71M6543F/H and 71M6543G/GH Data Sheet
Table of Contents
1
2
Introduction .................................................................................................................................10
Hardware Description..................................................................................................................11
2.1 Hardware Overview...............................................................................................................11
2.2 Analog Front-End (AFE)........................................................................................................12
2.2.1 Signal Input Pins .......................................................................................................13
2.2.2 Input Multiplexer........................................................................................................14
2.2.3 Delay Compensation.................................................................................................19
2.2.4 ADC Pre-Amplifier.....................................................................................................20
2.2.5 A/D Converter (ADC).................................................................................................20
2.2.6 FIR Filter...................................................................................................................20
2.2.7 Voltage References...................................................................................................20
2.2.8 71M6xx3 Isolated Sensor Interface............................................................................22
2.3 Digital Computation Engine (CE)...........................................................................................25
2.3.1 CE Program Memory.................................................................................................25
2.3.2 CE Data Memory.......................................................................................................25
2.3.3 CE Communication with the MPU..............................................................................25
2.3.4 Meter Equations........................................................................................................26
2.3.5 Real-Time Monitor (RTM)..........................................................................................26
2.3.6 Pulse Generators ......................................................................................................26
2.3.7 CE Functional Overview............................................................................................28
2.4 80515 MPU Core ..................................................................................................................30
2.4.1 Memory Organization and Addressing.......................................................................30
2.4.2 Special Function Registers (SFRs) ............................................................................32
2.4.3 Generic 80515 Special Function Registers ................................................................33
2.4.4 Instruction Set ...........................................................................................................35
2.4.5 80515 Power Reduction Modes.................................................................................35
2.4.6 UARTs ......................................................................................................................36
2.4.7 Timers and Counters.................................................................................................38
2.4.8 WD Timer (Software Watchdog Timer) ......................................................................40
2.4.9 Interrupts...................................................................................................................40
2.5 On-Chip Resources...............................................................................................................47
2.5.1 Physical Memory.......................................................................................................47
2.5.2 Oscillator...................................................................................................................49
2.5.3 PLL and Internal Clocks.............................................................................................50
2.5.4 Real-Time Clock (RTC) .............................................................................................51
2.5.5 71M6543 Temperature Sensor ..................................................................................55
2.5.6 71M6xx3 Temperature Sensor ..................................................................................56
2.5.7 71M6543 Battery Monitor ..........................................................................................57
2.5.8 71M6xx3 VCC Monitor ..............................................................................................57
2.5.9 UART and Optical Interface.......................................................................................57
2.5.10 Digital I/O and LCD Segment Drivers.........................................................................58
2.5.11 EEPROM Interface....................................................................................................66
2.5.12 SPI Slave Port...........................................................................................................68
2.5.13 Hardware Watchdog Timer........................................................................................72
2.5.14 Test Ports (TMUXOUT and TMUX2OUT Pins)...........................................................73
Functional Description................................................................................................................75
3
2
© 2008–2011 Teridian Semiconductor Corporation
v1.2
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
