78M6612 Maxim, 78M6612 Datasheet - Page 2

• Manufacturer Part Number: 78M6612
• Description: The Teridian™ 78M6612 is a highly integrated, single-phase, power and energy measurement and monitoring system-on-chip (SoC) that includes a 32-bit compute engine (CE), an MPU core, RTC, and flash
• Manufacturer: Maxim

78M6612 Data Sheet
1
2
3
4
2
Hardware Description .................................................................................................................... 7
1.1
1.2
1.3
1.4
1.5
Functional Description ................................................................................................................ 18
2.1
2.2
2.3
2.4
Application Information ............................................................................................................... 21
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10 Connecting V1 and Reset Pins .............................................................................................. 25
3.11 Connecting the Emulator Port Pins ........................................................................................ 26
3.12 Flash Programming ............................................................................................................... 26
3.13 MPU Firmware Library .......................................................................................................... 26
3.14 Crystal Oscillator ................................................................................................................... 26
3.15 Measurement Calibration ...................................................................................................... 27
Electrical Specifications .............................................................................................................. 28
4.1
4.2
Hardware Overview................................................................................................................. 7
Analog Front End (AFE) .......................................................................................................... 8
Digital Computation Engine (CE) ........................................................................................... 10
80515 MPU Core .................................................................................................................. 11
On-Chip Resources............................................................................................................... 11
Theory of Operation .............................................................................................................. 18
Fault and Reset Behavior ...................................................................................................... 19
Data Flow ............................................................................................................................. 19
CE/MPU Communication ...................................................................................................... 20
Connection of Sensors (CT, Resistive Shunt) ........................................................................ 21
Connecting 5 V Devices ........................................................................................................ 22
Temperature Measurement ................................................................................................... 22
Temperature Compensation .................................................................................................. 22
Connecting LCDs .................................................................................................................. 23
Connecting I
Connecting Three-Wire EEPROMs ....................................................................................... 24
UART0 (TX0/RX0) ................................................................................................................ 24
UART1 (TX1/RX1) ................................................................................................................ 25
Absolute Maximum Ratings ................................................................................................... 28
Recommended External Components ................................................................................... 29
1.2.1 Input Multiplexer .......................................................................................................... 8
1.2.2 A/D Converter (ADC) ................................................................................................... 9
1.2.3 FIR Filter ..................................................................................................................... 9
1.2.4 Voltage References ..................................................................................................... 9
1.2.5 Temperature Sensor.................................................................................................... 9
1.2.6 Battery Monitor ............................................................................................................ 9
1.3.1 Real-Time Monitor ..................................................................................................... 10
1.3.2 Pulse Generator ........................................................................................................ 10
1.3.3 Data RAM (XRAM) .................................................................................................... 10
1.4.1 UARTs ...................................................................................................................... 11
1.5.1 Oscillator ................................................................................................................... 11
1.5.2 PLL and Internal Clocks............................................................................................. 11
1.5.3 Real-Time Clock (RTC) ............................................................................................. 12
1.5.4 Temperature Sensor.................................................................................................. 12
1.5.5 Flash Memory ........................................................................................................... 12
1.5.6 Optical Interface ........................................................................................................ 13
1.5.7 Digital I/O .................................................................................................................. 13
1.5.8 LCD Drivers .............................................................................................................. 16
1.5.9 EEPROM Interface .................................................................................................... 16
1.5.10 Hardware Watchdog Timer ........................................................................................ 17
1.5.11 Test Ports (TXUXOUT pin) ........................................................................................ 17
2.2.1 Reset Mode ............................................................................................................... 19
2.2.2 Power Fault Circuit .................................................................................................... 19
2
C EEPROMs .................................................................................................... 23
Table of Contents
DS_6612_001
Rev 2