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8-Bit SAA-XC886CLM
8-Bit Single Chip Microcontroller
Data Sheet
V1.1 2010-08
Micr o co n t ro ll e rs
Edition 2010-08 Published by Infineon Technologies AG 81726 Munich, Germany
(c) 2010 Infineon Technologies AG All Rights Reserved.
Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices, please contact the nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.
8-Bit SAA-XC886CLM
8-Bit Single Chip Microcontroller
Data Sheet
V1.1 2010-08
Micr o co n t ro ll e rs
SAA-XC886CLM
SAA-XC886 Data Sheet Revision History: V1.1 2010-08 Previous Versions: V1.0 2009-09 Page 126 126 126 Subjects (major changes since last revision) New parameter on weighted average temperature is added. Maximum value of parameter VCDM is increased from 500 V to 750 V. Parameter VCDM is no longer differentiated between VDDC and all other pins.
We Listen to Your Comments Any information within this document that you feel is wrong, unclear or missing at all? Your feedback will help us to continuously improve the quality of this document. Please send your proposal (including a reference to this document) to: mcdocu.comments@infineon.com
Data Sheet
V1.1, 2010-08
SAA-XC886CLM
Table of Contents
Table of Contents
1 2 2.1 2.2 2.3 2.4 3 3.1 3.2 3.2.1 3.2.1.1 3.2.2 3.2.2.1 3.2.2.2 3.2.3 3.2.3.1 3.2.4 3.2.4.1 3.2.4.2 3.2.4.3 3.2.4.4 3.2.4.5 3.2.4.6 3.2.4.7 3.2.4.8 3.2.4.9 3.2.4.10 3.2.4.11 3.2.4.12 3.2.4.13 3.2.4.14 3.3 3.3.1 3.3.2 3.3.3 3.4 3.4.1 3.4.2 3.4.3 3.5 Summary of Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 General Device Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Processor Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Memory Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Memory Protection Strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flash Memory Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Special Function Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Address Extension by Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Address Extension by Paging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bit Protection Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Password Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SAA-XC886 Register Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CPU Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MDU Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CORDIC Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . WDT Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Port Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ADC Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Timer 2 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Timer 21 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CCU6 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UART1 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SSC Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MultiCAN Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OCDS Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flash Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flash Bank Sectorization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parallel Read Access of P-Flash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flash Programming Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interrupt System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interrupt Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interrupt Source and Vector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interrupt Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parallel Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I-1
4 4 5 6 7 16 16 17 18 18 20 20 22 26 27 28 28 29 30 31 33 34 36 40 40 41 45 46 46 47 49 50 51 52 53 53 59 61 62
Data Sheet
V1.1, 2010-08
SAA-XC886CLM
Table of Contents 3.6 3.7 3.7.1 3.7.2 3.8 3.8.1 3.8.2 3.9 3.10 3.11 3.12 3.13 3.13.1 3.13.2 3.14 3.15 3.15.1 3.16 3.17 3.18 3.19 3.20 3.21 3.21.1 3.21.2 3.22 3.22.1 3.23 4 4.1 4.1.1 4.1.2 4.1.3 4.2 4.2.1 4.2.2 4.2.3 4.2.3.1 4.2.4 4.3 4.3.1 4.3.2 Power Supply System with Embedded Voltage Regulator . . . . . . . . . . . . 65 Reset Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Module Reset Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Booting Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Clock Generation Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Recommended External Oscillator Circuits . . . . . . . . . . . . . . . . . . . . . . 72 Clock Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Power Saving Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Watchdog Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Multiplication/Division Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 CORDIC Coprocessor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 UART and UART1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Baud-Rate Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Baud Rate Generation using Timer 1 . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Normal Divider Mode (8-bit Auto-reload Timer) . . . . . . . . . . . . . . . . . . . . . 85 LIN Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 LIN Header Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 High-Speed Synchronous Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . 88 Timer 0 and Timer 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Timer 2 and Timer 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Capture/Compare Unit 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Controller Area Network (MultiCAN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 Analog-to-Digital Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 ADC Clocking Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 ADC Conversion Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 On-Chip Debug Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 JTAG ID Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Chip Identification Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Electrical Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parameter Interpretation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Absolute Maximum Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input/Output Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Supply Threshold Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . ADC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ADC Conversion Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AC Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Testing Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output Rise/Fall Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I-2
102 102 102 103 104 105 105 108 109 112 113 115 115 116
Data Sheet
V1.1, 2010-08
SAA-XC886CLM
Table of Contents 4.3.3 4.3.4 4.3.5 4.3.6 4.3.7 5 5.1 5.2 5.3 Power-on Reset and PLL Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . On-Chip Oscillator Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . External Clock Drive XTAL1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . JTAG Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SSC Master Mode Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package and Quality Declaration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Quality Declaration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 119 120 121 123 124 124 125 126
Data Sheet
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V1.1, 2010-08
8-Bit Single Chip Microcontroller
SAA-XC886CLM
1
Summary of Features
The SAA-XC886 has the following features: * High-performance XC800 Core - compatible with standard 8051 processor - two clocks per machine cycle architecture (for memory access without wait state) - two data pointers * On-chip memory - 12 Kbytes of Boot ROM - 256 bytes of RAM - 1.5 Kbytes of XRAM - 24/32 Kbytes of Flash (includes memory protection strategy) * I/O port supply at 5.0 V and core logic supply at 2.5 V (generated by embedded voltage regulator) (more features on next page)
Flash 24K/32K x 8
On-Chip Debug Support
UART
SSC
Port 0
7-bit Digital I/O
Boot ROM 12K x 8 XC800 Core XRAM 1.5K x 8
Capture/Compare Unit 16-bit
Port 1
8-bit Digital I/O
Compare Unit 16-bit
Port 2
8-bit Digital/ Analog Input
RAM 256 x 8
Timer 0 16-bit
Timer 1 16-bit
Timer 2 16-bit
ADC 10-bit 8-channel
Port 3
8-bit Digital I/O
MDU
CORDIC
MultiCAN
Timer 21 16-bit
UART1
Watchdog Timer
Port 4
3-bit Digital I/O
Figure 1
SAA-XC886 Functional Units
Data Sheet
1
V1.1, 2010-08
SAA-XC886CLM
Summary of Features Features: (continued) * * * * Power-on reset generation Brownout detection for core logic supply On-chip OSC and PLL for clock generation - PLL loss-of-lock detection Power saving modes - slow-down mode - idle mode - power-down mode with wake-up capability via RXD or EXINT0 - clock gating control to each peripheral Programmable 16-bit Watchdog Timer (WDT) Six ports - Up to 48 pins as digital I/O - 8 pins as digital/analog input 8-channel, 10-bit ADC Four 16-bit timers - Timer 0 and Timer 1 (T0 and T1) - Timer 2 and Timer 21 (T2 and T21) Multiplication/Division Unit for arithmetic operations (MDU) Software libraries to support floating point and MDU calculations CORDIC Coprocessor for computation of trigonometric, hyperbolic and linear functions MultiCAN with 2 nodes, 32 message objects Capture/compare unit for PWM signal generation (CCU6) Two full-duplex serial interfaces (UART and UART1) Synchronous serial channel (SSC) On-chip debug support - 1 Kbyte of monitor ROM (part of the 12-Kbyte Boot ROM) - 64 bytes of monitor RAM Package: - PG-TQFP-48 Temperature range TA: - SAA (-40 to 140 C)
* *
* *
* * * * * * * *
* *
Data Sheet
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V1.1, 2010-08
SAA-XC886CLM
Summary of Features SAA-XC886 Variant Devices The SAA-XC886 product family features devices with different configurations and program memory sizes, to offer cost-effective solutions for different application requirements. The list of SAA-XC886 device configurations are summarized in Table 1. Table 1 Device Profile Program Memory (Kbytes) 32 32 32 32 32 24 24 24 24 24 CAN LIN BSL MDU Module Support Module No Yes Yes No Yes No Yes Yes No Yes No No No Yes Yes No No No Yes Yes No No Yes Yes Yes No No Yes Yes Yes
Device Sales Type Type Flash SAA-XC886-8FFA 5V SAA-XC886C-8FFA 5V SAA-XC886CM-8FFA 5V SAA-XC886LM-8FFA 5V SAA-XC886CLM-8FFA 5V SAA-XC886-6FFA 5V SAA-XC886C-6FFA 5V SAA-XC886CM-6FFA 5V SAA-XC886LM-6FFA 5V SAA-XC886CLM-6FFA 5V
Note: For variants with LIN BSL support, only LIN BSL is available regardless of the availability of the CAN module. As this document refers to all the derivatives, some description may not apply to a specific product. For simplicity, all versions are referred to by the term SAA-XC886 throughout this document. Ordering Information The ordering code for Infineon Technologies microcontrollers provides an exact reference to the required product. This ordering code identifies: * * The derivative itself, i.e. its function set, the temperature range, and the supply voltage The package and the type of delivery
For the available ordering codes for the SAA-XC886, please refer to your responsible sales representative or your local distributor.
Data Sheet
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SAA-XC886CLM
General Device Information
2
General Device Information
Chapter 2 contains the block diagram, pin configurations, definitions and functions of the SAA-XC886.
2.1
Block Diagram
The block diagram of the SAA-XC886 is shown in Figure 2.
SAA-XC886 Internal Bus P ort 0 12-Kbyte Boot ROM 1) XC800 Core 256-byte RAM + 64-byte monitor RAM P0.0 - P0.5, P0.7
T0 & T1
UART
P ort 1
TMS MBC RESET VDDP VSSP VDDC VSSC
P1.0 - P1.7
CORDIC 1.5-Kbyte XRAM MDU 24/32-Kbyte Flash Clock Generator 9.6 MHz On-chip OSC WDT OCDS
UART1 P ort 2 SSC Timer 2 ADC Timer 21 P ort 3 CCU6 P3.0 - P3.7 P2.0 - P2.7
VAREF VAGND
XTAL1 XTAL2
PLL MultiCAN P ort 4 P4.0 - P4.1, P4.3
1) Includes 1-Kbyte monitor ROM
Figure 2
SAA-XC886 Block Diagram
Data Sheet
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SAA-XC886CLM
General Device Information
2.2
Logic Symbol
The logic symbols of the SAA-XC886 are shown in Figure 3.
VDDP VSSP
VAREF Port 0 7-Bit VAGND Port 1 8-Bit RESET MBC TMS XTAL1 XTAL2 Port 4 3-Bit XC886
Port 2 8-Bit
Port 3 8-Bit
VDDC
VSSC
Figure 3
SAA-XC886 Logic Symbol
Data Sheet
5
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General Device Information
2.3
Pin Configuration
The pin configuration of the XC886, which is based on the PG-TQFP-48 package, is shown in Figure 4.
P3.1
P3.0
P3.7
P3.6
P4.3
P1.5
P1.4
P1.3
P1.2
P1.1
P1.0
36 35 34 33 32 31 30 29 28 27 26 25 P3.2 P3.3 P3.4 P3.5 RESET V SSP V DDP MBC P4.0 P4.1 P0.7 P0.3 37 38 39 40 41 42 43 44 45 46 47 48 1 2 3 4 5 6 7 8 9 10 11 12 XC886 24 23 22 21 20 19 18 17 16 15 14 13 V AREF V AGND P2.6 P2.5 P2.4 P2.3 V SSP V DDP P2.2
P2.1
P2.7
P2.0
P0.1
P0.4
P0.5
XTAL2
XTAL1
VSSC
VDDC
VDDP
P1.6
P1.7
TMS
P0.0
P0.2
Figure 4
XC886 Pin Configuration, PG-TQFP-48 Package (top view)
Data Sheet
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SAA-XC886CLM
General Device Information
2.4
Pin Definitions and Functions
The functions and default states of the SAA-XC886 external pins are provided in Table 2. Table 2 Pin Definitions and Functions Type Reset Function State I/O Port 0 Port 0 is an 8-bit bidirectional general purpose I/O port. It can be used as alternate functions for the JTAG, CCU6, UART, UART1, Timer 2, Timer 21, MultiCAN and SSC. Hi-Z TCK_0 T12HR_1 JTAG Clock Input CCU6 Timer 12 Hardware Run Input CC61_1 Input/Output of Capture/Compare channel 1 CLKOUT_0 Clock Output RXDO_1 UART Transmit Data Output JTAG Serial Data Input CCU6 Timer 13 Hardware Run Input UART Receive Data Input MultiCAN Node 1 Receiver Input Output of Capture/Compare channel 1 Timer 2 External Flag Output CCU6 Trap Input JTAG Serial Data Output UART Transmit Data Output/Clock Output MultiCAN Node 1 Transmitter Output SSC Clock Input/Output Output of Capture/Compare channel 3 UART1 Transmit Data Output
Symbol Pin Number P0
P0.0
11
P0.1
13
Hi-Z
TDI_0 T13HR_1 RXD_1 RXDC1_0 COUT61_1 EXF2_1
P0.2
12
PU
CTRAP_2 TDO_0 TXD_1 TXDC1_0
P0.3
48
Hi-Z
SCK_1 COUT63_1 RXDO1_0
Data Sheet
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SAA-XC886CLM
General Device Information Table 2 Pin Definitions and Functions (cont'd) Type Reset Function State Hi-Z MTSR_1 CC62_1 TXD1_0 P0.5 2 Hi-Z MRST_1 EXINT0_0 T2EX1_1 RXD1_0 COUT62_1 P0.7 47 PU SSC Master Transmit Output/ Slave Receive Input Input/Output of Capture/Compare channel 2 UART1 Transmit Data Output/Clock Output SSC Master Receive Input/Slave Transmit Output External Interrupt Input 0 Timer 21 External Trigger Input UART1 Receive Data Input Output of Capture/Compare channel 2
Symbol Pin Number P0.4 1
CLKOUT_1 Clock Output
Data Sheet
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SAA-XC886CLM
General Device Information Table 2 Pin Definitions and Functions (cont'd) Type Reset Function State I/O Port 1 Port 1 is an 8-bit bidirectional general purpose I/O port. It can be used as alternate functions for the JTAG, CCU6, UART, Timer 0, Timer 1, Timer 2, Timer 21, MultiCAN and SSC. PU RXD_0 T2EX RXDC0_0 EXINT3 T0_1 TDO_1 TXD_0 TXDC0_0 P1.2 P1.3 28 29 PU PU SCK_0 MTSR_0 TXDC1_3 P1.4 30 PU MRST_0 EXINT0_1 RXDC1_3 P1.5 31 PU CCPOS0_1 EXINT5 T1_1 EXF2_0 RXDO_0 UART Receive Data Input Timer 2 External Trigger Input MultiCAN Node 0 Receiver Input External Interrupt Input 3 Timer 0 Input JTAG Serial Data Output UART Transmit Data Output/Clock Output MultiCAN Node 0 Transmitter Output SSC Clock Input/Output SSC Master Transmit Output/Slave Receive Input MultiCAN Node 1 Transmitter Output SSC Master Receive Input/ Slave Transmit Output External Interrupt Input 0 MultiCAN Node 1 Receiver Input CCU6 Hall Input 0 External Interrupt Input 5 Timer 1 Input Timer 2 External Flag Output UART Transmit Data Output
Symbol Pin Number P1
P1.0
26
P1.1
27
PU
Data Sheet
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SAA-XC886CLM
General Device Information Table 2 Pin Definitions and Functions (cont'd) Type Reset Function State PU CCPOS1_1 CCU6 Hall Input 1 T12HR_0 CCU6 Timer 12 Hardware Run Input EXINT6_0 External Interrupt Input 6 RXDC0_2 MultiCAN Node 0 Receiver Input T21_1 Timer 21 Input CCPOS2_1 CCU6 Hall Input 2 T13HR_0 CCU6 Timer 13 Hardware Run Input T2_1 Timer 2 Input TXDC0_2 MultiCAN Node 0 Transmitter Output P1.5 and P1.6 can be used as a software chip select output for the SSC.
Symbol Pin Number P1.6 8
P1.7
9
PU
Data Sheet
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SAA-XC886CLM
General Device Information Table 2 Pin Definitions and Functions (cont'd) Type Reset Function State I Port 2 Port 2 is an 8-bit general purpose input-only port. It can be used as alternate functions for the digital inputs of the JTAG and CCU6. It is also used as the analog inputs for the ADC. Hi-Z CCPOS0_0 CCU6 Hall Input 0 EXINT1_0 External Interrupt Input 1 T12HR_2 CCU6 Timer 12 Hardware Run Input TCK_1 JTAG Clock Input CC61_3 Input of Capture/Compare channel 1 AN0 Analog Input 0 CCPOS1_0 CCU6 Hall Input 1 EXINT2_0 External Interrupt Input 2 T13HR_2 CCU6 Timer 13 Hardware Run Input TDI_1 JTAG Serial Data Input CC62_3 Input of Capture/Compare channel 2 AN1 Analog Input 1 CCPOS2_0 CCU6 Hall Input 2 CCU6 Trap Input CTRAP_1 CC60_3 Input of Capture/Compare channel 0 AN2 Analog Input 2 AN3 AN4 AN5 AN6 AN7 Analog Input 3 Analog Input 4 Analog Input 5 Analog Input 6 Analog Input 7
Symbol Pin Number P2
P2.0
14
P2.1
15
Hi-Z
P2.2
16
Hi-Z
P2.3 P2.4 P2.5 P2.6 P2.7
19 20 21 22 25
Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z
Data Sheet
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SAA-XC886CLM
General Device Information Table 2 Pin Definitions and Functions (cont'd) Type Reset Function State I/O Port 3 Port 3 is an 8-bit bidirectional general purpose I/O port. It can be used as alternate functions for CCU6, UART1, Timer 21 and MultiCAN. Hi-Z CCPOS1_2 CCU6 Hall Input 1 CC60_0 Input/Output of Capture/Compare channel 0 RXDO1_1 UART1 Transmit Data Output CCPOS0_2 CCU6 Hall Input 0 CC61_2 Input/Output of Capture/Compare channel 1 COUT60_0 Output of Capture/Compare channel 0 TXD1_1 UART1 Transmit Data Output/Clock Output CCPOS2_2 RXDC1_1 RXD1_1 CC61_0 COUT61_0 TXDC1_1 P3.4 39 Hi-Z CC62_0 RXDC0_1 T2EX1_0 P3.5 40 Hi-Z COUT62_0 EXF21_0 TXDC0_1 P3.6 33 PD CTRAP_0 CCU6 Hall Input 2 MultiCAN Node 1 Receiver Input UART1 Receive Data Input Input/Output of Capture/Compare channel 1 Output of Capture/Compare channel 1 MultiCAN Node 1 Transmitter Output Input/Output of Capture/Compare channel 2 MultiCAN Node 0 Receiver Input Timer 21 External Trigger Input Output of Capture/Compare channel 2 Timer 21 External Flag Output MultiCAN Node 0 Transmitter Output CCU6 Trap Input
Symbol Pin Number P3
P3.0
35
P3.1
36
Hi-Z
P3.2
37
Hi-Z
P3.3
38
Hi-Z
Data Sheet
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SAA-XC886CLM
General Device Information Table 2 Pin Definitions and Functions (cont'd) Type Reset Function State Hi-Z EXINT4 COUT63_0 External Interrupt Input 4 Output of Capture/Compare channel 3
Symbol Pin Number P3.7 34
Data Sheet
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SAA-XC886CLM
General Device Information Table 2 Pin Definitions and Functions (cont'd) Type Reset Function State I/O Port 4 Port 4 is an 8-bit bidirectional general purpose I/O port. It can be used as alternate functions for CCU6, Timer 0, Timer 1, Timer 21 and MultiCAN. Hi-Z RXDC0_3 CC60_1 TXDC0_3 COUT60_1 P4.3 32 Hi-Z EXF21_1 COUT63_2 MultiCAN Node 0 Receiver Input Output of Capture/Compare channel 0 MultiCAN Node 0 Transmitter Output Output of Capture/Compare channel 0 Timer 21 External Flag Output Output of Capture/Compare channel 3
Symbol Pin Number P4
P4.0
45
P4.1
46
Hi-Z
Data Sheet
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SAA-XC886CLM
General Device Information Table 2 Pin Definitions and Functions (cont'd) Type Reset Function State - - I/O Port Supply (5.0 V) Also used by EVR and analog modules. All pins must be connected. I/O Port Ground All pins must be connected. Core Supply Monitor (2.5 V) Core Supply Ground ADC Reference Voltage ADC Reference Ground External Oscillator Input (backup for on-chip OSC, normally NC) External Oscillator Output (backup for on-chip OSC, normally NC) Test Mode Select Reset Input Monitor & BootStrap Loader Control
Symbol Pin Number
VDDP
7, 17, 43
VSSP VDDC VSSC VAREF VAGND
XTAL1 XTAL2 TMS MBC1)
18, 42 6 5 24 23 4 3 10 44
- - - - - I O I I I
- - - - - Hi-Z Hi-Z PD PU PU
RESET 41
1) An external pull-up device in the range of 4.7 k to 100 k. is required to enter user mode. Alternatively MBC can be tied to high if alternate functions (for debugging) of the pin are not utilized.
Data Sheet
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Functional Description
3
Functional Description
Chapter 3 provides an overview of the SAA-XC886 functional description.
3.1
Processor Architecture
The SAA-XC886 is based on a high-performance 8-bit Central Processing Unit (CPU) that is compatible with the standard 8051 processor. While the standard 8051 processor is designed around a 12-clock machine cycle, the SAA-XC886 CPU uses a 2-clock machine cycle. This allows fast access to ROM or RAM memories without wait state. Access to the Flash memory, however, requires an additional wait state (one machine cycle). The instruction set consists of 45% one-byte, 41% two-byte and 14% three-byte instructions. The SAA-XC886 CPU provides a range of debugging features, including basic stop/start, single-step execution, breakpoint support and read/write access to the data memory, program memory and Special Function Registers (SFRs). Figure 5 shows the CPU functional blocks.
Internal Data Memory Core SFRs External Data Memory 16-bit Registers & Memory Interface Program Memory Opcode & Immediate Registers Multiplier / Divider ALU Register Interface External SFRs
Opcode Decoder
Timer 0 / Timer 1
fCCLK Memory Wait Reset
State Machine & Power Saving
UART
Legacy External Interrupts (IEN0, IEN1) External Interrupts Non-Maskable Interrupt
Interrupt Controller
Figure 5
Data Sheet
CPU Block Diagram
16 V1.1, 2010-08
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Functional Description
3.2
* * * * *
Memory Organization
The SAA-XC886 CPU operates in the following five address spaces: 12 Kbytes of Boot ROM program memory 256 bytes of internal RAM data memory 1.5 Kbytes of XRAM memory (XRAM can be read/written as program memory or external data memory) A 128-byte Special Function Register area 24/32 Kbytes of Flash program memory
Figure 6 illustrates the memory address spaces of the 32-Kbyte Flash devices. For the 24-Kbyte Flash devices, the shaded banks are not available.
FFFFH F600H FFFF H
1)
F600H
In 24-Kbyte Flash devices, the upper 2Kbyte of Banks 4 and 5 are not available.
XRAM 1.5 Kbytes
F000H
XRAM 1.5 Kbytes
F000H
Boot ROM 12 Kbytes
C000H
D-Flash Bank 1 4 Kbytes
B000H
D-Flash Bank 0 4 Kbytes
A000H
8000H
D-Flash Bank 0 4 Kbytes
7000H
D-Flash Bank 1 4 Kbytes
6000H
P-Flash Banks 4 and 5 2 x 4 Kbytes 1)
5000H 4000H
Indirect Address
Direct Address
FF H
P-Flash Banks 2 and 3 2 x 4 Kbytes
2000H
Internal RAM
Special Function Registers
80H
P-Flash Banks 0 and 1 2 x 4 Kbytes
0000H 0000H
7FH
Internal RAM
00H
Program Space
External Data Space
Internal Data Space
Figure 6
Memory Map of SAA-XC886 Flash Device
Data Sheet
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SAA-XC886CLM
Functional Description
3.2.1
*
Memory Protection Strategy
The SAA-XC886 memory protection strategy includes: Read-out protection: The user is able to protect the contents in the Flash memory from being read - Flash protection is enabled by programming a valid password (8-bit non-zero value) via BSL mode 6. Flash program and erase protection.
*
3.2.1.1
Flash Memory Protection
As long as a valid password is available, all external access to the device, including the Flash, will be blocked. For additional security, the Flash hardware protection can be enabled to implement a second layer of read-out protection, as well as to enable program and erase protection. Flash hardware protection is available only for Flash devices and comes in two modes: * * Mode 0: Only the P-Flash is protected; the D-Flash is unprotected Mode 1: Both the P-Flash and D-Flash are protected
The selection of each protection mode and the restrictions imposed are summarized in Table 3. Table 3 Flash Protection Modes With hardware protection 0 1
Flash Protection Without hardware protection Hardware Protection Mode Activation Selection
Program a valid password via BSL mode 6 Bit 4 of password = 0 Bit 4 of password = 1 Bit 4 of password = 1 MSB of password = 0 MSB of password = 1 Read instructions in the P-Flash or DFlash Not possible Not possible
P-Flash Read instructions in Read instructions in contents can be any program memory the P-Flash read by External access to P-Flash Not possible Not possible Not possible
P-Flash program Possible and erase
Read instructions in Read instructions in Read instructions in D-Flash contents can be any program memory any program memory the P-Flash or Dread by Flash
Data Sheet
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SAA-XC886CLM
Functional Description Table 3 Flash Protection Modes (cont'd) With hardware protection Not possible Possible Not possible Not possible
Flash Protection Without hardware protection External access to D-Flash D-Flash program D-Flash erase Not possible Possible Possible
Possible, on Not possible condition that bit DFLASHEN in register MISC_CON is set to 1 prior to each erase operation
BSL mode 6, which is used for enabling Flash protection, can also be used for disabling Flash protection. Here, the programmed password must be provided by the user. A password match triggers an automatic erase of the protected P-Flash and D-Flash contents, including the programmed password. The Flash protection is then disabled upon the next reset. Although no protection scheme can be considered infallible, the SAA-XC886 memory protection strategy provides a very high level of protection for a general purpose microcontroller.
Data Sheet
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SAA-XC886CLM
Functional Description
3.2.2
Special Function Register
The Special Function Registers (SFRs) occupy direct internal data memory space in the range 80H to FFH. All registers, except the program counter, reside in the SFR area. The SFRs include pointers and registers that provide an interface between the CPU and the on-chip peripherals. As the 128-SFR range is less than the total number of registers required, address extension mechanisms are required to increase the number of addressable SFRs. The address extension mechanisms include: * * Mapping Paging
3.2.2.1
Address Extension by Mapping
Address extension is performed at the system level by mapping. The SFR area is extended into two portions: the standard (non-mapped) SFR area and the mapped SFR area. Each portion supports the same address range 80H to FFH, bringing the number of addressable SFRs to 256. The extended address range is not directly controlled by the CPU instruction itself, but is derived from bit RMAP in the system control register SYSCON0 at address 8FH. To access SFRs in the mapped area, bit RMAP in SFR SYSCON0 must be set. Alternatively, the SFRs in the standard area can be accessed by clearing bit RMAP. The SFR area can be selected as shown in Figure 7. As long as bit RMAP is set, the mapped SFR area can be accessed. This bit is not cleared automatically by hardware. Thus, before standard/mapped registers are accessed, bit RMAP must be cleared/set, respectively, by software.
Data Sheet
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SAA-XC886CLM
Functional Description
Standard Area (RM AP = 0) FF H Module 1 SFRs
SYSCON0.RMAP
rw
Module 2 SFRs
Module n SFRs
......
SFR Data (to/from CPU)
80 H Mapped Area (RMAP = 1) FF H Module (n+1) SFRs
Module (n+2) SFRs
Module m SFRs
......
80 H Direct Internal Data Memory Address
Figure 7
Address Extension by Mapping
Data Sheet
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SAA-XC886CLM
Functional Description
SYSCON0 System Control Register 0
7 6 0 r 5 4 IMODE rw 3 0 r 2 1 r
Reset Value: 04H
1 0 r 0 RMAP rw
Field RMAP
Bits 0
Type Description rw Interrupt Node XINTR0 Enable 0 The access to the standard SFR area is enabled 1 The access to the mapped SFR area is enabled Reserved Returns 1 if read; should be written with 1. Reserved Returns 0 if read; should be written with 0.
1 0
2 [7:5], 3,1
r r
Note: The RMAP bit should be cleared/set by ANL or ORL instructions.
3.2.2.2
Address Extension by Paging
Address extension is further performed at the module level by paging. With the address extension by mapping, the SAA-XC886 has a 256-SFR address range. However, this is still less than the total number of SFRs needed by the on-chip peripherals. To meet this requirement, some peripherals have a built-in local address extension mechanism for increasing the number of addressable SFRs. The extended address range is not directly controlled by the CPU instruction itself, but is derived from bit field PAGE in the module page register MOD_PAGE. Hence, the bit field PAGE must be programmed before accessing the SFR of the target module. Each module may contain a different number of pages and a different number of SFRs per page, depending on the specific requirement. Besides setting the correct RMAP bit value to select the SFR area, the user must also ensure that a valid PAGE is selected to target the desired SFR. A page inside the extended address range can be selected as shown in Figure 8.
Data Sheet
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SAA-XC886CLM
Functional Description
SFR Address (from CPU) MOD_PAGE.PAGE
rw
PAGE 0 SFR0 SFR1
......
SFRx
PAGE 1 SFR0 SFR Data (to/from CPU) SFR1
......
SFRy
......
PAGE q SFR0 SFR1
......
SFRz
Module
Figure 8
Address Extension by Paging
In order to access a register located in a page different from the actual one, the current page must be exited. This is done by reprogramming the bit field PAGE in the page register. Only then can the desired access be performed. If an interrupt routine is initiated between the page register access and the module register access, and the interrupt needs to access a register located in another page, the current page setting can be saved, the new one programmed and the old page setting restored. This is possible with the storage fields STx (x = 0 - 3) for the save and restore action of the current page setting. By indicating which storage bit field should be used in parallel with the new page value, a single write operation can: * Save the contents of PAGE in STx before overwriting with the new value (this is done in the beginning of the interrupt routine to save the current page setting and program the new page number); or
Data Sheet
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SAA-XC886CLM
Functional Description * Overwrite the contents of PAGE with the contents of STx, ignoring the value written to the bit positions of PAGE (this is done at the end of the interrupt routine to restore the previous page setting before the interrupt occurred)
ST3 ST2 ST1 ST0 STNR value update from CPU PAGE
Figure 9
Storage Elements for Paging
With this mechanism, a certain number of interrupt routines (or other routines) can perform page changes without reading and storing the previously used page information. The use of only write operations makes the system simpler and faster. Consequently, this mechanism significantly improves the performance of short interrupt routines. The SAA-XC886 supports local address extension for: * * * * Parallel Ports Analog-to-Digital Converter (ADC) Capture/Compare Unit 6 (CCU6) System Control Registers
Data Sheet
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SAA-XC886CLM
Functional Description
The page register has the following definition: MOD_PAGE Page Register for module MOD
7 OP w 6 5 STNR w 4 3 0 r 2
Reset Value: 00H
1 PAGE rw 0
Field PAGE
Bits [2:0]
Type Description rw Page Bits When written, the value indicates the new page. When read, the value indicates the currently active page. Storage Number This number indicates which storage bit field is the target of the operation defined by bit field OP. If OP = 10B, the contents of PAGE are saved in STx before being overwritten with the new value. If OP = 11B, the contents of PAGE are overwritten by the contents of STx. The value written to the bit positions of PAGE is ignored. 00 01 10 11 ST0 is selected. ST1 is selected. ST2 is selected. ST3 is selected.
STNR
[5:4]
w
Data Sheet
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SAA-XC886CLM
Functional Description Field OP Bits [7:6] Type Description w Operation 0X Manual page mode. The value of STNR is ignored and PAGE is directly written. 10 New page programming with automatic page saving. The value written to the bit positions of PAGE is stored. In parallel, the previous contents of PAGE are saved in the storage bit field STx indicated by STNR. 11 Automatic restore page action. The value written to the bit positions PAGE is ignored and instead, PAGE is overwritten by the contents of the storage bit field STx indicated by STNR. Reserved Returns 0 if read; should be written with 0.
0
3
r
3.2.3
Bit Protection Scheme
The bit protection scheme prevents direct software writing of selected bits (i.e., protected bits) using the PASSWD register. When the bit field MODE is 11B, writing 10011B to the bit field PASS opens access to writing of all protected bits, and writing 10101B to the bit field PASS closes access to writing of all protected bits. In both cases, the value of the bit field MODE is not changed even if PASSWD register is written with 98H or A8H. It can only be changed when bit field PASS is written with 11000B, for example, writing D0H to PASSWD register disables the bit protection scheme. Note that access is opened for maximum 32 CCLKs if the "close access" password is not written. If "open access" password is written again before the end of 32 CCLK cycles, there will be a recount of 32 CCLK cycles. The protected bits include the N- and KDivider bits, NDIV and KDIV; the Watchdog Timer enable bit, WDTEN; and the powerdown and slow-down enable bits, PD and SD.
Data Sheet
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SAA-XC886CLM
Functional Description
3.2.3.1
Password Register
PASSWD Password Register
7 6 5 PASS wh 4 3 2 PROTECT _S rh
Reset Value: 07H
1 MODE rw 0
Field MODE
Bits [1:0]
Type Description rw Bit Protection Scheme Control Bits 00 Scheme disabled - direct access to the protected bits is allowed. 11 Scheme enabled - the bit field PASS has to be written with the passwords to open and close the access to protected bits. (default) Others:Scheme Enabled. These two bits cannot be written directly. To change the value between 11B and 00B, the bit field PASS must be written with 11000B; only then, will the MODE[1:0] be registered.
PROTECT_S
2
rh
Bit Protection Signal Status Bit This bit shows the status of the protection. 0 Software is able to write to all protected bits. 1 Software is unable to write to any protected bits. Password Bits The Bit Protection Scheme only recognizes three patterns. 11000B Enables writing of the bit field MODE. 10011B Opens access to writing of all protected bits. 10101B Closes access to writing of all protected bits
PASS
[7:3]
wh
Data Sheet
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SAA-XC886CLM
Functional Description
3.2.4
SAA-XC886 Register Overview
The SFRs of the SAA-XC886 are organized into groups according to their functional units. The contents (bits) of the SFRs are summarized in Chapter 3.2.4.1 to Chapter 3.2.4.14. Note: The addresses of the bitaddressable SFRs appear in bold typeface.
3.2.4.1
CPU Registers
The CPU SFRs can be accessed in both the standard and mapped memory areas (RMAP = 0 or 1). Table 4
RMAP = 0 or 1 81H SP Reset: 07H Stack Pointer Register DPL Reset: 00H Data Pointer Register Low DPH Reset: 00H Data Pointer Register High PCON Reset: 00H Power Control Register TCON Reset: 00H Timer Control Register TMOD Reset: 00H Timer Mode Register Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type 8AH TL0 Reset: 00H Timer 0 Register Low TL1 Reset: 00H Timer 1 Register Low TH0 Reset: 00H Timer 0 Register High TH1 Reset: 00H Timer 1 Register High SCON Reset: 00H Serial Channel Control Register SBUF Reset: 00H Serial Data Buffer Register Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type SM0 rw SM1 rw SM2 rw REN rw VAL rwh DPL7 rw DPH7 rw SMOD rw TF1 rwh GATE 1 rw TR1 rw T1S rw DPL6 rw DPH6 rw DPL5 rw DPH5 rw 0 r TF0 rwh T1M rw VAL rwh VAL rwh VAL rwh VAL rwh TB8 rw RB8 rwh TI rwh RI rwh TR0 rw DPL4 rw DPH4 rw SP rw DPL3 rw DPH3 rw GF1 rw IE1 rwh GATE 0 rw DPL2 rw DPH2 rw GF0 rw IT1 rw T0S rw DPL1 rw DPH1 rw 0 r IE0 rwh T0M rw DPL0 rw DPH0 rw IDLE rw IT0 rw
CPU Register Overview
Bit 7 6 5 4 3 2 1 0
Addr Register Name
82H
83H
87H
88H
89H
8BH
8CH
8DH
98H
99H
Data Sheet
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Functional Description Table 4
A2H
CPU Register Overview (cont'd)
Bit
Bit Field Type
Addr Register Name
EO Reset: 00H Extended Operation Register
7
6
0 r
5
4
TRAP_ EN rw
3
2
0 r
1
0
DPSE L0 rw
A8H
IEN0 Reset: 00H Interrupt Enable Register 0 IP Reset: 00H Interrupt Priority Register IPH Reset: 00H Interrupt Priority High Register PSW Reset: 00H Program Status Word Register ACC Reset: 00H Accumulator Register IEN1 Reset: 00H Interrupt Enable Register 1
Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type
EA rw 0 r 0 r CY rwh ACC7 rw ECCIP 3 rw B7 rw PCCIP 3 rw PCCIP 3H rw
0 r
ET2 rw PT2 rw PT2H rw
ES rw PS rw PSH rw RS1 rw ACC4 rw ECCIP 0 rw B4 rw PCCIP 0 rw PCCIP 0H rw
ET1 rw PT1 rw PT1H rw RS0 rw ACC3 rw EXM rw B3 rw PXM rw PXMH rw
EX1 rw PX1 rw PX1H rw OV rwh ACC2 rw EX2 rw B2 rw PX2 rw PX2H rw
ET0 rw PT0 rw PT0H rw F1 rw ACC1 rw ESSC rw B1 rw PSSC rw PSSC H rw
EX0 rw PX0 rw PX0H rw P rh ACC0 rw EADC rw B0 rw PADC rw PADC H rw
B8H
B9H
D0H
AC rwh ACC6 rw ECCIP 2 rw B6 rw PCCIP 2 rw PCCIP 2H rw
F0 rw ACC5 rw ECCIP 1 rw B5 rw PCCIP 1 rw PCCIP 1H rw
E0H
E8H
F0H
B B Register
Reset: 00H
Bit Field Type Bit Field Type
F8H
IP1 Reset: 00H Interrupt Priority 1 Register
F9H
IPH1 Reset: 00H Bit Field Interrupt Priority 1 High Register Type
3.2.4.2
MDU Registers
The MDU SFRs can be accessed in the mapped memory area (RMAP = 1). Table 5
RMAP = 1 B0H MDUSTAT Reset: 00H MDU Status Register MDUCON Reset: 00H MDU Control Register Bit Field Type Bit Field Type B2H MD0 Reset: 00H MDU Operand Register 0 MR0 Reset: 00H MDU Result Register 0 Bit Field Type Bit Field Type IE rw IR rw 0 r RSEL rw STAR T rwh DATA rw DATA rh BSY rh IERR rwh IRDY rwh
MDU Register Overview
Bit 7 6 5 4 3 2 1 0
Addr Register Name
B1H
OPCODE rw
B2H
Data Sheet
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Functional Description Table 5
B3H
MDU Register Overview (cont'd)
Bit
Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type
Addr Register Name
MD1 Reset: 00H MDU Operand Register 1 MR1 Reset: 00H MDU Result Register 1 MD2 Reset: 00H MDU Operand Register 2 MR2 Reset: 00H MDU Result Register 2 MD3 Reset: 00H MDU Operand Register 3 MR3 Reset: 00H MDU Result Register 3 MD4 Reset: 00H MDU Operand Register 4 MR4 Reset: 00H MDU Result Register 4 MD5 Reset: 00H MDU Operand Register 5 MR5 Reset: 00H MDU Result Register 5
7
6
5
4
DATA rw DATA rh DATA rw DATA rh DATA rw DATA rh DATA rw DATA rh DATA rw DATA rh
3
2
1
0
B3H
B4H
B4H
B5H
B5H
B6H
B6H
B7H
B7H
3.2.4.3
CORDIC Registers
The CORDIC SFRs can be accessed in the mapped memory area (RMAP = 1). Table 6
RMAP = 1 9AH CD_CORDXL Reset: 00H CORDIC X Data Low Byte CD_CORDXH Reset: 00H CORDIC X Data High Byte CD_CORDYL Reset: 00H CORDIC Y Data Low Byte CD_CORDYH Reset: 00H CORDIC Y Data High Byte CD_CORDZL Reset: 00H CORDIC Z Data Low Byte Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type DATAL rw DATAH rw DATAL rw DATAH rw DATAL rw
CORDIC Register Overview
Bit 7 6 5 4 3 2 1 0
Addr Register Name
9BH
9CH
9DH
9EH
Data Sheet
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Functional Description Table 6
9FH
CORDIC Register Overview (cont'd)
Bit
Bit Field Type Bit Field Type Bit Field Type KEEP Z rw MPS rw KEEP Y rw KEEP X rw X_USI GN rw DMAP rw ST_M ODE rw
Addr Register Name
CD_CORDZH Reset: 00H CORDIC Z Data High Byte CD_STATC Reset: 00H CORDIC Status and Data Control Register CD_CON Reset: 00H CORDIC Control Register
7
6
5
4
DATAH rw
3
2
1
0
A0H
INT_E N rw ROTV EC rw
EOC rwh
ERRO R rh
BSY rh ST rwh
A1H
MODE rw
3.2.4.4
System Control Registers
The system control SFRs can be accessed in the mapped memory area (RMAP = 0). Table 7
RMAP = 0 or 1 8FH SYSCON0 Reset: 04H System Control Register 0 Bit Field Type RMAP = 0 BFH SCU_PAGE Page Register Reset: 00H Bit Field Type OP w STNR w 0 r PAGE rw 0 r IMOD E rw 0 r 1 r 0 r RMAP rw
SCU Register Overview
Bit 7 6 5 4 3 2 1 0
Addr Register Name
RMAP = 0, PAGE 0 B3H MODPISEL Reset: 00H Peripheral Input Select Register Bit Field Type B4H IRCON0 Reset: 00H Interrupt Request Register 0 Bit Field Type B5H IRCON1 Reset: 00H Interrupt Request Register 1 Bit Field Type B6H IRCON2 Reset: 00H Interrupt Request Register 2 Bit Field Type B7H EXICON0 Reset: F0H External Interrupt Control Register 0 EXICON1 Reset: 3FH External Interrupt Control Register 1 NMICON Reset: 00H NMI Control Register Bit Field Type Bit Field Type Bit Field Type 0 r EXINT3 rw 0 r NMI ECC rw NMI VDDP rw 0 r 0 r 0 r URRIS H rw EXINT 6 rwh CANS RC2 rwh 0 r JTAGT DIS rw EXINT 5 rwh CANS RC1 rwh JTAGT CKS rw EXINT 4 rwh ADCS R1 rwh CANS RC3 rwh EXINT2 rw EXINT6 rw NMI VDD rw NMI OCDS rw EXINT1 rw EXINT5 rw NMI FLASH rw NMI PLL rw EXINT 2IS rw EXINT 3 rwh ADCS R0 rwh EXINT 1IS rw EXINT 2 rwh RIR rwh 0 r EXINT 0IS rw EXINT 1 rwh TIR rwh URRIS rw EXINT 0 rwh EIR rwh CANS RC0 rwh EXINT0 rw EXINT4 rw NMI WDT rw
BAH
BBH
Data Sheet
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Functional Description Table 7
BCH
SCU Register Overview (cont'd)
Bit
Bit Field Type
Addr Register Name
NMISR Reset: 00H NMI Status Register
7
0 r
6
FNMI ECC rwh BGSEL rw
5
FNMI VDDP rwh 0 r
4
FNMI VDD rwh BRDIS rw
3
FNMI OCDS rwh
2
FNMI FLASH rwh BRPRE rw
1
FNMI PLL rwh
0
FNMI WDT rwh R rw
BDH
BCON Reset: 00H Baud Rate Control Register BG Reset: 00H Baud Rate Timer/Reload Register FDCON Reset: 00H Fractional Divider Control Register FDSTEP Reset: 00H Fractional Divider Reload Register FDRES Reset: 00H Fractional Divider Result Register
Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type
BEH
BR_VALUE rwh BGS rw SYNE N rw ERRS YN rwh EOFS YN rwh STEP rw RESULT rh BRK rwh NDOV rwh FDM rw FDEN rw
E9H
EAH
EBH
RMAP = 0, PAGE 1 B3H ID Identity Register Reset: UUH Bit Field Type Bit Field Type B5H PMCON1 Reset: 00H Power Mode Control Register 1 Bit Field Type B6H OSC_CON Reset: 08H OSC Control Register Bit Field Type B7H PLL_CON Reset: 90H PLL Control Register Bit Field Type BAH CMCON Reset: 10H Clock Control Register Bit Field Type BBH PASSWD Reset: 07H Password Register Bit Field Type BCH FEAL Reset: 00H Flash Error Address Register Low FEAH Reset: 00H Flash Error Address Register High Bit Field Type Bit Field Type VCO SEL rw KDIV rw 0 r 0 r WDT RST rwh CDC_ DIS rw 0 r NDIV rw 0 r PASS wh ECCERRADDR rh ECCERRADDR rh FCCF G rw PRODID r WKRS rwh CAN_ DIS rw WK SEL rw MDU_ DIS rw OSC PD rw SD rw T2_ DIS rw XPD rw VCO BYP rw PD rwh CCU_ DIS rw OSC SS rw OSC DISC rw SSC_ DIS rw ORD RES rwh RESL D rwh VERID r WS rw ADC_ DIS rw OSCR rh LOCK rh
B4H
PMCON0 Reset: 00H Power Mode Control Register 0
CLKREL rw PROT ECT_S rh MODE rw
BDH
Data Sheet
32
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 7
BEH
SCU Register Overview (cont'd)
Bit
Bit Field Type
Addr Register Name
COCON Reset: 00H Clock Output Control Register
7
0 r
6
5
TLEN rw
4
COUT S rw 0 r
3
2
COREL rw
1
0
E9H
MISC_CON Reset: 00H Miscellaneous Control Register
Bit Field Type
DFLAS HEN rwh
RMAP = 0, PAGE 3 B3H XADDRH Reset: F0H On-chip XRAM Address Higher Order IRCON3 Reset: 00H Interrupt Request Register 3 Bit Field Type Bit Field Type B5H IRCON4 Reset: 00H Interrupt Request Register 4 Bit Field Type B7H MODPISEL1 Reset: 00H Peripheral Input Select Register 1 MODPISEL2 Reset: 00H Peripheral Input Select Register 2 PMCON2 Reset: 00H Power Mode Control Register 2 Bit Field Type Bit Field Type Bit Field Type BDH MODSUSP Reset: 01H Module Suspend Control Register Bit Field Type 0 r EXINT 6IS rw 0 r 0 r 0 r 0 r 0 r T21SU SP rw T2SUS P rw T13SU SP rw CANS RC5 rwh CANS RC7 rwh CCU6 SR1 rwh CCU6 SR3 rwh UR1RIS rw T21IS rw ADDRH rw 0 r 0 r T21EX IS rw T2IS rw CANS RC4 rwh CANS RC6 rwh JTAGT DIS1 rw T1IS rw UART 1_DIS rw T12SU SP rw CCU6 SR0 rwh CCU6 SR2 rwh JTAGT CKS1 rw T0IS rw T21_D IS rw WDTS USP rw
B4H
BAH
BBH
3.2.4.5
WDT Registers
The WDT SFRs can be accessed in the mapped memory area (RMAP = 1). Table 8
RMAP = 1 BBH WDTCON Reset: 00H Watchdog Timer Control Register WDTREL Reset: 00H Watchdog Timer Reload Register WDTWINB Reset: 00H Watchdog Window-Boundary Count Register Bit Field Type Bit Field Type Bit Field Type 0 r WINB EN rw WDTP R rh 0 r WDTE N rw WDTR S rwh WDTI N rw
WDT Register Overview
Bit 7 6 5 4 3 2 1 0
Addr Register Name
BCH
WDTREL rw WDTWINB rw
BDH
Data Sheet
33
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 8
BEH
WDT Register Overview (cont'd)
Bit
Bit Field Type Bit Field Type
Addr Register Name
WDTL Reset: 00H Watchdog Timer Register Low WDTH Reset: 00H Watchdog Timer Register High
7
6
5
4
WDT rh WDT rh
3
2
1
0
BFH
3.2.4.6
Port Registers
The Port SFRs can be accessed in the standard memory area (RMAP = 0). Table 9
RMAP = 0 B2H PORT_PAGE Page Register Reset: 00H Bit Field Type OP w STNR w 0 r PAGE rw
Port Register Overview
Bit 7 6 5 4 3 2 1 0
Addr Register Name
RMAP = 0, PAGE 0 80H P0_DATA Reset: 00H P0 Data Register P0_DIR Reset: 00H P0 Direction Register P1_DATA Reset: 00H P1 Data Register P1_DIR Reset: 00H P1 Direction Register P5_DATA Reset: 00H P5 Data Register P5_DIR Reset: 00H P5 Direction Register P2_DATA Reset: 00H P2 Data Register P2_DIR Reset: 00H P2 Direction Register P3_DATA Reset: 00H P3 Data Register P3_DIR Reset: 00H P3 Direction Register P4_DATA Reset: 00H P4 Data Register P4_DIR Reset: 00H P4 Direction Register Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type P7 rw P7 rw P7 rw P7 rw P7 rw P7 rw P7 rw P7 rw P7 rw P7 rw P7 rw P7 rw P6 rw P6 rw P6 rw P6 rw P6 rw P6 rw P6 rw P6 rw P6 rw P6 rw P6 rw P6 rw P5 rw P5 rw P5 rw P5 rw P5 rw P5 rw P5 rw P5 rw P5 rw P5 rw P5 rw P5 rw P4 rw P4 rw P4 rw P4 rw P4 rw P4 rw P4 rw P4 rw P4 rw P4 rw P4 rw P4 rw P3 rw P3 rw P3 rw P3 rw P3 rw P3 rw P3 rw P3 rw P3 rw P3 rw P3 rw P3 rw P2 rw P2 rw P2 rw P2 rw P2 rw P2 rw P2 rw P2 rw P2 rw P2 rw P2 rw P2 rw P1 rw P1 rw P1 rw P1 rw P1 rw P1 rw P1 rw P1 rw P1 rw P1 rw P1 rw P1 rw P0 rw P0 rw P0 rw P0 rw P0 rw P0 rw P0 rw P0 rw P0 rw P0 rw P0 rw P0 rw
86H
90H
91H
92H
93H
A0H
A1H
B0H
B1H
C8H
C9H
Data Sheet
34
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 9
RMAP = 0, PAGE 1 80H P0_PUDSEL Reset: FFH P0 Pull-Up/Pull-Down Select Register P0_PUDEN Reset: C4H P0 Pull-Up/Pull-Down Enable Register P1_PUDSEL Reset: FFH P1 Pull-Up/Pull-Down Select Register P1_PUDEN Reset: FFH P1 Pull-Up/Pull-Down Enable Register P5_PUDSEL Reset: FFH P5 Pull-Up/Pull-Down Select Register P5_PUDEN Reset: FFH P5 Pull-Up/Pull-Down Enable Register P2_PUDSEL Reset: FFH P2 Pull-Up/Pull-Down Select Register P2_PUDEN Reset: 00H P2 Pull-Up/Pull-Down Enable Register P3_PUDSEL Reset: BFH P3 Pull-Up/Pull-Down Select Register P3_PUDEN Reset: 40H P3 Pull-Up/Pull-Down Enable Register P4_PUDSEL Reset: FFH P4 Pull-Up/Pull-Down Select Register P4_PUDEN Reset: 04H P4 Pull-Up/Pull-Down Enable Register Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type P7 rw P7 rw P7 rw P7 rw P7 rw P7 rw P7 rw P7 rw P7 rw P7 rw P7 rw P7 rw P6 rw P6 rw P6 rw P6 rw P6 rw P6 rw P6 rw P6 rw P6 rw P6 rw P6 rw P6 rw P5 rw P5 rw P5 rw P5 rw P5 rw P5 rw P5 rw P5 rw P5 rw P5 rw P5 rw P5 rw P4 rw P4 rw P4 rw P4 rw P4 rw P4 rw P4 rw P4 rw P4 rw P4 rw P4 rw P4 rw P3 rw P3 rw P3 rw P3 rw P3 rw P3 rw P3 rw P3 rw P3 rw P3 rw P3 rw P3 rw P2 rw P2 rw P2 rw P2 rw P2 rw P2 rw P2 rw P2 rw P2 rw P2 rw P2 rw P2 rw P1 rw P1 rw P1 rw P1 rw P1 rw P1 rw P1 rw P1 rw P1 rw P1 rw P1 rw P1 rw P0 rw P0 rw P0 rw P0 rw P0 rw P0 rw P0 rw P0 rw P0 rw P0 rw P0 rw P0 rw
Port Register Overview (cont'd)
Bit 7 6 5 4 3 2 1 0
Addr Register Name
86H
90H
91H
92H
93H
A0H
A1H
B0H
B1H
C8H
C9H
RMAP = 0, PAGE 2 80H P0_ALTSEL0 Reset: 00H P0 Alternate Select 0 Register P0_ALTSEL1 Reset: 00H P0 Alternate Select 1 Register P1_ALTSEL0 Reset: 00H P1 Alternate Select 0 Register P1_ALTSEL1 Reset: 00H P1 Alternate Select 1 Register P5_ALTSEL0 Reset: 00H P5 Alternate Select 0 Register Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type P7 rw P7 rw P7 rw P7 rw P7 rw P6 rw P6 rw P6 rw P6 rw P6 rw P5 rw P5 rw P5 rw P5 rw P5 rw P4 rw P4 rw P4 rw P4 rw P4 rw P3 rw P3 rw P3 rw P3 rw P3 rw P2 rw P2 rw P2 rw P2 rw P2 rw P1 rw P1 rw P1 rw P1 rw P1 rw P0 rw P0 rw P0 rw P0 rw P0 rw
86H
90H
91H
92H
Data Sheet
35
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 9
93H
Port Register Overview (cont'd)
Bit
Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type
Addr Register Name
P5_ALTSEL1 Reset: 00H P5 Alternate Select 1 Register P3_ALTSEL0 Reset: 00H P3 Alternate Select 0 Register P3_ALTSEL1 Reset: 00H P3 Alternate Select 1 Register P4_ALTSEL0 Reset: 00H P4 Alternate Select 0 Register P4_ALTSEL1 Reset: 00H P4 Alternate Select 1 Register
7
P7 rw P7 rw P7 rw P7 rw P7 rw
6
P6 rw P6 rw P6 rw P6 rw P6 rw
5
P5 rw P5 rw P5 rw P5 rw P5 rw
4
P4 rw P4 rw P4 rw P4 rw P4 rw
3
P3 rw P3 rw P3 rw P3 rw P3 rw
2
P2 rw P2 rw P2 rw P2 rw P2 rw
1
P1 rw P1 rw P1 rw P1 rw P1 rw
0
P0 rw P0 rw P0 rw P0 rw P0 rw
B0H
B1H
C8H
C9H
RMAP = 0, PAGE 3 80H P0_OD Reset: 00H P0 Open Drain Control Register P1_OD Reset: 00H P1 Open Drain Control Register P5_OD Reset: 00H P5 Open Drain Control Register P3_OD Reset: 00H P3 Open Drain Control Register P4_OD Reset: 00H P4 Open Drain Control Register Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type P7 rw P7 rw P7 rw P7 rw P7 rw P6 rw P6 rw P6 rw P6 rw P6 rw P5 rw P5 rw P5 rw P5 rw P5 rw P4 rw P4 rw P4 rw P4 rw P4 rw P3 rw P3 rw P3 rw P3 rw P3 rw P2 rw P2 rw P2 rw P2 rw P2 rw P1 rw P1 rw P1 rw P1 rw P1 rw P0 rw P0 rw P0 rw P0 rw P0 rw
90H
92H
B0H
C8H
3.2.4.7
ADC Registers
The ADC SFRs can be accessed in the standard memory area (RMAP = 0). Table 10
RMAP = 0 D1H ADC_PAGE Page Register Reset: 00H Bit Field Type OP w STNR w 0 r PAGE rw
ADC Register Overview
Bit 7 6 5 4 3 2 1 0
Addr Register Name
RMAP = 0, PAGE 0 CAH ADC_GLOBCTR Reset: 30H Global Control Register ADC_GLOBSTR Reset: 00H Global Status Register Bit Field Type Bit Field Type CCH ADC_PRAR Reset: 00H Priority and Arbitration Register Bit Field Type ASEN 1 rw ANON rw 0 r ASEN 0 rw 0 r DW rw CTC rw CHNR rh ARBM rw CSM1 rw 0 r PRIO1 rw 0 r SAMP LE rh CSM0 rw BUSY rh PRIO0 rw
CBH
Data Sheet
36
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 10
CDH
ADC Register Overview (cont'd)
Bit
Bit Field Type Bit Field Type Bit Field Type SYNE N1 rw SYNE N0 rw
Addr Register Name
ADC_LCBR Reset: B7H Limit Check Boundary Register ADC_INPCR0 Reset: 00H Input Class 0 Register ADC_ETRCR Reset: 00H External Trigger Control Register
7
6
rw
5
4
3
2
rw
1
0
BOUND1
BOUND0
CEH
STC rw ETRSEL1 rw ETRSEL0 rw
CFH
RMAP = 0, PAGE 1 CAH ADC_CHCTR0 Reset: 00H Channel Control Register 0 ADC_CHCTR1 Reset: 00H Channel Control Register 1 ADC_CHCTR2 Reset: 00H Channel Control Register 2 ADC_CHCTR3 Reset: 00H Channel Control Register 3 ADC_CHCTR4 Reset: 00H Channel Control Register 4 ADC_CHCTR5 Reset: 00H Channel Control Register 5 ADC_CHCTR6 Reset: 00H Channel Control Register 6 ADC_CHCTR7 Reset: 00H Channel Control Register 7 Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type 0 r 0 r 0 r 0 r 0 r 0 r 0 r 0 r LCC rw LCC rw LCC rw LCC rw LCC rw LCC rw LCC rw LCC rw 0 r 0 r 0 r 0 r 0 r 0 r 0 r 0 r RESRSEL rw RESRSEL rw RESRSEL rw RESRSEL rw RESRSEL rw RESRSEL rw RESRSEL rw RESRSEL rw
CBH
CCH
CDH
CEH
CFH
D2H
D3H
RMAP = 0, PAGE 2 CAH ADC_RESR0L Reset: 00H Result Register 0 Low ADC_RESR0H Reset: 00H Result Register 0 High ADC_RESR1L Reset: 00H Result Register 1 Low ADC_RESR1H Reset: 00H Result Register 1 High ADC_RESR2L Reset: 00H Result Register 2 Low ADC_RESR2H Reset: 00H Result Register 2 High ADC_RESR3L Reset: 00H Result Register 3 Low Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type RESULT rh 0 r VF rh RESULT rh 0 r VF rh RESULT rh 0 r VF rh RESULT rh 0 r VF rh DRC rh CHNR rh
CBH
RESULT rh DRC rh CHNR rh
CCH
CDH
RESULT rh DRC rh CHNR rh
CEH
CFH
RESULT rh DRC rh CHNR rh
D2H
Data Sheet
37
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 10
D3H
ADC Register Overview (cont'd)
Bit
Bit Field Type
Addr Register Name
ADC_RESR3H Reset: 00H Result Register 3 High
7
6
5
4
rh
3
2
1
0
RESULT
RMAP = 0, PAGE 3 CAH ADC_RESRA0L Reset: 00H Result Register 0, View A Low ADC_RESRA0H Reset: 00H Result Register 0, View A High ADC_RESRA1L Reset: 00H Result Register 1, View A Low ADC_RESRA1H Reset: 00H Result Register 1, View A High ADC_RESRA2L Reset: 00H Result Register 2, View A Low ADC_RESRA2H Reset: 00H Result Register 2, View A High ADC_RESRA3L Reset: 00H Result Register 3, View A Low ADC_RESRA3H Reset: 00H Result Register 3, View A High Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type RESULT rh VF rh RESULT rh VF rh RESULT rh VF rh RESULT rh VF rh DRC rh CHNR rh
CBH
RESULT rh DRC rh CHNR rh
CCH
CDH
RESULT rh DRC rh CHNR rh
CEH
CFH
RESULT rh DRC rh CHNR rh
D2H
D3H
RESULT rh
RMAP = 0, PAGE 4 CAH ADC_RCR0 Reset: 00H Result Control Register 0 Bit Field Type CBH ADC_RCR1 Reset: 00H Result Control Register 1 Bit Field Type CCH ADC_RCR2 Reset: 00H Result Control Register 2 Bit Field Type CDH ADC_RCR3 Reset: 00H Result Control Register 3 Bit Field Type CEH ADC_VFCR Reset: 00H Valid Flag Clear Register Bit Field Type VFCT R rw VFCT R rw VFCT R rw VFCT R rw WFR rw WFR rw WFR rw WFR rw 0 r 0 r 0 r 0 r 0 r IEN rw IEN rw IEN rw IEN rw VFC3 w 0 r 0 r 0 r 0 r VFC2 w VFC1 w DRCT R rw DRCT R rw DRCT R rw DRCT R rw VFC0 w
RMAP = 0, PAGE 5 CAH ADC_CHINFR Reset: 00H Channel Interrupt Flag Register Bit Field Type CBH ADC_CHINCR Reset: 00H Bit Field Channel Interrupt Clear Register Type CHINF 7 rh CHINC 7 w CHINF 6 rh CHINC 6 w CHINF 5 rh CHINC 5 w CHINF 4 rh CHINC 4 w CHINF 3 rh CHINC 3 w CHINF 2 rh CHINC 2 w CHINF 1 rh CHINC 1 w CHINF 0 rh CHINC 0 w
Data Sheet
38
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 10
CCH
ADC Register Overview (cont'd)
Bit
Bit Field Type
Addr Register Name
ADC_CHINSR Reset: 00H Channel Interrupt Set Register
7
CHINS 7 w CHINP 7 rw EVINF 7 rh EVINC 7 w EVINS 7 w EVINP 7 rw
6
CHINS 6 w CHINP 6 rw EVINF 6 rh EVINC 6 w EVINS 6 w EVINP 6 rw
5
CHINS 5 w CHINP 5 rw EVINF 5 rh EVINC 5 w EVINS 5 w EVINP 5 rw
4
CHINS 4 w CHINP 4 rw EVINF 4 rh EVINC 4 w EVINS 4 w EVINP 4 rw
3
CHINS 3 w CHINP 3 rw 0 r 0 r 0 r 0 r
2
CHINS 2 w CHINP 2 rw
1
CHINS 1 w CHINP 1 rw EVINF 1 rh EVINC 1 w EVINS 1 w EVINP 1 rw
0
CHINS 0 w CHINP 0 rw EVINF 0 rh EVINC 0 w EVINS 0 w EVINP 0 rw
CDH
ADC_CHINPR Reset: 00H Channel Interrupt Node Pointer Register ADC_EVINFR Reset: 00H Event Interrupt Flag Register
Bit Field Type Bit Field Type
CEH
CFH
ADC_EVINCR Reset: 00H Event Interrupt Clear Flag Register
Bit Field Type
D2H
Bit Field ADC_EVINSR Reset: 00H Event Interrupt Set Flag Register Type
D3H
ADC_EVINPR Reset: 00H Event Interrupt Node Pointer Register
Bit Field Type
RMAP = 0, PAGE 6 CAH ADC_CRCR1 Reset: 00H Conversion Request Control Register 1 ADC_CRPR1 Reset: 00H Conversion Request Pending Register 1 ADC_CRMR1 Reset: 00H Conversion Request Mode Register 1 ADC_QMR0 Reset: 00H Queue Mode Register 0 Bit Field Type Bit Field Type Bit Field Type Bit Field Type CEH ADC_QSR0 Reset: 20H Queue Status Register 0 Bit Field Type CFH ADC_Q0R0 Reset: 00H Queue 0 Register 0 ADC_QBUR0 Reset: 00H Queue Backup Register 0 ADC_QINR0 Reset: 00H Queue Input Register 0 Bit Field Type Bit Field Type Bit Field Type CH7 rwh CHP7 rwh Rsv r CEV w Rsv r EXTR rh EXTR rh EXTR w CH6 rwh CHP6 rwh LDEV w TREV w 0 r ENSI rh ENSI rh ENSI w CH5 rwh CHP5 rwh CLRP ND w FLUS H w EMPT Y rh RF rh RF rh RF w CH4 rwh CHP4 rwh SCAN rw CLRV w EV rh V rh V rh 0 r 0 r 0 r ENSI rw 0 r 0 r ENTR rw ENTR rw 0 r 0 r 0 r 0 r FILL rh REQCHNR rh REQCHNR rh REQCHNR w ENGT rw ENGT rw
CBH
CCH
CDH
D2H
D2H
Data Sheet
39
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.2.4.8
Timer 2 Registers
The Timer 2 SFRs can be accessed in the standard memory area (RMAP = 0). Table 11
RMAP = 0 C0H T2_T2CON Reset: 00H Timer 2 Control Register Bit Field Type C1H T2_T2MOD Reset: 00H Timer 2 Mode Register Bit Field Type C2H T2_RC2L Reset: 00H Timer 2 Reload/Capture Register Low T2_RC2H Reset: 00H Timer 2 Reload/Capture Register High T2_T2L Reset: 00H Timer 2 Register Low T2_T2H Reset: 00H Timer 2 Register High Bit Field Type Bit Field Type Bit Field Type Bit Field Type TF2 rwh T2RE GS rw EXF2 rwh T2RH EN rw EDGE SEL rw 0 r PREN rw RC2 rwh RC2 rwh THL2 rwh THL2 rwh rw EXEN 2 rw TR2 rwh T2PRE rw rw C/T2 rw CP/ RL2 rw DCEN rw
T2 Register Overview
Bit 7 6 5 4 3 2 1 0
Addr Register Name
C3H
C4H
C5H
3.2.4.9
Timer 21 Registers
The Timer 21 SFRs can be accessed in the mapped memory area (RMAP = 1). Table 12
RMAP = 1 C0H T21_T2CON Reset: 00H Timer 2 Control Register Bit Field Type C1H T21_T2MOD Reset: 00H Timer 2 Mode Register Bit Field Type C2H T21_RC2L Reset: 00H Timer 2 Reload/Capture Register Low T21_RC2H Reset: 00H Timer 2 Reload/Capture Register High T21_T2L Reset: 00H Timer 2 Register Low Bit Field Type Bit Field Type Bit Field Type TF2 rwh T2RE GS rw EXF2 rwh T2RH EN rw EDGE SEL rw 0 r PREN rw RC2 rwh RC2 rwh THL2 rwh rw EXEN 2 rw TR2 rwh T2PRE rw rw C/T2 rw CP/ RL2 rw DCEN rw
T21 Register Overview
Bit 7 6 5 4 3 2 1 0
Addr Register Name
C3H
C4H
Data Sheet
40
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 12
C5H
T21 Register Overview (cont'd)
Bit
Bit Field Type
Addr Register Name
T21_T2H Reset: 00H Timer 2 Register High
7
6
5
4
THL2 rwh
3
2
1
0
3.2.4.10 CCU6 Registers
The CCU6 SFRs can be accessed in the standard memory area (RMAP = 0). Table 13
RMAP = 0 A3H CCU6_PAGE Page Register Reset: 00H Bit Field Type OP w STNR w 0 r PAGE rw
CCU6 Register Overview
Bit 7 6 5 4 3 2 1 0
Addr Register Name
RMAP = 0, PAGE 0 9AH CCU6_CC63SRL Reset: 00H Capture/Compare Shadow Register for Channel CC63 Low CCU6_CC63SRH Reset: 00H Capture/Compare Shadow Register for Channel CC63 High CCU6_TCTR4L Reset: 00H Timer Control Register 4 Low Bit Field Type Bit Field Type Bit Field Type 9DH CCU6_TCTR4H Reset: 00H Timer Control Register 4 High Bit Field Type 9EH CCU6_MCMOUTSL Reset: 00H Multi-Channel Mode Output Shadow Register Low CCU6_MCMOUTSH Reset: 00H Multi-Channel Mode Output Shadow Register High CCU6_ISRL Reset: 00H Capture/Compare Interrupt Status Reset Register Low CCU6_ISRH Reset: 00H Capture/Compare Interrupt Status Reset Register High CCU6_CMPMODIFL Reset: 00H Compare State Modification Register Low CCU6_CMPMODIFH Reset: 00H Compare State Modification Register High Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type T12 STD w T13 STD w STRM CM w STRH P w RT12 PM w RSTR w 0 r 0 r T12 STR w T13 STR w 0 r 0 r RT12 OM w RIDLE w MCC6 3S w MCC6 3R w RCC6 2F w RWH E w CURHS rw RCC6 2R w RCHE w 0 r 0 r RCC6 1F w 0 r RCC6 1R w RTRP F w MCC6 2S w MCC6 2R w 0 r 0 r CC63SL rw CC63SH rw DT RES w T12 RES w T13 RES w MCMPS rw EXPHS rw RCC6 0F w RT13 PM w MCC6 1S w MCC6 1R w RCC6 0R w RT13 CM w MCC6 0S w MCC6 0R w T12R S w T13R S w T12R R w T13R R w
9BH
9CH
9FH
A4H
A5H
A6H
A7H
Data Sheet
41
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 13
FAH
CCU6 Register Overview (cont'd)
Bit
Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type
Addr Register Name
CCU6_CC60SRL Reset: 00H Capture/Compare Shadow Register for Channel CC60 Low CCU6_CC60SRH Reset: 00H Capture/Compare Shadow Register for Channel CC60 High CCU6_CC61SRL Reset: 00H Capture/Compare Shadow Register for Channel CC61 Low CCU6_CC61SRH Reset: 00H Capture/Compare Shadow Register for Channel CC61 High CCU6_CC62SRL Reset: 00H Capture/Compare Shadow Register for Channel CC62 Low CCU6_CC62SRH Reset: 00H Capture/Compare Shadow Register for Channel CC62 High
7
6
5
4
rwh
3
2
1
0
CC60SL
FBH
CC60SH rwh CC61SL rwh CC61SH rwh CC62SL rwh CC62SH rwh
FCH
FDH
FEH
FFH
RMAP = 0, PAGE 1 9AH CCU6_CC63RL Reset: 00H Capture/Compare Register for Channel CC63 Low CCU6_CC63RH Reset: 00H Capture/Compare Register for Channel CC63 High CCU6_T12PRL Reset: 00H Timer T12 Period Register Low CCU6_T12PRH Reset: 00H Timer T12 Period Register High CCU6_T13PRL Reset: 00H Timer T13 Period Register Low CCU6_T13PRH Reset: 00H Timer T13 Period Register High CCU6_T12DTCL Reset: 00H Dead-Time Control Register for Timer T12 Low CCU6_T12DTCH Reset: 00H Dead-Time Control Register for Timer T12 High CCU6_TCTR0L Reset: 00H Timer Control Register 0 Low Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type A7H CCU6_TCTR0H Reset: 00H Timer Control Register 0 High Bit Field Type FAH CCU6_CC60RL Reset: 00H Capture/Compare Register for Channel CC60 Low Bit Field Type 0 r CTM rw 0 r DTR2 rh CDIR rh DTR1 rh STE1 2 rh STE1 3 rh DTR0 rh T12R rh T13R rh CC63VL rh CC63VH rh T12PVL rwh T12PVH rwh T13PVL rwh T13PVH rwh DTM rw 0 r T12 PRE rw T13 PRE rw DTE2 rw DTE1 rw T12CLK rw T13CLK rw DTE0 rw
9BH
9CH
9DH
9EH
9FH
A4H
A5H
A6H
CC60VL rh
Data Sheet
42
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 13
FBH
CCU6 Register Overview (cont'd)
Bit
Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type
Addr Register Name
CCU6_CC60RH Reset: 00H Capture/Compare Register for Channel CC60 High CCU6_CC61RL Reset: 00H Capture/Compare Register for Channel CC61 Low CCU6_CC61RH Reset: 00H Capture/Compare Register for Channel CC61 High CCU6_CC62RL Reset: 00H Capture/Compare Register for Channel CC62 Low CCU6_CC62RH Reset: 00H Capture/Compare Register for Channel CC62 High
7
6
5
4
rh
3
2
1
0
CC60VH
FCH
CC61VL rh CC61VH rh CC62VL rh CC62VH rh
FDH
FEH
FFH
RMAP = 0, PAGE 2 9AH CCU6_T12MSELL Reset: 00H T12 Capture/Compare Mode Select Register Low CCU6_T12MSELH Reset: 00H T12 Capture/Compare Mode Select Register High CCU6_IENL Reset: 00H Capture/Compare Interrupt Enable Register Low Bit Field Type Bit Field Type Bit Field DBYP rw ENT1 2 PM rw EN STR rw ENT1 2 OM rw EN IDLE rw MSEL61 rw HSYNC rw ENCC 62F rw EN WHE rw ENCC 62R rw EN CHE rw ENCC 61F rw 0 r ENCC 61R rw EN TRPF rw MSEL60 rw MSEL62 rw ENCC 60F rw ENT1 3PM rw ENCC 60R rw ENT1 3CM rw
9BH
9CH
Type 9DH CCU6_IENH Reset: 00H Capture/Compare Interrupt Enable Register High CCU6_INPL Reset: 40H Capture/Compare Interrupt Node Pointer Register Low CCU6_INPH Reset: 39H Capture/Compare Interrupt Node Pointer Register High CCU6_ISSL Reset: 00H Capture/Compare Interrupt Status Set Register Low CCU6_ISSH Reset: 00H Capture/Compare Interrupt Status Set Register High CCU6_PSLR Reset: 00H Passive State Level Register Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type
9EH
INPCHE rw 0 r ST12 PM w SSTR w PSL63 rwh 0 r 0 r T13TED rw ST12 OM w SIDLE w 0 r
INPCC62 rw INPT13 rw SCC6 2F w SWHE w SCC6 2R w SCHE w
INPCC61 rw INPT12 rw SCC6 1F w SWH C w PSL rwh SCC6 1R w STRP F w
INPCC60 rw INPERR rw SCC6 0F w ST13 PM w SCC6 0R w ST13 CM w
9FH
A4H
A5H
A6H
A7H
CCU6_MCMCTR Reset: 00H Bit Field Multi-Channel Mode Control Register Type CCU6_TCTR2L Reset: 00H Timer Control Register 2 Low Bit Field Type
SWSYN rw
0 r T13TEC rw
SWSEL rw T13 SSC rw T12 SSC rw
FAH
Data Sheet
43
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 13
FBH
CCU6 Register Overview (cont'd)
Bit
Bit Field Type Bit Field Type MCM EN rw ECT1 3O rw 0 r 0 r 0 r TRPP EN rw TRPE N13 rw
Addr Register Name
CCU6_TCTR2H Reset: 00H Timer Control Register 2 High CCU6_MODCTRL Reset: 00H Modulation Control Register Low
7
6
0 r
5
4
3
rw
2
1
rw
0
T13RSEL
T12RSEL
FCH
T12MODEN rw T13MODEN rw TRPM 2 rw TRPEN rw TRPM 1 rw TRPM 0 rw
FDH
CCU6_MODCTRH Reset: 00H Modulation Control Register High
Bit Field Type
FEH
CCU6_TRPCTRL Reset: 00H Trap Control Register Low
Bit Field Type
FFH
CCU6_TRPCTRH Reset: 00H Trap Control Register High
Bit Field Type
RMAP = 0, PAGE 3 9AH CCU6_MCMOUTL Reset: 00H Multi-Channel Mode Output Register Low CCU6_MCMOUTH Reset: 00H Multi-Channel Mode Output Register High CCU6_ISL Reset: 00H Capture/Compare Interrupt Status Register Low CCU6_ISH Reset: 00H Capture/Compare Interrupt Status Register High CCU6_PISEL0L Reset: 00H Port Input Select Register 0 Low CCU6_PISEL0H Reset: 00H Port Input Select Register 0 High CCU6_PISEL2 Reset: 00H Port Input Select Register 2 CCU6_T12L Reset: 00H Timer T12 Counter Register Low CCU6_T12H Reset: 00H Timer T12 Counter Register High CCU6_T13L Reset: 00H Timer T13 Counter Register Low CCU6_T13H Reset: 00H Timer T13 Counter Register High Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type T12 PM rh STR rh ISTRP rw IST12HR rw 0 r 0 r T12 OM rh IDLE rh ICC62 F rh WHE rh R rh CURH rh ICC62 R rh CHE rh ICC61 F rh TRPS rh ICC61 R rh TRPF rh MCMP rh EXPH rh ICC60 F rh T13 PM rh ICC60 R rh T13 CM rh
9BH
9CH
9DH
9EH
ISCC62 rw ISPOS2 rw 0 r T12CVL rwh T12CVH rwh T13CVL rwh T13CVH rwh
ISCC61 rw ISPOS1 rw
ISCC60 rw ISPOS0 rw IST13HR rw
9FH
A4H
FAH
FBH
FCH
FDH
Data Sheet
44
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 13
FEH
CCU6 Register Overview (cont'd)
Bit
Bit Field Type
Addr Register Name
CCU6_CMPSTATL Reset: 00H Compare State Register Low
7
0 r T13IM rwh
6
CC63 ST rh COUT 63PS rwh
5
CC POS2 rh COUT 62PS rwh
4
CC POS1 rh CC62 PS rwh
3
CC POS0 rh COUT 61PS rwh
2
CC62 ST rh CC61 PS rwh
1
CC61 ST rh COUT 60PS rwh
0
CC60 ST rh CC60 PS rwh
FFH
CCU6_CMPSTATH Reset: 00H Compare State Register High
Bit Field Type
3.2.4.11 UART1 Registers
The UART1 SFRs can be accessed in the mapped memory area (RMAP = 1). Table 14
RMAP = 1 C8H SCON Reset: 00H Serial Channel Control Register SBUF Reset: 00H Serial Data Buffer Register BCON Reset: 00H Baud Rate Control Register BG Reset: 00H Baud Rate Timer/Reload Register FDCON Reset: 00H Fractional Divider Control Register FDSTEP Reset: 00H Fractional Divider Reload Register FDRES Reset: 00H Fractional Divider Result Register Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type 0 r STEP rw RESULT rh 0 r BR_VALUE rwh NDOV rwh FDM rw FDEN rw SM0 rw SM1 rw SM2 rw REN rw VAL rwh BRPRE rw R rw TB8 rw RB8 rwh TI rwh RI rwh
UART1 Register Overview
Bit 7 6 5 4 3 2 1 0
Addr Register Name
C9H
CAH
CBH
CCH
CDH
CEH
Data Sheet
45
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.2.4.12 SSC Registers
The SSC SFRs can be accessed in the standard memory area (RMAP = 0). Table 15
RMAP = 0 A9H SSC_PISEL Reset: 00H Port Input Select Register SSC_CONL Reset: 00H Control Register Low Programming Mode SSC_CONL Reset: 00H Control Register Low Operating Mode SSC_CONH Reset: 00H Control Register High Programming Mode SSC_CONH Reset: 00H Control Register High Operating Mode SSC_TBL Reset: 00H Transmitter Buffer Register Low SSC_RBL Reset: 00H Receiver Buffer Register Low SSC_BRL Reset: 00H Baud Rate Timer Reload Register Low SSC_BRH Reset: 00H Baud Rate Timer Reload Register High Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type Bit Field Type EN rw EN rw MS rw MS rw LB rw PO rw 0 r 0 r 0 r AREN rw BSY rh BEN rw BE rwh PEN rw PE rwh 0 r PH rw HB rw CIS rw BM rw BC rh REN rw RE rwh TEN rw TE rwh SIS rw MIS rw
SSC Register Overview
Bit 7 6 5 4 3 2 1 0
Addr Register Name
AAH
AAH
ABH
ABH
ACH
TB_VALUE rw RB_VALUE rh BR_VALUE rw BR_VALUE rw
ADH
AEH
AFH
3.2.4.13 MultiCAN Registers
The MultiCAN SFRs can be accessed in the standard memory area (RMAP = 0). Table 16
RMAP = 0 D8H ADCON Reset: 00H CAN Address/Data Control Register ADL Reset: 00H CAN Address Register Low ADH Reset: 00H CAN Address Register High Bit Field Type Bit Field Type Bit Field Type V3 rw CA9 rwh V2 rw CA8 rwh 0 r V1 rw CA7 rwh V0 rw CA6 rwh CA5 rwh CA13 rwh AUAD rw CA4 rwh CA12 rwh BSY rh CA3 rwh CA11 rwh RWEN rw CA2 rwh CA10 rwh
CAN Register Overview
Bit 7 6 5 4 3 2 1 0
Addr Register Name
D9H
DAH
Data Sheet
46
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 16
DBH
CAN Register Overview (cont'd)
Bit
Bit Field Type Bit Field Type Bit Field Type Bit Field Type
Addr Register Name
DATA0 Reset: 00H CAN Data Register 0 DATA1 Reset: 00H CAN Data Register 1 DATA2 Reset: 00H CAN Data Register 2 DATA3 Reset: 00H CAN Data Register 3
7
6
5
4
CD rwh CD rwh CD rwh CD rwh
3
2
1
0
DCH
DDH
DEH
3.2.4.14 OCDS Registers
The OCDS SFRs can be accessed in the mapped memory area (RMAP = 1). Table 17
RMAP = 1 E9H MMCR2 Reset: 1UH Monitor Mode Control 2 Register MMCR Reset: 00H Monitor Mode Control Register Bit Field Type Bit Field Type F2H MMSR Reset: 00H Monitor Mode Status Register Bit Field Type F3H MMBPCR Reset: 00H Breakpoints Control Register Bit Field Type F4H MMICR Reset: 00H Monitor Mode Interrupt Control Register MMDR Reset: 00H Monitor Mode Data Transfer Register Receive HWBPSR Reset: 00H Hardware Breakpoints Select Register HWBPDR Reset: 00H Hardware Breakpoints Data Register MMWR1 Reset: 00H Monitor Work Register 1 Bit Field Type Bit Field Type STMO DE rw MEXIT _P w MBCA M rw SWBC rw DVEC T rwh DRET R rwh EXBC rw MEXIT rwh MBCIN rwh DSUS P rw 0 r EXBF rwh MBCO N rwh MSTE P rw SWBF rwh ALTDI rw MRAM S_P w HWB3 F rwh MMEP rwh MRAM S rwh HWB2 F rwh HWB1 C rw MMUI E_P w MMRR rh MMUI E rw RRIE_ P w MMOD E rh TRF rh HWB1 F rwh JENA rh RRF rh HWB0 F rwh
OCDS Register Overview
Bit 7 6 5 4 3 2 1 0
Addr Register Name
F1H
HWB3C rw COMR ST rwh
HWB2C rw MSTS EL rh
HWB0C rw RRIE rw
F5H
F6H
Bit Field Type Bit Field Type Bit Field Type
0 r
BPSEL _P w HWBPxx rw MMWR1 rw
BPSEL rw
F7H
EBH
Data Sheet
47
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 17
ECH
OCDS Register Overview (cont'd)
Bit
Bit Field Type
Addr Register Name
MMWR2 Reset: 00H Monitor Work Register 2
7
6
5
4
rw
3
2
1
0
MMWR2
Data Sheet
48
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.3
Flash Memory
The Flash memory provides an embedded user-programmable non-volatile memory, allowing fast and reliable storage of user code and data. It is operated from a single 2.5 V supply from the Embedded Voltage Regulator (EVR) and does not require additional programming or erasing voltage. The sectorization of the Flash memory allows each sector to be erased independently. Features * * * * * * * * * * * * * In-System Programming (ISP) via UART In-Application Programming (IAP) Error Correction Code (ECC) for dynamic correction of single-bit errors Background program and erase operations for CPU load minimization Support for aborting erase operation Minimum program width1) of 32-byte for D-Flash and 64-byte for P-Flash 1-sector minimum erase width 1-byte read access Flash is delivered in erased state (read all zeros) Operating supply voltage: 2.5 V 7.5 % Read access time: 3 x tCCLK = 125 ns2) Program time: 248256 / fSYS = 2.6 ms3) Erase time: 9807360 / fSYS = 102 ms3)
1) P-Flash: 64-byte wordline can only be programmed once, i.e., one gate disturb allowed. D-Flash: 32-byte wordline can be programmed twice, i.e., two gate disturbs allowed. 2) Values shown here are typical values. fsys = 96 MHz 7.5% (fCCLK = 24 MHz 7.5 %) is the maximum frequency range for Flash read access. 3) Values shown here are typical values. fsys = 96 MHz 7.5% is the only frequency range for Flash programming and erasing. fsysmin is used for obtaining the worst case timing.
Data Sheet
49
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 18 shows the Flash data retention and endurance targets. Table 18 Flash Data Retention and Endurance (Operating Conditions apply) Size 125 C Program Flash 20 years 20 years Data Flash 20 years 5 years 2 years 2 years 1,000 cycles3) 10,000 cycles3) 70,000 cycles
3) 3)
Retention Endurance1)
Remarks
TA = -40 to
140 C
TA = 125 to
1,000 cycles 1,000 cycles
up to 32 Kbytes2) up to 24 Kbytes2) 4 Kbytes 1 Kbyte 512 bytes 128 bytes 1 Kbyte 256 bytes 128 bytes 32 bytes
for 32-Kbyte Variant for 24-Kbyte Variant
100,000 cycles
1) One cycle refers to the programming of all wordlines in a sector and erasing of sector. The Flash endurance data specified in Table 18 is valid only if the following conditions are fulfilled: - the maximum number of erase cycles per Flash sector must not exceed 100,000 cycles. - the maximum number of erase cycles per Flash bank must not exceed 300,000 cycles. - the maximum number of program cycles per Flash bank must not exceed 2,500,000 cycles. 2) If no Flash is used for data, the Program Flash size can be up to the maximum Flash size available in the device variant. Having more Data Flash will mean less Flash is available for Program Flash. 3) For TA = 125 to 140C, refers to programming of second 8 bytes (bytes 8 to 15) per WL.
3.3.1
Flash Bank Sectorization
The SAA-XC886 product family offers Flash devices with either 24 Kbytes or 32 Kbytes of embedded Flash memory. Each Flash device consists of Program Flash (P-Flash) and Data Flash (D-Flash) bank(s) with different sectorization shown in Figure 10. Both types can be used for code and data storage. The label "Data" neither implies that the D-Flash is mapped to the data memory region, nor that it can only be used for data storage. It is used to distinguish the different Flash bank sectorizations. The 32-Kbyte Flash device consists of 6 P-Flash and 2 D-Flash banks, while the 24Kbyte Flash device consists of also of 6 P-Flash banks but with the upper 2 banks only 2 Kbytes each, and only 1 D-Flash bank. The P-Flash banks are always grouped in pairs. As such, the P-Flash banks are also sometimes referred to as P-Flash bank pair. Each sector in a P-Flash bank is grouped with the corresponding sector from the other bank within a bank pair to form a P-Flash bank pair sector.
Data Sheet
50
V1.1, 2010-08
SAA-XC886CLM
Functional Description
Sector 2: 128-byte Sector 1: 128-byte
Sector Sector Sector Sector
9: 8: 7: 6:
128-byte 128-byte 128-byte 128-byte
Sector 5: 256-byte Sector 4: 256-byte Sector 3: 512-byte Sector 0: 3.75-Kbyte Sector 2: 512-byte Sector 1: 1-Kbyte
Sector 0: 1-Kbyte P-Flash D-Flash
Figure 10
Flash Bank Sectorization
The internal structure of each Flash bank represents a sector architecture for flexible erase capability. The minimum erase width is always a complete sector, and sectors can be erased separately or in parallel. Contrary to standard EPROMs, erased Flash memory cells contain 0s. The D-Flash bank is divided into more physical sectors for extended erasing and reprogramming capability; even numbers for each sector size are provided to allow greater flexibility and the ability to adapt to a wide range of application requirements.
3.3.2
Parallel Read Access of P-Flash
To enhance system performance, the P-Flash banks are configured for parallel read to allow two bytes of linear code to be read in 4 x CCLK cycles, compared to 6 x CCLK cycles if serial read is performed. This is achieved by reading two bytes in parallel from a P-Flash bank pair within the 3 x CCLK cycles access time and storing them in a cache. Subsequent read from the cache by the CPU does not require a wait state and can be completed within 1 x CCLK cycle. The result is the average instruction fetch time from the P-Flash banks is reduced and thus, the MIPS (Mega Instruction Per Second) of the system is increased. However, if the parallel read feature is not desired due to certain timing constraints, it can be disabled by calling the parallel read disable subroutine.
Data Sheet
51
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.3.3
Flash Programming Width
For the P-Flash banks, a programmed wordline (WL) must be erased before it can be reprogrammed as the Flash cells can only withstand one gate disturb. This means that the entire sector containing the WL must be erased since it is impossible to erase a single WL. For the D-Flash bank, the same WL can be programmed twice before erasing is required as the Flash cells are able to withstand two gate disturbs. This means if the number of data bytes that needs to be written is smaller than the 32-byte minimum programming width, the user can opt to program this number of data bytes (x; where x can be any integer from 1 to 31) first and program the remaining bytes (32 - x) later. Hence, it is possible to program the same WL, for example, with 16 bytes of data two times (see Figure 11)
32 bytes (1 WL) 0000 ..... 0000 H 0000 ..... 0000 H
Program 1
16 bytes 0000 ..... 0000 H
16 bytes 1111 ..... 1111 H
0000 ..... 0000 H
1111 ..... 1111 H
Program 2
1111 ..... 0000 H
0000 ..... 0000 H
1111 ..... 0000 H
1111 ..... 1111 H
Note: A Flash memory cell can be programmed from 0 to 1, but not from 1 to 0.
Flash memory cells
32-byte write buffers
Figure 11
D-Flash Programming
Note: When programming a D-Flash WL the second time, the previously programmed Flash memory cells (whether 0s or 1s) should be reprogrammed with 0s to retain its original contents and to prevent "over-programming".
Data Sheet
52
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.4
Interrupt System
The XC800 Core supports one non-maskable interrupt (NMI) and 14 maskable interrupt requests. In addition to the standard interrupt functions supported by the core, e.g., configurable interrupt priority and interrupt masking, the SAA-XC886 interrupt system provides extended interrupt support capabilities such as the mapping of each interrupt vector to several interrupt sources to increase the number of interrupt sources supported, and additional status registers for detecting and determining the interrupt source.
3.4.1
Interrupt Source
Figure 12 to Figure 16 give a general overview of the interrupt sources and nodes, and their corresponding control and status flags.
WDT Overflow
FNMIWDT NMIISR.0 NMIWDT NMICON.0
PLL Loss of Lock
FNMIPLL NMIISR.1 NMIPLL NMICON.1
Flash Operation Complete
FNMIFLASH NMIISR.2 NMIFLASH >=1 Non Maskable Interrupt
VDD Pre-Warning
FNMIVDD NMIISR.4 NMIVDD NMICON.4
0073
H
VDDP Pre-Warning
FNMIVDDP NMIISR.5 NMIVDDP NMICON.5
Flash ECC Error
FNMIECC NMIISR.6 NMIECC NMICON.6
Figure 12
Non-Maskable Interrupt Request Sources
Data Sheet
53
V1.1, 2010-08
SAA-XC886CLM
Functional Description
Highest
Timer 0 Overflow
TF0 TCON.5 ET0 IEN0.1 000B H IP.1/ IPH.1
Lowest Priority Level
Timer 1 Overflow
TF1 TCON.7 ET1 IEN0.3 001B H IP.3/ IPH.3
UART Receive UART Transmit
RI SCON.0 TI SCON.1 >=1 ES IEN0.4 0023 H IP.4/ IPH.4
P o l l i n g S e q u e n c e
IE0 EINT0 IT0 TCON.0
EXINT0 EXICON0.0/1
TCON.1
EX0 IEN0.0
0003
H
IP.0/ IPH.0
IE1 EINT1 IT1 TCON.2
EXINT1 EXICON0.2/3
TCON.3
EX1 IEN0.2
0013
H
IP.2/ IPH.2
EA IEN0.7
Bit-addressable Request flag is cleared by hardware
Figure 13
Interrupt Request Sources (Part 1)
Data Sheet
54
V1.1, 2010-08
SAA-XC886CLM
Functional Description
Highest
Timer 2 Overflow TF2
T2_T2CON.7
>=1 T2EX
EXEN2 EDGES EL T2_T2MOD.5 T2_T2CON.3
Lowest Priority Level
EXF2
T2_T2CON.6
Normal Divider Overflow
NDOV
>=1
FDCON.2
End of Synch Byte Synch Byte Error
EOFSYN
FDCON.4
ET2 >=1
SYNEN
002B
H
IEN0.5
IP.5/ IPH.5
ERRSYN
FDCON.5
MultiCAN_0
CANSRC0
IRCON2.0
P o l l i n g S e q u e n c e
ADC_0
ADCSR0
IRCON1.3
ADC_1
ADCSR1
IRCON1.4
>=1 EADC IEN1.0 0033 H IP1.0/ IPH1.0
MultiCAN_1
CANSRC1
IRCON1.5
MultiCAN_2
CANSRC2
IRCON1.6
Bit-addressable Request flag is cleared by hardware
EA IEN0.7
Figure 14
Interrupt Request Sources (Part 2)
Data Sheet
55
V1.1, 2010-08
SAA-XC886CLM
Functional Description
Highest Lowest Priority Level
EIR
IRCON1.0
SSC_EIR
SSC_TIR
TIR
IRCON1.1
>=1 ESSC IEN1.1 003B H IP1.1/ IPH1.1
SSC_RIR
RIR
IRCON1.2
EINT2
EXINT2 IRCON0.2
EXINT2 EXICON0.4/5
P o l l i n g S e q u e n c e
RI UART1 UART1_SCON.0 TI UART1_SCON.1 Timer 21 Overflow TF2
T21_T2CON.7
>=1
>=1 EX2 >=1 IEN1.2
0043
H
T21EX
EXF2
EXEN2 T21_T2CON.6
IP1.2/ IPH1.2
EDGES EL T21_T2MOD.5
T21_T2CON.3
Normal Divider Overflow Cordic
NDOV
UART1_FDCON.2
EOC
CDSTATC.2
MDU_0
IRDY
MDUSTAT.0
MDU_1
IERR
MDUSTAT.1
EA IEN0.7
Bit-addressable Request flag is cleared by hardware
Figure 15
Interrupt Request Sources (Part 3)
Data Sheet
56
V1.1, 2010-08
SAA-XC886CLM
Functional Description
Highest
EINT3
EXINT3 IRCON0.3
Lowest Priority Level
EXINT3 EXICON0.6/7
EINT4
EXINT4 IRCON0.4
EXINT3 EXICON1.0/1
>=1 EINT5
EXINT5 IRCON0.5
P o l l i n g
EXM IEN1.3 004B H IP1.3/ IPH1.3
EXINT5 EXICON1.2/3
EINT6
EXINT6 IRCON0.6
S e q u e n c e
EXINT6 EXICON1.4/5
MultiCAN_3
CANSRC3
IRCON2.4
Bit-addressable Request flag is cleared by hardware
EA IEN0.7
Figure 16
Interrupt Request Sources (Part 4)
Data Sheet
57
V1.1, 2010-08
SAA-XC886CLM
Functional Description
Highest Lowest
CCU6 interrupt node 0 MultiCAN_4
CCU6SR0
IRCON3.0
Priority Level
>=1 ECCIP0 IEN1.4 0053 H IP1.4/ IPH1.4
CANSRC4
IRCON3.1
CCU6 interrupt node 1 MultiCAN_5
CCU6SR1
IRCON3.4
>=1 ECCIP1 IEN1.5 005B H IP1.5/ IPH1.5
P o l l i n g S e q u e n c e
CANSRC5
IRCON3.5
CCU6 interrupt node 2
CCU6SR2
IRCON4.0
>=1 ECCIP2 IEN1.6
0063
MutliCAN_6
CANSRC6
IRCON4.1
H
IP1.6/ IPH1.6
CCU6 interrupt node 3 MultiCAN_7
CCU6SRC3
IRCON4.4
>=1 ECCIP3 IEN1.7
CANSRC7
IRCON4.5
006B
H
IP1.7/ IPH1.7
EA IEN0.7 Bit-addressable Request flag is cleared by hardware
Figure 17
Interrupt Request Sources (Part 5)
Data Sheet
58
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.4.2
Interrupt Source and Vector
Each interrupt event source has an associated interrupt vector address for the interrupt node it belongs to. This vector is accessed to service the corresponding interrupt node request. The interrupt service of each interrupt source can be individually enabled or disabled via an enable bit. The assignment of the SAA-XC886 interrupt sources to the interrupt vector address and the corresponding interrupt node enable bits are summarized in Table 19. Table 19 Interrupt Source NMI Interrupt Vector Addresses Vector Address 0073H Assignment for SAAXC886 Watchdog Timer NMI PLL NMI Flash NMI VDDC Prewarning NMI VDDP Prewarning NMI Flash ECC NMI XINTR0 XINTR1 XINTR2 XINTR3 XINTR4 XINTR5 0003H 000BH 0013H 001BH 0023H 002BH External Interrupt 0 Timer 0 External Interrupt 1 Timer 1 UART T2 UART Fractional Divider (Normal Divider Overflow) MultiCAN Node 0 LIN Enable Bit NMIWDT NMIPLL NMIFLASH NMIVDD NMIVDDP NMIECC EX0 ET0 EX1 ET1 ES ET2 IEN0 SFR NMICON
Data Sheet
59
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 19 Interrupt Source XINTR6 XINTR7 XINTR8 Interrupt Vector Addresses (cont'd) Vector Address 0033H 003BH 0043H Assignment for SAAXC886 MultiCAN Nodes 1 and 2 ADC[1:0] SSC External Interrupt 2 T21 CORDIC UART1 UART1 Fractional Divider (Normal Divider Overflow) MDU[1:0] XINTR9 004BH External Interrupt 3 External Interrupt 4 External Interrupt 5 External Interrupt 6 MultiCAN Node 3 XINTR10 XINTR11 XINTR12 XINTR13 0053H 005BH 0063H 006BH CCU6 INP0 MultiCAN Node 4 CCU6 INP1 MultiCAN Node 5 CCU6 INP2 MultiCAN Node 6 CCU6 INP3 MultiCAN Node 7 ECCIP3 ECCIP2 ECCIP1 ECCIP0 EXM ESSC EX2 Enable Bit EADC SFR IEN1
Data Sheet
60
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.4.3
Interrupt Priority
An interrupt that is currently being serviced can only be interrupted by a higher-priority interrupt, but not by another interrupt of the same or lower priority. Hence, an interrupt of the highest priority cannot be interrupted by any other interrupt request. If two or more requests of different priority levels are received simultaneously, the request of the highest priority is serviced first. If requests of the same priority are received simultaneously, then an internal polling sequence determines which request is serviced first. Thus, within each priority level, there is a second priority structure determined by the polling sequence shown in Table 20. Table 20 Source Non-Maskable Interrupt (NMI) External Interrupt 0 Timer 0 Interrupt External Interrupt 1 Timer 1 Interrupt UART Interrupt Timer 2,UART Normal Divider Overflow, MultiCAN, LIN Interrupt ADC, MultiCAN Interrupt SSC Interrupt Priority Structure within Interrupt Level Level (highest) 1 2 3 4 5 6 7 8
External Interrupt 2, Timer 21, UART1, UART1 9 Normal Divider Overflow, MDU, CORDIC Interrupt External Interrupt [6:3], MultiCAN Interrupt 10 CCU6 Interrupt Node Pointer 0, MultiCAN interrupt 11 CCU6 Interrupt Node Pointer 1, MultiCAN Interrupt 12 CCU6 Interrupt Node Pointer 2, MultiCAN Interrupt 13 CCU6 Interrupt Node Pointer 3, MultiCAN Interrupt 14
Data Sheet
61
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.5
Parallel Ports
The SAA-XC886 has 34 port pins organized into five parallel ports, Port 0 (P0) to Port 4 (P4). Each pin has a pair of internal pull-up and pull-down devices that can be individually enabled or disabled. Ports P0, P1, P3 and P4 are bidirectional and can be used as general purpose input/output (GPIO) or to perform alternate input/output functions for the on-chip peripherals. When configured as an output, the open drain mode can be selected. Port P2 is an input-only port, providing general purpose input functions, alternate input functions for the on-chip peripherals, and also analog inputs for the Analog-to-Digital Converter (ADC). Bidirectional Port Features * * * * * Configurable pin direction Configurable pull-up/pull-down devices Configurable open drain mode Transfer of data through digital inputs and outputs (general purpose I/O) Alternate input/output for on-chip peripherals
Input Port Features * * * * * Configurable input driver Configurable pull-up/pull-down devices Receive of data through digital input (general purpose input) Alternate input for on-chip peripherals Analog input for ADC module
Data Sheet
62
V1.1, 2010-08
SAA-XC886CLM
Functional Description Figure 18 shows the structure of a bidirectional port pin.
Internal Bus
Px_PUDSEL Pull-up/Pull-down Select Register Px_PUDEN Pull-up/Pull-down Enable Register Px_OD Open Drain Control Register
Px_DIR Direction Register
Px_ALTSEL0 Alternate Select Register 0
VDDP
Px_ALTSEL1 Alternate Select Register 1
AltDataOut 3 AltDataOut 2 AltDataOut1
11 10 01 00
enable
Pull Up Device
enable
Output Driver
Pin
Px_Data Data Register
Out In
enable
Input Driver
AltDataIn
Schmitt Trigger
enable
Pull Down Device
Pad
Figure 18
General Structure of Bidirectional Port
Data Sheet
63
V1.1, 2010-08
SAA-XC886CLM
Functional Description Figure 19 shows the structure of an input-only port pin.
Internal Bus
Px_PUDSEL Pull-up/Pull-down Select Register Px_PUDEN Pull-up/Pull-down Enable Register Px_DIR Direction Register
VDDP
enable enable Input Driver
Pull Up Device Pin
Px_DATA Data Register
In
Schmitt Trigger
AltDataIn AnalogIn
enable
Pull Down Device
Pad
Figure 19
General Structure of Input Port
Data Sheet
64
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.6
* *
Power Supply System with Embedded Voltage Regulator
The SAA-XC886 microcontroller requires two different levels of power supply: 5.0 V for the Embedded Voltage Regulator (EVR) and Ports 2.5 V for the core, memory, on-chip oscillator, and peripherals
Figure 20 shows the SAA-XC886 power supply system. A power supply of 5.0 V must be provided from the external power supply pin. The 2.5 V power supply for the logic is generated by the EVR. The EVR helps to reduce the power consumption of the whole chip and the complexity of the application board design. The EVR consists of a main voltage regulator and a low power voltage regulator. In active mode, both voltage regulators are enabled. In power-down mode, the main voltage regulator is switched off, while the low power voltage regulator continues to function and provide power supply to the system with low power consumption.
CPU & Memory
On-chip OSC
Peripheral logic ADC
V D D C (2.5V)
FLASH PLL
GPIO Ports (P0-P5)
EVR
XTAL1& XTAL2
VD D P (5.0V) VSSP
Figure 20
SAA-XC886 Power Supply System
EVR Features * * * * * Input voltage (VDDP): 5.0 V Output voltage (VDDC): 2.5 V 7.5% Low power voltage regulator provided in power-down mode VDDC and VDDP prewarning detection VDDC brownout detection
Data Sheet
65
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.7
Reset Control
The SAA-XC886 has five types of reset: power-on reset, hardware reset, watchdog timer reset, power-down wake-up reset, and brownout reset. When the SAA-XC886 is first powered up, the status of certain pins (see Table 22) must be defined to ensure proper start operation of the device. At the end of a reset sequence, the sampled values are latched to select the desired boot option, which cannot be modified until the next power-on reset or hardware reset. This guarantees stable conditions during the normal operation of the device. In order to power up the system properly, the external reset pin RESET must be asserted until VDDC reaches 0.9*VDDC. The delay of external reset can be realized by an external capacitor at RESET pin. This capacitor value must be selected so that VRESET reaches 0.4 V, but not before VDDC reaches 0.9* VDDC. A typical application example is shown in Figure 21. The VDDP capacitor value is 100 nF while the VDDC capacitor value is 220 nF. The capacitor connected to RESET pin is 100 nF. Typically, the time taken for VDDC to reach 0.9*VDDC is less than 50 s once VDDP reaches 2.3V. Hence, based on the condition that 10% to 90% VDDP (slew rate) is less than 500 s, the RESET pin should be held low for 500 s typically. See Figure 22.
VIN
VR
5V
100nF
220nF
VSSP typ. 100nF RESET
VDDP
VDDC
VSSC
EVR 30k XC886
Figure 21 Reset Circuitry
Data Sheet
66
V1.1, 2010-08
SAA-XC886CLM
Functional Description
Voltage 5V 2.5V 2.3V 0.9*VDDC VDDP VDDC
Time Voltage 5V RESET with capacitor
< 0.4V 0V typ. < 50s
Time
Figure 22
VDDP, VDDC and VRESET during Power-on Reset
The second type of reset in SAA-XC886 is the hardware reset. This reset function can be used during normal operation or when the chip is in power-down mode. A reset input pin RESET is provided for the hardware reset. The Watchdog Timer (WDT) module is also capable of resetting the device if it detects a malfunction in the system. Another type of reset that needs to be detected is a reset while the device is in power-down mode (wake-up reset). While the contents of the static RAM are undefined after a power-on reset, they are well defined after a wake-up reset from power-down mode.
Data Sheet
67
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.7.1
Module Reset Behavior
Table 21 lists the functions of the SAA-XC886 and the various reset types that affect these functions. The symbol "" signifies that the particular function is reset to its default state. Table 21 Module/ Function CPU Core Peripherals On-Chip Static RAM Oscillator, PLL Port Pins EVR Effect of Reset on Device Functions Wake-Up Reset Watchdog Reset Hardware Reset Power-On Reset Brownout Reset
Not affected, Not affected, Not affected, Affected, un- Affected, unReliable Reliable Reliable reliable reliable The voltage regulator is switched on Disabled Not affected
Not affected
FLASH NMI
Disabled

3.7.2
Booting Scheme
When the SAA-XC886 is reset, it must identify the type of configuration with which to start the different modes once the reset sequence is complete. Thus, boot configuration information that is required for activation of special modes and conditions needs to be applied by the external world through input pins. After power-on reset or hardware reset, the pins MBC, TMS and P0.0 collectively select the different boot options. Table 22 shows the available boot options in the SAA-XC886. Table 22 MBC 1 0 0 1 TMS 0 0 1 1 SAA-XC886 Boot Selection P0.0 X X 0 0 Type of Mode PC Start Value User Mode1); on-chip OSC/PLL non-bypassed 0000H BSL Mode; on-chip OSC/PLL non-bypassed2) 0000H OCDS Mode; on-chip OSC/PLL nonbypassed User (JTAG) Mode3); on-chip OSC/PLL nonbypassed (normal)
68
0000H 0000H
Data Sheet
V1.1, 2010-08
SAA-XC886CLM
Functional Description
1) BSL mode is automatically entered if no valid password is installed and data at memory address 0000H equals zero. 2) OSC is bypassed in MultiCAN BSL mode 3) Normal user mode with standard JTAG (TCK,TDI,TDO) pins for hot-attach purpose.
Note: The boot options are valid only with the default set of UART and JTAG pins.
3.8
Clock Generation Unit
The Clock Generation Unit (CGU) allows great flexibility in the clock generation for the SAA-XC886. The power consumption is indirectly proportional to the frequency, whereas the performance of the microcontroller is directly proportional to the frequency. During user program execution, the frequency can be programmed for an optimal ratio between performance and power consumption. Therefore the power consumption can be adapted to the actual application state. Features * * * * * Phase-Locked Loop (PLL) for multiplying clock source by different factors PLL Base Mode Prescaler Mode PLL Mode Power-down mode support
The CGU consists of an oscillator circuit and a PLL. In the SAA-XC886, the oscillator can be from either of these two sources: the on-chip oscillator (9.6 MHz) or the external oscillator (4 MHz to 12 MHz). The term "oscillator" is used to refer to both on-chip oscillator and external oscillator, unless otherwise stated. After the reset, the on-chip oscillator will be used by default.The external oscillator can be selected via software. In addition, the PLL provides a fail-safe logic to perform oscillator run and loss-of-lock detection. This allows emergency routines to be executed for system recovery or to perform system shut down.
Data Sheet
69
V1.1, 2010-08
SAA-XC886CLM
Functional Description
osc fail detect lock detect
OSCR
LOCK
OSC
fosc
P:1
fp fn
PLL core
fvco
K:1
fsys
N:1
PLLBYP
OSCDISC
NDIV
VCOBYP
Figure 23
CGU Block Diagram
PLL Base Mode When the oscillator is disconnected from the PLL, the system clock is derived from the VCO base (free running) frequency clock (Table 24) divided by the K factor.
1 f SYS = f VCObase x --K
(3.1) Prescaler Mode (VCO Bypass Operation) In VCO bypass operation, the system clock is derived from the oscillator clock, divided by the P and K factors.
1 f SYS = f OSC x ------------PxK
(3.2)
Data Sheet
70
V1.1, 2010-08
SAA-XC886CLM
Functional Description PLL Mode The system clock is derived from the oscillator clock, multiplied by the N factor, and divided by the P and K factors. Both VCO bypass and PLL bypass must be inactive for this PLL mode. The PLL mode is used during normal system operation.
N f SYS = f OSC x ------------PxK
(3.3) System Frequency Selection For the SAA-XC886, the value of P is fixed to 1. In order to obtain the required fsys, the value of N and K can be selected by bits NDIV and KDIV respectively for different oscillator inputs. The output frequency must always be configured for 96 MHz. Table 23 provides examples on how fsys = 96 MHz can be obtained for the different oscillator sources. Table 23 Oscillator On-chip External System frequency (fsys = 96 MHz) Fosc 9.6 MHz 8 MHz 6 MHz 4 MHz N 20 24 32 48 P 1 1 1 1 K 2 2 2 2 Fsys 96 MHz 96 MHz 96 MHz 96 MHz
Data Sheet
71
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 24 shows the VCO range for the SAA-XC886. Table 24 VCO Range
fVCOmin
150 100
fVCOmax
200 150
fVCOFREEmin
20 10
fVCOFREEmax
80 80
Unit MHz MHz
3.8.1
Recommended External Oscillator Circuits
The oscillator circuit, a Pierce oscillator, is designed to work with both, an external crystal oscillator or an external stable clock source. It basically consists of an inverting amplifier and a feedback element with XTAL1 as input, and XTAL2 as output. When using a crystal, a proper external oscillator circuitry must be connected to both pins, XTAL1 and XTAL2. The crystal frequency can be within the range of 4 MHz to 12 MHz. Additionally, it is necessary to have two load capacitances CX1 and CX2, and depending on the crystal type, a series resistor RX2, to limit the current. A test resistor RQ may be temporarily inserted to measure the oscillation allowance (negative resistance) of the oscillator circuitry. RQ values are typically specified by the crystal vendor. The CX1 and CX2 values shown in Figure 24 can be used as starting points for the negative resistance evaluation and for non-productive systems. The exact values and related operating range are dependent on the crystal frequency and have to be determined and optimized together with the crystal vendor using the negative resistance method. Oscillation measurement with the final target system is strongly recommended to verify the input amplitude at XTAL1 and to determine the actual oscillation allowance (margin negative resistance) for the oscillator-crystal system. When using an external clock signal, the signal must be connected to XTAL1. XTAL2 is left open (unconnected). The oscillator can also be used in combination with a ceramic resonator. The final circuitry must also be verified by the resonator vendor. Figure 24 shows the recommended external oscillator circuitries for both operating modes, external crystal mode and external input clock mode.
Data Sheet
72
V1.1, 2010-08
SAA-XC886CLM
Functional Description
XTAL1 4 - 12 MHz XC886 Oscillator
fOSC
External Clock Signal
XTAL1 XC886 Oscillator XTAL2
fOSC
RQ
RX2
XTAL2
CX1
CX2 VSS
1)
Fundamental Mode Crystal Crystal Frequency 4 MHz 8 MHz 10 MHz 12 MHz
VSS
CX1 , CX 2 33 pF 18 pF 15 pF 12 pF RX2 0 0 0 0
1)
1) Note that these are evaluation start values !
Clock_EXOSC
Figure 24
External Oscillator Circuitry
Note: For crystal operation, it is strongly recommended to measure the negative resistance in the final target system (layout) to determine the optimum parameters for the oscillator operation. Please refer to the minimum and maximum values of the negative resistance specified by the crystal supplier.
Data Sheet
73
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.8.2
Clock Management
The CGU generates all clock signals required within the microcontroller from a single clock, fsys. During normal system operation, the typical frequencies of the different modules are as follow: * * * * CPU clock: CCLK, SCLK = 24 MHz Fast clock (used by MultiCAN): FCLK = 24 or 48 MHz Peripheral clock: PCLK = 24 MHz Flash Interface clock: CCLK2 = 48 MHz and CCLK = 24 MHz
In addition, different clock frequencies can be output to pin CLKOUT (P0.0 or P0.7). The clock output frequency, which is derived from the clock output divider (bit COREL), can further be divided by 2 using toggle latch (bit TLEN is set to 1). The resulting output frequency has a 50% duty cycle. Figure 25 shows the clock distribution of the SAAXC886.
FCCFG
CLKREL
FCLK MultiCAN
SD 1 fsys= 96MHz PCLK SCLK /2 CCLK CORE Peripherals
OSC
fosc
PLL
/2 0 COREL TLEN Toggle Latch
CCLK2
N,P,K
FLASH Interface
CLKOUT
COUTS
Figure 25
Clock Generation from fsys
Data Sheet
74
V1.1, 2010-08
SAA-XC886CLM
Functional Description For power saving purposes, the clocks may be disabled or slowed down according to Table 25. Table 25 Idle Slow-down System frequency (fsys = 96 MHz) Action Clock to the CPU is disabled. Clocks to the CPU and all the peripherals are divided by a common programmable factor defined by bit field CMCON.CLKREL. Oscillator and PLL are switched off.
Power Saving Mode
Power-down
Data Sheet
75
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.9
Power Saving Modes
The power saving modes of the SAA-XC886 provide flexible power consumption through a combination of techniques, including: * * * * Stopping the CPU clock Stopping the clocks of individual system components Reducing clock speed of some peripheral components Power-down of the entire system with fast restart capability
After a reset, the active mode (normal operating mode) is selected by default (see Figure 26) and the system runs in the main system clock frequency. From active mode, different power saving modes can be selected by software. They are: * * * Idle mode Slow-down mode Power-down mode
any interrupt & SD=0 set IDLE bit
ACTIVE
EXINT0/RXD pin & SD=0 set PD bit
IDLE
set SD bit
clear SD bit
POWER-DOWN
set IDLE bit any interrupt & SD=1 SLOW-DOWN
set PD bit EXINT0/RXD pin & SD=1
Figure 26
Transition between Power Saving Modes
Data Sheet
76
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.10
Watchdog Timer
The Watchdog Timer (WDT) provides a highly reliable and secure way to detect and recover from software or hardware failures. The WDT is reset at a regular interval that is predefined by the user. The CPU must service the WDT within this interval to prevent the WDT from causing an SAA-XC886 system reset. Hence, routine service of the WDT confirms that the system is functioning properly. This ensures that an accidental malfunction of the SAA-XC886 will be aborted in a user-specified time period. In debug mode, the WDT is default suspended and stops counting. Therefore, there is no need to refresh the WDT during debugging. Features * * * * * 16-bit Watchdog Timer Programmable reload value for upper 8 bits of timer Programmable window boundary Selectable input frequency of fPCLK/2 or fPCLK/128 Time-out detection with NMI generation and reset prewarning activation (after which a system reset will be performed)
The WDT is a 16-bit timer incremented by a count rate of fPCLK/2 or fPCLK/128. This 16-bit timer is realized as two concatenated 8-bit timers. The upper 8 bits of the WDT can be preset to a user-programmable value via a watchdog service access in order to modify the watchdog expire time period. The lower 8 bits are reset on each service access. Figure 27 shows the block diagram of the WDT unit.
WDT Control WDTREL
1:2 MUX f PCLK 1:128
Clear
WDT Low Byte WDT High Byte
Overflow/Time-out Control & Window-boundary control WDTIN
ENWDT Logic ENWDT_P WDTWINB
FNMIWDT WDTRST
.
Figure 27
WDT Block Diagram
Data Sheet
77
V1.1, 2010-08
SAA-XC886CLM
Functional Description If the WDT is not serviced before the timer overflow, a system malfunction is assumed. As a result, the WDT NMI is triggered (assert FNMIWDT) and the reset prewarning is entered. The prewarning period lasts for 30H count, after which the system is reset (assert WDTRST). The WDT has a "programmable window boundary" which disallows any refresh during the WDT's count-up. A refresh during this window boundary constitutes an invalid access to the WDT, causing the reset prewarning to be entered but without triggering the WDT NMI. The system will still be reset after the prewarning period is over. The window boundary is from 0000H to the value obtained from the concatenation of WDTWINB and 00H. After being serviced, the WDT continues counting up from the value ( * 28). The time period for an overflow of the WDT is programmable in two ways: * * The input frequency to the WDT can be selected to be either fPCLK/2 or fPCLK/128 The reload value WDTREL for the high byte of WDT can be programmed in register WDTREL
The period, PWDT, between servicing the WDT and the next overflow can be determined by the following formula:
2 ( 1 + WDTIN x 6 ) x ( 2 16 - WDTREL x 2 8 ) P WDT = --------------------------------------------------------------------------------------------------------f PCLK
(3.4) If the Window-Boundary Refresh feature of the WDT is enabled, the period PWDT between servicing the WDT and the next overflow is shortened if WDTWINB is greater than WDTREL, see Figure 28. This period can be calculated using the same formula by replacing WDTREL with WDTWINB. For this feature to be useful, WDTWINB cannot be smaller than WDTREL.
Data Sheet
78
V1.1, 2010-08
SAA-XC886CLM
Functional Description
Count FFFF H
WDTWINB
WDTREL
time No refresh allowed Refresh allowed
Figure 28
WDT Timing Diagram
Table 26 lists the possible watchdog time ranges that can be achieved using a certain module clock. Some numbers are rounded to 3 significant digits. Table 26 Reload value In WDTREL Watchdog Time Ranges Prescaler for fPCLK 2 (WDTIN = 0) 24 MHz FFH 7FH 00H 21.3 s 2.75 ms 5.46 ms 128 (WDTIN = 1) 24 MHz 1.37 ms 176 ms 350 ms
Data Sheet
79
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.11
Multiplication/Division Unit
The Multiplication/Division Unit (MDU) provides fast 16-bit multiplication, 16-bit and 32-bit division as well as shift and normalize features. It has been integrated to support the SAA-XC886 Core in real-time control applications, which require fast mathematical computations. Features * * * * Fast signed/unsigned 16-bit multiplication Fast signed/unsigned 32-bit divide by 16-bit and 16-bit divide by 16-bit operations 32-bit unsigned normalize operation 32-bit arithmetic/logical shift operations
Table 27 specifies the number of clock cycles used for calculation in various operations. Table 27 Operation Signed 32-bit/16-bit Signed 16-bit/16bit Signed 16-bit x 16-bit Unsigned 32-bit/16-bit Unsigned 16-bit/16-bit Unsigned 16-bit x 16-bit 32-bit normalize 32-bit shift L/R MDU Operation Characteristics Result 32-bit 16-bit 32-bit 32-bit 16-bit 32-bit Remainder 16-bit 16-bit 16-bit 16-bit 33 17 16 32 16 16 No. of shifts + 1 (Max. 32) No. of shifts + 1 (Max. 32) No. of Clock Cycles used for calculation
Data Sheet
80
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.12
CORDIC Coprocessor
The CORDIC Coprocessor provides CPU with hardware support for the solving of circular (trigonometric), linear (multiply-add, divide-add) and hyperbolic functions. Features * Modes of operation - Supports all CORDIC operating modes for solving circular (trigonometric), linear (multiply-add, divide-add) and hyperbolic functions - Integrated look-up tables (LUTs) for all operating modes Circular vectoring mode: Extended support for values of initial X and Y data up to full range of [-215,(215-1)] for solving angle and magnitude Circular rotation mode: Extended support for values of initial Z data up to full range of [-215,(215-1)], representing angles in the range [-,((215-1)/215)] for solving trigonometry Implementation-dependent operational frequency of up to 80 MHz Gated clock input to support disabling of module 16-bit accessible data width - 24-bit kernel data width plus 2 overflow bits for X and Y each - 20-bit kernel data width plus 1 overflow bit for Z - With KEEP bit to retain the last value in the kernel register for a new calculation 16 iterations per calculation: Approximately 41 clock-cycles or less, from set of start (ST) bit to set of end-of-calculation flag, excluding time taken for write and read access of data bytes. Twos complement data processing - Only exception: X result data with user selectable option for unsigned result X and Y data generally accepted as integer or rational number; X and Y must be of the same data form Entries of LUTs are 20-bit signed integers - Entries of atan and atanh LUTs are integer representations (S19) of angles with the scaling such that [-215,(215-1)] represents the range [-,((215-1)/215)] - Accessible Z result data for circular and hyperbolic functions is integer in data form of S15 Emulated LUT for linear function - Data form is 1 integer bit and 15-bit fractional part (1.15) - Accessible Z result data for linear function is rational number with fixed data form of S4.11 (signed 4Q16) Truncation Error - The result of a CORDIC calculation may return an approximation due to truncation of LSBs - Good accuracy of the CORDIC calculated result data, especially in circular mode Interrupt - On completion of a calculation
81 V1.1, 2010-08
* *
* * *
*
* * *
*
*
*
Data Sheet
SAA-XC886CLM
Functional Description - Interrupt enabling and corresponding flag
3.13
UART and UART1
The SAA-XC886 provides two Universal Asynchronous Receiver/Transmitter (UART and UART1) modules for full-duplex asynchronous reception/transmission. Both are also receive-buffered, i.e., they can commence reception of a second byte before a previously received byte has been read from the receive register. However, if the first byte still has not been read by the time reception of the second byte is complete, one of the bytes will be lost. Features * Full-duplex asynchronous modes - 8-bit or 9-bit data frames, LSB first - Fixed or variable baud rate Receive buffered Multiprocessor communication Interrupt generation on the completion of a data transmission or reception
* * *
The UART modules can operate in the four modes shown in Table 28. Table 28 UART Modes Baud Rate
Operating Mode Mode 0: 8-bit shift register Mode 1: 8-bit shift UART Mode 2: 9-bit shift UART Mode 3: 9-bit shift UART
fPCLK/2
Variable
fPCLK/32 or fPCLK/641)
Variable
1) For UART1 module, the baud rate is fixed at fPCLK/64.
There are several ways to generate the baud rate clock for the serial port, depending on the mode in which it is operating. In mode 0, the baud rate for the transfer is fixed at fPCLK/2. In mode 2, the baud rate is generated internally based on the UART input clock and can be configured to eitherfPCLK/32 or fPCLK/64. For UART1 module, only fPCLK/64 is available. The variable baud rate is set by the underflow rate on the dedicated baud-rate generator. For UART module, the variable baud rate alternatively can be set by the overflow rate on Timer 1.
3.13.1
Baud-Rate Generator
Both UART modules have their own dedicated baud-rate generator, which is based on a programmable 8-bit reload value, and includes divider stages (i.e., prescaler and
Data Sheet
82
V1.1, 2010-08
SAA-XC886CLM
Functional Description fractional divider) for generating a wide range of baud rates based on its input clock fPCLK, see Figure 29.
Fractional Divider
FDSTEP 1 FDM 1 0 FDEN&FDM
8-Bit Reload Value
Adder
fDIV
0
00 01 0 1
8-Bit Baud Rate Timer
fBR
FDEN
FDRES
fMOD (overflow)
11 10
R fPCLK
Prescaler
fDIV
clk 11 10 01 `0' 00 NDOV
Figure 29
Baud-rate Generator Circuitry
The baud rate timer is a count-down timer and is clocked by either the output of the fractional divider (fMOD) if the fractional divider is enabled (FDCON.FDEN = 1), or the output of the prescaler (fDIV) if the fractional divider is disabled (FDEN = 0). For baud rate generation, the fractional divider must be configured to fractional divider mode (FDCON.FDM = 0). This allows the baud rate control run bit BCON.R to be used to start or stop the baud rate timer. At each timer underflow, the timer is reloaded with the 8-bit reload value in register BG and one clock pulse is generated for the serial channel. Enabling the fractional divider in normal divider mode (FDEN = 1 and FDM = 1) stops the baud rate timer and nullifies the effect of bit BCON.R. See Section 3.14. The baud rate (fBR) value is dependent on the following parameters: * * * Input clock fPCLK Prescaling factor (2BRPRE) defined by bit field BRPRE in register BCON Fractional divider (STEP/256) defined by register FDSTEP (to be considered only if fractional divider is enabled and operating in fractional divider mode) 8-bit reload value (BR_VALUE) for the baud rate timer defined by register BG
*
Data Sheet
83
V1.1, 2010-08
SAA-XC886CLM
Functional Description The following formulas calculate the final baud rate without and with the fractional divider respectively:
f PCLK BRPRE baud rate = ----------------------------------------------------------------------------------- where 2 x ( BR_VALUE + 1 ) > 1 BRPRE 16 x 2 x ( BR_VALUE + 1 )
(3.5)
f PCLK STEP baud rate = ------------------------------------------------------------------------------------ x -------------BRPRE 256 16 x 2 x ( BR_VALUE + 1 )
(3.6) The maximum baud rate that can be generated is limited to fPCLK/32. Hence, for a module clock of 24 MHz, the maximum achievable baud rate is 0.75 MBaud. Standard LIN protocol can support a maximum baud rate of 20 kHz, the baud rate accuracy is not critical and the fractional divider can be disabled. Only the prescaler is used for auto baud rate calculation. For LIN fast mode, which supports the baud rate of 20 kHz to 115.2 kHz, the higher baud rates require the use of the fractional divider for greater accuracy. Table 29 lists the various commonly used baud rates with their corresponding parameter settings and deviation errors. The fractional divider is disabled and a module clock of 24 MHz is used. Table 29 Baud rate 19.2 kBaud 9600 Baud 4800 Baud 2400 Baud Typical Baud rates for UART with Fractional Divider disabled Prescaling Factor (2BRPRE) 1 (BRPRE=000B) 1 (BRPRE=000B) 2 (BRPRE=001B) 4 (BRPRE=010B) Reload Value (BR_VALUE + 1) 78 (4EH) 156 (9CH) 156 (9CH) 156 (9CH) Deviation Error 0.17 % 0.17 % 0.17 % 0.17 %
The fractional divider allows baud rates of higher accuracy (lower deviation error) to be generated. Table 30 lists the resulting deviation errors from generating a baud rate of 115.2 kHz, using different module clock frequencies. The fractional divider is enabled (fractional divider mode) and the corresponding parameter settings are shown.
Data Sheet
84
V1.1, 2010-08
SAA-XC886CLM
Functional Description Table 30 Deviation Error for UART with Fractional Divider enabled Prescaling Factor Reload Value STEP (2BRPRE) (BR_VALUE + 1) 1 1 1 1 10 (AH) 6 (6H) 4 (4H) 3 (3H) 197 (C5H) 236 (ECH) 236 (ECH) 236 (ECH) Deviation Error +0.20 % +0.03 % +0.03 % +0.03 %
fPCLK
24 MHz 12 MHz 8 MHz 6 MHz
3.13.2
Baud Rate Generation using Timer 1
In UART modes 1 and 3 of UART module, Timer 1 can be used for generating the variable baud rates. In theory, this timer could be used in any of its modes. But in practice, it should be set into auto-reload mode (Timer 1 mode 2), with its high byte set to the appropriate value for the required baud rate. The baud rate is determined by the Timer 1 overflow rate and the value of SMOD as follows:
2 x f PCLK Mode 1, 3 baud rate = ---------------------------------------------------32 x 2 x ( 256 - TH1 )
SMOD
(3.7)
3.14
Normal Divider Mode (8-bit Auto-reload Timer)
Setting bit FDM in register FDCON to 1 configures the fractional divider to normal divider mode, while at the same time disables baud rate generation (see Figure 29). Once the fractional divider is enabled (FDEN = 1), it functions as an 8-bit auto-reload timer (with no relation to baud rate generation) and counts up from the reload value with each input clock pulse. Bit field RESULT in register FDRES represents the timer value, while bit field STEP in register FDSTEP defines the reload value. At each timer overflow, an overflow flag (FDCON.NDOV) will be set and an interrupt request generated. This gives an output clock fMOD that is 1/n of the input clock fDIV, where n is defined by 256 - STEP. The output frequency in normal divider mode is derived as follows:
1 f MOD = f DIV x ----------------------------256 - STEP
(3.8)
Data Sheet
85
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.15
LIN Protocol
The UART module can be used to support the Local Interconnect Network (LIN) protocol for both master and slave operations. The LIN baud rate detection feature, which consists of the hardware logic for Break and Synch Byte detection, provides the capability to detect the baud rate within LIN protocol using Timer 2. This allows the UART to be synchronized to the LIN baud rate for data transmission and reception. Note: The LIN baud rate detection feature is available for use only with UART. To use UART1 for LIN communication, software has to be implemented to detect the Break and Synch Byte. LIN is a holistic communication concept for local interconnected networks in vehicles. The communication is based on the SCI (UART) data format, a single-master/multipleslave concept, a clock synchronization for nodes without stabilized time base. An attractive feature of LIN is self-synchronization of the slave nodes without a crystal or ceramic resonator, which significantly reduces the cost of hardware platform. Hence, the baud rate must be calculated and returned with every message frame. The structure of a LIN frame is shown in Figure 30. The frame consists of the: * * * * Header, which comprises a Break (13-bit time low), Synch Byte (55H), and ID field Response time Data bytes (according to UART protocol) Checksum
Frame slot Frame Response space
Header
Response
Synch
Protected identifier
Data 1
Data 2
Data N
Checksum
Figure 30
Structure of LIN Frame
Data Sheet
86
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.15.1
LIN Header Transmission
LIN header transmission is only applicable in master mode. In the LIN communication, a master task decides when and which frame is to be transferred on the bus. It also identifies a slave task to provide the data transported by each frame. The information needed for the handshaking between the master and slave tasks is provided by the master task through the header portion of the frame. The header consists of a break and synch pattern followed by an identifier. Among these three fields, only the break pattern cannot be transmitted as a normal 8-bit UART data. The break must contain a dominant value of 13 bits or more to ensure proper synchronization of slave nodes. In the LIN communication, a slave task is required to be synchronized at the beginning of the protected identifier field of frame. For this purpose, every frame starts with a sequence consisting of a break field followed by a synch byte field. This sequence is unique and provides enough information for any slave task to detect the beginning of a new frame and be synchronized at the start of the identifier field. Upon entering LIN communication, a connection is established and the transfer speed (baud rate) of the serial communication partner (host) is automatically synchronized in the following steps: STEP 1: Initialize interface for reception and timer for baud rate measurement STEP 2: Wait for an incoming LIN frame from host STEP 3: Synchronize the baud rate to the host STEP 4: Enter for Master Request Frame or for Slave Response Frame Note: Re-synchronization and setup of baud rate are always done for every Master Request Header or Slave Response Header LIN frame.
Data Sheet
87
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.16
High-Speed Synchronous Serial Interface
The High-Speed Synchronous Serial Interface (SSC) supports full-duplex and half-duplex synchronous communication. The serial clock signal can be generated by the SSC internally (master mode), using its own 16-bit baud-rate generator, or can be received from an external master (slave mode). Data width, shift direction, clock polarity and phase are programmable. This allows communication with SPI-compatible devices or devices using other synchronous serial interfaces. Features * * * Master and slave mode operation - Full-duplex or half-duplex operation Transmit and receive buffered Flexible data format - Programmable number of data bits: 2 to 8 bits - Programmable shift direction: LSB or MSB shift first - Programmable clock polarity: idle low or high state for the shift clock - Programmable clock/data phase: data shift with leading or trailing edge of the shift clock Variable baud rate Compatible with Serial Peripheral Interface (SPI) Interrupt generation - On a transmitter empty condition - On a receiver full condition - On an error condition (receive, phase, baud rate, transmit error)
* * *
Data is transmitted or received on lines TXD and RXD, which are normally connected to the pins MTSR (Master Transmit/Slave Receive) and MRST (Master Receive/Slave Transmit). The clock signal is output via line MS_CLK (Master Serial Shift Clock) or input via line SS_CLK (Slave Serial Shift Clock). Both lines are normally connected to the pin SCLK. Transmission and reception of data are double-buffered. Figure 31 shows the block diagram of the SSC.
Data Sheet
88
V1.1, 2010-08
SAA-XC886CLM
Functional Description
PCLK
Baud-rate Generator
Clock Control Shift Clock RIR SSC Control Block Register CON TIR EIR
SS_CLK MS_CLK
Receive Int. Request Transmit Int. Request Error Int. Request
Status
Control TXD(Master) Pin Control RXD(Slave) TXD(Slave) RXD(Master)
16-Bit Shift Register
Transmit Buffer Register TB
Receive Buffer Register RB
Internal Bus
Figure 31
SSC Block Diagram
Data Sheet
89
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.17
Timer 0 and Timer 1
Timer 0 and Timer 1 can function as both timers or counters. When functioning as a timer, Timer 0 and Timer 1 are incremented every machine cycle, i.e. every 2 input clocks (or 2 PCLKs). When functioning as a counter, Timer 0 and Timer 1 are incremented in response to a 1-to-0 transition (falling edge) at their respective external input pins, T0 or T1. Timer 0 and 1 are fully compatible and can be configured in four different operating modes for use in a variety of applications, see Table 31. In modes 0, 1 and 2, the two timers operate independently, but in mode 3, their functions are specialized. Table 31 Mode 0 Timer 0 and Timer 1 Modes Operation 13-bit timer The timer is essentially an 8-bit counter with a divide-by-32 prescaler. This mode is included solely for compatibility with Intel 8048 devices. 16-bit timer The timer registers, TLx and THx, are concatenated to form a 16-bit counter. 8-bit timer with auto-reload The timer register TLx is reloaded with a user-defined 8-bit value in THx upon overflow. Timer 0 operates as two 8-bit timers The timer registers, TL0 and TH0, operate as two separate 8-bit counters. Timer 1 is halted and retains its count even if enabled.
1
2
3
Data Sheet
90
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.18
Timer 2 and Timer 21
Timer 2 and Timer 21 are 16-bit general purpose timers (THL2) that are fully compatible and have two modes of operation, a 16-bit auto-reload mode and a 16-bit one channel capture mode, see Table 32. As a timer, the timers count with an input clock of PCLK/12 (if prescaler is disabled). As a counter, they count 1-to-0 transitions on pin T2. In the counter mode, the maximum resolution for the count is PCLK/24 (if prescaler is disabled). Table 32 Mode Timer 2 Modes Description
Auto-reload Up/Down Count Disabled * Count up only * Start counting from 16-bit reload value, overflow at FFFFH * Reload event configurable for trigger by overflow condition only, or by negative/positive edge at input pin T2EX as well * Programmble reload value in register RC2 * Interrupt is generated with reload event Up/Down Count Enabled * Count up or down, direction determined by level at input pin T2EX * No interrupt is generated * Count up - Start counting from 16-bit reload value, overflow at FFFFH - Reload event triggered by overflow condition - Programmble reload value in register RC2 * Count down - Start counting from FFFFH, underflow at value defined in register RC2 - Reload event triggered by underflow condition - Reload value fixed at FFFFH Channel capture * * * * * * * Count up only Start counting from 0000H, overflow at FFFFH Reload event triggered by overflow condition Reload value fixed at 0000H Capture event triggered by falling/rising edge at pin T2EX Captured timer value stored in register RC2 Interrupt is generated with reload or capture event
Data Sheet
91
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.19
Capture/Compare Unit 6
The Capture/Compare Unit 6 (CCU6) provides two independent timers (T12, T13), which can be used for Pulse Width Modulation (PWM) generation, especially for AC-motor control. The CCU6 also supports special control modes for block commutation and multi-phase machines. The timer T12 can function in capture and/or compare mode for its three channels. The timer T13 can work in compare mode only. The multi-channel control unit generates output patterns, which can be modulated by T12 and/or T13. The modulation sources can be selected and combined for the signal modulation. Timer T12 Features * * * * * * * * * Three capture/compare channels, each channel can be used either as a capture or as a compare channel Supports generation of a three-phase PWM (six outputs, individual signals for highside and lowside switches) 16-bit resolution, maximum count frequency = peripheral clock frequency Dead-time control for each channel to avoid short-circuits in the power stage Concurrent update of the required T12/13 registers Generation of center-aligned and edge-aligned PWM Supports single-shot mode Supports many interrupt request sources Hysteresis-like control mode
Timer T13 Features * * * * * One independent compare channel with one output 16-bit resolution, maximum count frequency = peripheral clock frequency Can be synchronized to T12 Interrupt generation at period-match and compare-match Supports single-shot mode
Additional Features * * * * * * * Implements block commutation for Brushless DC-drives Position detection via Hall-sensor pattern Automatic rotational speed measurement for block commutation Integrated error handling Fast emergency stop without CPU load via external signal (CTRAP) Control modes for multi-channel AC-drives Output levels can be selected and adapted to the power stage
The block diagram of the CCU6 module is shown in Figure 32.
Data Sheet 92 V1.1, 2010-08
SAA-XC886CLM
Functional Description
module kernel
compare
address decoder T12 clock control
channel 0 channel 1 channel 2
start capture
1
1
deadtime control
multichannel control
trap control
1 output select output select 3
T13 interrupt control
channel 3
compare 1
3
2
2
2
trap input 1
input / output control
CCPOS0
CCPOS1
CCPOS2
COUT63
COUT60
COUT61
COUT62
Hall input
compare
compare
compare
port control
CCU6_block_diagram
Figure 32
CCU6 Block Diagram
Data Sheet
93
V1.1, 2010-08
CTRAP
T12HR
T13HR
CC60
CC61
CC62
SAA-XC886CLM
Functional Description
3.20
Controller Area Network (MultiCAN)
The MultiCAN module contains two Full-CAN nodes operating independently or exchanging data and remote frames via a gateway function. Transmission and reception of CAN frames is handled in accordance to CAN specification V2.0 B active. Each CAN node can receive and transmit standard frames with 11-bit identifiers as well as extended frames with 29-bit identifiers. Both CAN nodes share a common set of message objects, where each message object may be individually allocated to one of the CAN nodes. Besides serving as a storage container for incoming and outgoing frames, message objects may be combined to build gateways between the CAN nodes or to setup a FIFO buffer. The message objects are organized in double chained lists, where each CAN node has it's own list of message objects. A CAN node stores frames only into message objects that are allocated to the list of the CAN node. It only transmits messages from objects of this list. A powerful, command driven list controller performs all list operations. The bit timings for the CAN nodes are derived from the peripheral clock (fCAN) and are programmable up to a data rate of 1 MBaud. A pair of receive and transmit pins connects each CAN node to a bus transceiver.
MultiCAN Module Kernel Interrupt Controller
CANSRC[7:0]
Clock Control
fCAN
Message Object Buffer 32 Objects
Linked List Control
CAN Node 1 CAN Node 0
TXDC1 RXDC1 TXDC0 RXDC0 Port Control
Address Decoder & Data control Access Mediator
A[13: 2] D[31:0]
CAN Control
MultiCAN_XC8_overview
Figure 33 Features *
Overview of the MultiCAN
Compliant to ISO 11898.
94 V1.1, 2010-08
Data Sheet
SAA-XC886CLM
Functional Description * * * * * * CAN functionality according to CAN specification V2.0 B active. Dedicated control registers are provided for each CAN node. A data transfer rate up to 1 MBaud is supported. Flexible and powerful message transfer control and error handling capabilities are implemented. Advanced CAN bus bit timing analysis and baud rate detection can be performed for each CAN node via the frame counter. Full-CAN functionality: A set of 32 message objects can be individually - allocated (assigned) to any CAN node - configured as transmit or receive object - setup to handle frames with 11-bit or 29-bit identifier - counted or assigned a timestamp via a frame counter - configured to remote monitoring mode Advanced Acceptance Filtering: - Each message object provides an individual acceptance mask to filter incoming frames. - A message object can be configured to accept only standard or only extended frames or to accept both standard and extended frames. - Message objects can be grouped into 4 priority classes. - The selection of the message to be transmitted first can be performed on the basis of frame identifier, IDE bit and RTR bit according to CAN arbitration rules. Advanced Message Object Functionality: - Message Objects can be combined to build FIFO message buffers of arbitrary size, which is only limited by the total number of message objects. - Message objects can be linked to form a gateway to automatically transfer frames between 2 different CAN buses. A single gateway can link any two CAN nodes. An arbitrary number of gateways may be defined. Advanced Data Management: - The Message objects are organized in double chained lists. - List reorganizations may be performed any time, even during full operation of the CAN nodes. - A powerful, command driven list controller manages the organization of the list structure and ensures consistency of the list. - Message FIFOs are based on the list structure and can easily be scaled in size during CAN operation. - Static Allocation Commands offer compatibility with TwinCAN applications, which are not list based. Advanced Interrupt Handling: - Up to 8 interrupt output lines are available. Most interrupt requests can be individually routed to one of the 8 interrupt output lines. - Message postprocessing notifications can be flexibly aggregated into a dedicated register field of 64 notification bits.
*
*
*
*
Data Sheet
95
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.21
Analog-to-Digital Converter
The SAA-XC886 includes a high-performance 10-bit Analog-to-Digital Converter (ADC) with eight multiplexed analog input channels. The ADC uses a successive approximation technique to convert the analog voltage levels from up to eight different sources. The analog input channels of the ADC are available at Port 2. Features * * * * * * * * * * * * * * * * * * Successive approximation 8-bit or 10-bit resolution (TUE of 1 LSB and 2 LSB, respectively) Eight analog channels Four independent result registers Result data protection for slow CPU access (wait-for-read mode) Single conversion mode Autoscan functionality Limit checking for conversion results Data reduction filter (accumulation of up to 2 conversion results) Two independent conversion request sources with programmable priority Selectable conversion request trigger Flexible interrupt generation with configurable service nodes Programmable sample time Programmable clock divider Cancel/restart feature for running conversions Integrated sample and hold circuitry Compensation of offset errors Low power modes
3.21.1
ADC Clocking Scheme
A common module clock fADC generates the various clock signals used by the analog and digital parts of the ADC module: * *
fADCA is input clock for the analog part. fADCI is internal clock for the analog part (defines the time base for conversion length
and the sample time). This clock is generated internally in the analog part, based on the input clock fADCA to generate a correct duty cycle for the analog components. fADCD is input clock for the digital part.
*
The internal clock for the analog part fADCI is limited to a maximum frequency of 10 MHz. Therefore, the ADC clock prescaler must be programmed to a value that ensures fADCI does not exceed 10 MHz. The prescaler ratio is selected by bit field CTC in register
Data Sheet
96
V1.1, 2010-08
SAA-XC886CLM
Functional Description GLOBCTR. A prescaling ratio of 32 can be selected when the maximum performance of the ADC is not required.
f ADC = fPCLK
fADCD
arbiter
registers
interrupts
digital part
fADCA
CTC
/ 32 f ADCI /4 MUX /3 /2
clock prescaler
analog components
analog part 1 f ADCI
Condition: f ADCI 10 MHz, where t ADCI =
Figure 34
ADC Clocking Scheme
For module clock fADC = 24 MHz, the analog clock fADCI frequency can be selected as shown in Table 33. Table 33 24 MHz
fADCI Frequency Selection
CTC 00B 01B 10B 11B (default) Prescaling Ratio /2 /3 /4 / 32 Analog Clock fADCI 12 MHz (N.A) 8 MHz 6 MHz 750 kHz
Module Clock fADC
As fADCI cannot exceed 10 MHz, bit field CTC should not be set to 00B when fADC is 24 MHz. During slow-down mode where fADC may be reduced to 12 MHz, 6 MHz etc., CTC can be set to 00B as long as the divided analog clock fADCI does not exceed 10 MHz.
Data Sheet
97
V1.1, 2010-08
SAA-XC886CLM
Functional Description However, it is important to note that the conversion error could increase due to loss of charges on the capacitors, if fADC becomes too low during slow-down mode.
3.21.2
* * * *
ADC Conversion Sequence
The analog-to-digital conversion procedure consists of the following phases: Synchronization phase (tSYN) Sample phase (tS) Conversion phase Write result phase (tWR)
conversion start trigger Sample Phase fADCI BUSY Bit SAMPLE Bit tSYN tS tCONV Write Result Phase tWR Conversion Phase
Source interrupt
Channel interrupt
Result interrupt
Figure 35
ADC Conversion Timing
Data Sheet
98
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.22
On-Chip Debug Support
The On-Chip Debug Support (OCDS) provides the basic functionality required for the software development and debugging of XC800-based systems. The OCDS design is based on these principles: * * * * Use the built-in debug functionality of the XC800 Core Add a minimum of hardware overhead Provide support for most of the operations by a Monitor Program Use standard interfaces to communicate with the Host (a Debugger)
Features * * * * * Set breakpoints on instruction address and on address range within the Program Memory Set breakpoints on internal RAM address range Support unlimited software breakpoints in Flash/RAM code region Process external breaks via JTAG and upon activating a dedicated pin Step through the program code
The OCDS functional blocks are shown in Figure 36. The Monitor Mode Control (MMC) block at the center of OCDS system brings together control signals and supports the overall functionality. The MMC communicates with the XC800 Core, primarily via the Debug Interface, and also receives reset and clock signals. After processing memory address and control signals from the core, the MMC provides proper access to the dedicated extra-memories: a Monitor ROM (holding the code) and a Monitor RAM (for work-data and Monitor-stack). The OCDS system is accessed through the JTAG1), which is an interface dedicated exclusively for testing and debugging activities and is not normally used in an application. The dedicated MBC pin is used for external configuration and debugging control. Note: All the debug functionality described here can normally be used only after SAAXC886 has been started in OCDS mode.
1) The pins of the JTAG port can be assigned to either the primary port (Port 0) or either of the secondary ports (Ports 1 and 2/Port 5). User must set the JTAG pins (TCK and TDI) as input during connection with the OCDS system.
Data Sheet
99
V1.1, 2010-08
SAA-XC886CLM
Functional Description
JTAG Module
Debug Interface TMS TCK TDI TDO TCK TDI TDO Control Reset
Memory Control Unit
User Program Memory Boot/ Monitor ROM
JTAG
Monitor Mode Control
Monitor & Bootstrap loader Control line MBC
User Internal RAM Suspend Control System Control Unit Reset Clock
Monitor RAM
- parts of OCDS
Reset Clock Debug PROG PROG Memory Interface & IRAM Data Control Addresses
XC800 Core
OCDS_XC886C-Block_Diagram-UM-v0.2
Figure 36
OCDS Block Diagram
3.22.1
JTAG ID Register
This is a read-only register located inside the JTAG module, and is used to recognize the device(s) connected to the JTAG interface. Its content is shifted out when INSTRUCTION register contains the IDCODE command (opcode 04H), and the same is also true immediately after reset. The JTAG ID register contents for the SAA-XC886 Flash devices are given in Table 34. Table 34 Device Type Flash JTAG ID Summary Device Name SAA-XC886*-8FF SAA-XC886*-6FF JTAG ID 1012 0083H 1012 5083H
Note: The asterisk (*) above denotes all possible device configurations.
Data Sheet
100
V1.1, 2010-08
SAA-XC886CLM
Functional Description
3.23
Chip Identification Number
The SAA-XC886 identity (ID) register is located at Page 1 of address B3H. The value of ID register is 09H. However, for easy identification of product variants, the Chip Identification Number, which is an unique number assigned to each product variant, is available. The differentiation is based on the product, variant type and device step information. Two methods are provided to read a device's chip identification number: * * In-application subroutine, GET_CHIP_INFO Bootstrap loader (BSL) mode A
Table 35 lists the chip identification numbers of available SAA-XC886 device variants. Table 35 Chip Identification Number Chip Identification Number AB-Step XC886CLM-8FFA 5V XC886LM-8FFA 5V XC886CLM-6FFA 5V XC886LM-6FFA 5V XC886CM-8FFA 5V XC886C-8FFA 5V XC886-8FFA 5V XC886CM-6FFA 5V XC886C-6FFA 5V XC886-6FFA 5V AB-Step 09900102H 09900122H 09951502H 09951522H 09980102H 09980142H 09980162H 099D1502H 099D1542H 099D1562H AC-Step 0B900102H 0B900122H 0B951502H 0B951522H 0B980102H 0B980142H 0B980162H 0B9D1502H 0B9D1542H 0B9D1562H
Product Variant
Data Sheet
101
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
4
Electrical Parameters
Chapter 4 provides the characteristics of the electrical parameters which are implementation-specific for the SAA-XC886.
4.1
General Parameters
The general parameters are described here to aid the users in interpreting the parameters mainly in Section 4.2 and Section 4.3.
4.1.1
Parameter Interpretation
The parameters listed in this section represent partly the characteristics of the SAAXC886 and partly its requirements on the system. To aid interpreting the parameters easily when evaluating them for a design, they are indicated by the abbreviations in the "Symbol" column: * CC These parameters indicate Controller Characteristics, which are distinctive features of the SAA-XC886 and must be regarded for a system design. SR These parameters indicate System Requirements, which must be provided by the microcontroller system in which the SAA-XC886 is designed in.
*
Data Sheet
102
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
4.1.2
Absolute Maximum Rating
Maximum ratings are the extreme limits to which the SAA-XC886 can be subjected to without permanent damage. Table 36 Parameter Ambient temperature Absolute Maximum Rating Parameters Symbol -40 -65 -40 -0.5 -0.5 Limit Values min. max. 140 150 150 6 C C C V V under bias
1)
Unit Notes
TA Storage temperature TST Junction temperature TJ Voltage on power supply pin with VDDP respect to VSS Voltage on any pin with respect VIN to VSS
Input current on any pin during overload condition
under bias1)
1)
VDDP +
0.5 or max. 6
whichever is lower1)
1)
IIN
-10 -
10 50
mA mA
Absolute sum of all input currents |IIN| during overload condition
1)
1) Not subjected to production test, verified by design/characterization.
Note: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. During absolute maximum rating overload conditions (VIN > VDDP or VIN < VSS) the voltage on VDDP pin with respect to ground (VSS) must not exceed the values defined by the absolute maximum ratings.
Data Sheet
103
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
4.1.3
Operating Conditions
The following operating conditions must not be exceeded in order to ensure correct operation of the SAA-XC886. All parameters mentioned in the following table refer to these operating conditions, unless otherwise noted. Table 37 Parameter Digital power supply voltage Digital ground voltage Digital core supply voltage System Clock Frequency1) Ambient temperature Operating Condition Parameters Symbol Limit Values min. max. 5.5 2.7 103.2 140 4.5 0 2.3 88.8 -40 Unit Notes/ Conditions V V V MHz C SAA-XC886... 5V Device
VDDP VSS VDDC fSYS TA
1) fSYS is the PLL output clock. During normal operating mode, CPU clock is fSYS / 4. Please refer to Figure 25 for detailed description.
Data Sheet
104
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
4.2
DC Parameters
The electrical characteristics of the DC Parameters are detailed in this section.
4.2.1
Input/Output Characteristics
Table 38 provides the characteristics of the input/output pins of the SAA-XC886. Table 38 Parameter Input/Output Characteristics (Operating Conditions apply) Symbol Limit Values min. max. 1.0 1.0 0.4 V V V V V V V Unit Test Conditions
VDDP = 5 V Range
Output low voltage
VOL
CC - - -
IOL = 15 mA IOL = 5 mA, current into
all pins > 60 mA all pins 60 mA
IOL = 5 mA, current into IOH = -15 mA
from all pins > 60 mA from all pins 60 mA CMOS Mode
Output high voltage
VOH
CC VDDP - - 1.0
VDDP - -
1.0
IOH = -5 mA, current IOH = -5 mA, current
VDDP - -
0.4 Input low voltage on VILP port pins (all except P0.0 & P0.1) Input low voltage on P0.0 & P0.1 Input low voltage on RESET pin Input low voltage on TMS pin SR - 0.3 x
VDDP
SR -0.2 SR - SR - SR 0.7 x 0.3 x V V V V CMOS Mode CMOS Mode CMOS Mode CMOS Mode
VILP0 VILR VILT
VDDP
0.3 x
VDDP
0.3 x
VDDP
-
Input high voltage on VIHP port pins (all except P0.0 & P0.1) Input high voltage on P0.0 & P0.1
VDDP
SR 0.7 x
VIHP0
VDDP
V
CMOS Mode
VDDP
Data Sheet
105
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters Table 38 Parameter Input high voltage on RESET pin Input high voltage on TMS pin Input/Output Characteristics (Operating Conditions apply) (cont'd) Symbol Limit Values min. max. - V V V V V V A A A A A A mA mA V mA
3)
Unit Test Conditions CMOS Mode CMOS Mode CMOS Mode1)
1)
VIHR VIHT
SR 0.7 x
VDDP
SR 0.75 x -
VDDP
Input Hysteresis on port HYSP CC 0.07 x - pins VDDP Input Hysteresis on XTAL1 Input low voltage at XTAL1 Input high voltage at XTAL1 Pull-up current Pull-down current Input leakage current Input current at XTAL1
HYSX CC 0.07 x - VDDC VILX SR VSS 0.3 x VDDC 0.5 VIHX SR 0.7 x VDDC + VDDC 0.5 IPU SR - -10
-150 - 10 - 2 10 5 25 0.3 15
IPD IOZ1
SR - 150 CC -2 CC -10 SR -5 SR - SR -
VIHP,min VILP,max VILP,max VIHP,min 0 < VIN < VDDP, TA 140C2)
IILX Overload current on any IOV
pin Absolute sum of overload currents Voltage on any pin during VDDP power off |IOV|
3)
VPO
4)
Maximum current per IM SR SR - pin (excluding VDDP and VSS) Maximum current for all |IM| pins (excluding VDDP and VSS) SR -
90
mA
Data Sheet
106
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters Table 38 Parameter Maximum current into Input/Output Characteristics (Operating Conditions apply) (cont'd) Symbol Limit Values min. max. 120 120 mA mA
3)
Unit Test Conditions
IMVDDP SR -
SR -
VDDP
Maximum current out of IMVSS
3)
VSS
1) Not subjected to production test, verified by design/characterization. Hysteresis is implemented to avoid meta stable states and switching due to internal ground bounce. It cannot be guaranteed that it suppresses switching due to external system noise. 2) An additional error current (IINJ) will flow if an overload current flows through an adjacent pin. TMS pin and RESET pin have internal pull devices and are not included in the input leakage current characteristic. 3) Not subjected to production test, verified by design/characterization. 4) Not subjected to production test, verified by design/characterization. However, for applications with strict low power-down current requirements, it is mandatory that no active voltage source is supplied at any GPIO pin when VDDP is powered off.
Data Sheet
107
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
4.2.2
Supply Threshold Characteristics
Table 39 provides the characteristics of the supply threshold in the SAA-XC886.
5.0V VDDPPW VDDP
2.5V VDDC VDDCPOR
VDDCPW VDDCBO VDDCRDR VDDCBOPD
Figure 37 Table 39 Parameters
Supply Threshold Parameters Supply Threshold Parameters (Operating Conditions apply) Symbol min.
1)
Limit Values typ. 2.3 2.1 1.0 1.5 4.0 1.5 max. 2.4 2.2 1.1 1.7 4.6 1.7 CC CC 2.2 2.0 0.9 1.3 3.4 1.3
Unit V V V V V V
VDDC prewarning voltage VDDC brownout voltage in
active mode
1)
VDDCPW VDDCBO
RAM data retention voltage
VDDC brownout voltage in
power-down mode
2)
VDDCRDR CC VDDCBOPD CC VDDPPW VDDCPOR
CC CC
VDDP prewarning voltage3)
Power-on reset voltage
2)4)
1) Detection is disabled in power-down mode. 2) Detection is enabled in both active and power-down mode. 3) Detection is enabled for external power supply of 5.0V. 4) The reset of EVR is extended by 300 s typically after the VDDC reaches the power-on reset voltage.
Data Sheet
108
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
4.2.3
ADC Characteristics
The values in the table below are given for an analog power supply between 4.5 V to 5.5 V. All ground pins (VSS) must be externally connected to one single star point in the system. The voltage difference between the ground pins must not exceed 200mV. Table 40 Parameter Analog reference voltage Analog reference ground Analog input voltage range ADC clocks ADC Characteristics (Operating Conditions apply; VDDP = 5V Range) Symbol Limit Values min. typ . max. SR VAGND VDDP +1 SR VSS 0.05 Unit Test Conditions/ Remarks V
1)
VAREF VAGND VAIN fADC fADCI tS tC
|TUE|
VDDP
+ 0.05
VSS
VAREF V
-1
1)
SR VAGND - - - 24 -
VAREF V
25.8 10 MHz module clock1) MHz internal analog clock1) See Figure 34
1)
Sample time Conversion time Total unadjusted error Differential Nonlinearity Integral Nonlinearity Offset Gain Overload current coupling factor for analog inputs Overload current coupling factor for digital I/O pins
CC (2 + INPCR0.STC) x s
tADCI
CC See Section 4.2.3.1 CC - - - - 1 1 1 1 - - - - 1 2 - - - - 1.0 x 10-4 1.5 x 10-3 5.0 x 10-3 1.0 x 10-2 s
1)
LSB 8-bit conversion2) LSB 10-bit conversion2) LSB 10-bit conversion1) LSB 10-bit conversion1) LSB 10-bit conversion1) LSB 10-bit conversion1) - - - -
|EADNL| CC - |EAINL|
CC -
|EAOFF| CC - |EAGAIN| CC - KOVA CC -
-
IOV > 01)3) IOV < 01)3) IOV > 01)3) IOV < 01)3)
KOVD
CC - -
Data Sheet
109
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters Table 40 Parameter Switched capacitance at the reference voltage input Switched capacitance at the analog voltage inputs ADC Characteristics (Operating Conditions apply; VDDP = 5V Range) Symbol Limit Values min. typ . 10 max. 20 Unit Test Conditions/ Remarks pF
1)4)
CAREFSW CC -
CAINSW
CC -
5
7
pF
1)5)
Input resistance of RAREF the reference input Input resistance of RAIN the selected analog channel
CC - CC -
1 1
2 1.5
k k
1)
1)
1) Not subjected to production test, verified by design/characterization 2) TUE is tested at VAREF = 5.0 V, VAGND = 0 V, VDDP = 5.0 V. 3) An overload current (IOV) through a pin injects a certain error current (IINJ) into the adjacent pins. This error current adds to the respective pin's leakage current (IOZ). The amount of error current depends on the overload current and is defined by the overload coupling factor KOV. The polarity of the injected error current is inverse compared to the polarity of the overload current that produces it. The total current through a pin is |ITOT| = |IOZ1| + (|IOV| x KOV). The additional error current may distort the input voltage on analog inputs. 4) This represents an equivalent switched capacitance. This capacitance is not switched to the reference voltage at once. Instead of this, smaller capacitances are successively switched to the reference voltage. 5) The sampling capacity of the conversion C-Network is pre-charged to VAREF/2 before connecting the input to the C-Network. Because of the parasitic elements, the voltage measured at ANx is lower than VAREF/2.
Data Sheet
110
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
Analog Input Circuitry
REXT
ANx
RAIN, On
VAIN
CEXT
C AINSW
VAGNDx
Reference Voltage Input Circuitry
VAREFx
R AREF, On
VAREF
C AREFSW
VAGNDx
Figure 38
ADC Input Circuits
Data Sheet
111
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
4.2.3.1
ADC Conversion Timing
Conversion time, tC = tADC x ( 1 + r x (3 + n + STC) ) , where r = CTC + 2 for CTC = 00B, 01B or 10B, r = 32 for CTC = 11B, CTC = Conversion Time Control (GLOBCTR.CTC), STC = Sample Time Control (INPCR0.STC), n = 8 or 10 (for 8-bit and 10-bit conversion respectively), tADC = 1 / fADC
Data Sheet
112
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
4.2.4
Power Supply Current
Table 41 and Table 42 provide the characteristics of the power supply current in the SAA-XC886. Table 41 Parameter Power Supply Current Parameters (Operating Conditions apply;
VDDP = 5V range)
Symbol Limit Values typ.1) max.2) 31.9 24.4 17.0 14.2 mA mA mA mA
3)
Unit Test Condition
VDDP = 5V Range
Active Mode Idle Mode Active Mode with slow-down enabled Idle Mode with slow-down enabled
IDDP IDDP IDDP IDDP
26.9 20.3 13.7 11.4
4)
5)
6)
1) The typical IDDP values are periodically measured at TA = + 25 C and VDDP = 5.0 V.
2)The maximum IDDP values are measured under worst case conditions (TA = + 140 C and VDDP = 5.5 V).
3) IDDP (active mode) is measured with: CPU clock and input clock to all peripherals running at 24 MHz(set by on-chip oscillator of 9.6 MHz and NDIV in PLL_CON to 1001B), RESET = VDDP, no load on ports. 4) IDDP (idle mode) is measured with: CPU clock disabled, watchdog timer disabled, input clock to all peripherals enabled and running at 24 MHz, RESET = VDDP, no load on ports. 5) IDDP (active mode with slow-down mode) is measured with: CPU clock and input clock to all peripherals running at 8 MHz by setting CLKREL in CMCON to 0110B, RESET = VDDP, no load on ports. 6) IDDP (idle mode with slow-down mode) is measured with: CPU clock disabled, watchdog timer disabled, input clock to all peripherals enabled and running at 8 MHz by setting CLKREL in CMCON to 0110B, RESET = VDDP, no load on ports.
Data Sheet
113
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters Table 42 Parameter Power Down Current (Operating Conditions apply; VDDP = 5V range) Symbol Limit Values typ.1) max.2) 10 30 A A Unit Test Condition
VDDP = 5V Range
Power-Down Mode
IPDP
1 -
TA = + 25 C3)4) TA = + 85 C4)5)
1) The typical IPDP values are measured at VDDP = 5.0 V. 2) The maximum IPDP values are measured at VDDP = 5.5 V.
3)IPDP has a maximum value of 400 A at TA = + 140 C.
4) IPDP is measured with: RESET = VDDP, VAGND= VSS, RXD/INT0 = VDDP; rest of the ports are programmed to be input with either internal pull devices enabled or driven externally to ensure no floating inputs. 5) Not subjected to production test, verified by design/characterization.
Data Sheet
114
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
4.3
AC Parameters
The electrical characteristics of the AC Parameters are detailed in this section.
4.3.1
Testing Waveforms
The testing waveforms for rise/fall time, output delay and output high impedance are shown in Figure 39, Figure 40 and Figure 41.
VDDP 90% 90%
VSS
10% tR tF
10%
Figure 39
Rise/Fall Time Parameters
VDDP VDDE / 2 VSS Test Points VDDE / 2
Figure 40
Testing Waveform, Output Delay
VLoad + 0.1 V VLoad - 0.1 V
Timing Reference Points
VOH - 0.1 V VOL - 0.1 V
Figure 41
Testing Waveform, Output High Impedance
Data Sheet
115
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
4.3.2
Output Rise/Fall Times
Table 43 provides the characteristics of the output rise/fall times in the SAA-XC886. Table 43 Parameter Output Rise/Fall Times Parameters (Operating Conditions apply) Symbol Limit Values min. max. Unit Test Conditions
VDDP = 5V Range
Rise/fall times tR , t F - 10 ns 20 pF.1)2)3)
1) Rise/Fall time measurements are taken with 10% - 90% of pad supply. 2) Not all parameters are 100% tested, but are verified by design/characterization and test correlation. 3) Additional rise/fall time valid for CL = 20pF - 100pF @ 0.125 ns/pF.
V DDP 90% 90%
VSS
10%
10%
tR
tF
Figure 42
Rise/Fall Times Parameters
Data Sheet
116
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
4.3.3
Power-on Reset and PLL Timing
Table 47 provides the characteristics of the power-on reset and PLL timing in the SAAXC886. Table 44 Parameter Pad operating voltage On-Chip Oscillator start-up time Flash initialization time RESET hold time Power-On Reset and PLL Timing (Operating Conditions apply) Symbol Limit Values min. typ. max. - 500 - - V ns s s
1) 1)
Unit Test Conditions
VPAD tOSCST tFINIT tRST
CC 2.3 CC - CC - SR -
- - 160 500
1)
VDDP rise time
(10% - 90%) 500s1)2)
PLL lock-in in time PLL accumulated jitter
tLOCK DP
CC - -
- -
200 0.7
s ns
1) 1)3)
1) Not all parameters are 100% tested, but are verified by design/characterization and test correlation. 2) RESET signal has to be active (low) until VDDC has reached 90% of its maximum value (typ. 2.5 V). 3) PLL lock at 96 MHz using a 4 MHz external oscillator. The PLL Divider settings are K = 2, N = 48 and P = 1.
Data Sheet
117
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
VDDP
VPAD
VDDC tOSCST OSC
PLL
PLL unlock tLOCK
PLL lock
Flash State tRST RESET Pads
1) 2)
Reset
Initialization tFINIT
Ready to Read
3) 1)Pad state undefined 2)ENPS control 3)As Programmed
I)until EVR is stable
II)until PLL is locked
III) until Flash go IV) CPU reset is released; Boot to Ready-to-Read ROM software begin execution
Figure 43
Power-on Reset Timing
Data Sheet
118
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
4.3.4
On-Chip Oscillator Characteristics
Table 45 provides the characteristics of the on-chip oscillator in the SAA-XC886. Table 45 Parameter Nominal frequency On-chip Oscillator Characteristics (Operating Conditions apply) Symbol Limit Values min. typ. max. 9.36 9.6 0 - 9.84 6.0 Unit Test Conditions MHz under nominal conditions1) % with respect to fNOM, over lifetime and temperature (125C to 140C), for one given device after trimming with respect to fNOM, over lifetime and temperature (-10C to 125C), for one given device after trimming with respect to fNOM, over lifetime and temperature (-40C to -10C), for one given device after trimming within one LIN message (<10 ms .... 100 ms)
fNOM CC
CC
Long term frequency fLT deviation
-5.0
-
5.0
%
-6.0
-
0
%
Short term frequency fST CC deviation
-1.0
-
1.0
%
1) Nominal condition: VDDC = 2.5 V, TA = + 25C.
Data Sheet
119
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
4.3.5
External Clock Drive XTAL1
Table 46 shows the parameters that define the external clock supply for SAA-XC886. These timing parameters are based on the direct XTAL1 drive of clock input signals. They are not applicable if an external crystal or ceramic resonator is considered. Table 46 Parameter Oscillator period High time Low time Rise time Fall time External Clock Drive Characteristics (Operating Conditions apply) Symbol Limit Values Min. Max. 250 20 20 ns ns ns ns ns
1)2) 2)3) 2)3) 2)3) 2)3)
Unit Test Conditions
tosc t1 t2 t3 t4
SR 83.3 SR 25 SR 25 SR SR -
1) The clock input signals with 45-55% duty cycle are used. 2) Not all parameters are 100% tested, but are verified by design/characterization and test correlation. 3) The clock input signal must reach the defined levels VILX and VIHX.
t1
t3
t4 VIHX VILX
0.5 V DDC t2 tOSC
Figure 44
External Clock Drive XTAL1
Data Sheet
120
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
4.3.6
JTAG Timing
Table 47 provides the characteristics of the JTAG timing in the SAA-XC886. Table 47 Parameter TCK clock period TCK high time TCK low time TCK clock rise time TCK clock fall time TCK Clock Timing (Operating Conditions apply; CL = 50 pF) Symbol Limits min max - 4 4 ns ns ns ns ns
1) 1) 1) 1) 1)
Unit
Test Conditions
tTCK t1 t2 t3 t4
SR SR SR SR SR
50 20 20 -
1) Not all parameters are 100% tested, but are verified by design/characterization and test correlation.
0.5 V DDP
0.9 V DDP 0.1 V DDP
TCK
t1 t TCK t2 t4 t3
Figure 45 Table 48 Parameter
TCK Clock Timing JTAG Timing (Operating Conditions apply; CL = 50 pF) Symbol Limits min max 27 ns ns ns ns ns 8 24 11 24 Unit Test Conditions
1)
TMS setup to TCK TMS hold to TCK TDI setup to TCK TDI hold to TCK TDO valid output from TCK
t1 t2 t1 t2 t3
SR SR SR SR CC
1)
1)
1)
1)
Data Sheet
121
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters Table 48 Parameter TDO high impedance to valid output from TCK TDO valid output to high impedance from TCK JTAG Timing (Operating Conditions apply; CL = 50 pF) (cont'd) Symbol Limits min max 35 27 ns ns Unit Test Conditions
1)
t4 t5
CC CC
1)
1) Not all parameters are 100% tested, but are verified by design/characterization and test correlation.
TCK
t2
t1
TMS
t2
t1
TDI
t4 t3 t5
TDO
Figure 46
JTAG Timing
Data Sheet
122
V1.1, 2010-08
SAA-XC886CLM
Electrical Parameters
4.3.7
SSC Master Mode Timing
Table 49 provides the characteristics of the SSC timing in the SAA-XC886. Table 49 Parameter SCLK clock period MTSR delay from SCLK MRST setup to SCLK MRST hold from SCLK SSC Master Mode Timing (Operating Conditions apply; CL = 50 pF) Symbol Limit Values min. max. - 8 - - ns ns ns ns 2*TSSC 0 24 0 Unit Test Conditions
1)2) 2)
t0 t1 t2 t3
CC CC SR SR
2)
2)
1) TSSCmin = TCPU = 1/fCPU. When fCPU = 24 MHz, t0 = 83.3ns. TCPU is the CPU clock period. 2) Not all parameters are 100% tested, but are verified by design/characterization and test correlation.
t0
SCLK1)
t1
MTSR1)
t1
t2
MRST1)
t3
Data valid
t1
1) This timing is based on the following setup: CON.PH = CON.PO = 0. SSC_Tmg1
Figure 47
SSC Master Mode Timing
Data Sheet
123
V1.1, 2010-08
SAA-XC886CLM
Package and Quality Declaration
5
Package and Quality Declaration
Chapter 5 provides the information of the SAA-XC886 package and reliability section.
5.1
Package Parameters
Table 50 provides the thermal characteristics of the package used in SAA-XC886. Table 50 Parameter PG-TQFP-48 Thermal resistance junction RTJC case Thermal resistance junction RTJL lead CC CC 11.6 33.2 K/W K/W
1)2)
Thermal Characteristics of the Packages Symbol Min. Limit Values Max. Unit Notes
1)2)
1) The thermal resistances between the case and the ambient (RTCA) , the lead and the ambient (RTLA) are to be combined with the thermal resistances between the junction and the case (RTJC), the junction and the lead (RTJL) given above, in order to calculate the total thermal resistance between the junction and the ambient (RTJA). The thermal resistances between the case and the ambient (RTCA), the lead and the ambient (RTLA) depend on the external system (PCB, case) characteristics, and are under user responsibility. The junction temperature can be calculated using the following equation: TJ=TA+RTJA x PD, where the RTJA is the total thermal resistance between the junction and the ambient. This total junction ambient resistance RTJA can be obtained from the upper four partial thermal resistances, by a) simply adding only the two thermal resistances (junction lead and lead ambient), or b) by taking all four resistances into account, depending on the precision needed. 2) Not all parameters are 100% tested, but are verified by design/characterization and test correlation.
Data Sheet
124
V1.1, 2010-08
SAA-XC886CLM
Package and Quality Declaration
5.2
Package Outline
Figure 48 shows the package outlines of the SAA-XC886.
0.125 +0.075 -0.035
0.6 0.15
1 0.05 1.2 MAX.
0.1 0.05
H
0.5 5.5 0.22 0.05
2)
C 0.08 0.08 M A-B D C 48x
9
7 1)
0.2 A-B D 48x 0.2 A-B D H 4x D B
A
7 1)
48 1 Index Marking 1) Does not include plastic or metal protrusion of 0.25 max. per side 2) Does not include dambar protrusion of 0.08 max. per side
GPP09237
Figure 48
PG-TQFP-48 Package Outline
Data Sheet
9
125
7 MAX.
V1.1, 2010-08
SAA-XC886CLM
Package and Quality Declaration
5.3
Quality Declaration
Table 51 shows the characteristics of the quality parameters in the SAA-XC886. Table 51 Parameter Quality Parameters Symbol Limit Values Min. Operation Lifetime tOP when the device is used at the four stated TA 1) Operation Lifetime tOP2 when the device is used at the two stated TA1) Weighted Average Temperature3) ESD susceptibility according to Human Body Model (HBM) for all pins ESD susceptibility according to Charged Device Model (CDM) pins Typ. 106 Max. 1500 2000 10000 1500 18000 hours hours hours hours hours Unit Notes
130000 hours 2000 C V
TA = 140C2) TA = 125C2) TA = 85C2) TA = -40C2) TA = 108C2) TA = 27C2)
For 15000 hours2) Conforming to EIA/JESD22A114-B2) Conforming to JESD22-C101-C2)
TWA VHBM
VCDM
-
-
750
V
1) This lifetime refers only to the time when the device is powered-on. 2) Not all parameters are 100% tested, but are verified by design/characterization and test correlation. 3) This parameter is derived based on the Arrhenius model.
Data Sheet
126
V1.1, 2010-08
www.infineon.com
Published by Infineon Technologies AG

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