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| DSM2150F5V DSM (Digital Signal Processor System Memory) for Analog Devices DSPs (3.3V Supply) FEATURES SUMMARY s s s s s s Glueless Connection to DSP - Easily add memory, logic, and I/O to the External Port of ADSP-218x, 219x, 2106x, 2116x, 2153x, and TS101 families of DSPs from Analog Devices, Inc. Dual Flash Memories - Two independent Flash memory arrays for storing DSP code and data - Capable of read-while-write concurrent Flash memory operation - Device can be configured as 8-bit or 16-bit - Built-in programmable address decoding logic allows mapping individual sectors of each Flash array to any address boundary - Each Flash sector can be write protected 512 KByte Main Flash memory - Ample storage for boot loading DSP code/ data upon reset and subsequent code swaps - Large capacity for storing tables and constants or for data recording 32 KByte Secondary Flash memory - Smaller sector size ideal for storing calibration and configuration constants. Eliminate external serial EEPROM. - Optionally bypass internal DSP boot ROM during start-up and execute code directly from Secondary Flash. Use for custom start-up code and In-Application Programming (IAP). Up to 40 Multifunction I/O Pins - Increase total DSP system I/O capability - I/O controlled by DSP software or PLD logic General purpose PLD - Use for peripheral glue logic to keypads, control panel, displays, LCDs, and other devices - Over 3,000 gates of PLD with 16 macro cells - Eliminate PLDs and external logic devices - Create state machines, chip selects, simple shifters and counters, clock dividers, delays - Simple PSDsoft ExpressTM development software, free from www.st.com/psm Figure 1. TQFP 80-pin Package TQFP80 (T) s s s s s In-System Programming (ISP) with JTAG - Program entire chip in 15-35 seconds with no involvement of the DSP - Optionally links with DSP JTAG debug port - Eliminate need for sockets and preprogramming of memory and logic devices - ISP allows efficient manufacturing and product testing supporting Just-In-Time inventory - Use low-cost FlashLINKTM cable with any PC. Available from www.st.com/psm. Content Security - Programmable Security Bit blocks access of device programmers and readers Operating Range - VCC: 3.3V 10%, Temp: -40C to +85C Zero-Power Technology - 50A standby current typical Flash Memory Speed, Endurance, Retention - 120ns, 100K cycles, 15 year retention August 2004 1/73 DSM2150F5V TABLE OF CONTENTS FEATURES SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SUMMARY DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 PIN DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ARCHITECTURAL OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 DSP Address/Data/Control Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Main Flash Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Secondary Flash Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Programmable Logic (PLDs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Runtime Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Memory Page Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 I/O Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 JTAG ISP Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Power Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Security and NVM Sector Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 RUNTIME CONTROL REGISTER DEFINITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 DETAILED OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Flash Memories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Reading Flash Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Read Memory Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Read Main Flash Identifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Read Memory Sector Protection Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Reading the Erase/Program Status Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Data Polling Flag (DQ7). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Toggle Flag (DQ6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Error Flag (DQ5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Erase Time-out Flag (DQ3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 PROGRAMMING FLASH MEMORY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 PLDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Turbo Bit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Decode PLD (DPLD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Complex PLD (CPLD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Output Macrocell (OMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Product Term Allocator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Loading and Reading the OMCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 The OMC Mask Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 2/73 DSM2150F5V The Output Enable of the OMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Input Macrocells (IMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 DSP BUS INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Typical Memory Map, DSM2150F5V and ADSP21535 BLACKFIN DSP. . . . . . . . . . . . . . . . . . . 33 Specifying the Memory Map with PSDsoft ExpressTM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ADSP-21535 Blackfin DSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 ADSP-21062 SHARC DSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 ADSP-TS101S TigerSHARC DSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 ADSP-2191 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 ADSP-2188M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 I/O PORTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 General Port Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Port Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MCU I/O Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drive Select Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DSP Data Bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PLD Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PLD Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . JTAG In-System Programming (ISP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Enable Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ports A, B, and C - Functionality and Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Port D - Functionality and Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Port E - Functionality and Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Port F - Functionality and Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Port G - Functionality and Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 . . . . 41 . . . . 42 . . . . 43 . . . . 43 . . . . 43 . . . . 43 . . . . 43 . . . . 43 . . . . 44 . . . . 45 . . . . 46 . . . . 46 . . . . 46 POWER MANAGEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 RESET TIMING AND DEVICE STATUS AT RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Power On Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Warm Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 I/O Pin, Register, and PLD Status at Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 PROGRAMMING IN-CIRCUIT USING JTAG ISP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Standard JTAG Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 JTAG Extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 INITIAL DELIVERY STATE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 AC AND DC PARAMETERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 MAXIMUM RATING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 DC AND AC OPERATING AND MEASUREMENT CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 3/73 DSM2150F5V PACKAGE MECHANICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 PART NUMBERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 APPENDIX A.TQFP80 PIN ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 APPENDIX B.CSIOP REGISTER BIT DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 REVISION HISTORY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 4/73 DSM2150F5V SUMMARY DESCRIPTION The DSM2150F5V is an 8 or 16-bit system memory device for use with the Analog Devices DSPs. DSM means Digital signal processor System Memory. A DSM device brings In-System Programmable (ISP) Flash memory, parameter storage, programmable logic, and additional I/O to DSP systems. The result is a flexible two-chip solution for DSP designs. On-chip integrated memory decode logic makes it easy to map dual banks of Flash memory to the DSPs in a variety of ways for bootloading or bypassing DSP boot ROM, code execution, data recording, code swapping, and parameter storage. JTAG ISP reduces development time, simplifies manufacturing flow, and lowers the cost of field upgrades. The JTAG ISP interface eliminates the need for sockets and pre-programmed memory and logic devices. End products may be manufactured with a blank DSM device soldered down and programmed at the end of the assembly line in 15 to 35 seconds with no involvement of the DSP. Rapidly program test code, then application code as determined by Just-In Time inventory requirements. Additionally, JTAG ISP reduces development time by turning fast iterations of DSP code in the lab. Code updates in the field require no product disassembly. The FlashLINKTM JTAG programming cable costs $59 USD and plugs into any PC parallel port. Programming through conventional device insertion programmers is also available using PSDpro from STMicroelectronics and other 3rd party programmers. See www.st.com/psm. DSM devices add programmable logic (PLD) and up to 32 configurable I/O pins to the DSP system. The state of I/O pins can be driven by DSP software or PLD logic. PLD and I/O configuration are programmable by JTAG ISP. The PLD consists of more than 3000 gates and has 16 macro cell registers. Common uses for the PLD include chip-selects for external devices, state-machines, simple shiftier and counters, keypad and control panel interfaces, clock dividers, handshake delay, muxes, etc., eliminating the need for small external PLDs and logic devices. Configuration of PLD, I/O, and Flash memory mapping is easily entered in a point-and-click environment using the software development tool, PSDsoft ExpressTM, available at no charge from www.st.com/psm. The two-chip DSP/DSM combination is ideal for systems having limitations on size, EMI levels, and power consumption. DSM memory and logic are "zero-power", meaning they automatically go to standby between memory accesses or logic input changes, producing low active and standby current consumption, which is ideal for battery powered products. A programmable security bit in the DSM protects its contents from unauthorized viewing and copying. When set, the security bit will block access of programming devices (JTAG or others) to the DSM Flash memories and PLD configuration. The only way to defeat the security bit is to erase the entire DSM device, after which the device is blank and may be used again. The DSP will always have access to Flash memory contents through the data bus, even with security bit set. Figure 2. System Block Diagram, Two Chip Solution DSM2150F5V DSP SYSTEM MEMORY ANALOG DEVICES DSP ADDR & DECODE LOGIC I/O FLAGS ADDRESS CONTROL ADSP-218x ADSP-219x ADSP-2153x ADSP-2106x ADSP-2116x ADSP-TS101S 8 or 16 DATA SERIAL DEVICE PRIMARY FLASH MEMORY 512 Kbytes SECONDARY FLASH MEMORY 32 Kbytes 16 I/O PORTS WITH I/O, PLD, CHIP SELECTS PLD I/O BUS SERIAL DEVICE SDRAM HOST MCU 16 MACROCELL PLD I/O CONTROL POWER MANAGEMENT CONTENT SECURITY 8 to 16 I/O GENERAL PURPOSE I/O PORTS JTAG ISP TO ALL AREAS JTAG ISP JTAG DEBUG (All But ADSP-218x Family) AI05732 5/73 DSM2150F5V Table 1. DSM2150F5V DSP Memory System Devices Part Number Main Flash Memory 512 KBytes, eight 64-KByte sectors Secondary Flash Mem 32 KBytes, four 8-KByte sectors PLD 16 macro cells I/O Ports Up to 40 VCC and I/O Mem Package Op Temp Speed 120ns 80-pin TQFP -40oC to +85oC DSM2150F5V-12T6 3.3V 10% Table 2. Compatible Analog Devices DSPs DSP Part Number ADSP-2183, 2184L, 2185L, 2186L, 2187L ADSP-2185M, 2186M, 2188M, 2189M ADSP-2184N, 2185N, 2186N, 2187N, 2188N, 2189N ADSP-2191M, 2195M, 2196M Blackfin ADSP-21532S Blackfin ADSP-21535P Sharc ADSP-21060L, 21061L, 21062L, 21065L Sharc ADSP-21160M Sharc ADSP-21160N, 21161N Tiger Sharc ADSP-TS101S Core Operating Voltage 3.3V 2.5V 1.8V 2.5V 3.3V 1.5V 3.3V 2.5V 1.8V 1.0V I/O Voltage 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 6/73 DSM2150F5V Figure 3. TQFP Connections 70 GND 69 VCC 68 PB7 80 PD1 79 PD0 67 PB6 66 PB5 65 PB4 64 PB3 63 PB2 62 PB1 PD2 1 PD3 2 AD0 3 AD1 4 AD2 5 AD3 6 AD4 7 GND 8 VCC 9 AD5 10 AD6 11 AD7 12 AD8 13 AD9 14 AD10 15 AD11 16 AD12 17 AD13 18 AD14 19 AD15 20 61 PB0 78 PE7 77 PE6 76 PE5 75 PE4 74 PE3 73 PE2 72 PE1 71 PE0 60 CNTL1 59 CNTL0 58 PA7 57 PA6 56 PA5 55 PA4 54 PA3 53 PA2 52 PA1 51 PA0 50 GND 49 GND 48 PC7 47 PC6 46 PC5 45 PC4 44 PC3 43 PC2 42 PC1 41 PC0 PG0 21 PG1 22 PG2 23 PG3 24 PG4 25 PG5 26 PG6 27 PG7 28 VCC 29 GND 30 PF0 31 PF1 32 PF2 33 PF3 34 PF4 35 PF5 36 PF6 37 PF7 38 RESET 39 CNTL2 40 AI04943 7/73 DSM2150F5V PIN DESCRIPTION Table 3. Pin Description (Pin Assignments in Appendix A) Pin Name Type AD0-15 CNTL0 CNTL1 In In Also functions as WRL for DSPs which use WRL strobe when writing low byte only in 16-bit word. In Active low READ strobe input from the DSP. Programmable control input. CNTL2 In CNTL2 may be used for BHE (Byte High Enable) when DSM2150F5V is configured for 16-bit operation. BHE = '0' will allow a byte WRITE from data lines D8-D15 ignoring data lines D0-D7. BHE = 1 will allow a byte WRITE from D0-D7 ignoring data lines D8-D15. DSP READ operations are not affected by BHE (always read both bytes). Active low reset input from system. Reset In Resets DSM I/O Ports, Page Register contents, and other DSM configuration registers. Must be logic Low at Power-up. Eight configurable Port A signals with the following functions: - MCU I/O - DSP may write or read pins directly at runtime with csiop registers. - CPLD Output Macrocell (McellA0-7) outputs. - Inputs to the PLDs (via Input Macrocells). Can be used to input address A16 and above. Note: PA0-PA7 may be configured at run-time as standard CMOS or Open Drain Outputs. Eight configurable Port B signals with the following functions: - MCU I/O - DSP may write or read pins directly at runtime with csiop registers. - CPLD Output Macrocell (McellB0-7 or McellC0-7) outputs. - Inputs to the PLDs (via Input Macrocells). Can be used to input address A16 and above. Note: PB0-PB7 may be configured at run-time as standard CMOS or Open Drain Outputs. Eight configurable Port C signals with the following functions: - MCU I/O - DSP may write or read pins directly at runtime with csiop registers. - DPLD chip-select outputs (ECS0-7, does not consume MicroCells). - Inputs to the PLDs (via Input Macrocells). Can be used to input address A16 and above. Note: PC0-PC7 may be configured at run-time as standard CMOS or Faster Slew Rate Output. Four configurable Port D signals with the following functions: - MCU I/O - DSP may write or read pins directly at runtime with csiop registers. - Input to the PLDs (no associated Input Macrocells, routes directly into PLDs). Can be used to input address A16 and above. - PD1 can be configured as CLKIN, a common clock input to PLD. - PD2 can be configured as CSI, active low Chip Select Input to select Flash memory. Flash memory is disabled to conserve more power when CSI is logic high. - PD3 can be used for WRH strobe from DSP to write high byte only for 16-bit configuration. Sixteen address inputs from the DSP. Active low WRITE strobe input from the DSP, typically connected to DSP WR signal. Description PA0-7 I/O PB0-7 I/O PC0-7 I/O PD0-3 I/O 8/73 DSM2150F5V Pin Name Type Description Eight configurable Port E signals with the following functions: - MCU I/O - DSP may write or read pins directly at runtime with csiop registers. - PE0, PE1, PE2, and PE3 can form the JTAG IEEE-1149.1 ISP serial interface as signals TMS, TCK, TDI, and TDO respectively. - PE4 and PE5 can form the enhanced JTAG signals TSTAT and TERR respectively. Reduces ISP programming time up to 30% when used in addition to the standard four JTAG signals: TDI, TDO, TMS, TCK. - PE4 can be configured as the Ready/Busy output to indicate Flash memory programming status during parallel programming. May be polled by DSP or used as DSP interrupt. Note 1: PE0-PE7 may be configured at run-time as either standard CMOS or Open Drain Outputs. Note 2: The JTAG ISP pins may be multiplexed with other I/O functions. Port F connects to eight data bus signals, D0 - D7 from DSP. Port G connects to eight data bus signals, D8 - D15 from DSP if 16-bit data path is used. PG0-7 I/O Otherwise, PG0-PG7 can be used for general purpose MCU I/O pins. Note: PG0-PG7 may be configured at run-time as standard CMOS or Open Drain Outputs. Supply Voltage Ground pins PE0-7 I/O PF0-7 I/O VCC GND 9/73 DSM2150F5V ARCHITECTURAL OVERVIEW Major functional blocks are shown in Figure 4. DSP Address/Data/Control Interface These DSP signals attach directly to the DSM for a glueless connection. An 8-bit or 16-bit data connection is formed and 16 or more DSP address lines can be decoded as well as various DSP memory strobes; i.e. BMS, RD, AWE, IOMS, MSx, etc. The data path width must be specified as 8bits or 16-bits in PSDsoft Express. This configuraFigure 4. Block Diagram tion is a static, meaning the data path width cannot switch between 8-bits and 16-bits during runtime. Port F is used for 8-bit data path, Ports F and G are used for 16-bit data path. There are many different ways the DSM2150F5V can be configured and used depending on system requirements. See Appendices for example connections between the DSM2150F5V and different DSPs. DSP ADDR AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 AD8 AD9 AD10 AD11 AD12 AD13 AD14 AD15 SECURITY LOCK INTERNAL ADDR, DATA, CONTROL BUS LINKED TO DSP I/O PORT TO PLD IN BUS MAIN FLASH 8 BLOCKS, 64 KB 512 KBytes total SECONDARY FLASH CSBOOT0-3 4 BLOCKS, 8 KB 32 KBytes total CSIOP RUNTIME CONTROL GPIO PLD POWER MNGMT PD0 PD1 PD2 PD3 PAGE REG DECODE PLD FS0-7 I/O PORT PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 DSP DATA PF0 PF1 PF2 PF3 PF4 PF5 PF6 PF7 DSP DATA or GP I/O PG0 PG1 PG2 PG3 PG4 PG5 PG6 PG7 A B A B A B A B PLD INPUT BUS I/O PORT PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 ECS0-7 GENERAL PLD AND ARRAY A B AA BB A B A B AAA BBB 16 OUTPUT MICROCELLS A B A B A B A B C C C C C C C C I/O PORT PC0 PC1 PC2 PC3 PC4 PC5 PC6 PC7 24 INPUT MICROCELLS PIN FEEDBACK DSP CNTL CNTL0 CNTL1 CNTL2 RST\ NODE FEEDBACK I/O PORT INTERNAL ADDR, DATA, CONTROL BUS LINKED TO DSP DSM2150F5V DSP System Memory JTAG ISP CONTROLLER PE0 PE1 PE2 PE3 PE4 PE5 PE6 PE7 AI05776 10/73 DSM2150F5V Main Flash Memory The 4M bit (512 KByte) Main Flash memory is divided into eight equally-sized 64 KByte sectors that are individually selectable through the Decode PLD. Each Flash memory sector can be located at any address as defined by the user with PSDsoft Express. DSP code and data are easily placed in flash memory using PSDsoft Express, the software development tool. Secondary Flash Memory The 256Kbit (32 KByte) Secondary Flash memory is divided into eight equally-sized 8 KByte sectors that are individually selectable through the Decode PLD. Each Flash memory sector can be located at any address as defined by the user with PSDsoft Express. DSP code and data can also be placed Secondary Flash memory using the PSDsoft Express development tool. Secondary flash memory is good for storing data because of its smaller sectors. Software EEPROM emulation techniques can be used for small data sets that change frequently on a byte-by-byte basis. Secondary flash may also be used to store custom start-up code for applications that do not "boot" using DMA, but instead start executing code from external memory upon reset (bypass internal DSP boot ROM). Storing code here can keep the entire Main Flash free of initialization code for clean software partitioning. If only one or more 8 KByte sectors are needed for start-up code, the remaining sectors of Secondary Flash may be used for data storage. In-Application-Programming (IAP) may be implemented using Secondary Flash. For example, code to implement IAP over a USB channel may be stored here. The DSP executes code from Secondary Flash array while erasing and writing new code to the Main Flash array as it is received over the USB channel. Any communication channel that the DSP supports can be used for IAP. Secondary Flash may also be used as an extension to Main Flash memory producing a total of 544 KBytes. Miscellaneous: Main and Secondary Flash memories are totally independent, allowing concurrent operation. The DSP can read from one memory while erasing or programming the other. The DSP can erase Flash memories by individual sectors or the entire Flash memory array may be erased at one time. Each sector in either Flash memory array may be individually write protected, blocking any WRITEs from the DSP (good for boot and start-up code protection). The Flash memories automatically go to standby between DSP READ or WRITE accesses to conserve power. Maximum access times include sector decoding time. Maxi- mum erase cycles is 100K and data retention is 15 years minimum. Flash memory, as well as the entire DSM device may be programmed with the JTAG ISP interface with no DSP involvement. Programmable Logic (PLDs) The DSM family contains two PLDS that may optionally run in Turbo or Non-Turbo Mode. PLDs operate faster (less propagation delay) while in Turbo Mode but consume more power than NonTurbo Mode. Non-Turbo Mode allows the PLDs to automatically go to standby when no inputs are change to conserve power. The Turbo Mode setting is controlled at runtime by DSP software. Decode PLD (DPLD). This is programmable logic used to select one of the eight individual Main Flash memory segments, one of four individual Secondary Flash memory segments, or the group of control registers within the DSM device. The DPLD can also drive external chip select signals on Port C pins. DPLD input signals include: DSP address and control signals, Page Register outputs, DSM Port Pins, CPLD logic feedback. Complex PLD (CPLD). This programmable logic is used to create both combinatorial and sequential general purpose logic. The CPLD contains 16 Output Macrocells (OMCs) and 24 Input Macrocells (IMCs). PSD Macrocell registers are unique in that they have direct connection to the DSP data bus allowing them to be loaded and read directly by the DSP at runtime. This direct access is good for making small peripheral devices (shiftier, counters, state machines, etc.) that are accessed directly by the DSP with little overhead. DPLD inputs include DSP address and control signals, Page Register outputs, DSM Port Pins, and CPLD feedback. OMCs: The general structure of the CPLD is similar in nature to a 22V10 PLD device with the familiar sum-of-products (AND-OR) construct. True and compliment versions of 73 input signals are available to a large AND array. AND array outputs feed into a multiple product-term OR gate within each OMC (up to 10 product-terms for each OMC). Logic output of the OR gate can be passed on as combinatorial logic or combined with a flipflop within in each OMC to realize sequential logic. OMCs can be used as a buried nodes with feedback to the AND array or OMC output can be routed to pins on Port A or Port B. IMCs: Inputs from pins on Ports A, B or C are routed to IMCs for conditioning (clocking or latching) as they enter the chip, which is good for sampling and debouncing inputs. Alternatively, IMCs can pass Port input signals directly to PLD inputs without clocking or latching. The DSP may read the IMCs at any time. 11/73 DSM2150F5V Runtime Control Registers A block of 256 bytes is decoded inside the DSM device for control and status registers. 50 registers are used from the block of 256 locations to control the output state of I/O pins, to READ I/O pins, to control power management, to READ/WRITE macrocells, and other functions at runtime. See Table 4., page 13 for description. The base address of these 256 locations is referred to in this data sheet as csiop (Chip Select I/O Port). Individual registers within this block are accessed with an offset from the base address. Some DSPs can access csiop registers using I/O memory with the IOMS strobe (if equipped). csiop registers are bytes. When the DSM is configured for 16-bit operation, csiop registers are read in byte pairs at even addresses only. Care should be taken while writing csiop registers to ensure the proper byte is written within the byte pair. This is not a problem for DSPs that support the BHE (Byte High Enable) signal on the CNTL2 input pin, or WRL, WRH (WRITE low byte, WRITE high byte) on the CNTL0 and PD3 input pins of the DSM2150F5V. Memory Page Register This 8-bit register can be loaded and read by the DSP at runtime as one of the csiop registers. Its outputs feed directly into both PLDs. The page register can be used for special memory mapping requirements and also for general logic. I/O Ports The DSM has 52 individually configurable I/O pins distributed over the seven ports (Ports A, B, C, D, E, F, and G). At least 32 I/O are available when DSM2150F5V is connected with 8-bit data path, and at least 24 I/O are available with 16-bit data path. Each I/O pin can be individually configured for different functions such as standard MCU I/O ports or PLD I/O on a pin by pin basis. (MCU I/O means that for each pin, its output state can be controlled or its input value can be read by the DSP at runtime using the csiop registers like an MCU would do.) The static configuration of all Port pins is defined with the PSDsoft ExpressTM software development tool. The dynamic action of the Ports pins is controlled by DSP runtime software. JTAG ISP Port In-System Programming (ISP) can be performed through the JTAG signals on Port E. This serial interface allows programming of the entire DSM device or subsections (that is, only Flash memory, for example) without the participation of the DSP. A blank DSM device soldered to a circuit board can be completely programmed in 15 to 35 seconds. The basic JTAG signals; TMS, TCK, TDI, and TDO form the IEEE-1149.1 interface. The DSM device does not implement the IEEE-1149.1 Boundary Scan functions. The DSM uses the JTAG interface for ISP only. However, the DSM device can reside in a standard JTAG chain with other JTAG devices and it will remain in BYPASS Mode while other devices perform Boundary Scan. ISP programming time can be reduced as much as 30% by using two more signals on Port E, TSTAT and TERR in addition to TMS, TCK, TDI and TDO. The FlashLINKTM JTAG programming cable is available from STMicroelectronics for $USD59 and PSDsoft Express software is available at no charge from www.st.com/psm. That is all that is needed to program a DSM device using the parallel port on any PC or notebook. See PROGRAMMING IN-CIRCUIT USING JTAG ISP, page 49. Power Management The DSM has bits in csiop registers that are configured at run-time by the DSP to reduce power consumption of the CPLD. The Turbo Bit in the PMMR0 register can be set to logic '1' and the CPLD will go to Non-Turbo Mode, meaning it will latch its outputs and go to sleep until the next transition on its inputs. There is a slight penalty in PLD performance (longer propagation delay), but significant power savings are realized. Additionally, other bits in two csiop registers can be set by the DSP to selectively block signals from entering the CPLD which reduces power consumption. Both Flash memories automatically go to standby current between accesses. No user action required. Security and NVM Sector Protection A programmable security bit in the DSM protects its contents from unauthorized viewing and copying. When set, the security bit will block access of programming devices (JTAG or others) to the DSM Flash memory and PLD configuration. The only way to defeat the security bit is to erase the entire DSM device, after which the device is blank and may be used again. Additionally, the contents of each individual Flash memory sector can be write protected (sector protection) by configuration with PSDsoft ExpressTM. This is typically used to protect DSP boot code from being corrupted by inadvertent WRITEs to Flash memory from the DSP. 12/73 DSM2150F5V RUNTIME CONTROL REGISTER DEFINITION A block of 256 addresses are decoded inside the DSM2150F5V for control and status. 50 locations contain registers that the DSP accesses at runtime. The base address of the registers is called csiop (Chip Select I/O Port). Table 4 lists the registers and their offsets (in hexadecimal) from the csiop base. See Appendix B for bit definitions. Note: Do not write to unused locations, they should remain logic zero. Note: See Table 14., page 48 for register state at reset and at power-on. Table 4. CSIOP Registers and Their Offsets (in Hexadecimal) Register Name Data In Data Out Port Port Port Port Port Port Other A B C D E G 00 04 01 05 10 14 11 15 30 34 41 45 Description MCUI/O Input Mode. Read to obtain current logic level of Port pins. No WRITEs. MCU I/O Output Mode. Write to set logic level on Port pins. Read to check status. MCU I/O Mode. Configures Port pin as input or output. Write to set direction of Port pins. Logic '1' = out, Logic '0' = in. Read to check status. Write to configure Port pins as either standard CMOS or Open Drain on some pins, while selecting high slew rate on other pins. Read to check status. Read to obtain state of IMCs. No WRITEs. Read to obtain the status of the output enable logic on each I/O Port driver. No WRITEs. 20 21 Read to get logic state of output of OMC bank A. Write to load registers of OMC bank A. Read to get logic state of output of OMC bank B. Write to load registers of OMC bank B. Write to set mask for loading OMCs in bank A. Logic '1' in a bit position will block READs/WRITEs of the corresponding OMC. Logic '0' will pass OMC value. Read to check status. Write to set mask for loading OMCs in bank B. Logic '1' in a bit position will block READs/WRITEs of the corresponding OMC. Logic '0' will pass OMC value. Read to check status. Read to determine Main Flash Sector Protection Setting. No WRITEs. Read to determine if DSM devices Security Bit is active. Logic '1' = device secured. Also read to determine Secondary Flash Protection Setting status. No WRITEs. Write to enable JTAG Pins (optional feature). Read to check status. Power Management Register 0. WRITE and READ. Power Management Register 2. WRITE and READ. Memory Page Register. WRITE and READ. Read to get size of Main Flash memory. No WRITEs. Read to get size of 2nd Flash memory. No WRITEs. Direction 06 07 16 17 36 47 Drive Select Input Macrocells Enable Out Output Macrocells A Output Macrocells B Mask Macrocells A 08 09 18 19 38 49 0A 0C 0B 0D 1A 1C 22 Mask Macrocells B Main Flash Sector Protect Security Bit and Secondary Flash Sector Protection JTAG Enable PMMR0 PMMR2 Page Memory_ID0 Memory_ID1 23 C0 C2 C7 B0 B4 E0 F0 F1 13/73 DSM2150F5V DETAILED OPERATION Figure 4., page 10 shows major functional areas of the device: s Flash Memories s PLDs (DPLD, CPLD, Page Register) s DSP Bus Interface (Address, Data, Control) s I/O Ports s Runtime Control Registers s JTAG ISP Interface The following describes these functions in more detail. Flash Memories The Main Flash memory array is divided into eight equal 64 KByte sectors. The Secondary Flash memory array is divided into four equal 8 KByte sectors. Each sector is selected by the DPLD can be separately protected from program and erase cycles. This configuration is specified by using PSDsoft ExpressTM. Memory Sector Select Signals. The DPLD generates the Select signals for all the internal memory blocks (see Figure 7., page 26). Each of the twelve sectors of the Flash memories has a select signal (FS0-FS7, or CSBOOT0-CSBOOT3) which contains up to three product terms. Having three product terms for each select signal allows a given sector to be mapped into multiple areas of system memory if needed. Ready/Busy (PE4). This signal can be used to output the Ready/Busy status of the device. Ready/ Busy is a '0' (Busy) when either Flash memory array is being written, or when either Flash memory array is being erased. The output is a '1' (Ready) when no WRITE or Erase cycle is in progress. This signal may be polled by the DSP or used as a DSP interrupt to indicate when an erase or program cycle is complete. Memory Operation. The Flash memories are accessed through the DSP Address, Data, and Control Bus Interface. DSPs and MCUs cannot write to Flash memory as it would an SRAM device. Flash memory must first be "unlocked" with a special sequence of WRITE operations to invoke an internal algorithm, then a single data byte (or word if DSM2150F5V is configured for 16-bit operation) is written to the Flash memory array, then programming status is checked by a READ operation or by checking the Ready/Busy pin (PE4). This "unlocking" sequence optionally may be bypassed by using the Unlock Bypass command to reduce programming time. Table 5., page 15 lists all of the special instruction sequences to program (write) data to the Flash memory arrays, erase the arrays, and check for different types of status from the arrays when the DSM2150F5V is configured to operate as an 8-bit device. Table 6 lists instruction sequences when the DSM2150F5V is configured for 16-bit operation. These instruction sequences are different combinations of individual WRITE and READ operations. IMPORTANT: The DSP cannot read and execute code from the same Flash memory array for which it is directing an instruction sequence. Or more simply stated, the DSP may not read code from the same Flash array that is writing or erasing. Instead, the DSP must execute code from an alternate memory (like its own internal SRAM or a different Flash array) while sending instructions to a given Flash array. Since the two Flash memory arrays inside the DSM device are completely independent, the DSP may read code from one array while sending instructions to the other. After a Flash memory array is programmed (written) it will go to "Read Array" Mode, then the DSP can read from Flash memory just as if would from any ROM or SRAM device. 14/73 DSM2150F5V Table 5. Instruction Sequences for 8-bit Operation (Notes 1,2,3,4) Instruction Sequence Read Memory Contents5 Read Flash Identifier (Main Flash only)6,7 Read Memory Sector Protection Status6,7,8 Program a Flash Byte Cycle 1 Read byte from any valid Flash memory addr Write AAh to XX555h Write AAh to XX555h Write AAh to XX555h Write 55h to XXAAAh Write 55h to XXAAAh Write 55h to XXAAAh Write 55h to XXAAAh Write 55h to XXAAAh Write 90h to XX555h Write 90h to XX555h Write A0h to XX555h Write 80h to XX555h Write 80h to XX555h Read identifier at addr XXX01h Read value at addr XXX02h Write (program) data to addr Write AAh to XX555h Write AAh to XX555h Write 55h to XXAAAh Write 55h to XXAAAh Write 10h to XX555h Write 30h to another Sector Write 30h to another Sector Cycle 2 Cycle 3 Cycle 4 Cycle 5 Cycle 6 Cycle 7 Write AAh to Flash Bulk Erase9 XX555h Flash Sector Erase10 Write AAh to XX555h Write B0h to addr in FS0-7 or CSBOOT0-3 Write 30h to addr in FS0-7 or CSBOOT0-3 Write F0h to addr in FS0-7 or CSBOOT0-3 Write AAh to XX555h Write A0h to addr in FS0-7 or CSBOOT0-3 Write 90h to addr in FS0-7 or CSBOOT0-3 Suspend Sector Erase11 Resume Sector Erase12 Reset Flash 6 Unlock Bypass Write 55h to XXAAAh Write (program) data to addr Write 00h to addr in FS0-7 or CSBOOT03 Write 20h to XX555h Unlock Bypass Program13 Unlock Bypass Reset14 Note: 1. All values are in hexadecimal, X = "Don't care" 2. A desired internal Flash memory sector select signal (FS0 - FS7 or CSBOOT0 - CSBOOT3) must be active for each WRITE or READ cycle. Only one of these sector select signals will be active at any given time depending on the address presented by the DSP and the memory mapping defined in PSDsoft Express. FS0 - FS7 and CSBOOT0-CSBOOT3 are active high logic internally. 3. Only address Bits A11-A0 are used during Flash memory instruction sequence decoding bus cycles. The individual sector select signal (FS0 - FS7 or CSBOOT0-CSBOOT3) which is active during the instruction sequences determines the complete address. 4. For WRITE operations, addresses are latched on the falling edge of Write Strobe (WR, CNTL0), Data is latched on the rising edge of Write Strobe (WR, CNTL0) 5. No Unlock or Instruction cycles are required when the device is in the Read Array Mode. Operation is like reading a ROM device. 15/73 DSM2150F5V 6. The Reset Flash instruction is required to return to the normal Read Array Mode if the Error Flag Bit (DQ5) goes High, or after reading the Flash Identifier or after reading the Sector Protection Status. 7. The DSP cannot invoke this instruction sequence while executing code from the same Flash memory as that for which the instruction sequence is intended. The DSP must fetch, for example, the code from the DSP SRAM when reading the Flash memory Identifier or Sector Protection Status. 8. The data is 00h for an unprotected sector, and 01h for a protected sector. In the fourth cycle, the Sector Select is active, and (A1,A0) = (1,0) 9. Directing this command to any individual active Flash memory segment (FS0 - FS7) will invoke the bulk erase of all eight Flash memory sectors. Likewise, directing command to any Secondary Flash sector (CSBOOT0-3) will invoke erase of all four sectors. 10. DSP writes command sequence to initial segment to be erased, then writes the byte 30h to additional sectors to be erased. 30h must be addressed to one of the other Flash memory segments (FS0-7 or CSBOOT0-3) for each additional segment (write 30h to any address within a desired sector). No more time than tTIMEOUT can elapse between subsequent additional sector erase commands. 11. The system may perform READ and Program cycles in non-erasing sectors, read the Flash ID or read the Sector Protect Status, when in the Suspend Sector Erase Mode. The Suspend Sector Erase instruction sequence is valid only during a Sector Erase cycle. 12. The Resume Sector Erase instruction sequence is valid only during the Suspend Sector Erase Mode. 13. The Unlock Bypass instructions required prior to the Unlock Bypass Program Instruction. 14. The Unlock Bypass Reset Flash instruction is required to return to reading memory data when the device is in Unlock Bypass Mode. 16/73 DSM2150F5V Table 6. Instruction Sequences for 16-bit Operation (Notes 1,2,3,4,15) Instruction Sequence Read Memory Contents5 Read Flash Identifier (Main Flash only)6,7 Read Sector Protect Status6,7,8 Program a Flash word Cycle 1 Read word from even addr Write XXAAh to XXAAAh Write XX55h to XX554h Write XX90h to XXAAAh Read identifier at addr XXX02h Read value at addr XXX04h Write word to even address Write XXAAh to XXAAAh Write XXAAh to XXAAAh Write XX55h to XX554h Write XX55h to XX554h Write XX10h to XXAAAh Write XX30h to new Sector Write XX30h to new Sector Cycle 2 Cycle 3 Cycle 4 Cycle 5 Cycle 6 Cycle 7 Write XXAAh to XXAAAh Write XXAAh to XXAAAh Write XXAAh to XXAAAh Write XXAAh to XXAAAh Write XXB0h to even addr in FS0-7 or CSBOOT0-3 Write XX30h to even addr in FS0-7 or CSBOOT0-3 Write XXF0h to even addr in FS0-7 or CSBOOT0-3 Write XXAAh to XXAAAh Write XXA0h to even addr in FS0-7 or CSBOOT0-3 Write XX90h to even addr in FS0-7 or CSBOOT0-3 Write XX55h to XX554h Write XX55h to XX554h Write XX55h to XX554h Write XX55h to XX554h Write XX90h to XXAAAh Write XXA0h to XXAAAh Write XX80h to XXAAAh Write XX80h to XXAAAh Flash Bulk Erase9 Flash Sector Erase10 Suspend Sector Erase11 Resume Sector Erase12 Reset Flash 6 Unlock Bypass Write XX55h to XX554h Write word to even addr Write XX00h to even addr in FS0-7 or CSBOOT0-3 Write XX20h to XXAAAh Unlock Bypass Program13 Unlock Bypass Reset14 Note: 1. All values are in hexadecimal, X = "Don't care" 2. A desired internal Flash memory sector select signal (FS0 - FS7 or CSBOOT0 - CSBOOT3) must be active for each WRITE or READ cycle. Only one of these sector select signals will be active at any given time depending on the address presented by the DSP and the memory mapping defined in PSDsoft Express. FS0 - FS7 and CSBOOT0-CSBOOT3 are active high logic internally. 3. Only address Bits A11-A0 are used during Flash memory instruction sequence decoding bus cycles. The individual sector select signal (FS0 - FS7 or CSBOOT0-CSBOOT3) which is active during the instruction sequences determines the complete address. 4. For WRITE operations, addresses are latched on the falling edge of Write Strobe (WR, CNTL0), Data is latched on the rising edge of Write Strobe (WR, CNTL0) 5. No Unlock or Instruction cycles are required when the device is in the Read Array Mode. Operation is like reading a ROM device. 6. The Reset Flash instruction is required to return to the normal Read Array Mode if the Error Flag Bit (DQ5) goes High, or after reading the Flash Identifier or after reading the Sector Protection Status. 17/73 DSM2150F5V 7. The DSP cannot invoke this instruction sequence while executing code from the same Flash memory as that for which the instruction sequence is intended. The DSP must fetch, for example, the code from the DSP SRAM when reading the Flash memory Identifier or Sector Protection Status. 8. The data is XX00h for an unprotected sector, and XX01h for a protected sector. In the fourth cycle, the Sector Select is active, and (A1,A0) = (1,0) 9. Directing this command to any individual active Flash memory segment (FS0 - FS7) will invoke the bulk erase of all eight Flash memory sectors. Likewise, directing command to any Secondary Flash sector (CSBOOT0-3) will invoke erase of all four sectors. 10. DSP writes command sequence to initial segment to be erased, then writes the word XX30h to additional sectors to be erased. XX30h must be addressed to one of the other Flash memory segments (FS0-7 or CSBOOT0-3) for each additional segment (write XX30h to any address within a desired sector). No more time than tTIMEOUT can elapse between subsequent additional sector erase commands. 11. The system may perform READ and Program cycles in non-erasing sectors, read the Flash ID or read the Sector Protect Status, when in the Suspend Sector Erase Mode. The Suspend Sector Erase instruction sequence is valid only during a Sector Erase cycle. 12. The Resume Sector Erase instruction sequence is valid only during the Suspend Sector Erase Mode. 13. The Unlock Bypass instructions required prior to the Unlock Bypass Program Instruction. 14. The Unlock Bypass Reset Flash instruction is required to return to reading memory data when the device is in Unlock Bypass Mode. 15. All bus cycles in an instruction sequence are WRITEs or READs to an even address (XXAAAh or XX554h), and only the low byte, D0-D7, is significant (upper byte on D8-D15 is ignored). A Flash memory Program bus cycle writes a word to an even address. 18/73 DSM2150F5V INSTRUCTIONS An instruction sequence consists of a sequence of specific WRITE or READ operations. IMPORTANT: When the DSM2150F5V is configured for 8-bit operations, all instruction sequences consist of byte WRITE and READ operations on an even or odd address boundary. Flash memory locations are programmed in bytes to even or odd addresses. When the DSM2150F5V is configured for 16-bit operation, all instruction sequences consist of word WRITE and READ operations on even address boundaries only. The lower byte on D0-7 is significant and the upper byte on D8-15 is ignored during instructions and status. Flash memory locations are programmed in 16-bit words to even addresses only. Each byte/word written to the device is received and sequentially decoded and not executed as a standard WRITE operation to the memory array until the entire command string has been received. The instruction sequence is executed when the correct number of bytes/words are properly received and the time between two consecutive bytes/words is shorter than the time-out period, tTIMEOUT. Some instruction sequences are structured to include READ operations after the initial WRITE operations. The instruction sequence must be followed exactly. Any invalid combination of instruction bytes/ words or time-out between two consecutive bytes/ words while addressing Flash memory resets the Table 7. Status Bit Definition Functional Block FS0-FS7, or CSBOOT0-CSBOOT3 Active (the desired segment is selected) DQ7 Data Polling DQ6 Toggle Flag DQ5 Error Flag DQ4 DQ3 Erase Timeout DQ2 DQ1 DQ0 device logic into Read Array Mode (Flash memory is read like a ROM device). The device supports the instruction sequences summarized in Table 5., page 15 and Table 6., page 17: Flash memory: s Read memory contents s Read Main Flash Identifier value s Read Sector Protection Status s Program a Byte/Word s Erase memory by chip or sector s Suspend or resume sector erase s Reset to Read Array Mode s Unlock Bypass Instructions For efficient decoding of the instruction sequences, the first two bytes/words of an instruction sequence are the coded cycles and are followed by an instruction byte/word or confirmation byte/ word. The coded cycles consist of writing the data AAh to address XX555h (or XXAAh to address XXAAAh for 16-bit mode) during the first cycle and data 55h to address XXAAAh (or XX55h to address XX554 for 16-bit mode) during the second cycle. Address input signals A12 and above are "Don't care" during the instruction sequence WRITE cycles. However, the appropriate internal Sector Select (FS0-FS7 or CSBOOT0-CSBOOT3, see Table 7) must be selected internally (active low is logic '1'). Flash Memory X X X X Note: 1. X = Not guaranteed value, can be read either '1' or '0.' 2. DQ7-DQ0 represent the Data Bus bits, D7-D0. 3. When the DSM2150F5V is configured for 16-bit operation, DQ8-DQ15 are not significant and can be ignored. 19/73 DSM2150F5V Reading Flash Memory Under typical conditions, the DSP may read the Flash memory using READ operations just as it would a ROM or RAM device. Alternately, the DSP may use READ operations to obtain status information about a Program or Erase cycle that is currently in progress. Lastly, the DSP may use instruction sequences to read special data from these memory blocks. The following sections describe these READ instruction sequences. Read Memory Contents Flash memory is placed in the Read Array Mode after Power-up, chip reset, or a Reset Flash memory instruction sequence (see Table 5., page 15 or Table 6., page 17). The DSP can read the memory contents of the Flash memory by using READ operations any time the READ operation is not part of an instruction sequence. Bytes are read from even or odd addresses when the DSM2150F5V is configured for 8-bit operation. Only 16-bit words are read from even addresses when the DSM2150F5V is configured for 16-bit operations. Read Main Flash Identifier The Main Flash memory identifier is read with an instruction sequence composed of 4 operations: 3 specific WRITE operations and a READ operation (see Table 5., page 15 or Table 6., page 17). During the READ operation the appropriate internal Sector Select (FS0-FS7) must be active. The identifier is E8h (or XXE8h for 16-bit mode). Not applicable to Secondary Flash. Read Memory Sector Protection Status The Flash memory Sector Protection Status is read with an instruction sequence composed of 4 operations: 3 specific WRITE operations and a READ operation (see Table 5., page 15 or Table 6., page 17). The READ operation will produce 01h (XX01h for 16-bit mode) if the Flash sector is protected or 00h (XX00h or 16-bit mode) if the sector is not protected. Internal Sector Select (FS0FS7 or CSBOOT0-CSBOOT3) designates the Flash memory sector whose protection has to be verified. Alternatively, the sector protection status can also be read by the DSP accessing the Flash memory Protection registers in csiop space. See the section entitled "Flash Memory Sector Protect" for register definitions. Reading the Erase/Program Status Bits The device provides several status bits to be used by the DSP to confirm the completion of an Erase or Program cycle of Flash memory. These status bits minimize the time that the DSP spends performing these tasks and are defined in Table 7., page 19. The status bits can be read as many times as needed. DQ8 - DQ15 are insignificant and can be ignored when the DSM2150F5V is configured to operate in 16-bit mode, however, the READ operation must occur on an even address boundary. For Flash memory, the DSP can perform a READ operation to obtain these status bits while an Erase or Program instruction sequence is being executed by the embedded algorithm. See PROGRAMMING FLASH MEMORY, page 22, for details. Data Polling Flag (DQ7) When erasing or programming in Flash memory, the Data Polling Flag Bit (DQ7) outputs the complement of the bit being entered for programming/ writing on the Data Polling Flag Bit (DQ7). Once the Program instruction sequence or the WRITE operation is completed, the true logic value is read on the Data Polling Flag Bit (DQ7). - Data Polling is effective after the fourth WRITE pulse (for a Program instruction sequence) or after the sixth WRITE pulse (for an Erase instruction sequence). It must be performed at the address being programmed or at an address within the Flash memory sector being erased. - During an Erase cycle, the Data Polling Flag Bit (DQ7) outputs a '0.' After completion of the cycle, the Data Polling Flag Bit (DQ7) outputs the last bit programmed (it is a '1' after erasing). - If the byte/word to be programmed is in a protected Flash memory sector, the instruction sequence is ignored. - If all the Flash memory sectors to be erased are protected, the Data Polling Flag Bit (DQ7) is reset to '0' for tTIMOUT, and then returns to the previous addressed byte. No erasure is performed. 20/73 DSM2150F5V Toggle Flag (DQ6) The device offers an alternative way for determining when the Flash memory Program cycle is completed. During the internal WRITE operation and when the Sector Select FS0-FS7 (or CSBOOT0CSBOOT3) is true, the Toggle Flag Bit (DQ6) toggles from '0' to '1' and '1' to '0' on subsequent attempts to read any byte of the memory. When the DSM2150F5V is configured to operate in 16-bit mode, status READs must occur at even addresses, DQ8 - DQ15 are insignificant and can be ignored. When the internal cycle is complete, the toggling stops and the data READ on the Data Bus is the addressed memory byte/word. The device is now accessible for a new READ or WRITE operation. The cycle is finished when two successive READs yield the same output data. - The Toggle Flag Bit (DQ6) is effective after the fourth WRITE operation (for a Program instruction sequence) or after the sixth WRITE operation (for an Erase instruction sequence). - If the byte/word to be programmed belongs to a protected Flash memory sector, the instruction sequence is ignored. - If all the Flash memory sectors selected for erasure are protected, the Toggle Flag Bit (DQ6) toggles to '0' for tTIMOUT and then returns to the previous addressed byte. Error Flag (DQ5) During a normal Program or Erase cycle, the Error Flag Bit (DQ5) is to '0.' This bit is set to '1' when there is a failure during Flash memory byte/word Program operation, Sector Erase, or Bulk Erase operation. In the case of Flash memory programming, the Error Flag Bit (DQ5) indicates the attempt to program a Flash memory bit from the programmed state, logic '0,' to the erased state, logic '1', which is not valid. The Error Flag Bit (DQ5) may also indicate a Time-out condition while attempting to program a byte/word. In case of an error in a Flash memory Sector Erase or byte/word Program cycle, the Flash memory sector in which the error occurred or to which the programmed byte/word belongs must no longer be used. Other Flash memory sectors may still be used. The Error Flag Bit (DQ5) is reset after a Reset Flash instruction sequence. Erase Time-out Flag (DQ3) The Erase Time-out Flag Bit (DQ3) reflects the time-out period allowed between two consecutive Sector Erase instruction sequence bytes/words. The Erase Time-out Flag Bit (DQ3) is reset to '0' after a Sector Erase cycle for a time period tTIMOUT unless an additional Sector Erase instruction sequence is decoded. After this time period, or when the additional Sector Erase instruction sequence is decoded, the Erase Time-out Flag Bit (DQ3) is set to '1.' 21/73 DSM2150F5V PROGRAMMING FLASH MEMORY When the DSM2150F5V is configured for 8-bit operation, Flash memory locations are programmed in 8-bit bytes to even or odd addresses. When the DSM2150F5V is configured for 16-bit operation, Flash memory locations are programmed in 16-bit words to even addresses only. However, some DSPs support the BHE (byte high enable) signal on the DSM2150F5V CNTL2 input or the WRL, WRH (Write Low Byte, Write High Byte) signals on the CNTL0 and PD3 inputs. In these cases, a DSP WRITE operation can be directed to an individual byte (upper or lower) of a byte-pair. These signals do not effect READ operations, only WRITEs. READs are always by 16bits from an even address. BHE signal on CNT2 input. See Table 8. Evenbyte refers to locations with address A0 equal to '0,' and odd byte as locations with A0 equal to '1.' WRL and WRH signals on CNT0 and PD3 inputs. See Table 9. Even-byte refers to locations with address A0 equal to '0,' and odd byte as locations with A0 equal to '1.' When a byte/word of Flash memory is programmed, individual bits are programmed to logic '0.' You cannot program a bit in Flash memory to a logic '1' once it has been programmed to a logic '0.' A bit must be erased to logic '1,' and programmed to logic '0.' That means Flash memory must be erased prior to being programmed. The DSP may erase the entire Flash memory array all at once or individual sector-by-sector, but not byteby-byte (or word-by-word for 16-bit mode). However, the DSP may program Flash memory byte-bybyte (or word-by-word for 16-bit mode). The Flash memory requires the DSP to send an instruction sequence to program a byte or to erase sectors (see Table 5., page 15 or Table 6., page 17). Once the DSP issues a Flash memory Program or Erase instruction sequence, it must check for the status bits for completion. The embedded algorithms that are invoked inside the device provide several ways give status to the DSP. Status may be checked using any of three methods: Data Polling, Data Toggle, or Ready/Busy (pin PE4). Table 8. 16-Bit Data Bus with BHE BHE 0 0 1 A0 0 1 0 D15-D8 Odd Byte Odd Byte -- D7-D0 Even Byte -- Even Byte Table 9. 16-Bit Data Bus with WRH and WRL WRH 0 0 1 WRL 0 1 0 D15-D8 Odd Byte Odd Byte -- D7-D0 Even Byte -- Even Byte 22/73 DSM2150F5V Data Polling. Polling on the Data Polling Flag Bit (DQ7) is a method of checking whether a Program or Erase cycle is in progress or has completed. Figure 5 shows the Data Polling algorithm. When the DSP issues a Program instruction sequence, the embedded algorithm within the device begins. The DSP then reads the location of the byte/word to be programmed in Flash memory to check status. For 16-bit operation, the status location READ must be at an even address and D8D15 can be ignored. The Data Polling Flag Bit (DQ7) of this location becomes the compliment of Bit 7 of the original data byte/word to be programmed. The DSP continues to poll this location, comparing the Data Polling Flag Bit (DQ7) and monitoring the Error Flag Bit (DQ5). When the Data Polling Flag Bit (DQ7) matches Bit 7 of the original data, and the Error Flag Bit (DQ5) remains '0,' then the embedded algorithm is complete. If the Error Flag Bit (DQ5) is '1,' the DSP should test the Data Polling Flag Bit (DQ7) again since the Data Polling Flag Bit (DQ7) may have changed simultaneously with the Error Flag Bit (DQ5) (see Figure 5). The Error Flag Bit (DQ5) is set if either an internal time-out occurred while the embedded algorithm attempted to program the byte/word or if the DSP attempted to program a '1' to a bit that was not erased (not erased is logic '0'). It is suggested (as with all Flash memories) to read the location again after the embedded programming algorithm has completed, to compare the byte/word hat was written to the Flash memory with the byte/word that was intended to be written. When using the Data Polling method during an Erase cycle, Figure 5 still applies. However, the Data Polling Flag Bit (DQ7) is '0' until the Erase cycle is complete. A '1' on the Error Flag Bit (DQ5) indicates a time-out condition on the Erase cycle, a '0' indicates no error. The DSP can read any location (must be even address for 16-bit mode) within the sector being erased to get the Data Polling Flag Bit (DQ7) and the Error Flag Bit (DQ5). PSDsoft Express generates ANSI C code functions which implement these Data Polling algorithms. Figure 5. Data Polling Flowchart START READ DQ5 & DQ7 at VALID ADDRESS DQ7 = DATA NO NO YES DQ5 =1 YES READ DQ7 DQ7 = DATA NO FAIL YES PASS AI01369B 23/73 DSM2150F5V PLDs The PLDs bring programmable logic to the device. After specifying the logic for the PLDs using PSDsoft Express, the logic is programmed into the device and available upon Power-up. The PLDs have selectable levels of performance and power consumption. The device contains two PLDs: the Decode PLD (DPLD), and the Complex PLD (CPLD), as shown in Figure 6., page 25. The DPLD performs address decoding, and generates select signals for internal and external components, such as memory, registers, and I/O ports. The DPLD can generate eight External Chip Select (ECS0-ECS7) signals on Port C. The CPLD can be used for logic functions, such as loadable counters and shift registers, state machines, and encoding and decoding logic. These logic functions can be constructed using the 16 Output Macrocells (OMC), 24 Input Macrocells (IMC), and the AND Array. The AND Array is used to form product terms. These product terms are configured from the logic definition entered in PSDsoft Express. A PLD Input Bus consisting of 73 signals is connected to the PLDs. Input signals are shown in Table 10. Turbo Bit The PLDs in the device can minimize power consumption by switching to standby when inputs remain unchanged for an extended time tTURBO. Resetting the Turbo Bit to '0' (Bit 3 of the PMMR0 register) automatically places the PLDs into standby if no inputs are changing. Turning the Turbo Mode off increases propagation delays while reducing power consumption. Additionally, seven bits are available in the PMMR registers in csiop to block DSP control signals from entering the PLDs. This reduces power consumption and can be used only when these DSP control signals are not used in PLD logic equations. Each of the two PLDs has unique characteristics suited for its applications. They are described in the following sections. Table 10. DPLD and CPLD Inputs Input Source DSP Address Bus1 DSP Control Signals2 Reset Input Name A15-A0 CNTL2-CNTL0 RST Number of Signals 16 3 1 8 8 8 4 8 8 8 1 PortA Input Macrocells PA7-PA0 PortB Input Macrocells PortC Input Macrocells Port D Inputs Page Register Macrocell A Feedback Macrocell B Feedback Flash memory Program Status Bit PB7-PB0 PC7-PC0 PD3-PD0 PG7-PG0 MCELLA FB7-0 MCELLB FB7-0 Ready/Busy Note: 1. DSP address lines above A15 may enter the DSM device on any pin on ports A, B, C or D. See Appendices for recommended connections. 2. Additional DSP control signals may enter the DMS device on any pin on Ports A, B, C, or D. See Appendices for recommended connections. 24/73 DSM2150F5V Figure 6. PLD Diagram 8 PAGE REGISTER Data Bus 73 DECODE PLD (DPLD) 8 4 Main Flash Memory Selects Secondary Flash Memory Selects 1 8 1 CSIOP Select External Chip Selects to Port C JTAG Select PLD INPUT BUS 16 Output Macrocell Feedback Direct Macrocell Access from MCU Data Bus CPLD PT ALLOC. 16 Output Macrocell MCELLA to PORT A 8 I/O PORTS 73 24 Input Macrocell (PORT A, B,C) MCELLB to PORT B 8 Direct Macrocell Input to MCU Data Bus 24 Input Macrocell and Input Ports 4 PORT D Inputs AI05769 25/73 DSM2150F5V Decode PLD (DPLD) The DPLD, shown in Figure 7, is used for decoding the address for internal and external components. The DPLD can be used to generate the following decode signals: s 8 Main Flash memory Sector Select (FS0FS7) signals with three product terms each s 4 Secondary Flash memory Sector Select (CSBOOT0-CSBOOT3) signals with three product terms each Figure 7. DPLD Logic Array 3 3 3 3 (INPUTS) I/O PORTS (PORT A, B,C) MCELLA.FB [ 7:0] (Feedback) MCELLB.FB [ 7:0] (Feedback ) PG0-PG7 A[15:0] PD[3:0] (24) 3 (8) 3 (8) 3 (8) 3 (16) 3 (4) 3 CNTRL[2:0] (Read/Write Control Signals)(3) 3 RESET RD_BSY (1) (1) 1 1 1 1 1 CSIOP JTAGSEL ECS0 ECS1 ECS2 I/O Decoder Select JTAG ISP 3 CSBOOT0 CSBOOT1 CSBOOT2 CSBOOT3 FS0 FS1 FS2 FS3 FS4 FS5 FS6 FS7 8 Flash Main Memory Sector Selects 4 Secondary Flash Memory Sector Selects s s s 1 internal csiop select for DSM device control and status registers (csiop is the base address of the block of 256 byte locations) 1 JTAG Select signal (enables JTAG operations on Port E when multiplexing JTAG signals with general I/O signals) 8 external chip select output signals for Port C pins, each with one product term. 1 1 1 1 1 ECS3 ECS4 ECS5 ECS6 ECS7 External Chip Selects to PORT C AI05775 26/73 DSM2150F5V Complex PLD (CPLD) The CPLD can be used to implement system logic functions, such as loadable counters and shift registers, system mailboxes, handshaking protocols, state machines, and random logic. See Application Note AN1171 for details on how to specify logic using PSDsoft Express. The CPLD has the following blocks: s 24 Input Macrocells (IMC) s 16 Output Macrocells (OMC) s Product Term Allocator s AND Array capable of generating up to 190 product terms s Two I/O Ports. Figure 8. Macrocell and I/O Port PLD INPUT BUS Product Terms from other MacrocellS DSP ADDRESS / DATA BUS Each of the blocks are described in the sections that follow. The IMCs and OMCs are connected to the device internal data bus and can be directly accessed by the DSP. This enables the DSP software to load data into the OMC or read data from both the IMCs and OMCs. This feature allows efficient implementation of system logic and eliminates the need to connect the data bus to the AND Array as required in most standard PLD macro cell architectures. CPLD Macrocells PT PRESET PRODUCT TERM ALLOCATOR MCU DATA IN MCU LOAD DATA LOAD CONTROL I/O PORTS DATA WR I/O Pin D Q MUX AND ARRAY UP TO 10 PRODUCT TERMS Macrocell Out to MCU CPLD OUTPUT PR DI LD PT CLOCK D/T MUX Q COMB. /REG SELECT PDR INPUT PLD INPUT BUS GLOBAL CLOCK CLOCK SELECT PT CLEAR D/T/JK FF SELECT CK CL MUX POLARITY SELECT D WR Q DIR REG. PT Output Enable (OE) Macrocell Feedback I/O Port Input Input Macrocells MUX QD QD PT INPUT LATCH GATE/CLOCK G AI05770 27/73 DSM2150F5V Output Macrocell (OMC) Eight of the OMCs, McellA0-McellA7, are connected to Port A pins. The other eight Macrocells, McellB0-McellB7, are connected to Ports B pins. OMCs may be used for internal feedback (buried registers), or their outputs may be routed to external Port pins. The OMC architecture is shown in Figure 9., page 30. As shown in the figure, there are native product terms available from the AND Array, and borrowed product terms available (if unused) from other OMC. The polarity of the product term is controlled by the XOR gate. The OMC can implement either sequential logic, using the flip-flop element, or combinatorial logic. The multiplexer selects between the sequential or combinatorial logic outputs. The multiplexer output can drive a port pin and has a feedback path to the AND Array inputs. The flip-flop in the OMC block can be configured as a D, T, JK, or SR type in PSDsoft ExpressTM. The flip-flop's clock, preset, and clear inputs may be driven from a product term of the AND Array. Alternatively, CLKIN (PD1) can be used for the clock input to the flip-flop. The flip-flop is clocked on the rising edge of CLKIN (PD1). The preset and clear are active High inputs. Each clear input can use up to two product terms. Table 11. Output Macrocell Port and Data Bit Assignments Output Macrocell McellA0 McellA1 McellA2 McellA3 McellA4 McellA5 McellA6 McellA7 McellB0 McellB1 McellB2 McellB3 McellB4 McellB5 McellB6 McellB7 Port Assignment Port A0 Port A1 Port A2 Port A3 Port A4 Port A5 Port A6 Port A7 Port B0 Port B1 Port B2 Port B3 Port B4 Port B5 Port B6 Port B7 Native Product Terms 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 Maximum Borrowed Product Terms 6 6 6 6 6 6 6 6 5 5 5 5 6 6 6 6 Data Bit for Loading or Reading in 16-bit Mode D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 Data Bit for Loading or Reading in 8-bit Mode D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7 28/73 DSM2150F5V Product Term Allocator The CPLD has a Product Term Allocator. PSDsoft ExpressTM uses the Product Term Allocator to borrow and place product terms from one Macrocell to another. This happens automatically in PSDsoft ExpressTM, but understanding how allocation works will help you if your logic design does not "fit", in which case you may try selecting a different pin or different OMC where the allocation resources may differ and the design will then fit. The following list summarizes how product terms are allocated: s McellA0-McellA7 all have three native product terms and may borrow up to six more s McellB0-McellB3 all have four native product terms and may borrow up to five more s McellB4-McellB7 all have four native product terms and may borrow up to six more. Each Macrocell may only borrow product terms from certain other Macrocells. Product terms already in use by one Macrocell are not available for another Macrocell. Product term allocation does not add any propagation delay to the logic. If an equation requires more product terms than are available to it through product term allocation, then "external" product terms are required, which consumes other OMC. This is called product term expansion and also happens automatically in PSDsoft ExpressTM as needed. Product tern expansion causes additional propagation delay because an OMC is consumed by the expansion and it's output is rerouted (or fed back) into the AND array. You can examine the fitter report generated by PSDsoft Express to see resulting product term allocation and product term expansion. Loading and Reading the OMCs Each of the two OMC blocks (8 OMCs each) occupies a memory location in the DSP address space, as defined in the csiop block MCELLA0-7 and MCELLB0-7 (see Table 4., page 13). The flipflops in each of the 16 OMCs can be loaded from the data bus by a DSP. Loading the OMCs with data from the DSP takes priority over internal functions. As such, the preset, clear, and clock inputs to the flip-flop can be overridden by the DSP. The ability to load the flip-flops and read them back is useful in such applications as loadable counters and shift registers, mailboxes, and handshaking protocols. Data is loaded into the OMC on the trailing edge of Write Strobe coming from CNTL0. 29/73 DSM2150F5V Figure 9. CPLD Output Macrocell MASK REG. Output Macrocell CS RD INTERNAL DATA BUS PT Allocator WR Direction Register ENABLE (.OE) PRESET(.PR) COMB/REG SELECT AND ARRAY PT PT DIN PR PLD INPUT BUS MUX PT LD POLARITY SELECT CLEAR (.RE) PT CLK CLKIN MUX IN CLR Programmable FF (D / T/JK /SR) Port Driver Q I/O Pin Feedback (.FB) Port Input Input Macrocell AI05771 30/73 DSM2150F5V The OMC Mask Register There is one Mask Register for each of the two groups of eight OMCs. The Mask Registers can be used to block the loading of data to individual OMCs. The default value for the Mask Registers is 00h, which allows loading of all the OMCs. When a given bit in a Mask Register is set to a '1,' the DSP is blocked from writing to the associated OMC. For example, suppose McellA0-3 are being used for a state machine. You would not want a DSP WRITE to McellA to overwrite the state machine registers. Therefore, you would want to load the Mask Register for McellA group with the value 0Fh. The Output Enable of the OMC The OMC block can be connected to an I/O port pin as a PLD output. The output enable of each port pin driver is controlled by a single product term from the AND Array, ORed with the Direction Register output. The pin is enabled upon Powerup if no output enable equation is defined and if the pin is declared as a PLD output in PSDsoft Express. If the OMC output is specified as an internal node and not as a port pin output in the PSDsoft Express, then the port pin can be used for other I/O functions. The internal node feedback can be routed as an input to the AND Array. Input Macrocells (IMC) The CPLD has 24 IMCs, one for each pin on Ports A, B and C. The architecture of the IMCs is shown in Figure 10., page 32. The IMCs are individually configurable, and can be used as a latch, a register, or to pass incoming Port signals prior to driving them onto the PLD input bus. This is useful for sampling and debouncing inputs to the AND array (keypad inputs, etc.). Additionally, the outputs of the IMCs can be read by the DSP asynchronously at any time through the internal data bus using the csiop register block (see Table 4., page 13). The enable for the latch and clock for the register are driven by a product term from the CPLD. Each product term output is used to latch or clock four IMCs. Port inputs 3-0 can be controlled by one product term and 7-4 by another. Configurations for the IMCs are specified by equations specified in PSDsoft Express. See Application Note AN1171. 31/73 DSM2150F5V Figure 10. Input Macrocell INTERNAL DATA BUS INPUT MACROCELL _ RD ENABLE ( .OE ) OUTPUT Macrocells BC AND Macrocells AB DIRECTION REGISTER PT AND ARRAY I/O Pin PT PLD INPUT BUS Port Driver MUX Q D PT D FF Feedback Q D G LATCH Input Macrocell AI04904C 32/73 DSM2150F5V DSP BUS INTERFACE The "no-glue logic" DSP Bus Interface allows direct connection. DSP address, data, and control signals connect directly to the DSM device. See Appendices for typical connections. DSP address, data and control signals are routed to Flash memory, I/O control (csiop), OMCs, and IMCs within the DMS. The DSP address range for each of these components is specified in PSDsoft ExpressTM. Typical Memory Map, DSM2150F5V and ADSP21535 BLACKFIN DSP There many different ways to place (or map) the addresses of DSM memory and I/O depending on system requirements. The DPLD allows complete mapping flexibility. Figure 11., page 34 shows one possible system memory map. In this example, the DSP will bypass it's internal boot ROM at power-on and begin executing code directly from the DSM2150F5V secondary Flash memory. While executing this code, the DSP will load the contents of the DSM2150F5V main Flash memory into the ADSP-21535 internal SRAM, then execute code from that high performance SRAM. The advantage of this is speed, flexibility, IAP, clean software partitioning, and parameter storage. - Loading external Flash memory to internal SRAM by 16-bits is faster than booting by 8bits. Also, subsequent loading of new memory overlays during runtime is also faster by 16bits. - Bypassing internal DSP boot ROM and executing from DSM secondary memory provides total flexibility to meet system requirements. Like having custom boot ROM programmable by JTAG. In-Application Programming (IAP) can be implemented by placing custom loader code in DSM secondary flash which, when executed, allows the DSP to receive data over any communication channel (i.e. USB) and write new code/data the DSM main flash memory. Since the DSM Flash arrays are independent, it is possible to read from the secondary flash while writing to the main Flash. - Since the DSM secondary Flash has smaller sector sizes, small data sets and calibration constants may be stored there. EEPROM emulation techniques can be used. - Placing start-up and IAP code in DSM secondary Flash keeps it totally separate DSM main flash memory, affording clean software partitioning. This also ensures robust system operaton since start-up code will always be there and removed from accitental WRITEs or erasures of DSM main flash. The nomenclature fs0..fs7 in Figure 11., page 34 are designators for the individual sectors of Main Flash memory, 64 KBytes each. csboot0..csboot3 are designators for the individual Secondary Flash memory segments, 8 KBytes each. csiop designates the DSM control register block. The designer may easily specify memory mapping in a point-and-click software environment using PSDsoft ExpressTM. Specifying the Memory Map with PSDsoft ExpressTM The memory map shown in Figure 11., page 34 can be easily implemented using PSDsoft ExpressTM in a point-and-click environment. PSDsoft ExpressTM will generate Hardware Definition Language (HDL) statements of the ABEL language. Table 12., page 35 shows the resulting equations generated by PSDsoft ExpressTM. Specifying these equations using PSDsoft ExpressTM is very simple. Figure 12., page 35 shows how to specify the equation for the 64 KByte Flash memory segment, fs0. Notice fs0 is qualified with the signal AMS0. This specification process is repeated for all other Flash memory segments, the csiop register block, and any external chip select signals that may be needed. - 33/73 DSM2150F5V Figure 11. Memory Map, ADSP-21535 9FFFF fs7 64K bytes Main Flash 90000 8FFFF fs6 64K bytes Main Flash 80000 7FFFF fs5 64K bytes Main Flash 70000 6FFFF fs4 64K bytes Main Flash 60000 5FFFF fs3 64K bytes Main Flash 50000 4FFFF fs2 64K bytes Main Flash 40000 3FFFF fs1 64K bytes Main Flash 30000 2FFFF fs0 64K bytes Main Flash 20000 Nothing Mapped 10000-100FF csiop, Control Regs Nothing Mapped 06000-07FFF 04000-05FFF 02000-03FFF 00000-01FFF csboot, 8KB 2nd Flash csboot, 8KB 2nd Flash csboot, 8KB 2nd Flash csboot, 8KB 2nd Flash AI05778 34/73 DSM2150F5V Table 12. HDL Statements Generated from PSDsoft Express to Implement Memory Map csiop = ((address >= ^h10000) & (address <= ^h100FF) & (!_ams0)); fs0 = ((address >= ^h20000) & (address <= ^h2FFFF) & (!_ams0)); csiop = ((address >= ^h10000) & (address <= ^h100FF) & (!_ams0)); fs0 = ((address >= ^h20000) & (address <= ^h2FFFF) & (!_ams0)); fs1 = ((address >= ^h30000) & (address <= ^h3FFFF) & (!_ams0)); fs2 = ((address >= ^h40000) & (address <= ^h4FFFF) & (!_ams0)); fs3 = ((address >= ^h50000) & (address <= ^h5FFFF) & (!_ams0)); fs4 = ((address >= ^h60000) & (address <= ^h6FFFF) & (!_ams0)); fs5 = ((address >= ^h70000) & (address <= ^h7FFFF) & (!_ams0)); fs6 = ((address >= ^h80000) & (address <= ^h8FFFF) & (!_ams0)); fs7 = ((address >= ^h90000) & (address <= ^h9FFFF) & (!_ams0)); csboot0 = ((address >= ^h0000) & (address <= ^h1FFF) & (!_ams0)); csboot1 = ((address >= ^h2000) & (address <= ^h3FFF) & (!_ams0)); csboot2 = ((address >= ^h4000) & (address <= ^h5FFF) & (!_ams0)); csboot3 = ((address >= ^h6000) & (address <= ^h7FFF) & (!_ams0)); Figure 12. PSDsoft ExpressTM Memory Mapping 35/73 36/73 ADSP-21535 BlackFin DSM2150F5V WRITE READ BYTE SELECT 1 MEM SELECT 0 CNTL0 (_wr) CNTL1 (_rd) CNTL2 (_bhe) PC6 PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O NO CONNECT _AWE _AOE _ABE1 _AMS0 _AMS1 _AMS2 _AMS3 _ABE2 _ARE ARDY DATA7-DATA0 DATA15-DATA8 8 DATA PG7-PG0 PF7-PF0 8 DATA DSM2150F5V INTERRUPT NMI PLL BYPASS BYPASS CLOCK OUT CLKOUT ADSP-21535 Blackfin DSP OSC CLKIN1 RTC XTAL 32.768KHz XTALI XTALO GPIO/INTR/ SPI SEL 512 KByte x16 Flash Mem 32 KByte x16 Flash Mem 16-Cell PLD 16 PF15-0 SERIAL DEVICE 6 PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O SERIAL DEVICE 6 SPI SERIAL DEVICE 3 PC7 PD0 PD1 PD3 PE4 PE5 PE6 PE7 I/O I/O I/O I/O I/O I/O I/O I/O VCC 3 SPI SERIAL DEVICE 10k optional TSTAT optional _TERR 33 UART DEVICE 2 2 SLEEP _RESET _RESET UART DEVICE _ABE0 (ADDR0) _ABE3 (ADDR1) ADDR2 SPORT0 ADDR3 ADDR4 ADDR5 ADDR6 SPORT1 ADDR7 ADDR8 ADDR9 ADDR10 SPI0 ADDR11 ADDR12 ADDR13 ADDR14 SPI1 ADDR15 ADDR16 ADDR17 ADDR18 UART0 (IrDA) ADDR19 ADDR20 ADDR21 UART1 SLEEP A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 PC0 PC1 PC2 PC3 PC4 PC5 PD2 (_csi) _RESET TMS PE0 TCK PE1 TDI PE2 TDO PE3 ADDR0 ADDR1 ADDR2 ADDR3 ADDR4 ADDR5 ADDR6 ADDR7 ADDR8 ADDR9 ADDR10 ADDR11 ADDR12 ADDR13 ADDR14 ADDR15 ADDR16 ADDR17 ADDR18 ADDR19 ADDR20 ADDR21 DSP JTAG CONNECTOR PWM/TIMER/ CAPTURE BMODE0 BMODE1 BMODE2 3 TMS TCK TDI TDO _RESET TMR2-0 Figure 13. Typical Connections, DSM2150F5V and ADSP-21535 Blackfin DSP USB DEVICE(s) 8 USB OPTIONALLY COMBINE JTAG CONNECTORS AND CHAIN DEVICES 33 PCI BUS 54 PCI TDI TDO TCK TMS _TRST _EMU JTAG TDI JTAG TDO JTAG TCK JTAG TMS JTAG _TRST EMULATOR STATUS DSM JTAG CONNECTOR AI05777 SDRAM SYNC MEM ADSP-21062L SHARC DSP DSM2150F5V TIMER OUT PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O TIMEXP WRITE READ BOOT MEM SELECT CNTL0 (_wr) CNTL1 (_rd) CNTL2 ADSP-21062 SHARC DSP INTERRUPT SOURCES 512 KByte x8 Flash Mem 32 KByte x8 Flash Mem 16 Cell PLD DATA23-DATA16 PF7-PF0 8 DATA PD0 PD1 PD2 PD3 PC6 PC7 PLD & I/O PLD & I/O 3 IRQ2-0 _WR _RD _BMS _WRH _MS3-0 ACK DATA47-DATA8 ADDR31-ADDR22 PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O CLOCK CIRCUITRY CLOCKS GPIO 4 FLAG3-0 PERIPHERAL 6 LINK PORT 0 I/O I/O I/O I/O PERIPHERAL 6 LINK PORT 1 PERIPHERAL 6 LINK PORT 2 PG0 PG1 PG2 PG3 PG4 PG5 PG6 PG7 I/O I/O I/O I/O I/O I/O I/O I/O PERIPHERAL 6 LINK PORT 3 VCC PERIPHERAL 6 LINK PORT 4 PERIPHERAL 6 PD0 PD1 PD2 PD3 PE4 PE5 PE6 PE7 I/O I/O I/O I/O I/O I/O I/O I/O 10k LINK PORT 5 optional TSTAT optional _TERR TMS TCK TDI TDO _RESET PE0 PE1 PE2 PE3 33 SERIAL DEVICE _RESET _RESET 6 SPORT0 ADDR0 ADDR1 ADDR2 ADDR3 ADDR4 ADDR5 ADDR6 ADDR7 ADDR8 ADDR9 ADDR10 ADDR11 ADDR12 ADDR13 ADDR14 ADDR15 ADDR16 ADDR17 ADDR18 ADDR19 ADDR20 ADDR21 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 PC0 PC1 PC2 PC3 PC4 PC5 ADDR0 ADDR1 ADDR2 ADDR3 ADDR4 ADDR5 ADDR6 ADDR7 ADDR8 ADDR9 ADDR10 ADDR11 ADDR12 ADDR13 ADDR14 ADDR15 ADDR16 ADDR17 ADDR18 ADDR19 ADDR20 ADDR21 DSM JTAG CONNECTOR Figure 14. Typical Connections, DSM2150F5V and ADSP-21062 SHARC DSP SERIAL DEVICE EBOOT LBOOT 6 SPORT1 TMS TCK TDI TDO _RESET HOST HOST INTERFACE OPTIONALLY COMBINE JTAG CONNECTORS AND CHAIN DEVICES 33 JTAG TDI JTAG TDO JTAG TCK JTAG TMS JTAG _TRST EMULATOR STATUS PERIPHERAL DMA CONTROL TDI TDO TCK TMS _TRST _EMU DSP JTAG CONNECTOR DSM2150F5V AI05780 SHARC 37/73 38/73 ADSP-TS101S TigerSHARC DSM2150F5V WRITE LOW BYTE READ BOOT MEM SELECT CNTL0 (_wr) CNTL1 (_rd) CNTL2 PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O _WRL _RD _BMS _WRH _MS0 _MS1 DATA63-DATA8 ADDR31-ADDR22 DSM2150F5V TIMER OUT _TMROE INTERRUPT SOURCES 32 KByte x8 Flash Mem 16 Cell PLD DATA7-DATA0 PF7-PF0 8 DATA PC6 PC7 PLD & I/O PLD & I/O 4 512 KByte x8 Flash Mem _INTR3-0 PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O ADSP-TS101S TigerSHARC DSP CLOCK CIRCUITRY PD0 PD1 PD2 PD3 I/O I/O I/O I/O CLOCKS 4 GPIO FLAG3-0 11 PERIPHERAL LINK PORT 0 11 PERIPHERAL LINK PORT 1 PG0 PG1 PG2 PG3 PG4 PG5 PG6 PG7 I/O I/O I/O I/O I/O I/O I/O I/O 11 PERIPHERAL LINK PORT 2 VCC 11 PERIPHERAL LINK PORT 3 PD0 PD1 PD2 PD3 PE4 PE5 PE6 PE7 I/O I/O I/O I/O I/O I/O I/O I/O 10k optional TSTAT optional _TERR TMS TCK TDI TDO 33 Figure 15. Typical Connections, ADSP-TS101S TigerSHARC DSP HOST HOST INTERFACE SDRAM _RESET SYNC MEM ADDR0 ADDR1 ADDR2 ADDR3 ADDR4 ADDR5 ADDR6 ADDR7 ADDR8 ADDR9 ADDR10 ADDR11 ADDR12 ADDR13 ADDR14 ADDR15 ADDR16 ADDR17 ADDR18 ADDR19 ADDR20 ADDR21 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 PC0 PC1 PC2 PC3 PC4 PC5 PE0 PE1 PE2 PE3 _RESET ADDR0 ADDR1 ADDR2 ADDR3 ADDR4 ADDR5 ADDR6 ADDR7 ADDR8 ADDR9 ADDR10 ADDR11 ADDR12 ADDR13 ADDR14 ADDR15 ADDR16 ADDR17 ADDR18 ADDR19 ADDR20 ADDR21 DSM JTAG CONNECTOR PERIPHERAL EBOOT DMA CONTROL _RESET TMS TCK TDI TDO _RESET OPTIONALLY COMBINE JTAG CONNECTORS AND CHAIN DEVICES 33 TDI TDO TCK TMS _TRST _EMU JTAG TDI JTAG TDO JTAG TCK JTAG TMS JTAG _TRST EMULATOR STATUS DSP JTAG CONNECTOR AI05779 ADSP-2191M DSM2150F5V 512 KByte x8 Flash Mem 32 KByte x8 Flash Mem 16 Cell PLD PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O BUS_REQUEST BUS_GRANT GRANT_HUNG _BR _BG _BGH PLL BYPASS CLOCK OUT BYPASS CLKOUT CLOCK or XTAL _WR _RD _BMS _IOMS _MSx ACK CNTL0 (_wr) CNTL1 (_rd) CNTL2 PD0 PD1 PC0 PC1 PC2 PC3 PD2 PD3 PG0 PG1 PG2 PG3 PG4 PG5 PG6 PG7 I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O 8 DATA PF7-PF0 WRITE READ BOOT MEM SELECT I/O MEM SELECT MEM SELECT CLKIN PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O XTAL ADSP-2191 Note: DSP HCLK is limited to 45MHz to satisfy DSM2150F5V parameter, tAVWL. If HCLK is greater than 45MHz, a non-inverting buffer should be placed between WR signal output from ADSP219x and CNTL0 input to DSM2150F5V. This de- I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O VCC PF0 PF1 PF2 PF3 PF4 PF5 PF6 PF7 PF8 PF9 PF10 PF11 PF12 PF13 PF14 PF15 DATA7-DATA0 SERIAL DEVICE PE4 PE5 PE6 PE7 SPORT0 SERIAL CHN Figure 16. Typical Connections, DSM2150F5V and ADSP-2191M SERIAL DEVICE SPORT1 SERIAL CHN I/O I/O I/O I/O 10k optional TSTAT optional _TERR 33 SERIAL SPI DEVICE _RESET _RESET RESET SPORT2 SERIAL or (2) SPI A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 PC4 PC5 PC6 PC7 ADDR0 ADDR1 ADDR2 ADDR3 ADDR4 ADDR5 ADDR6 ADDR7 ADDR8 ADDR9 ADDR10 ADDR11 ADDR12 ADDR13 ADDR14 ADDR15 ADDR16 ADDR17 ADDR18 ADDR19 DSM JTAG CONNECTOR UART DEVICE RxD, TxD PE0 PE1 PE2 PE3 TMS TCK TDI TDO TMS TCK TDI TDO _RESET TIMER/ CAPTURE TMR2-0 BMODE0 BMODE1 OPMODE 33 TDI TDO TCK TMS _TRST _EMU OPTIONALLY COMBINE JTAG CONNECTORS AND CHAIN DEVICES JTAG TDI JTAG TDO JTAG TCK JTAG TMS JTAG _TRST EMULATOR STATUS HOST PORT Hx DSP JTAG CONNECTOR DSM2150F5V lays the falling edge of WR to satisfy tAVWL, However, the Write Hold Enable (E_WHE) memory space setting of the ADSP-2191 must be set to hold the DSP address after the delayed rising edge of WR. AI05781 39/73 40/73 DSM2150F5V 512 KByte x8 Flash Mem 32 KByte x8 Flash Mem PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O ADSP-2188M DSM2150F5V BUS_REQUEST BUS_GRANT GRANT_HUNG _BR _BG _BGH ADSP-2188M 16 Cell PLD PWR_DOWN_IN _PWD PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O PLD & I/O CLOCK or XTAL XTAL N/C N/C 8 DATA (Upper byte) DATA15-DATA8 PF7-PF0 PG0 PG1 PG2 PG3 PG4 PG5 PG6 PG7 PD3 PC0 PC1 PC2 PC3 PLD & I/O I/O I/O I/O I/O I/O I/O I/O I/O FL0 FL1 FL2 CLKIN I/O I/O I/O _WR _RD _BMS _IOMS _DMS _PMS _CMS CNTL0 (_wr) CNTL1 (_rd) CNTL2 PD0 PD1 PLD & I/O PLD & I/O PLD & I/O PLD & I/O WRITE READ BYTE MEM SELECT I/O MEM SELECT DATA MEM SELECT Figure 17. Typical Connections, DSM2150F5V and ADSP-2188M I/O I/O I/O I/O INTR/I_O INTR/I_O INTR/I_O INTR/I_O PF0/MODEA PF1/MODEB PF2/MOCEC PF3 _IRQE/PF4 _IRQL0/PF5 _IRQL1/PF6 _IRQ2/PF7 VCC SERIAL DEVICE SPORT1 SERIAL CHN PWDACK DEBUG _RESET SPORT0 SERIAL CHN PE4 PE5 PE6 PE7 I/O I/O I/O I/O 10k optional TSTAT optional _TERR PD2 (_CSI) 33 _RESET PE0 PE1 PE2 PE3 TMS TCK TDI TDO SERIAL DEVICE _RESET A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 D16 D17 D18 D19 D20 D21 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 PC4 PC5 PC6 PC7 POWER DOWN ADDR0 ADDR1 ADDR2 ADDR3 ADDR4 ADDR5 ADDR6 ADDR7 ADDR8 ADDR9 ADDR10 ADDR11 ADDR12 ADDR13 ADDR14 ADDR15 ADDR16 ADDR17 ADDR18 ADDR19 DSM JTAG CONNECTOR ICE-Port TMS TCK TDI TDO _RESET AI05782 DSM2150F5V I/O PORTS There are seven programmable I/O ports: Ports A, B, C, D, E, F, and G. However, typically only four of these ports are available in 8-bit DSP data configuration, and 3 ports with 16-bit data. Each of the ports is eight bits except Port D, which is 4 bits. Each port pin is individually user configurable, thus allowing multiple functions per port. The ports are configured using PSDsoft ExpressTM or by the DSP writing to on-chip registers in the csiop block. The topics discussed in this section are: s General Port architecture s Port operating modes s csiop Port registers s Port Data Registers s Individual Port functionality. General Port Architecture The general architecture of the I/O Port block is shown in Figure 19., page 44. Individual Port architectures are shown in Figure 19., page 44 to Figure 21., page 46. In general, once the purpose for a port pin has been defined in PSDsoft ExpressTM, that pin is no longer available for other purposes. Exceptions are noted. The ports contain an output multiplexer whose select signals are driven by the configuration bits determined by PSDsoft Express. Inputs to the multiplexer include the following: s Output data from the Data Out register (for MCU I/O Mode) s CPLD Macrocell output (OMC) s External Chip Selects ESC0-7 from the DPLD to Port C pins only. The Port Data Buffer (PDB) is a tri-state buffer that allows only one source at a time to be read by the DSP. The Port Data Buffer (PDB) is connected to the Internal Data Bus for feedback and can be read by the DSP. The Data Out and Macrocell outputs, Direction and Drive Registers, and port pin input are all connected to the Port Data Buffer (PDB). The Port pin's tri-state output driver enable is controlled by a two input OR gate whose inputs come from the CPLD AND Array enable product term and the Direction Register. If the enable product term of any of the Array outputs are not defined and that port pin is not defined as a CPLD output in PSDsoft ExpressTM, then the Direction Register has sole control of the buffer that drives the port pin. The contents of these registers can be altered by the DSP. The Port Data Buffer (PDB) feedback path allows the DSP to check the contents of the registers. Ports A, B, and C have IMCs. The IMCs can be configured as registers (for sampling or debouncing), as transparent latches, or direct inputs to the PLDs. The registers and latches are clocked by a product term from the PLD AND Array. The outputs from the IMCs drive the PLD input bus and can be read by the DSP. See Input Macrocell, page 32. Port Operating Modes The I/O Ports have several modes of operation. Modes are defined using PSDsoft ExpressTM, and then runtime control from the DSP can occur using the registers in the csiop block. See Application Note AN1171 for more detail. Table 13., page 43 summarizes which modes are available on each port. Each of the port operating modes are described in the following sections. 41/73 DSM2150F5V Figure 18. General Port Architecture DATA OUT REG. D WR PORT PIN OUTPUT MUX Macrocell Outputs EXT CS INTERNAL DATA BUS READ MUX P D B DATA IN Q DATA OUT ENABLE OUT DIR REG. D WR ENABLE PRODUCT TERM (.OE) Input Macrocell CPLD-INPUT AI05772 Q MCU I/O Mode In MCU I/O Mode, DSP I/O Ports are expanded. The DSP can read I/O pins, set the direction of I/O pins, and change the state of I/O pins by accessing the registers in the csiop block. The csiop registers (Data In, Data Out, and Direction) that implement MCU I/O Mode are defined Table 4., page 13 and Appendix A. Data In Register for MCU I/O Mode. The DSP may read the Data In registers in the csiop block at any time to determine the logic state of a Port pin. This will be the state at the pin regardless of whether it is driven by a source external to the DSM or driven internally from the DSM device. Reading a logic '0' for a bit in a Data In register means the corresponding Port pin is also at logic zero. Reading logic '1' means the pin is logic '1.' Each bit in a Data In register corresponds to an individual Port pin. For a given Port, Bit 0 in a Data In register corresponds to pin 0 of the Port. Example, Bit 0 of the Data In register for Port B corresponds to Port B pin PB0. Data Out Register for MCU I/O Mode. The DSP may write (or read) the Data Out register in the csiop block at any time. Writing the Data Out reg- ister will change the logic state of a Port pin only if it is not driven or controlled by the CPLD. Writing a logic '0' to a bit in a Data Out register will force the corresponding Port pin to be logic zero. Writing logic one will drive the pin to logic one. Each bit in the Data Out registers correspond to Port pins the same way as the Data In registers described above. When some pins of a Port are driven by the CPLD, writing to the corresponding bit in a Data Out register will have no effect as the CPLD overrides the Data Out register. Direction Register for MCU I/O Mode. The Direction Register, in conjunction with the output enable, controls the direction of data flow in the I/O Ports. Any bit set to '1' in the Direction Register causes the corresponding pin to be an output, and any bit set to '0' causes it to be an input. The default mode for all port pins is input. Figure 19., page 44 shows the Port Architecture for Ports A, B and C. The direction of data flow for are controlled not only by the direction register, but also by the output enable product term from the PLD AND Array. If the output enable product term is not active, the Direction Register has sole control of a given pin's direction. 42/73 DSM2150F5V Drive Select Register The Drive Select Register configures the pin driver as Open Drain or CMOS (standard push/pull) for some port pins, and controls the slew rate for the other port pins. An external pull-up resistor should be used for pins configured as Open Drain. Open Drain outputs are diode clamped, thus the maximum voltage on an pin configured as Open Drain is VCC + 0.7V. A pin can be configured as Open Drain if its corresponding bit in the Drive Select Register is set to a '1.' The default pin drive is CMOS. Note: The slew rate is a measurement of the rise and fall times of an output. A higher slew rate means a faster output response and may create more electrical noise. A pin operates in a high slew rate when the corresponding bit in the Drive Register is set to '1.' The default rate is standard slew. See Appendix A for Drive Register bit definitions. DSP Data Bus Port F is used for DSP data lines D0-D7 when DSM2150F5V is configured for 8-bit operation. Port G is additionally used for DSP data lines D8D15 when configured for 16-bit operation. Table 13. Port Operating Modes Port Mode MCU I/O DSP data bus for 8-bit config DSP data bus for 16-bit config PLD Input though IMC PLD Input directly McellA Outputs McellB Outputs Additional External CS Outputs JTAG ISP Port A Yes No No Yes No Yes No No No Port B Yes No No Yes No No Yes No No Port C Yes No No Yes No No No Yes No Port D Yes No No No Yes No No No No Port E Yes No No No No No No No Yes1 Port F No Yes Yes No No No No No No Port G Yes2 No Yes No No No No No No PLD Inputs Inputs from Ports A, B, and C to the DPLD and CPLD come through IMCs. Inputs from Port D to PLDs are routed directly in and do not use IMCs. PLD Outputs Outputs from the CPLD to Port A come from the OMC group MCELLA0-7. Likewise, Port B is driven by MCELLB0-7. Outputs from the DPLD to Port C come from the external chip select logic block ECS0-7. JTAG In-System Programming (ISP) Some of the pins on Port E implement IEEE 1194.1 JTAG bus for In-System Programming (ISP). You can multiplex the function of these Port E JTAG pins with other functions. See the section entitled "Programming In-Circuit Using JTAG ISP", and Application Note AN1153. Enable Out The Enable Out register can be read by the DSP. It contains the output enable values for a given port. A logic '1' indicates the driver is in output mode. A logic '0' indicates the driver is in tri-state and the pin is in input mode. Note: 1. Can be multiplexed with other I/O functions. 2. Only in 8-bit DSP data bus configuration. 43/73 DSM2150F5V Ports A, B, and C - Functionality and Structure Ports A and B have similar functionality and structure, as shown in Figure19. The two ports can be configured to perform one or more of the following functions: s MCU I/O Mode s CPLD Output - Macrocells McellA7-McellA0 can be connected to Port A. McellB7-McellB0 can be connected to Port B. Figure 19. Port A, B, and C Structure DATA OUT Register D WR PORT Pin OUTPUT MUX Q s s s DPLD Output - External Chip Select (ECS7ECS0) can be connected to Port C. CPLD Input - Via the Input Macrocells (IMC). Open Drain/Slew Rate - pins PC7-PC0 can be configured to fast slew rate. Pins PA7-PA0, PB7-PB0, and PG7-PB0 and can be configured to Open Drain Mode. DATA OUT MCELLA7-MCELLA0 (Port A) MCELLB7-MCELLB0 (Port B) Ext.CS (Port C) READ MUX P D B DATA IN INTERNAL DATA BUS ENABLE OUT DIR Register D WR ENABLE PRODUCT TERM (.OE) INPUT MACROCELL Q CPLD-INPUT AI04936B 44/73 DSM2150F5V Port D - Functionality and Structure Port D has four I/O pins. See Figure 20. Port D can be configured to perform one or more of the following functions: s MCU I/O Mode s CPLD Input - direct input to the CPLD, no Input Macrocells (IMC) Port D pins can be configured in PSDsoft Express as input pins for other dedicated functions: Figure 20. Port D Structure s s s CLKIN (PD1) as input to the Macrocells Flipflops and APD counter PSD Chip Select Input (CSI, PD2). Driving this signal High disables the Flash memory, SRAM and csiop. Write High-Byte input (WRH, PD3) used for some 16-bit DSP connections. DATA OUT Register DATA OUT D WR Q PORT D PIN INTERNAL DATA BUS READ MUX P D B DATA IN DIR Register D WR Q CPLD - INPUT AI05774 45/73 DSM2150F5V Port E - Functionality and Structure Port E can be configured to perform one or more of the following functions (see Figure 21): s MCU I/O Mode s In-System Programming (ISP) - JTAG port can be enabled for programming/erase of the PSD device. (See PROGRAMMING INCIRCUIT USING JTAG ISP, page 49, for more information on JTAG programming.) s Open Drain - pins can be configured in Open Drain Mode Figure 21. Port E and G Structure DATA OUT Register D WR Q PORT Pin DATA OUT Port F - Functionality and Structure Port F will always be connected to DSP data bus D7-D0. Port G - Functionality and Structure Port G can be configured to perform one or more of the following functions: s Connected to DSP data bus D15-D8 in 16-bit configuration. s MCU I/O Mode in 8-bit configuration. s Open Drain - pins can be configured in Open Drain Mode in 8-bit configuration. INTERNAL DATA BUS READ MUX P D B DATA IN ENABLE OUT DIR Register D WR ENABLE PRODUCT TERM (.OE) Q AI05773 46/73 DSM2150F5V POWER MANAGEMENT The device offers configurable power saving options. These options may be used individually or in combinations, as follows: - All memory blocks in the device are built with zero-power technology. Zero-power technology puts the memories into Standby Mode when address/data inputs are not changing (zero DC current). As soon as a transition occurs on an address input, the affected memory "wakes up", changes and latches its outputs, then goes back to standby. The designer does not have to do anything special to achieve memory Standby Mode when no inputs are changing--it happens automatically. Both PLDs (DPLD and CPLD) are also Zeropower, but this is not the default operation. The DSP must set a bit at run-time to achieve Zero-power as described. - PSD Chip Select Input (CSI, PD2) can be used to disable the internal memories and csiop registers, placing them in Standby Mode even if address inputs are changing. This feature does not block any internal signals or disable the PLDs. There is a slight penalty in memory access time when PSD Chip Select Input (CSI, PD2) makes its initial transition from deselected to selected. - The PMMR registers can be written by the DSP at run-time to manage power. The device has a Turbo Bit in the PMMR0 register. This bit can be set to turn the Turbo Mode off (the default is with Turbo Mode turned on). While Turbo Mode is off, the PLDs can achieve standby current when no PLD inputs are changing (zero DC current). Even when inputs do change, significant power can be saved at lower frequencies (AC current), compared to when Turbo Mode is on. When the Turbo Mode is on, there is a significant DC current component and the AC component is higher. Further significant power savings can be achieved by blocking signals that are not used in DPLD or CPLD logic equations. The "blocking bits" in PMMR registers can be set to logic '1' by the DSP to block designated signals from reaching both PLDs. Current consumption of the PLDs is directly related to the composite frequency of the changes on their inputs (see Figure 23., page 51), so blocking unused PLD inputs can significantly lower PLD operating frequency and power consumption. The DSP also has the option of blocking certain PLD inputs when not needed, then letting them pass for when needed for specific logic operations. Table 4., page 13 and Appendix A define the PMMR registers. - 47/73 DSM2150F5V RESET TIMING AND DEVICE STATUS AT RESET Power On Reset Upon Power-up, the device requires a Reset (RESET) pulse of duration tNLNH-PO after VCC is steady. During this time period, the device loads internal configurations, clears some of the registers and sets the Flash memory into Read Array Mode. After the rising edge of Reset (RESET), the device remains in the Reset Mode for an additional period, tOPR, before the first memory access is allowed. Upon Power On reset, internal sector selects FS07 and CSBOOT0-7 must all be inactive and Write Strobe (WR, CNTL0) inactive (logic '1') for maximum security of the data contents and to remove the possibility of a byte/word being written on the first edge of Write Strobe (WR, CNTL0). Any Flash memory WRITE cycle initiation is prevented automatically when VCC is below VLKO. Figure 22. Reset (RESET) Timing Warm Reset Once the device is up and running, the device can be reset with a pulse of a much shorter duration, tNLNH. The same tOPR period is needed before the device is operational after warm reset. Figure 22 shows the timing of the Power-up and warm reset. I/O Pin, Register, and PLD Status at Reset Table 14 shows the I/O pin, register and PLD status during Power-on Reset, warm reset and Power-down Mode. PLD outputs are always valid during warm reset, and they are valid in Power On Reset once the internal device Configuration bits are loaded. This loading of the device is completed typically long before the VCC ramps up to operating level. Once the PLD is active, the state of the outputs are determined by the PSDsoft Express equations. VCC VCC(min) tNLNH tNLNH-A Warm Reset tNLNH-PO Power-On Reset tOPR tOPR RESET AI02866b Table 14. Status During Power-on Reset, Warm Reset and Power-down Mode Port Configuration MCU I/O PLD Output Power-on Reset Input Mode Valid after internal PSD configuration bits are loaded (almost immediately) Input Mode Valid Warm Reset Register PMMR0 and PMMR2 OMC Flip-flop status All other registers Power-on Reset Cleared to '0' Cleared to '0' by internal Power-on Reset Cleared to '0' Unchanged Warm Reset Depends on .re and .pr equations Cleared to '0' 48/73 DSM2150F5V PROGRAMMING IN-CIRCUIT USING JTAG ISP In-System Programming (ISP) can be performed through the JTAG signals on Port E. This serial interface allows programming of the entire DSM device or subsections (i.e. only Flash memory but not the PLDs) without and participation of the DSP. A blank DSM device soldered to a circuit board can be completely programmed in 15to 35 seconds. The basic JTAG signals; TMS, TCK, TDI, and TDO form the IEEE-1149.1 interface. The DSM device does not implement the IEEE-1149.1 Boundary Scan functions. The DSM uses the JTAG interface for ISP only. However, the DSM device can reside in a standard JTAG chain with other JTAG devices as it will remain in BYPASS Mode while other devices perform Boundary Scan. ISP programming time can be reduced as much as 30% by using two more signals on Port E, TSTAT and TERR in addition to TMS, TCK, TDI and TDO. See Table 15. The FlashLINKTM JTAG programming cable available from STMicroelectronics for $USD59 and PSDsoft Express software that is available at no charge from www.st.com/psm is all that is needed to program a DSM device using the parallel port on any PC or laptop. By default, the four pins on Port C are enabled for the basic JTAG signals TMS, TCK, TDI, and TDO on a blank device (and as shipped from factory). See Application Note AN1153 for more details on JTAG In-System Programming (ISP). Standard JTAG Signals The standard JTAG signals (TMS, TCK, TDI, and TDO) can be enabled by any of three different conditions that are logically ORed. The following symbolic logic equation specifies the conditions enabling the four basic JTAG signals (TMS, TCK, TDI, and TDO) on their respective Port E pins. For purposes of discussion, the logic label JTAG_ON is used. When JTAG_ON is true, the four pins are enabled for JTAG operation. When JTAG_ON is false, the four pins can be used for general device I/O as specified in PSDsoft Express. JTAG_ON can become true by any of three different ways as shown: JTAG_ON = 1. PSDsoft Express Pin Configuration -OR2. PSDsoft Express PLD equation -OR3. DSP writes to register in csiop block Method 1. is most common. This is when the JTAG pins are selected in PSDsoft Express to be "dedicated" JTAG pins. They can always transmit and receive JTAG information because they are "full-time" JTAG pins. Method 2. is used only when the JTAG pins are multiplexed with general I/O functions. For designs that need every I/O pin, the JTAG pins may be used for general I/O when they are not used for ISP. However, when JTAG pins are multiplexed with general I/O functions, the designer must include a way to get the pins back into JTAG Mode when it is time for JTAG operations again. In this case, a single PLD input from Ports A, B, C, or D must be dedicated to switch the Port E pins from I/ O Mode back to ISP Mode at any time. It is recommended to physically connect this dedicated PLD input pin to the JEN\ output signal from the Flashlink cable when multiplexing JTAG signals. See Application Note AN1153 for details. Method 3. is rarely used to control JTAG pin operation. The DSP can set the port E pins to function as JTAG ISP by setting the JTAG Enable Bit in a register of the csiop block, but as soon as the DSM chip is reset, the csiop block registers are cleared, which turns off the JTAG-ISP function. Controlling JTAG pins using this method is not recommended. Table 15. JTAG Port Signals Port E Pin PE0 PE1 PE2 PE3 PE4 PE5 JTAG Signals TMS TCK TDI TDO TSTAT TERR Description Mode Select Clock Serial Data In Serial Data Out Status Error Flag 49/73 DSM2150F5V JTAG Extensions TSTAT and TERR are two JTAG extension signals (must be used as a pair) enabled by a command received over the four standard JTAG signals (TMS, TCK, TDI, and TDO) by PSDsoft Express. They are used to speed Program and Erase cycles by indicating status on device pins instead of having to scan the status out serially using the standard JTAG channel. See Application Note AN1153. TERR indicates if an error has occurred when erasing a sector or programming a byte in Flash memory. This signal goes Low (active) when an Error condition occurs. TSTAT behaves the same as Ready/Busy described previously. TSTAT is inactive logic '1' when the device is in READ Mode (Flash memory con- tents can be read). TSTAT is logic '0' when Flash memory Program or Erase cycles are in progress. TSTAT and TERR can be configured as opendrain type signals with PSDsoft Express. This facilitates a wired-OR connection of TSTAT signals from multiple DSM2150F5V devices and a wiredOR connection of TERR signals from those same devices. This is useful when several devices are "chained" together in a JTAG environment. PSDsoft Express puts TSTAT and TERR signals to open-drain by default. Click on 'Properties' in the JTAG-ISP window of PSDsoft Express to change to standard CMOS push-pull. It is recommended to use 10k pull-up resistors to VCC on all JTAGISP signals on your circuit board. INITIAL DELIVERY STATE When delivered from ST, the device has all bits in the memory and PLDs erased to logic '1.' The DSM Configuration Register Bits are set to '0.' The code, configuration, and PLD logic are loaded using the programming procedure. The four basic JTAG ISP signals (TCK, TMS, TDI, TDO) are ready for ISP function. 50/73 DSM2150F5V AC AND DC PARAMETERS These tables describe the AC and DC parameters of the device: DC Electrical Specification AC Timing Specification s PLD Timing - Combinatorial Timing - Synchronous Clock Mode - Asynchronous Clock Mode - Input MicroCell Timing s DSP Timing - READ Timing - WRITE Timing - Reset Timing The following are issues concerning the parameters presented: - In the DC specification the supply current is given for different modes of operation. Before calculating the total power consumption, determine the percentage of time that the device is in each mode. Also, the supply power is considerably different if the Turbo Bit is '0.' - The AC power component gives the PLD and Flash memory a mA/MHz specification. Figure 23 shows the PLD mA/MHz as a function of the number of Product Terms (PT) used. - The fitter report of PSDsoft Express indicates the number of Product Terms (PTs) used for a given design. This number may be used to estimate PLD power consumption using Figure 23. - In the PLD timing parameters, add the required delay when Turbo Bit is '0.' Figure 23. PLD ICC /Frequency Consumption (3.3V) 60 VCC = 3V 50 ICC - (mA) 40 TU ON ( RBO 100% ) FF 30 O TU 20 10 TURB RB (2 O ON 5%) O TU 0 0 RB 5 O OF F PT 100% PT 25% 10 15 20 25 AI03100 HIGHEST COMPOSITE FREQUENCY AT PLD INPUTS (MHz) 51/73 DSM2150F5V MAXIMUM RATING Stressing the device above the rating listed in the Absolute Maximum Ratings table may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not imTable 16. Absolute Maximum Ratings Symbol TSTG TLEAD VIO VCC VPP VESD Storage Temperature Lead Temperature during Soldering (20 seconds max.)1 Input and Output Voltage (Q = VOH or Hi-Z) Supply Voltage Device Programmer Supply Voltage Electrostatic Discharge Voltage (Human Body Model) 2 -0.6 -0.6 -0.6 -2000 Parameter Min. -65 Max. 125 235 4.0 4.0 14.0 2000 Unit C C V V V V plied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Note: 1. IPC/JEDEC J-STD-020A 2. JEDEC Std JESD22-A114A (C1=100pF, R1=1500, R2=500) 52/73 DSM2150F5V DC AND AC OPERATING AND MEASUREMENT CONDITIONS This section summarizes the operating and measurement conditions, and the DC and AC characteristics of the device. The parameters in the DC and AC Characteristic tables that follow are derived from tests performed under the MeasureTable 17. Operating Conditions Symbol VCC TA Supply Voltage Ambient Operating Temperature (industrial) Parameter Min. 3.0 -40 Max. 3.6 85 Unit V C ment Conditions summarized in the relevant tables. Designers should check that the operating conditions in their circuit match the measurement conditions when relying on the quoted parameters. Table 18. AC Measurement Conditions Symbol CL Load Capacitance Parameter Min. 30 Max. Unit pF Note: 1. Output Hi-Z is defined as the point where data out is no longer driven. Figure 24. AC Measurement I/O Waveform Figure 25. AC Measurement Load Circuit 2.0 V 0.9VCC Test Point 0V AI04947 400 1.5V Device Under Test CL = 30 pF (Including Scope and Jig Capacitance) AI04948 Table 19. Capacitance Symbol CIN COUT CVPP Parameter Input Capacitance (for input pins) Output Capacitance (for input/ output pins) Capacitance (for CNTL2/VPP) Test Condition VIN = 0V VOUT = 0V VPP = 0V Typ.2 4 8 18 Max. 6 12 25 Unit pF pF pF Note: 1. Sampled only, not 100% tested. 2. Typical values are for TA = 25C and nominal supply voltages. 53/73 DSM2150F5V Figure 26. Switching Waveforms - Key WAVEFORMS INPUTS OUTPUTS STEADY INPUT STEADY OUTPUT MAY CHANGE FROM HI TO LO MAY CHANGE FROM LO TO HI WILL BE CHANGING FROM HI TO LO WILL BE CHANGING LO TO HI DON'T CARE CHANGING, STATE UNKNOWN OUTPUTS ONLY CENTER LINE IS TRI-STATE AI03102 Table 20. AC Symbols for PLD Timing Signal Letters A C D E N P Q R S W B M Address Input CEout Output Input Data E Input Reset Input or Output Port Signal Output Output Data RD Input (READ) Chip Select Input, BMS, DMS, IOMS, or FSx WR Input (WRITE) VSTBY Output Output Macrocell t L H V X Z PW Time Logic Level Low Logic Level High Valid No Longer a Valid Logic Level Float Pulse Width Signal Behavior Example:tAVWL - Time from Address Valid to WRITE Input Low. 54/73 DSM2150F5V Table 21. DC Characteristics Symbol VIH VIL VIH1 VIL1 VHYS VLKO Parameter High Level Input Voltage Low Level Input Voltage Reset High Level Input Voltage Reset Low Level Input Voltage Reset Pin Hysteresis VCC (min) for Flash Erase and Program IOL = 20A, VCC = 3.0V VOL Output Low Voltage IOL = 4mA, VCC = 3.0V IOH = -20A, VCC = 3.0V Output High Voltage IOH = -1mA, VCC = 3.0V Stand-by Supply Current Input Leakage Current Output Leakage Current CSI >VCC -0.3V (Note 2,3,4) VSS < VIN < VCC 0.45 < VIN < VCC PLD_TURBO = Off, f = 0MHz (Note 3) PLD_TURBO = On, f = 0MHz During Flash memory WRITE/Erase Only Read only, f = 0MHz -1 -10 2.7 2.8 50 .1 5 0 200 10 0 400 25 0 100 1 10 V A A A A/ PT A/ PT mA mA 2.9 0.15 2.99 0.45 V V Conditions 3.0V < VCC < 3.6V 3.0V < VCC < 3.6V (Note 1) (Note 1) Min. 0.7VCC -0.5 0.8VCC -0.5 0.3 1.5 0.01 2.2 0.1 Typ. Max. VCC + 0.5 0.8 VCC + 0.5 0.2VCC - 0.1 Unit V V V V V V V VOH ISTBY ILI ILO PLD Only ICC (DC) (Note 6) Operating Supply Current Flash memory PLD AC Adder ICC (AC) Flash memory AC Adder Note: 1. 2. 3. 4. 5. 6. Reset has hysteresis. VIL1 is valid at or below 0.2VCC -0.1. VIH1 is valid at or above 0.8VCC. CSI deselected (CSI >VCC -0.3V) or the DSP is not changing state of any address signal. PLD is in non-Turbo Mode, and none of the PLD inputs are switching. No inputs floating, must be solid logic '1' or '0' (pull up to VCC or GND, or actively driven) See Figure 23., page 51 for the PLD current calculation. IOUT = 0mA, meaning outputs are driving no loads. (see Note 5) 1.5 2.0 mA/ MHz 55/73 DSM2150F5V Figure 27. Input to Output Disable / Enable INPUT tER INPUT TO OUTPUT ENABLE/DISABLE tEA AI02863 Table 22. CPLD Combinatorial Timing -12 Symbol Parameter CPLD Input Pin/Feedback to CPLD Combinatorial Output CPLD Input to CPLD Output Enable CPLD Input to CPLD Output Disable CPLD Register Clear or Preset Delay CPLD Register Clear or Preset Pulse Width CPLD Array Delay Minimum time between switching of any PLD inputs which prevents PLD from entering Standby Mode. Any MicroCell PLD inputs that switch less frequently than this parameter allow Standby PLD Mode. 30 27 Add 4 Conditions Min tPD tEA tER tARP tARPW tARD Max 43 45 45 43 PT Aloc Add 4 Turbo Off Add 20 Add 20 Add 20 Add 20 Add 20 Slew Rate1 Sub 6 Sub 6 Sub 6 Sub 6 Unit ns ns ns ns ns ns tTURBO 100 ns Note: 1. Fast Slew Rate output available on Port C and Port F. 56/73 DSM2150F5V Figure 28. Synchronous Clock Mode Timing - PLD tCH tCL CLKIN tS INPUT tH tCO REGISTERED OUTPUT Table 23. CPLD MicroCell Synchronous Clock Mode Timing -12 Symbol Parameter Maximum Frequency External Feedback fMAX Maximum Frequency Internal Feedback (fCNT) Maximum Frequency Pipelined Data tS tH tCH tCL tCO tARD tMIN Input Setup Time Input Hold Time Clock High Time Clock Low Time Clock to Output Delay CPLD Array Delay Minimum Clock Period2 Clock Input Clock Input Clock Input Any MicroCell tCH+tCL 28 Conditions Min 1/(tS+tCO) 1/(tS+tCO-10) 1/(tCH+tCL) 23 0 14 14 26 27 Add 4 Sub 6 Max 20.4 25.6 35.7 Add 4 Add 20 PT Aloc Turbo Off Slew Rate1 Unit MHz MHz MHz ns ns ns ns ns ns ns Note: 1. Fast slew rate output available on Port C and Port F. 2. CLKIN (PD1) tCLCL = tCH + tCL. 57/73 DSM2150F5V Figure 29. Asynchronous Reset / Preset tARPW RESET/PRESET INPUT tARP REGISTER OUTPUT AI02864 Figure 30. Asynchronous Clock Mode Timing (Product Term Clock) tCHA tCLA CLOCK tSA tHA INPUT tCOA REGISTERED OUTPUT AI02859 Table 24. CPLD MicroCell Asynchronous Clock Mode Timing -12 Symbol Parameter Maximum Frequency External Feedback fMAXA Maximum Frequency Internal Feedback (fCNTA) Maximum Frequency Pipelined Data tSA tHA tCHA tCLA tCOA tARD tMINA Input Setup Time Input Hold Time Clock High Time Clock Low Time Clock to Output Delay CPLD Array Delay Minimum Clock Period Any MicroCell 1/fCNTA 38 Conditions Min 1/(tSA+tCOA) 1/(tSA+tCOA-10) 1/(tCHA+tCLA) 10 12 18 15 38 27 Add 4 Add 20 Add 20 Add 20 Sub 6 Max 20.8 26.3 30.3 Add 4 Add 20 PT Aloc Turbo Off Slew Rate Unit MHz MHz MHz ns ns ns ns ns ns ns 58/73 DSM2150F5V Figure 31. Input MicroCell Timing (Product Term Clock) t INH PT CLOCK t INL t IS INPUT t IH OUTPUT t INO AI03101 Table 25. Input MicroCell Timing -12 Symbol tIS tIH tINH tINL tINO Parameter Input Setup Time Input Hold Time NIB Input High Time NIB Input Low Time NIB Input to Combinatorial Delay Conditions Min (Note 1) (Note 1) (Note 1) (Note 1) (Note 1) 0 23 13 13 62 Add 4 Add 20 Add 20 Max PT Aloc Turbo Off Unit ns ns ns ns ns Note: 1. Inputs from Port A, B, and C relative to register/latch clock from the PLD. 59/73 DSM2150F5V Figure 32. READ Timing tAVQV ADDRESS NON-MULTIPLEXED BUS DATA NON-MULTIPLEXED BUS tSLQV CSI tRLQV tRLRH RD tRHQZ tRHQX ADDRESS VALID DATA VALID AI04908 Table 26. READ Timing -12 Symbol tAVQV tSLQV tRLQV tRHQX tRLRH tRHQZ Parameter Address Valid to Data Valid CS Valid to Data Valid RD to Data Valid 8-Bit Bus RD Data Hold Time RD Pulse Width RD to Data High-Z 1 40 20 Conditions Min (Note 1) Max 120 120 35 Turbo Off Add 20 Unit ns ns ns ns ns ns Note: 1. Any input used to select an internal DSM function. 60/73 DSM2150F5V Figure 33. WRITE Timing tAVWL ADDRESS NON-MULTIPLEXED BUS DATA NON-MULTIPLEXED BUS tSLWL CSI tDVWH WR t WLWH t WHDX t WHAX ADDRESS VALID DATA VALID AI04909 Table 27. WRITE Timing -12 Symbol tAVWL tSLWL tDVWH tWHDX_8 tWHDX_16 tWLWH tWHAX1 tWHAX2 tWHPV tDVMV tWLMV Note: 1. 2. 3. 4. 5. Parameter Address Valid to Leading Edge of WR CS Valid to Leading Edge of WR WR Data Setup Time WR Data Hold Time for 8-bit mode WR Data Hold Time for 16-bit mode WR Pulse Width Trailing Edge of WR to Address Invalid Trailing Edge of WR to DPLD Address Invalid Trailing Edge of WR to Port Output Valid Using I/O Port Data Register Data Valid to Port Output Valid Using MicroCell Register Preset/Clear WR Valid to Port Output Valid Using MicroCell Register Preset/Clear Conditions Min (Note 1) 8 8 45 5 (Note 5) 8 45 1.75 (Note 4) 0 33 (Note 3) (Note 2) 68 70 Max Unit ns ns ns ns ns ns ns ns ns ns ns Any input used to select an internal PSM function. Assuming data is stable before active WRITE signal. Assuming WRITE is active before data becomes valid. TWHAX2 is the address hold time for DPLD inputs that are used to generate Sector Select signals for internal DSM memory. tWHAX_16 is 11ns when writing to the Output Microcells 61/73 DSM2150F5V Table 28. Flash Memory Program, WRITE and Erase Times Symbol Parameter Flash Bulk Erase1 (pre-programmed) Flash Bulk Erase (not pre-programmed) tWHQV3 tWHQV2 tWHQV1 Sector Erase (pre-programmed) Sector Erase (not pre-programmed) Byte Program Program / Erase Cycles (per Sector) tTIMEOUT tQ7VQV tTIMOUT Sector Erase Time-Out DQ7 Valid to Output (DQ7-DQ0) Valid (Data Polling) 2 Min. Typ. 3 10 1 2.2 14 Max. 30 Unit s s 30 s s 1200 s cycles 100,000 80 30 0.1 15 s ns s Toggle Flag toggles after Suspend Sector Erase Instruction Note: 1. Programmed to all zero before erase. 2. The polling status, DQ7, is valid tQ7VQV time units before the data byte, DQ0-DQ7, is valid for reading. 62/73 DSM2150F5V Figure 34. Reset (RESET) Timing VCC VCC(min) tNLNH tNLNH-A Warm Reset tNLNH-PO Power-On Reset tOPR tOPR RESET AI02866b Table 29. Reset (RESET) Timing Symbol tNLNH tNLNH-PO tNLNH-A tOPR Parameter RESET Active Low Time 1 Power On Reset Active Low Time Warm Reset Active Low time 2 RESET High to Operational Device Flash memory returns to read mode after Flash Reset Instruction If Flash Program, Erase, or Error condition was in progress Conditions Min 300 1 25 300 Max Unit ns ms us ns us tREAD_ARRAY 25 Note: 1. Reset (RESET) does not reset Flash memory Program or Erase cycles. 2. Warm reset aborts Flash memory Program or Erase cycles, and puts the device in READ Mode. 63/73 DSM2150F5V Figure 35. ISC Timing t ISCCH TCK t ISCCL t ISCPSU t ISCPH TDI/TMS t ISCPZV t ISCPCO ISC OUTPUTS/TDO t ISCPVZ ISC OUTPUTS/TDO AI02865 Table 30. ISC Timing -12 Symbol tISCCF tISCCH tISCCL tISCCFP tISCCHP tISCCLP tISCPSU tISCPH tISCPCO tISCPZV tISCPVZ Parameter Clock (TCK, PC1) Frequency (except for PLD) Clock (TCK, PC1) High Time (except for PLD) Clock (TCK, PC1) Low Time (except for PLD) Clock (TCK, PC1) Frequency (PLD only) Clock (TCK, PC1) High Time (PLD only) Clock (TCK, PC1) Low Time (PLD only) ISC Port Set Up Time ISC Port Hold Up Time ISC Port Clock to Output ISC Port High-Impedance to Valid Output ISC Port Valid Output to High-Impedance Conditions Min (Note 1) (Note 1) (Note 1) (Note 2) (Note 2) (Note 2) 240 240 12 5 32 32 32 40 40 2 Max 12 MHz ns ns MHz ns ns ns ns ns ns ns Unit Note: 1. For non-PLD Programming, Erase or in By-pass Mode. 2. For Program or Erase PLD only. 64/73 DSM2150F5V PACKAGE MECHANICAL Figure 36. 80-lead, Plastic, Quad Flatpack, Package Outline D D1 D2 A2 e Ne E2 E1 E b N 1 Nd L1 A CP c QFP-A Note: Drawing is not to scale. A1 L 65/73 DSM2150F5V Table 31. TQFP80 - 80-lead, Plastic, Quad Flatpack, Package Mechanical Data mm Symb. Typ. A A1 A2 b c D D1 D2 E E1 E2 e L L1 CP N Nd Ne 14.000 12.000 9.500 14.000 12.000 9.500 0.500 0.600 1.000 0.080 80 20 20 -- -- 0.450 -- -- 0.750 -- -- 3.5 0.220 0.050 0.950 0.0 0.170 0.090 Min. Max. 1.200 0.150 1.050 7.0 0.270 0.200 0.5512 0.4724 0.3740 0.5512 0.4724 0.3740 0.0197 0.0236 0.0394 0.0031 80 20 20 -- -- 0.0177 -- -- 0.0295 -- -- 3.5 0.0087 0.0020 0.0374 0.0 0.0067 0.0035 Typ. Min. Max. 0.0472 0.0059 0.0413 7.0 0.0106 0.0079 inches 66/73 DSM2150F5V PART NUMBERING Table 32. Ordering Information Scheme Example: Device Type DSM21=DSP System Memory for ADSP-21XXX Family DSM Series 50 = 4.25Mbit, Dual Array Flash, 40 I/O Main Flash Memory Density F5 = 4Mbit Operating Voltage (VCC) V = 3.3V 10% Access Time 12 = 120nsec Package T = 80-pin TQFP Temperature Range 6 = -40 to 85C (Industrial) DSM21 50 F5 V - 12 T 6 For a list of available options (e.g., speed, package) or for further information on any aspect of this device, please contact your nearest ST Sales Office. 67/73 DSM2150F5V APPENDIX A. TQFP80 PIN ASSIGNMENTS Table 33. Connections (Figure 3., page 7) Pin Number 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 31 32 33 34 35 36 37 38 39 40 Pin Assignments PD2 PD3 AD0 AD1 AD2 AD3 AD4 GND VCC AD5 AD6 AD7 AD8 AD9 AD10 AD11 AD12 AD13 AD14 AD15 PG0 PG1 PG2 PG3 PG4 PG5 PG6 PG7 VCC GND PF0 PF1 PF2 PF3 PF4 PF5 PF6 PF7 RESET CNTL2 Pin Number 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Pin Assignments PC0 PC1 PC2 PC3 PC4 PC5 PC6 PC7 GND GND PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 CNTL0 CNTL1 PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 VCC GND PE0 PE1 PE2 PE3 PE4 PE5 PE6 PE7 PD0 PD1 68/73 DSM2150F5V APPENDIX B. CSIOP REGISTER BIT DEFINITIONS Table 34. Data-In Registers - Ports A, B, C, D, E, G Bit 7 Port pin 7 Bit 6 Port pin 6 Bit 5 Port pin 5 Bit 4 Port pin 4 Bit 3 Port pin 3 Bit 2 Port pin 2 Bit 1 Port pin 1 Bit 0 Port pin 0 Note: Bit Definitions (Read only registers): Read Port pin status when Port is in MCU I/O Input Mode. Table 35. Data-Out Registers - Ports A, B, C, D, E, G Bit 7 Port pin 7 Bit 6 Port pin 6 Bit 5 Port pin 5 Bit 4 Port pin 4 Bit 3 Port pin 3 Bit 2 Port pin 2 Bit 1 Port pin 1 Bit 0 Port pin 0 Note: Bit Definitions: Latched data for output to Port pin when pin is configured in MCU I/O Output Mode. Table 36. Direction Registers - Ports A, B, C, D, E, G Bit 7 Port pin 7 Bit 6 Port pin 6 Bit 5 Port pin 5 Bit 4 Port pin 4 Bit 3 Port pin 3 Bit 2 Port pin 2 Bit 1 Port pin 1 Bit 0 Port pin 0 Note: Bit Definitions: Port pin 0 = Port pin is configured in Input Mode (default). Port pin 1 = Port pin is configured in Output Mode. Table 37. Drive Registers - Ports A, B, E, G Bit 7 Port pin 7 Bit 6 Port pin 6 Bit 5 Port pin 5 Bit 4 Port pin 4 Bit 3 Port pin 3 Bit 2 Port pin 2 Bit 1 Port pin 1 Bit 0 Port pin 0 Note: Bit Definitions: Port pin 0 = Port pin is configured for CMOS Output driver (default). Port pin 1 = Port pin is configured for Open Drain output driver. Table 38. Drive Registers - Port C Bit 7 Port pin 7 Bit 6 Port pin 6 Bit 5 Port pin 5 Bit 4 Port pin 4 Bit 3 Port pin 3 Bit 2 Port pin 2 Bit 1 Port pin 1 Bit 0 Port pin 0 Note: Bit Definitions: Port pin 0 = Port pin is configured for CMOS Output driver (default). Port pin 1 = Port pin is configured in Slew Rate Mode. Table 39. Enable-Out Registers - Ports A, B, C Bit 7 Port pin 7 Bit 6 Port pin 6 Bit 5 Port pin 5 Bit 4 Port pin 4 Bit 3 Port pin 3 Bit 2 Port pin 2 Bit 1 Port pin 1 Bit 0 Port pin 0 Note: Bit Definitions (Read only registers): Port pin 0 = Port pin is in tri-state driver (default). Port pin 1 = Port pin is enabled. Table 40. Input Macrocells - Ports A, B, C Bit 7 IMcell 7 Bit 6 IMcell 6 Bit 5 IMcell 5 Bit 4 IMcell 4 Bit 3 IMcell 3 Bit 2 IMcell 2 Bit 1 IMcell 1 Bit 0 IMcell 0 Note: Bit Definitions (Read only registers): Read Input Macrocell (IMC7-IMC0) status on Ports A, B and C. 69/73 DSM2150F5V Table 41. Output Macrocells A Register Bit 7 Mcella 7 Bit 6 Mcella 6 Bit 5 Mcella 5 Bit 4 Mcella 4 Bit 3 Mcella 3 Bit 2 Mcella 2 Bit 1 Mcella 1 Bit 0 Mcella 0 Note: Bit Definitions: Write Register: Load MCellA7-MCellA0 with 0 or 1. Read Register: Read MCellA7-MCellA0 output status. Table 42. Output Macrocells B Register Bit 7 Mcellb 7 Bit 6 Mcellb 6 Bit 5 Mcellb 5 Bit 4 Mcellb 4 Bit 3 Mcellb 3 Bit 2 Mcellb 2 Bit 1 Mcellb 1 Bit 0 Mcellb 0 Note: Bit Definitions: Write Register: Load MCellB7-MCellB0 with 0 or 1. Read Register: Read MCellB7-MCellB0 output status. Table 43. Mask Macrocells A Register Bit 7 Mcella 7 Bit 6 Mcella 6 Bit 5 Mcella 5 Bit 4 Mcella 4 Bit 3 Mcella 3 Bit 2 Mcella 2 Bit 1 Mcella 1 Bit 0 Mcella 0 Note: Bit Definitions: McellA_Prot 0 = Allow MCellA flip-flop to be loaded by MCU (default). McellA_Prot 1 = Prevent MCellA flip-flop from being loaded by DSP. Table 44. Mask Macrocells B Register Bit 7 Mcellb 7 Bit 6 Mcellb 6 Bit 5 Mcellb 5 Bit 4 Mcellb 4 Bit 3 Mcellb 3 Bit 2 Mcellb 2 Bit 1 Mcellb 1 Bit 0 Mcellb 0 Note: Bit Definitions: McellB_Prot 0 = Allow MCellB flip-flop to be loaded by MCU (default). McellB_Prot 1 = Prevent MCellB flip-flop from being loaded by DSP. Table 45. Flash Memory Protection Register Bit 7 Sec7_Prot Bit 6 Sec6_Prot Bit 5 Sec5_Prot Bit 4 Sec4_Prot Bit 3 Sec3_Prot Bit 2 Sec2_Prot Bit 1 Sec1_Prot Bit 0 Sec0_Prot Note: Bit Definitions (Read only register): Sec_Prot 1 = Primary Flash memory Sector is write protected. Sec_Prot 0 = Primary Flash memory Sector is not write protected. Table 46. Flash Boot Protection Register Bit 7 Security_Bit Bit 6 not used Bit 5 not used Bit 4 not used Bit 3 Sec3_Prot Bit 2 Sec2_Prot Bit 1 Sec1_Prot Bit 0 Sec0_Prot Note: Bit Definitions: Sec_Prot 1 = Secondary Flash memory Sector is write protected. Sec_Prot 0 = Secondary Flash memory Sector is not write protected. Security_Bit 0 = Security Bit in device has not been set. Security_Bit 1 = Security Bit in device has been set. Table 47. JTAG Enable Register Bit 7 not used Bit 6 not used Bit 5 not used Bit 4 not used Bit 3 not used Bit 2 not used Bit 1 not used Bit 0 JTAG Enable Note: Bit Definitions: JTAGEnable 1 = JTAG Port is enabled. JTAGEnable 0 = JTAG Port is disabled. 70/73 DSM2150F5V Table 48. Page Register Bit 7 PGR 7 Bit 6 PGR 6 Bit 5 PGR 5 Bit 4 PGR 4 Bit 3 PGR 3 Bit 2 PGR 2 Bit 1 PGR 1 Bit 0 PGR 0 Note: Bit Definitions: Configure Page input to PLD. Default is PGR7-PGR0=0. Table 49. PMMR0 Register Bit 7 not used (set to 0) Bit 6 not used (set to 0) Bit 5 PLD MCells CLK Bit 4 PLD Array CLK Bit 3 PLD Turbo Bit 2 not used (set to 0) Bit 1 not used (set to 0) Bit 0 not used (set to 0) Note: The bits of this register are cleared to zero following Power-up. Subsequent Reset (RESET) pulses do not clear the registers. Note: Bit Definitions: PLD Turbo 0 = PLD Turbo is on. 1 = PLD Turbo is off, saving power. PLD Array CLK 0 = CLKIN to the PLD AND array is connected. Every CLKIN change powers up the PLD when Turbo bit is off. 1 = CLKIN to the PLD AND array is disconnected, saving power. PLD MCells CLK 0 = CLKIN to the PLD Macrocells is connected. 1 = CLKIN to the PLD Macrocells is disconnected, saving power. Table 50. PMMR2 Register Bit 7 not used (set to 0) Bit 6 PLD Array WRH Bit 5 not used (set to 0) Bit 4 PLD Array CNTL2 Bit 3 PLD Array CNTL1 Bit 2 PLD Array CNTL0 Bit 1 not used (set to 0) Bit 0 PLD Array Addr Note: For Bit 4, Bit 3, Bit 2: See Table 49 for the signals that are blocked on pins CNTL0-CNTL2. Note: Bit Definitions: PLD Array Addr 0 = Address A7-A0 are connected to the PLD array. 1 = Address A7-A0 are blocked from the PLD array, saving power. PLD Array CNTL2 0 = CNTL2 input to the PLD AND array is connected. Every CLKIN change powers up the PLD when Turbo bit is off. 1 = CNTL2 input to the PLD AND array is disconnected, saving power. PLD Array CNTL1 0 = CNTL1 input to the PLD AND array is connected. Every CLKIN change powers up the PLD when Turbo bit is off. 1 = CNTL1 input to the PLD AND array is disconnected, saving power. PLD Array CNTL0 0 = CNTL0 input to the PLD AND array is connected. Every CLKIN change powers up the PLD when Turbo bit is off. 1 = CNTL0 input to the PLD AND array is disconnected, saving power. PLD Array WRH 0 = WRH input to the PLD AND array is connected. 1 = WRH input to the PLD AND array is disconnected, saving power. Table 51. Memory_ID0 Register Bit 7 not used (set to 0) Bit 6 not used (set to 0) Bit 5 not used (set to 0) Bit 4 not used (set to 0) Bit 3 F_size 3 Bit 2 F_size 2 Bit 1 F_size 1 Bit 0 F_size 0 Note: Bit Definitions: F_size[3:0] 5h = Primary Flash memory size is 4Mbit 6h = Primary Flash memory size is 8Mbit Table 52. Memory_ID1 Register Bit 7 not used (set to 0) Bit 6 not used (set to 0) Bit 5 not used (set to 0) Bit 4 not used (set to 0) Bit 3 B_size 3 Bit 2 B_size 2 Bit 1 B_size 1 Bit 0 B_size 0 Note: Bit Definitions: B_size[3:0] 2h = Secondary NVM size is 256Kbit 3h = Secondary NVM size is 512Kbit 71/73 DSM2150F5V REVISION HISTORY Table 53. Document Revision History Date 14-Feb-2002 18-Sep-2002 11-Mar-2003 09-Aug-04 Rev. 1.0 1.1 2.0 3.0 Document written JTAG Debug bus separated from JTAG ISP bus Document put in new template Reformatted; correct block diagram, pin connections (Figure 4; Table 33) Description of Revision 72/73 DSM2150F5V Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners (c) 2004 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 73/73 |
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