter 0 TCNT1--Timer Counter 1 TCNT0 Bit : 15 0 14 0 13 0 12 0 11 0 10 0 9 0 8 0 H'FFB8 H'FFB9 8-Bit Timer Channel 0 8-Bit Timer Channel 1 TCNT1 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 0 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W 834 TCSR--Timer Control/Status Register Bit : 7 OVF 6 WT/IT 0 R/W 5 TME 0 R/W 4 -- 1 -- 3 -- 1 -- H'FFBC (W) H'FFBC (R) 2 CKS2 0 R/W 1 CKS1 0 R/W 0 CKS0 0 R/W WDT Initial value : 0 Read/Write : R/(W)* Clock Select CKS2 CKS1 CKS0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 Clock Overflow period* (when o = 20 MHz) 819.2s 1.6ms 6.6ms 26.2ms 104.9ms 419.4ms 1.68s o/2 (initial value) 25.6s o/64 o/128 o/512 o/2048 o/8192 o/32768 o/131072 Timer Enable 0 1 Note: * The overflow period is the time from when TCNT starts counting up from H'00 until overflow occurs. TCNT is initialized to H'00 and halted TCNT counts Timer Mode Select 0 1 Overflow Flag 0 1 [Clearing condition] Cleared by reading TCSR when OVF = 1, then writing 0 to OVF [Setting condition] Set when TCNT overflows from H'FF to H'00 in interval timer mode Interval timer mode: Sends the CPU an interval timer interrupt request (WOVI) when TCNT overflows Watchdog timer mode: Generates the WDTOVF signal when TCNT overflows The method for writing to TCSR is different from that for general registers to prevent inadvertent overwriting. For details see section 11.2.4, Notes on Register Access. Note: * Can only be written with 0 for flag clearing. 835 TCNT--Timer Counter Bit : 7 0 R/W 6 0 R/W 5 0 R/W 4 0 R/W H'FFBC (W) H'FFBD (R) 3 0 R/W 2 0 R/W 1 0 R/W 0 0 R/W WDT Initial value : Read/Write : The method for writing to TCNT is different from that for general registers to prevent inadvertent overwriting. For details, see section 11.2.4, Notes on Register Access. RSTCSR--Reset Control/Status Register Bit : 7 WOVF Initial value : Read/Write : 0 R/(W)* 6 RSTE 0 R/W 5 RSTS 0 R/W 4 -- 1 -- H'FFBE (W) H'FFBF (R) 3 -- 1 -- 2 -- 1 -- 1 -- 1 -- 0 WDT -- 1 -- Reset Select 0 1 Reset Enable 0 1 Reset signal is not generated if TCNT overflows* Reset signal is generated if TCNT overflows Power-on reset Manual reset Note: * The modules H8S/2355 Series are not reset, but TCNT and TCSR in WDT are reset. Watchdog Timer Overflow Flag 0 1 [Clearing condition] Cleared by reading TCSR when WOVF = 1, then writing 0 to WOVF [Setting condition] Set when TCNT overflows (changed from H'FF to H'00) during watchdog timer operation Note: * Can only be written with 0 for flag clearing. The method for writing to RSTCSR is different from that for general registers to prevent inadvertent overwriting. For details see section 11.2.4, Notes on Register Access. 836 TSTR--Timer Start Register Bit : 7 -- Initial value : Read/Write : 0 -- 6 -- 0 -- 5 CST5 0 R/W 4 CST4 0 R/W H'FFC0 3 CST3 0 R/W 2 CST2 0 R/W 1 CST1 0 R/W 0 CST0 0 R/W TPU Counter Start 0 1 TCNTn count operation is stopped TCNTn performs count operation (n = 5 to 0) Note: If 0 is written to the CST bit during operation with the TIOC pin designated for output, the counter stops but the TIOC pin output compare output level is retained. If TIOR is written to when the CST bit is cleared to 0, the pin output level will be changed to the set initial output value. TSYR--Timer Synchro Register Bit : 7 -- Initial value : Read/Write : 0 -- 6 -- 0 -- 5 SYNC5 0 R/W 4 SYNC4 0 R/W H'FFC1 3 SYNC3 0 R/W 2 SYNC2 0 R/W 1 SYNC1 0 R/W 0 SYNC0 0 R/W TPU Timer Synchronization 0 1 TCNTn operates independently (TCNT presetting/ clearing is unrelated to other channels) TCNTn performs synchronous operation TCNT synchronous presetting/synchronous clearing is possible (n = 5 to 0) Notes: 1. To set synchronous operation, the SYNC bits for at least two channels must be set to 1. 2. To set synchronous clearing, in addition to the SYNC bit , the TCNT clearing source must also be set by means of bits CCLR2 to CCLR0 in TCR. 837 FLMCR1--Flash Memory Control Register 1 Bit : 7 FWE Initial value : Read/Write : --* R 6 SWE 0 R/W 5 -- 0 -- 4 -- 0 -- H'FFC8 3 EV 0 R/W 2 PV 0 R/W 1 E 0 R/W FLASH 0 P 0 R/W Program 0 1 Program mode cleared Transition to program mode [Setting condition] When FWE = 1, SWE = 1, and PSU = 1 Erase 0 1 Erase mode cleared Transition to erase mode [Setting condition] When FWE = 1, SWE = 1, and ESU = 1 Software Write Enable 0 1 Writes disabled Writes enabled [Setting condition] When FWE = 1 0 1 Program-Verify 0 1 Program-verify mode cleared Transition to program-verify mode [Setting condition] When FWE = 1 and SWE = 1 Erase-Verify Erase-verify mode cleared Transition to erase-verify mode [Setting condition] When FWE = 1 and SWE = 1 Flash Write Enable 0 1 When a low level is input to the FWE pin (hardware-protected state) When a high level is input to the FWE pin Note: * Determined by the state of the FWE pin. 838 FLMCR2--Flash Memory Control Register 2 Bit : 7 FLER Initial value : Read/Write : 0 R 6 -- 0 -- 5 -- 0 -- 4 -- 0 -- H'FFC9 3 -- 0 -- 2 -- 0 -- 1 ESU 0 R/W FLASH 0 PSU 0 R/W Program Setup 0 1 Program setup cleared Program setup [Setting condition] When FWE = 1, and SWE = 1 Erase Setup 0 1 Erase setup cleared Erase setup [Setting condition] When FWE = 1, and SWE = 1 Flash Memory Error 0 Flash memory is operating normally Flash memory program/erase protection (error protection) is disabled [Clearing condition] Reset or hardware standby mode An error has occurred during flash memory programming/erasing Flash memory program/erase protection (error protection) is enabled [Setting condition] See section 19.10.3, Error Protection 1 839 EBR1--Erase Block Register 1 EBR2--Erase Block Register 2 Bit EBR1 Initial value : Read/Write : Bit EBR2 Initial value : Read/Write : : : 7 -- 0 -- 7 EB7 0 R/W 6 -- 0 -- 6 EB6 0 R/W 5 -- 0 -- 5 EB5 0 R/W 4 -- 0 -- 4 EB4 0 R/W H'FFCA H'FFCB 3 -- 0 -- 3 EB3 0 R/W 2 -- 0 -- 2 EB2 0 R/W 1 EB9 0 R/W 1 EB1 0 R/W FLASH FLASH 0 EB8 0 R/W 0 EB0 0 R/W Flash Memory Erase Blocks Block (Size) EB0 (1 kbyte) EB1 (1 kbyte) EB2 (1 kbyte) EB3 (1 kbyte) EB4 (28 kbytes) EB5 (16 kbytes) EB6 (8 kbytes) EB7 (8 kbytes) EB8 (32 kbytes) EB9 (32 kbytes) Address H'000000 to H'0003FF H'000400 to H'0007FF H'000800 to H'000BFF H'000C00 to H'000FFF H'001000 to H'007FFF H'008000 to H'00BFFF H'00C000 to H'00DFFF H'00E000 to H'00FFFF H'010000 to H'017FFF H'018000 to H'01FFFF 840 TCR0--Timer Control Register 0 Bit : 7 CCLR2 Initial value : Read/Write : 0 R/W 6 CCLR1 0 R/W 5 CCLR0 0 R/W 4 0 R/W 3 0 R/W H'FFD0 2 TPSC2 0 R/W 1 TPSC1 0 R/W 0 TPSC0 0 R/W TPU0 CKEG1 CKEG0 Time Prescaler 0 0 0 1 1 0 1 1 0 0 1 1 0 1 Clock Edge 0 0 1 1 * Count at rising edge Count at falling edge Count at both edges *: Don't care Counter Clear 0 0 0 1 1 0 1 1 0 0 1 1 0 1 TCNT clearing disabled TCNT cleared by TGRA compare match/input capture TCNT cleared by TGRB compare match/input capture TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation*1 TCNT clearing disabled TCNT cleared by TGRC compare match/input capture*2 TCNT cleared by TGRD compare match/input capture*2 TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation*1 Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKB pin input External clock: counts on TCLKC pin input External clock: counts on TCLKD pin input Notes: 1. Synchronous operation setting is performed by setting the SYNC bit in TSYR to 1. 2. When TGRC or TGRD is used as a buffer register, TCNT is not cleared because the buffer register setting has priority, and compare match/input capture does not occur. 841 TMDR0--Timer Mode Register 0 Bit : 7 -- Initial value : Read/Write : 1 -- 6 -- 1 -- 5 BFB 0 R/W 4 BFA 0 R/W H'FFD1 3 MD3 0 R/W 2 MD2 0 R/W 1 MD1 0 R/W 0 MD0 0 R/W TPU0 Mode 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * * * Normal operation Reserved PWM mode 1 PWM mode 2 Phase counting mode 1 Phase counting mode 2 Phase counting mode 3 Phase counting mode 4 -- * : Don't care Notes: 1. MD3 is a reserved bit. In a write, it should always be written with 0. 2. Phase counting mode cannot be set for channels 0 and 3. In this case, 0 should always be written to MD2. TGRA Buffer Operation 0 1 TGRA operates normally TGRA and TGRC used together for buffer operation TGRB Buffer Operation 0 1 TGRB operates normally TGRB and TGRD used together for buffer operation 842 TIOR0H--Timer I/O Control Register 0H Bit : 7 IOB3 Initial value : Read/Write : 0 R/W 6 IOB2 0 R/W 5 IOB1 0 R/W 4 IOB0 0 R/W 3 IOA3 0 R/W 2 IOA2 0 R/W H'FFD2 1 IOA1 0 R/W 0 IOA0 0 R/W TPU0 TGR0A I/O Control 0 0 0 0 TGR0A Output disabled is output 1 compare Initial output is 0 output 0 register 1 1 0 0 1 1 0 1 1 0 0 0 TGR0A is input 1 capture * register * Capture input source is TIOCA0 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT1 count-up/ source is channel count-down 1/count clock * : Don't care TGR0B Output disabled is output compare Initial output is register 0 output 0 output at compare match 1 output at compare match Toggle output at compare match Output disabled Initial output is 0 output 0 output at compare match 1 output at compare match Toggle output at compare match TGR0B Capture input is input source is compare TIOCB0 pin register Input capture at rising edge Input capture at falling edge Input capture at both edges 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 1 TGR0B I/O Control 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * * Capture input Input capture at TCNT1 count-up/ source is channel count-down*1 1/count clock * : Don't care Note: *1. When bits TPSC2 to TPSC0 in TCR1 are set to B'000, and o/1 is used as the TCNT1 count clock, this setting is invalid and input capture is not generated. 843 TIOR0L--Timer I/O Control Register 0L Bit : : Initial value : Read/Write : 7 IOD3 0 R/W 6 IOD2 0 R/W 5 IOD1 0 R/W 4 IOD0 0 R/W 3 IOC3 0 R/W 2 IOC2 0 R/W H'FFD3 1 IOC1 0 R/W 0 IOC0 0 R/W TPU0 TGR0C I/O Control 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR0C is input capture register *1 TGR0C Output disabled is output compare Initial output is register 0 output 0 output at compare match 1 output at compare match Toggle output at compare match Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Capture input source is TIOCC0 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT1 count-up/ source is channel count-down 1/count clock * : Don't care Note: 1. When the BFA bit in TMDR0 is set to 1 and TGR0C is used as a buffer register, this setting is invalid and input capture/output compare is not generated. TGR0D I/O Control 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR0D is input capture register *2 TGR0D Output disabled is output compare Initial output is register 0 output 0 output at compare match 1 output at compare match Toggle output at compare match Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Capture input source is TIOCD0 pin Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at TCNT1 count-up/ source is channel count-down*1 1/count clock * : Don't care Notes: 1. When bits TPSC2 to TPSC0 in TCR1 are set to B'000, and o/1 is used as the TCNT1 count clock, this setting is invalid and input capture is not generated. 2. When the BFB bit in TMDR0 is set to 1 and TGR0D is used as a buffer register, this setting is invalid and input capture/output compare is not generated. Note: When TGRC or TGRD is designated for buffer operation, this setting is invalid and the register operates as a buffer register. 844 TIER0--Timer Interrupt Enable Register 0 Bit : 7 TTGE Initial value : Read/Write : 0 R/W 6 -- 1 -- 5 -- 0 -- 4 TCIEV 0 R/W 3 H'FFD4 2 TGIEC 0 R/W 1 TGIEB 0 R/W 0 TGIEA 0 R/W TPU0 TGIED 0 R/W TGR Interrupt Enable A 0 1 Interrupt requests (TGIA) by TGFA bit disabled Interrupt requests (TGIA) by TGFA bit enabled TGR Interrupt Enable B 0 1 Interrupt requests (TGIB) by TGFB bit disabled Interrupt requests (TGIB) by TGFB bit enabled TGR Interrupt Enable C 0 1 Interrupt requests (TGIC) by TGFC bit disabled Interrupt requests (TGIC) by TGFC bit enabled TGR Interrupt Enable D 0 1 Interrupt requests (TGID) by TGFD bit disabled Interrupt requests (TGID) by TGFD bit enabled Overflow Interrupt Enable 0 1 Interrupt requests (TCIV) by TCFV disabled Interrupt requests (TCIV) by TCFV enabled A/D Conversion Start Request Enable 0 1 A/D conversion start request generation disabled A/D conversion start request generation enabled 845 TSR0--Timer Status Register 0 Bit : 7 -- 1 -- 6 -- 1 -- 5 -- 0 -- 4 TCFV 0 R/(W)* 3 TGFD 0 R/(W)* 2 TGFC 0 R/(W)* H'FFD5 1 TGFB 0 R/(W)* 0 TGFA 0 R/(W)* TPU0 Initial value : Read/Write : Input Capture/Output Compare Flag A 0 [Clearing condition] * When DTC is activated by TGIA interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFA after reading TGFA = 1 [Setting conditions] * When TCNT = TGRA while TGRA is functioning as output compare register * When TCNT value is transferred to TGRA by input capture signal while TGRA is functioning as input capture register 1 Input Capture/Output Compare Flag B 0 [Clearing condition] * When DTC is activated by TGIB interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFB after reading TGFB = 1 [Setting conditions] * When TCNT = TGRB while TGRB is functioning as output compare register * When TCNT value is transferred to TGRB by input capture signal while TGRB is functioning as input capture register 1 Input Capture/Output Compare Flag C 0 [Clearing condition] * When DTC is activated by TGIC interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFC after reading TGFC = 1 [Setting conditions] * When TCNT = TGRC while TGRC is functioning as output compare register * When TCNT value is transferred to TGRC by input capture signal while TGRC is functioning as input capture register 1 Input Capture/Output Compare Flag D 0 [Clearing condition] * When DTC is activated by TGID interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFD after reading TGFD = 1 [Setting conditions] * When TCNT = TGRD while TGRD is functioning as output compare register * When TCNT value is transferred to TGRD by input capture signal while TGRD is functioning as input capture register 1 Overflow Flag 0 1 [Clearing condition] When 0 is written to TCFV after reading TCFV = 1 [Setting conditions] When the TCNT value overflows (changes from H'FFFF to H'0000 ) Note: * Can only be written with 0 for flag clearing. 846 TCNT0--Timer Counter 0 Bit : 15 0 14 0 13 0 12 0 11 0 10 0 9 0 H'FFD6 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 TPU0 0 0 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Up-counter TGR0A--Timer General Register 0A TGR0B--Timer General Register 0B TGR0C--Timer General Register 0C TGR0D--Timer General Register 0D Bit : 15 1 14 1 13 1 12 1 11 1 10 1 9 1 8 1 H'FFD8 H'FFDA H'FFDC H'FFDE 7 1 6 1 5 1 4 1 3 1 2 1 1 1 TPU0 TPU0 TPU0 TPU0 0 1 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W 847 TCR1--Timer Control Register 1 Bit : 7 -- Initial value : Read/Write : 0 -- 6 CCLR1 0 R/W 5 CCLR0 0 R/W 4 0 R/W 3 0 H'FFE0 2 TPSC2 0 R/W 1 TPSC1 0 R/W 0 TPSC0 0 R/W TPU1 CKEG1 CKEG0 R/W Time Prescaler 0 0 0 1 1 0 1 1 0 0 1 1 0 1 Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKB pin input Internal clock: counts on o/256 Counts on TCNT2 overflow/underflow Note: This setting is ignored when channel 1 is in phase counting mode. Clock Edge 0 0 1 1 * Count at rising edge Count at falling edge Count at both edges *: Don't care Note: This setting is ignored when channel 1 is in phase counting mode. Counter Clear 0 0 1 1 0 1 TCNT clearing disabled TCNT cleared by TGRA compare match/input capture TCNT cleared by TGRB compare match/input capture TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation* Note: * Synchronous operating setting is performed by setting the SYNC bit in TSYR to 1. 848 TMDR1--Timer Mode Register 1 Bit : 7 -- Initial value : Read/Write : 1 -- 6 -- 1 -- 5 -- 0 -- 4 -- 0 -- H'FFE1 3 MD3 0 R/W 2 MD2 0 R/W 1 MD1 0 R/W 0 MD0 0 R/W TPU1 Mode 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * * * Normal operation Reserved PWM mode 1 PWM mode 2 Phase counting mode 1 Phase counting mode 2 Phase counting mode 3 1Phase counting mode 4 -- * : Don't care Notes: MD3 is a reserved bit. In a write, it should always be written with 0. 849 TIOR1--Timer I/O Control Register 1 Bit : 7 IOB3 Initial value : Read/Write : 0 R/W 6 IOB2 0 R/W 5 IOB1 0 R/W 4 IOB0 0 R/W 3 IOA3 0 R/W 2 IOA2 0 R/W H'FFE2 1 IOA1 0 R/W 0 IOA0 0 R/W TPU1 TGR1A I/O Control 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR1A is input capture register Capture input source is TIOCA1 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at generation of source is TGR0A channel 0/TGR0A compare match/ compare match/ input capture input capture * : Don't care TGR1B I/O Control 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 * * * TGR1B is input capture register Capture input source is TIOCB1 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges Capture input Input capture at generation of source is TGR0C TGR0B compare match/input compare match/ capture input capture * : Don't care TGR1B Output disabled is output compare Initial output is register 0 output TGR1A Output disabled is output compare Initial output is register 0 output 0 output at compare match 1 output at compare match Toggle output at compare match 0 output at compare match 1 output at compare match Toggle output at compare match 850 TIER1--Timer Interrupt Enable Register 1 Bit : 7 TTGE Initial value : Read/Write : 0 R/W 6 -- 1 -- 5 TCIEU 0 R/W 4 TCIEV 0 R/W 3 -- 0 -- H'FFE4 2 -- 0 -- 1 TGIEB 0 R/W 0 TGIEA 0 R/W TGI Interrupt Enable A 0 1 TPU1 Interrupt requests (TGIA) by TGFA bit disabled Interrupt requests (TGIA) by TGFA bit enabled TGR Interrupt Enable B 0 1 Interrupt requests (TGIB) by TGFB bit disabled Interrupt requests (TGIB) by TGFB bit enabled Overflow Interrupt Enable 0 1 Interrupt requests (TCIV) by TCFV disabled Interrupt requests (TCIV) by TCFV enabled Underflow Interrupt Enable 0 1 Interrupt requests (TCIU) by TCFU disabled Interrupt requests (TCIU) by TCFU enabled A/D Conversion Start Request Enable 0 1 A/D conversion start request generation disabled A/D conversion start request generation enabled 851 TSR1--Timer Status Register 1 Bit : 7 TCFD 1 R 6 -- 1 -- 5 TCFU 0 R/(W)* 4 TCFV 0 R/(W)* 3 -- 0 -- 2 -- 0 -- H'FFE5 1 TGFB 0 R/(W)* 0 TGFA 0 R/(W)* TPU1 Initial value : Read/Write : Input Capture/Output Compare Flag A 0 [Clearing condition] * When DTC is activated by TGIA interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFA after reading TGFA = 1 [Setting conditions] * When TCNT = TGRA while TGRA is functioning as output compare register * When TCNT value is transferred to TGRA by input capture signal while TGRA is functioning as input capture register 1 Input Capture/Output Compare Flag B 0 [Clearing condition] * When DTC is activated by TGIB interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFB after reading TGFB = 1 [Setting conditions] * When TCNT = TGRB while TGRB is functioning as output compare register * When TCNT value is transferred to TGRB by input capture signal while TGRB is functioning as input capture register 1 Overflow Flag 0 1 Underflow Flag 0 1 Count Direction Flag 0 1 TCNT counts down TCNT counts up [Clearing condition] When 0 is written to TCFU after reading TCFU = 1 [Setting conditions] When the TCNT value underflows (changes from H'0000 to H'FFFF) [Clearing condition] When 0 is written to TCFV after reading TCFV = 1 [Setting conditions] When the TCNT value overflows (changes from H'FFFF to H'0000 ) Note: * Can only be written with 0 for flag clearing. 852 TCNT1--Timer Counter 1 Bit : 15 0 14 0 13 0 12 0 11 0 10 0 9 0 8 0 H'FFE6 7 0 6 0 5 0 4 0 3 0 2 0 1 0 TPU1 0 0 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Up/down-counter* Note: * This timer counter can be used as an up/down-counter only in phase counting mode or when performing overflow/underflow counting on another channel. In other cases it functions as an up-counter. TGR1A--Timer General Register 1A TGR1B--Timer General Register 1B Bit : 15 1 14 1 13 1 12 1 11 1 10 1 9 1 H'FFE8 H'FFEA 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 TPU1 TPU1 0 1 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W 853 TCR2--Timer Control Register 2 Bit : 7 -- Initial value : Read/Write : 0 -- 6 CCLR1 0 R/W 5 CCLR0 0 R/W 4 0 R/W 3 0 H'FFF0 2 TPSC2 0 R/W 1 TPSC1 0 R/W 0 TPSC0 0 R/W TPU2 CKEG1 CKEG0 R/W Time Prescaler 0 0 0 1 1 0 1 1 0 0 1 1 0 1 Internal clock: counts on o/1 Internal clock: counts on o/4 Internal clock: counts on o/16 Internal clock: counts on o/64 External clock: counts on TCLKA pin input External clock: counts on TCLKB pin input External clock: counts on TCLKC pin input Internal clock: counts on o/1024 Note: This setting is ignored when channel 2 is in phase counting mode. Clock Edge 0 0 1 1 * Count at rising edge Count at falling edge Count at both edges *: Don't care Note: This setting is ignored when channel 2 is in phase counting mode. Counter Clear 0 0 1 1 0 1 TCNT clearing disabled TCNT cleared by TGRA compare match/input capture TCNT cleared by TGRB compare match/input capture TCNT cleared by counter clearing for another channel performing synchronous clearing/synchronous operation* Note: * Synchronous operating setting is performed by setting the SYNC bit TSYR to 1. 854 TMDR2--Timer Mode Register 2 Bit : 7 -- Initial value : Read/Write : 1 -- 6 -- 1 -- 5 -- 0 -- 4 -- 0 -- H'FFF1 3 MD3 0 R/W 2 MD2 0 R/W 1 MD1 0 R/W 0 MD0 0 R/W TPU2 Mode 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * * * Normal operation Reserved PWM mode 1 PWM mode 2 Phase counting mode 1 Phase counting mode 2 Phase counting mode 3 Phase counting mode 4 -- * : Don't care Notes: MD3 is a reserved bit. In a write, it should always be written with 0. 855 TIOR2--Timer I/O Control Register 2 Bit : 7 IOB3 Initial value : Read/Write : 0 R/W 6 IOB2 0 R/W 5 IOB1 0 R/W 4 IOB0 0 R/W 3 IOA3 0 R/W 2 IOA2 0 R/W H'FFF2 1 IOA1 0 R/W 0 IOA0 0 R/W TPU2 TGR2A I/O Control 0 0 0 0 TGR2A is output 1 compare 0 register 1 1 0 0 1 1 0 1 1 * 0 0 TGR2A is input 1 capture * register Capture input source is TIOCA2 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges * : Don't care TGR2B I/O Control 0 0 0 0 1 1 0 1 1 0 0 1 1 0 1 1 * 0 0 1 1 * TGR2B is input capture register Capture input source is TIOCB2 pin Output disabled Initial output is 1 output 0 output at compare match 1 output at compare match Toggle output at compare match Input capture at rising edge Input capture at falling edge Input capture at both edges * : Don't care TGR2B is output compare register Output disabled Initial output is 0 output 0 output at compare match 1 output at compare match Toggle output at compare match Output disabled Initial output is 0 output 0 output at compare match 1 output at compare match Toggle output at compare match 1 1 856 TIER2--Timer Interrupt Enable Register 2 Bit : 7 TTGE Initial value : Read/Write : 0 R/W 6 -- 1 -- 5 TCIEU 0 R/W 4 TCIEV 0 R/W 3 -- 0 -- H'FFF4 2 -- 0 -- 1 TGIEB 0 R/W 0 TGIEA 0 R/W TGR Interrupt Enable A 0 1 TPU2 Interrupt requests (TGIA) by TGFA bit disabled Interrupt requests (TGIA) by TGFA bit enabled TGR Interrupt Enable B 0 1 Interrupt requests (TGIB) by TGFB bit disabled Interrupt requests (TGIB) by TGFB bit enabled Overflow Interrupt Enable 0 1 Interrupt requests (TCIV) by TCFV disabled Interrupt requests (TCIV) by TCFV enabled Underflow Interrupt Enable 0 1 Interrupt requests (TCIU) by TCFU disabled Interrupt requests (TCIU) by TCFU enabled A/D Conversion Start Request Enable 0 1 A/D conversion start request generation disabled A/D conversion start request generation enabled 857 TSR2--Timer Status Register 2 Bit : 7 TCFD 1 R 6 -- 1 -- 5 TCFU 0 R/(W)* 4 TCFV 0 R/(W)* 3 -- 0 -- 2 -- 0 -- H'FFF5 1 TGFB 0 R/(W)* 0 TGFA 0 R/(W)* TPU2 Initial value : Read/Write : Input Capture/Output Compare Flag A 0 [Clearing condition] * When DTC is activated by TGIA interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFA after reading TGFA = 1 [Setting conditions] * When TCNT = TGRA while TGRA is functioning as output compare register * When TCNT value is transferred to TGRA by input capture signal while TGRA is functioning as input capture register 1 Input Capture/Output Compare Flag B 0 [Clearing condition] * When DTC is activated by TGIB interrupt while DISEL bit of MRB in DTC is 0 * When 0 is written to TGFB after reading TGFB = 1 [Setting conditions] * When TCNT = TGRB while TGRB is functioning as output compare register * When TCNT value is transferred to TGRB by input capture signal while TGRB is functioning as input capture register 1 Overflow Flag 0 1 Underflow Flag 0 1 Count Direction Flag 0 1 TCNT counts down TCNT counts up [Clearing condition] When 0 is written to TCFU after reading TCFU = 1 [Setting conditions] When the TCNT value underflows (changes from H'0000 to H'FFFF) [Clearing condition] When 0 is written to TCFV after reading TCFV = 1 [Setting conditions] When the TCNT value overflows (changes from H'FFFF to H'0000 ) Note: * Can only be written with 0 for flag clearing. 858 TCNT2--Timer Counter 2 Bit : 15 0 14 0 13 0 12 0 11 0 10 0 9 0 8 0 H'FFF6 7 0 6 0 5 0 4 0 3 0 2 0 1 0 TPU2 0 0 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Up/down-counter* Note: * This timer counter can be used as an up/down-counter only in phase counting mode or when performing overflow/underflow counting on another channel. In other cases it functions as an up-counter. TGR2A--Timer General Register 2A TGR2B--Timer General Register 2B Bit : 15 1 14 1 13 1 12 1 11 1 10 1 9 1 8 1 H'FFF8 H'FFFA 7 1 6 1 5 1 4 1 3 1 2 1 1 1 TPU2 TPU2 0 1 Initial value : Read/Write : R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W 859 Appendix C I/O Port Block Diagrams C.1 Port 1 Block Diagram Reset Internal data bus Internal address bus TPU module Output compare output/PWM output enable Output compare output/PWM output Input capture input Legend WDDR1 : Write to P1DDR WDR1 : Write to P1DR RDR1 : Read P1DR RPOR1 : Read port 1 n = 0 or 1 R Q D P1nDDR C WDDR1 Reset Mode 1/2/3/7 P1n Mode 4/5/6 R Q D P1nDR C WDR1 RDR1 RPOR1 Figure C.1 (a) Port 1 Block Diagram (Pins P1 0 and P11) 859 Reset Internal address bus TPU module Output compare output/PWM output enable Output compare output/PWM output RDR1 Input capture input External clock input WDDR1 Reset Mode 1/2/3/7 P1n Mode 4/5/6 R Q D P1nDR C WDR1 RPOR1 Legend WDDR1 : Write to P1DDR WDR1 : Write to P1DR RDR1 : Read P1DR RPOR1 : Read port 1 n = 2 or 3 Figure C.1 (b) Port 1 Block Diagram (Pins P12 and P13) 860 Internal data bus R Q D P1nDDR C Reset R Q D P1nDDR C WDDR1 Reset R Q D P1nDR C WDR1 TPU module Output compare output/ PWM output enable Output compare output/ PWM output RDR1 P1n RPOR1 Input capture input Legend WDDR1 : Write to P1DDR WDR1 : Write to P1DR RDR1 : Read P1DR RPOR1 : Read port 1 n = 4 or 6 Figure C.1 (c) Port 1 Block Diagram (Pins P14 and P16) Internal data bus 861 Reset Internal data bus TPU module Output compare output/ PWM output enable Output compare output/ PWM output RDR1 Input capture input External clock input Legend WDDR1 : Write to P1DDR WDR1 : Write to P1DR RDR1 : Read P1DR RPOR1 : Read port 1 n = 5 or 7 R Q D P1nDDR C WDDR1 Reset R Q D P1nDR C WDR1 P1n RPOR1 Figure C.1 (d) Port 1 Block Diagram (Pins P15 and P17) 862 C.2 Port 2 Block Diagram Reset R Q D P2nDDR C WDDR2 Reset R Q D P2nDR C WDR2 TPU module Output compare output/ PWM output enable Output compare output/ PWM output P2n * RDR2 RPOR2 Input capture input Legend WDDR2 : Write to P2DDR WDR2 : Write to P2DR RDR2 : Read P2DR RPOR2 : Read port 2 n = 0 or 1 Note: * Priority order: Output compare output/PWM output > DR output Figure C.2 (a) Port 2 Block Diagram (Pins P2 0 and P21) Internal data bus 863 Reset R Q D P2nDDR C WDDR2 Reset R Q D P2nDR C WDR2 TPU module Output compare output/ PWM output enable Output compare output/ PWM output P2n * RDR2 RPOR2 Internal data bus Input capture input 8-bit timer module Counter external reset input Legend WDDR2 : Write to P2DDR WDR2 : Write to P2DR RDR2 : Read P2DR RPOR2 : Read port 2 n = 2 or 4 Note: * Priority order: Output compare output/PWM output > DR output Figure C.2 (b) Port 2 Block Diagram (Pins P22 and P24) 864 Reset R Q D P2nDDR C WDDR2 Reset R Q D P2nDR C WDR2 TPU module Output compare output/ PWM output enable Output compare output/ PWM output P2n * RDR2 RPOR2 Internal data bus Input capture input 8-bit timer module Counter external clock input Legend WDDR2 : Write to P2DDR WDR2 : Write to P2DR RDR2 : Read P2DR RPOR2 : Read port 2 n = 3 or 5 Note: * Priority order: Output compare output/PWM output > DR output Figure C.2 (c) Port 2 Block Diagram (Pins P23 and P25) 865 Reset R Q D P2nDDR C WDDR2 Reset R Q D P2nDR C * WDR2 P2n RDR2 RPOR2 Legend WDDR2 : Write to P2DDR WDR2 : Write to P2DR RDR2 : Read P2DR RPOR2 : Read port 2 n = 6 or 7 Note: * Priority order: Output compare output/PWM output > compare match output > DR output Figure C.2 (d) Port 2 Block Diagram (Pins P26 and P27) 866 Internal data bus 8-bit timer Compare-match output enable Compare-match output TPU module Output compare output/ PWM output enable Output compare output/ PWM output Input capture input C.3 Port 3 Block Diagram Reset R Q D P3nDDR C WDDR3 *1 Reset R Q D P3nDR C WDR3 *2 Reset R Q D P3nODR C WODR3 RODR3 SCI module Serial transmit enable Serial transmit data RDR3 P3n RPOR3 Legend WDDR3 : Write to P3DDR WDR3 : Write to P3DR WODR3 : Write to P3ODR RDR3 : Read P3DR RPOR3 : Read port 3 RODR3 : Read P3ODR n = 0 or 1 Notes: 1. Output enable signal 2. Open drain control signal Figure C.3 (a) Port 3 Block Diagram (Pins P3 0 and P31) Internal data bus 867 Reset R Q D P3nDDR C *1 WDDR3 Reset P3n R Q D P3nDR C *2 WDR3 Reset R Q D P3nODR C WODR3 RODR3 SCI module Serial receive data enable RDR3 RPOR3 Internal data bus Serial receive data Legend WDDR3 WDR3 WODR3 RDR3 RPOR3 RODR3 n = 2 or 3 : Write to P3DDR : Write to P3DR : Write to P3ODR : Read P3DR : Read port 3 : Read P3ODR Notes: 1. Output enable signal 2. Open drain control signal Figure C.3 (b) Port 3 Block Diagram (Pins P32 and P33) 868 Reset R Q D P3nDDR C WDDR3 *2 Reset R Q D P3nDR C WDR3 *3 Reset R Q D P3nODR C WODR3 RODR3 SCI module Serial clock output enable Serial clock output RDR3 Serial clock input enable P3n *1 RPOR3 Legend WDDR3 : Write to P3DDR WDR3 : Write to P3DR WODR3 : Write to P3ODR RDR3 : Read P3DR RPOR3 : Read port 3 RODR3 : Read P3ODR n = 4 or 5 Notes: 1. Priority order: Serial clock input > serial clock output > DR output 2. Output enable signal 3. Open drain control signal Figure C.3 (c) Port 3 Block Diagram (Pins P34 and P35) Internal data bus Serial clock input 869 C.4 Port 4 Block Diagram Internal data bus A/D converter module Analog input RPOR4 : Read port 4 n = 0 to 5 Internal data bus A/D converter module Analog input D/A converter module Output enable Analog output RPOR4 P4n Figure C.4 (a) Port 4 Block Diagram (Pins P4 0 to P45) RPOR4 P4n RPOR4 : Read port 4 n = 6 or 7 Figure C.4 (b) Port 4 Block Diagram (Pins P46 and P47) 870 C.5 Port A Block Diagram Reset R Q D PAnPCR C WPCRA RPCRA Mode 4/5*3 Reset S R Q D PAnDDR C WDDRA *1 Reset R Q D PAnDR C WDRA *2 Reset R Q D PAnODR C WODRA RODRA PAn Mode 1/2/3/6/7 Mode 4/5 RDRA RPORA Legend WDDRA : Write to PADDR WDRA : Write to PADR WODRA : Write to PAODR WPCRA : Write to PAPCR RDRA : Read PADR RPORA : Read port A RODRA : Read PAODR RPCRA : Read PAPCR n = 0 to 3 Notes: 1. Output enable signal 2. Open drain control signal 3. Set priority Figure C.5 Port A Block Diagram (Pins PA0 to PA 3) 871 Internal address bus Internal data bus C.6 Port B Block Diagram Reset R Q D PBnPCR C WPCRB RPCRB Mode 1/4/5* Reset S R Q D PBnDDR C WDDRB Reset R Q D PBnDR C WDRB PBn Mode 3/7 Mode 1/2/4/5/6 RDRB RPORB Legend WDDRB : Write to PBDDR WDRB : Write to PBDR WPCRB : Write to PBPCR RDRB : Read PBDR RPORB : Read port B RPCRB : Read PBPCR n = 0 to 7 Note: * Set priority Figure C.6 Port B Block Diagram (Pin PBn) 872 Internal address bus Internal data bus C.7 Port C Block Diagram Reset R Q D PCnPCR C WPCRC RPCRC Internal data bus Mode 1/4/5* Reset S R Q D PCnDDR C WDDRC Reset R Q D PCnDR C WDRC PCn Mode 3/7 Mode 1/2/4/5/6 RDRC RPORC Legend WDDRC : Write to PCDDR WDRC : Write to PCDR WPCRC : Write to PCPCR RDRC : Read PCDR RPORC : Read port C RPCRC : Read PCPCR n = 0 to 7 Note: * Set priority Figure C.7 Port C Block Diagram (Pin PCn) 873 Internal address bus C.8 Port D Block Diagram Reset Internal upper data bus Internal lower data bus R Q D PDnPCR C WPCRD RPCRD Reset R Q D PDnDDR C WDDRD Reset R Q D PDnDR C WDRD External address write PDn Mode 3/7 Mode 1/2/4/5/6 External address upper write External address lower write RDRD RPORD Legend WDDRD : Write to PDDDR WDRD : Write to PDDR WPCRD : Write to PDPCR RDRD : Read PDDR RPORD : Read port D RPCRD : Read PDPCR n = 0 to 7 External address upper read External address lower read Figure C.8 Port D Block Diagram (Pin PDn) 874 C.9 Port E Block Diagram Reset Internal upper data bus Internal lower data bus R Q D PEnPCR C WPCRE RPCRE Reset R Q D PEnDDR C WDDRE Reset R Q D PEnDR C WDRE External address write PEn Mode 3/7 Mode 1/2/4/5/6 RDRE RPORE Legend WDDRE : Write to PEDDR WDRE : Write to PEDR WPCRE : Write to PEPCR RDRE : Read PEDR RPORE : Read port E RPCRE : Read PEPCR n = 0 to 7 External address lower read Figure C.9 Port E Block Diagram (Pin PEn) 875 C.10 Port F Block Diagram Internal data bus Bus controller BRLE bit Bus request input Interrupt controller IRQ interrupt input Legend WDDRF : Write to PFDDR WDRF : Write to PFDR RDRF : Read PFDR RPORF : Read port F Reset R Q D PF0DDR C Mode 1/2/4/5/6 WDDRF Reset PF0 R Q D PF0DR C WDRF RDRF RPORF Figure C.10 (a) Port F Block Diagram (Pin PF0) 876 Reset R Q D PF1DDR C WDDRF Reset R Q D PF1DR C WDRF Mode 1/2/4/5/6 PF1 RDRF RPORF Interrupt controller Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F IRQ interrupt input Figure C.10 (b) Port F Block Diagram (Pin PF1) Internal data bus Bus controller BRLE output Bus request acknowledge output 877 Reset R Q D PF2DDR C WDDRF Reset Mode 1/2/4/5/6 PF2 R Q D PF2DR C WDRF RDRF RPORF Internal data bus Bus controller Wait enable Wait input Interrupt controller IRQ interrupt input Legend WDDRF : Write to PFDDR WDRF : Write to PFDR RDRF : Read PFDR RPORF : Read port F Figure C.10 (c) Port F Block Diagram (Pin PF2) 878 Reset R Q D PF3DDR C WDDRF Mode 3/7 PF3 Mode 1/2/4/5/6 Reset R Q D PF3DR C WDRF Mode 1/2/4/5/6 Internal data bus Bus controller LWR output Interrupt controller IRQ interrupt input RDRF RPORF Legend WDDRF : Write to PFDDR WDRF : Write to PFDR RDRF : Read PFDR RPORF : Read port F Figure C.10 (d) Port F Block Diagram (Pin PF3) 879 Reset R Q D PF4DDR C WDDRF Mode 3/7 PF4 Mode 1/2/4/5/6 Reset R Q D PF4DR C WDRF Mode 1/2/4/5/6 Internal data bus Bus controller HWR output RDRF RPORF Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C.10 (e) Port F Block Diagram (Pin PF4) 880 Reset R Q D PF5DDR C WDDRF Mode 3/7 PF5 Mode 1/2/4/5/6 Reset R Q D PF5DR C WDRF Mode 1/2/4/5/6 RDRF RPORF Legend WDDRF WDRF RDRF RPORF : Write to PFDDR : Write to PFDR : Read PFDR : Read port F Figure C.10 (f) Port F Block Diagram (Pin PF5) Internal data bus Bus controller RD output 881 Reset R Q D PF6DDR C WDDRF Mode 3/7 PF6 Mode 1/2/4/5/6 Reset R Q D PF6DR C WDRF Mode 1/2/4/5/6 RDRF RPORF Legend WDDRF : Write to PFDDR WDRF : Write to PFDR RDRF : Read PFDR RPORF : Read port F Figure C.10 (g) Port F Block Diagram (Pin PF6) 882 Internal data bus Bus controller AS output Mode 1/2/4/5/6* Reset S R Q D PF7DDR C WDDRF Reset PF7 R Q D PF7DR C WDRF RDRF RPORF Legend WDDRF : Write to PFDDR WDRF : Write to PFDR RDRF : Read PFDR RPORF : Read port F Note: * Set priority Figure C.10 (h) Port F Block Diagram (Pin PF7) Internal data bus o 883 C.11 Port G Block Diagram Reset R Q D PG0DDR C WDDRG Reset PG0 R Q D PG0DR C WDRG RDRG RPORG A/D converter A/D converter external trigger input Interrupt controller Legend WDDRG : Write to PGDDR WDRG : Write to PGDR RDRG : Read PGDR RPORG : Read port G IRQ interrupt input Figure C.11 (a) Port G Block Diagram (Pin PG0) 884 Internal data bus Reset R Q D PG1DDR C WDDRG Mode 1/2/3/7 PG1 Mode 4/5/6 Reset R Q D PG1DR C WDRG Internal data bus Bus controller Chip select Interrupt controller IRQ interrupt input RDRG RPORG Legend WDDRG WDRG RDRG RPORG : Write to PGDDR : Write to PGDR : Read PGDR : Read port G Figure C.11 (b) Port G Block Diagram (Pin PG1) 885 Reset R Q D PGnDDR C WDDRG Mode 1/2/3/7 PGn Mode 4/5/6 Reset R Q D PGnDR C WDRG Internal data bus Bus controller Chip select RDRG RPORG Legend WDDRG WDRG RDRG RPORG n = 2, 3 : Write to PGDDR : Write to PGDR : Read PGDR : Read port G Figure C.11 (c) Port G Block Diagram (Pins PG 2 and PG3) 886 Mode Mode 1/4/5 2/3/6/7 Reset WDDRG Reset Mode 3/7 PG4 Mode 1/2/4/5/6 R Q D PG4DR C WDRG RDRG RPORG Legend WDDRG WDRG RDRG RPORG : Write to PGDDR : Write to PGDR : Read PGDR : Read port G Figure C.11 (d) Port G Block Diagram (Pin PG4) Internal data bus Bus controller Chip select S R Q D PG4DDR C 887 Appendix D Pin States D.1 Port States in Each Mode I/O Port States in Each Processing State Program Execution State Sleep Mode I/O port Table D.1 Port Name Pin Name P17/TIOCB2/ TCLKD P16/TIOCA2 P15/TIOCB1/ TCLKC P14/TIOCA1 P13/TIOCD0/ TCLKB/A23 P12/TIOCC0/ TCLKA/A22 P11/TIOCB0/ A21 P10/TIOCA0/ A20 Port 2 Port 3 P47/DA1 MCU Operating Mode 1 to 7 PowerOn Reset T Manual Reset kept Hardware Software Standby Standby Mode Mode T kept Bus Release State kept 1 to 3, 7 4 to 6 T T kept kept T T kept kept I/O port [DDR = 0] Input port [DDR = 1] Address output [DDR * OPE = 0] T T [DDR * OPE = 1] kept 1 to 7 1 to 7 1 to 7 T T T kept kept T T T T kept kept [DAOE1 = 1] kept [DAOE1 = 0] T kept kept kept I/O port I/O port I/O port P46/DA0 1 to 7 T T T [DAOE0 = 1] kept [DAOE0 = 0] T kept I/O port P45 to P40 1 to 7 T T T T T Input port 888 Table D.1 I/O Port States in Each Processing State (cont) Program Execution State Sleep Mode I/O port Address output Port Name Pin Name Port A MCU Operating Mode 1 to 3, 7 4, 5 PowerOn Reset T L Manual Reset kept kept Hardware Software Standby Standby Mode Mode T T kept [OPE = 0] T [OPE = 1] kept Bus Release State kept T 6 T kept T [DDR * OPE = 0] T T [DDR * OPE = 1] kept [OPE = 0] T [OPE = 1] kept T [DDR = 0] Input port [DDR = 1] Address output Address output Port B 1, 4, 5 L kept T 2, 6 T kept T [DDR * OPE = 0] T T [DDR * OPE = 1] kept kept [OPE = 0] T [OPE = 1] kept kept T [DDR = 0] Input port [DDR = 1] Address output I/O port Address output 3, 7 Port C 1, 4, 5 T L kept kept T T 2, 6 T kept T [DDR * OPE = 0] T T [DDR * OPE = 1] kept kept T kept kept T kept kept T kept kept T kept [DDR = 0] Input port [DDR = 1] Address output I/O port Data bus I/O port I/O port Data bus I/O port 3, 7 Port D 1, 2, 4 to 6 3, 7 Port E 1, 2, 8 bit 4 to 6 bus T T T T kept T* kept kept T* kept T T T T T T 16 bit T bus 3, 7 T 889 Table D.1 I/O Port States in Each Processing State (cont) Program Execution State Sleep Mode [DDR = 0] Input port [DDR = 1] Clock output [DDR = 0] Input port [DDR = 1] Clock output AS, RD, HWR, LWR Port Name Pin Name PF7/o MCU Operating Mode 1, 2, 4 to 6 PowerOn Reset Clock output Manual Reset [DDR = 0] T [DDR = 1] Clock output kept Hardware Software Standby Standby Mode Mode T [DDR = 0] Input port [DDR = 1] H [DDR = 0] Input port [DDR = 1] H [OPE = 0] T [OPE = 1] H kept [WAITE = 0] kept [WAITE = 1] T kept [BRLE = 0] kept [BRLE = 1] H kept [BRLE = 0] kept [BRLE = 1] T kept Bus Release State [DDR = 0] Input port [DDR = 1] Clock output [DDR = 0] Input port [DDR = 1] Clock output T 3, 7 T T PF6/AS PF5/RD PF4/HWR PF3/LWR/ IRQ3 PF2/WAIT/ IRQ2 1, 2, 4 to 6 H H* T 3, 7 1, 2, 4 to 6 T T kept T kept [WAITE = 0] kept [WAITE = 1] T kept L I/O port [WAITE = 0] I/O port [WAITE = 1] WAIT I/O port [BRLE = 0] I/O port [BRLE = 1] BACK I/O port [BRLE = 0] I/O port [BRLE = 1] BREQ I/O port [DDR = 0] Input port [DDR = 1] CS0 I/O port [WAITE = 0] T kept [WAITE = 1] T kept [BRLE = 0] kept [BRLE = 1] BACK kept [BRLE = 0] kept [BRLE = 1] BREQ kept [DDR = 0] T [DDR = 1] H* kept T T 3, 7 PF1/BACK/ IRQ1 1, 2, 4 to 6 T T 3, 7 PF0/BREQ/ IRQ0 1, 2, 4 to 6 T T T T kept T 3, 7 PG 4/CS0 1, 4, 5 2, 6 T H T T T kept [DDR * OPE = 0] T T [DDR * OPE = 1] H kept kept 3, 7 T T 890 Table D.1 I/O Port States in Each Processing State (cont) Program Execution State Sleep Mode I/O port [DDR = 0] Input port [DDR = 1] CS1 to CS3 I/O port I/O port Port Name Pin Name PG 3/CS1 PG 2/CS2 PG 1/CS3/ IRQ7 MCU Operating Mode 1 to 3, 7 4 to 6 PowerOn Reset T T Manual Reset kept [DDR = 0] T [DDR = 1] H* kept kept Hardware Software Standby Standby Mode Mode T T kept Bus Release State kept [DDR * OPE = 0] T T [DDR * OPE = 1] H kept kept kept T PG 0/ADTRG/ 1 to 3, 7 IRQ6 4 to 6 T T T T Legend: H L T kept DDR OPE WAITE BRLE : High level : Low level : High impedance : Input port becomes high-impedance, output port retains state : Data direction register : Output port enable : Wait input enable : Bus release enable Note: * Indicates the state after completion of the executing bus cycle. 891 Appendix E Timing of Transition to and Recovery from Hardware Standby Mode Timing of Transition to Hardware Standby Mode (1) To retain RAM contents with the RAME bit set to 1 in SYSCR, drive the RES signal low at least 10 states before the STBY signal goes low, as shown below. RES must remain low until STBY signal goes low (delay from STBY low to RES high: 0 ns or more). STBY t110tcyc RES t20ns Figure E.1 Timing of Transition to Hardware Standby Mode (2) To retain RAM contents with the RAME bit cleared to 0 in SYSCR, or when RAM contents do not need to be retained, RES does not have to be driven low as in (1). Timing of Recovery from Hardware Standby Mode Drive the RES signal low and the NMI signal high approximately 100 ns or more before STBY goes high to execute a power-on reset. STBY t100ns RES tOSC tNMIRH NMI Figure E.2 Timing of Recovery from Hardware Standby Mode 892 Appendix F Product Code Lineup Table F.1 H8S/2345 Series Product Code Lineup Product Code HD6432345 Mark Code HD6432345(***)TE HD6432345(***)TF HD6432345(***)F HD6432345(***)FA ZTATTM HD6472345 HD6472345TE HD6472345TF HD6472345F HD6472345FA F-ZTATTM HD64F2345 HD64F2345TE HD64F2345TF HD64F2345F HD64F2345FA H8S/2344 Mask ROM HD6432344 HD6432344(***)TE HD6432344(***)TF HD6432344(***)F HD6432344(***)FA H8S/2343 Mask ROM HD6432343 HD6432343(***)TE HD6432343(***)TF HD6432343(***)F HD6432343(***)FA H8S/2341 Mask ROM HD6432341 HD6432341(***)TE HD6432341(***TF HD6432341(***)F HD6432341(***)FA H8S/2340 ROMless HD6412340 HD6412340TE HD6412340TF HD6412340F HD6412340FA Note: (***) indicates the ROM code. * TFP-100G is under development. 893 Package (Hitachi Package Code) 100-pin TQFP (TFP-100B) 100-pin TQFP (TFP-100G)* 100-pin QFP (FP-100A) 100-pin QFP (FP-100B) 100-pin TQFP (TFP-100B) 100-pin TQFP (TFP-100G)* 100-pin QFP (FP-100A) 100-pin QFP (FP-100B) 100-pin TQFP (TFP-100B) 100-pin TQFP (TFP-100G)* 100-pin QFP (FP-100A) 100-pin QFP (FP-100B) 100-pin TQFP (TFP-100B) 100-pin TQFP (TFP-100G)* 100-pin QFP (FP-100A) 100-pin QFP (FP-100B) 100-pin TQFP (TFP-100B) 100-pin TQFP (TFP-100G)* 100-pin QFP (FP-100A) 100-pin QFP (FP-100B) 100-pin TQFP (TFP-100B) 100-pin TQFP (TFP-100G)* 100-pin QFP (FP-100A) 100-pin QFP (FP-100B) 100-pin TQFP (TFP-100B) 100-pin TQFP (TFP-100G)* 100-pin QFP (FP-100A) 100-pin QFP (FP-100B) Product Type H8S/2345 Mask ROM Appendix G Package Dimensions Figures G.1 to G.4 show the package dimensions of the H8S/2345 Series. Unit: mm 16.0 0.2 14 75 76 16.0 0.2 51 50 100 1 *0.22 0.05 0.20 0.04 25 0.08 M 26 *0.17 0.05 0.15 0.04 1.20 Max 1.00 0.5 1.0 1.0 0 - 8 0.5 0.1 0.10 0.10 0.10 *Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) TFP-100B -- Conforms 0.5 g Figure G.1 TFP-100B Package Dimensions 894 14.0 0.2 12 75 76 14.0 0.2 Unit: mm 51 50 0.4 100 1 *0.18 0.05 0.16 0.04 25 0.07 M 26 1.2 *0.17 0.05 0.15 0.04 1.20 Max 1.00 1.0 0 - 8 0.5 0.1 0.10 0.10 0.10 *Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) TFP-100G -- Conforms 0.4 g Figure G.2 TFP-100G Package Dimensions (Under development) 24.8 0.4 20 80 81 51 50 Unit: mm 18.8 0.4 100 1 *0.32 0.08 0.30 0.06 30 0.13 M 31 3.10 Max 0.65 *0.17 0.05 0.15 0.04 14 2.4 0.83 0 - 10 0.58 0.20 +0.10 -0.20 2.70 1.2 0.2 0.15 *Dimension including the plating thickness Base material dimension Figure G.3 FP-100A Package Dimensions 895 16.0 0.3 14 75 76 16.0 0.3 Unit: mm 51 50 0.5 100 1 *0.22 0.05 0.20 0.04 25 26 3.05 Max 2.70 0.08 M 1.0 *0.17 0.05 0.15 0.04 1.0 0 - 8 0.5 0.2 0.10 *Dimension including the plating thickness Base material dimension Figure G.4 FP-100B Package Dimensions 896 0.12 +0.13 -0.12 H8S/2345 Series, H8S/2345F-ZTATTM Hardware Manual Publication Date: 1st Edition, September 1997 2nd Edition, December 1998 Published by: Electronic Devices Sales & Marketing Group Semiconductor & Integrated Circuits Group Hitachi, Ltd. Edited by: Technical Documentation Group UL Media Co., Ltd. Copyright (c) Hitachi, Ltd., 1997. All rights reserved. Printed in Japan. |
Price & Availability of HD6432341F
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |