71m6545h-igtr/f Maxim Integrated Products, Inc., 71m6545h-igtr/f Datasheet - Page 2

• Manufacturer Part Number: 71m6545h-igtr/f
• Description: Metrology Processors
• Manufacturer: Maxim Integrated Products, Inc.

Data Sheet 71M6545/H
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INTRODUCTION ........................................................................................................................... 10
Hardware Description .................................................................................................................. 11
2.1
2.2
2.3
2.4
2.5
Functional Description ................................................................................................................ 66
Hardware Overview............................................................................................................... 11
Analog Front End (AFE) ........................................................................................................ 12
Digital Computation Engine (CE) ........................................................................................... 25
80515 MPU Core .................................................................................................................. 30
On-Chip Resources............................................................................................................... 46
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 ............................................................................ 21
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
2.4.1 MPU Setup Code ...................................................................................................... 30
2.4.2 80515 MPU Overview ................................................................................................ 30
2.4.3 Memory Organization and Addressing ....................................................................... 31
2.4.4 Special Function Registers (SFRs) ............................................................................ 33
2.4.5 Generic 80515 Special Function Registers ................................................................ 33
2.4.6 Instruction Set ........................................................................................................... 36
2.4.7 UARTs ...................................................................................................................... 36
2.4.8 Timers and Counters ................................................................................................. 38
2.4.9 WD Timer (Software Watchdog Timer) ...................................................................... 40
2.4.10 Interrupts ................................................................................................................... 40
2.5.1 Physical Memory ....................................................................................................... 46
2.5.2 Oscillator ................................................................................................................... 48
2.5.3 PLL and Internal Clocks............................................................................................. 48
2.5.4 Real-Time Clock (RTC) ............................................................................................. 49
2.5.5 71M6545/H Temperature Sensor ............................................................................... 53
2.5.6 71M6xx3 Temperature Sensor .................................................................................. 54
2.5.7 71M6545/H Battery Monitor ....................................................................................... 55
2.5.8 71M6xx3 VCC Monitor .............................................................................................. 55
2.5.9 UART Interface ......................................................................................................... 55
2.5.10 DIO Pins ................................................................................................................... 55
2.5.11 EEPROM Interface .................................................................................................... 57
2.5.12 SPI Slave Port ........................................................................................................... 60
2.5.13 Hardware Watchdog Timer ........................................................................................ 64
2.5.14 Test Ports (TMUXOUT and TMUX2OUT Pins)........................................................... 64
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