71M6533/71M6534 Data Sheet
FDS_6533_6534_004
Table of Contents
1
Hardware Description......................................................................................................................... 9
1.1
1.2
Hardware Overview.................................................................................................................... 9
Analog Front End (AFE) .......................................................................................................... 10
1.2.1 Signal Input Pins............................................................................................................10
1.2.2 Input Multiplexer ............................................................................................................10
1.2.3 A/D Converter (ADC).....................................................................................................11
1.2.4 FIR Filter ........................................................................................................................11
1.2.5 Voltage References .......................................................................................................12
1.2.6 Temperature Sensor......................................................................................................13
1.2.7 Battery Monitor...............................................................................................................13
1.2.8 AFE Functional Description ...........................................................................................13
1.2.9 Digital Computation Engine (CE)...................................................................................14
1.2.10 Meter Equations.............................................................................................................15
1.2.11 Real-Time Monitor .........................................................................................................15
1.2.12 Pulse Generators...........................................................................................................16
1.2.13 Data RAM (XRAM) ........................................................................................................16
1.2.14 CE Functional Overview ................................................................................................17
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 71M6533/71M6534-Specific Special Function Registers..............................................25
1.3.5 Instruction Set................................................................................................................26
1.3.6 UARTs ...........................................................................................................................26
1.3.7 Timers and Counters .....................................................................................................29
1.3.8 WD Timer (Software Watchdog Timer) .........................................................................30
1.3.9 Interrupts........................................................................................................................30
On-Chip Resources ................................................................................................................. 37
1.4.1 Oscillator........................................................................................................................37
1.4.2 PLL and Internal Clocks.................................................................................................37
1.4.3 Real-Time Clock (RTC) .................................................................................................38
1.4.4 Temperature Sensor......................................................................................................39
1.4.5 Physical Memory............................................................................................................39
1.4.6 UART and Optical Interface...........................................................................................41
1.4.7 Digital I/O .......................................................................................................................42
1.4.8 LCD Drivers ...................................................................................................................45
1.4.9 Battery Monitor...............................................................................................................46
1.4.10 EEPROM Interface ........................................................................................................46
1.4.11 SPI Slave Port................................................................................................................49
1.4.12 Hardware Watchdog Timer............................................................................................51
1.4.13 Test Ports (TMUXOUT Pin)...........................................................................................51
1.4.14 V2 Comparator (71M6534/6534H only).........................................................................52
Functional Description..................................................................................................................... 53
Theory of Operation................................................................................................................. 53
System Timing Summary........................................................................................................ 54
Battery Modes .......................................................................................................................... 55
2.3.1 BROWNOUT Mode .......................................................................................................56
2.3.2 LCD Mode......................................................................................................................57
1.3
1.4
2
2.1
2.2
2.3
2
© 2007-2009 TERIDIAN Semiconductor Corporation
v1.1
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