Data Sheet 71M6531D/F-71M6532D/F
FDS 6531/6532 005
Table of Contents
1
Hardware Description.......................................................................................................................10
1.1 Hardware Overview ...................................................................................................................10
1.2 Analog Front End (AFE).............................................................................................................10
1.2.1 Signal Input Pins............................................................................................................10
1.2.2 Input Multiplexer.............................................................................................................11
1.2.3 A/D Converter (ADC).....................................................................................................12
1.2.4 FIR Filter ........................................................................................................................12
1.2.5 Voltage References .......................................................................................................12
1.2.6 Temperature Sensor......................................................................................................14
1.2.7 Battery Monitor...............................................................................................................14
1.2.8 AFE Functional Description ...........................................................................................14
1.2.9 Digital Computation Engine (CE)...................................................................................15
1.2.10 Meter Equations.............................................................................................................16
1.2.11 Real-Time Monitor .........................................................................................................16
1.2.12 Pulse Generators...........................................................................................................16
1.2.13 Data RAM (XRAM) ........................................................................................................17
1.2.14 Delay Compensation .....................................................................................................17
1.2.15 CE Functional Overview ................................................................................................17
1.3 80515 MPU Core .......................................................................................................................19
1.3.1 Memory Organization and Addressing ..........................................................................19
1.3.2 Special Function Registers (SFRs)................................................................................21
1.3.3 Generic 80515 Special Function Registers ...................................................................22
1.3.4 Special Function Registers (SFRs) Specific to the 71M6531D/F and 71M6532D/F.....24
1.3.5 Instruction Set................................................................................................................26
1.3.6 UARTs ...........................................................................................................................26
1.3.7 Timers and Counters .....................................................................................................28
1.3.8 WD Timer (Software Watchdog Timer) .........................................................................30
1.3.9 Interrupts........................................................................................................................30
1.4 On-Chip Resources ...................................................................................................................36
1.4.1 Oscillator........................................................................................................................36
1.4.2 Internal Clocks ...............................................................................................................36
1.4.3 Real-Time Clock (RTC) .................................................................................................37
1.4.4 Temperature Sensor......................................................................................................38
1.4.5 Physical Memory............................................................................................................38
1.4.6 Optical Interface.............................................................................................................40
1.4.7 Digital I/O – 71M6531D/F ..............................................................................................41
1.4.8 Digital I/O – 71M6532D/F ..............................................................................................43
1.4.9 Digital IO – Common Characteristics for 71M6531D/F and 71M6532D/F ....................44
1.4.10 LCD Drivers – 71M6531D/F ..........................................................................................45
1.4.11 LCD Drivers – 71M6532D/F ..........................................................................................46
1.4.12 LCD Drivers – Common Characteristics for 71M6531D/F and 71M6532D/F ...............46
1.4.13 Battery Monitor...............................................................................................................46
1.4.14 EEPROM Interface ........................................................................................................46
1.4.15 SPI Slave Port................................................................................................................49
1.4.16 Hardware Watchdog Timer............................................................................................52
1.4.17 Test Ports (TMUXOUT pin) ...........................................................................................53
2
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