ADE7566/ADE7569/ADE7166/ADE7169
TABLE OF CONTENTS
General Features ............................................................................... 1
di/dt Current Sensor and Digital Integrator for the
ADE7569/ADE7169................................................................... 51
Energy Measurement Features........................................................ 1
Microprocessor Features.................................................................. 1
Revision History ............................................................................... 3
General Description......................................................................... 4
Functional Block Diagrams............................................................. 4
Specifications..................................................................................... 6
Energy Metering........................................................................... 6
Analog Peripherals ....................................................................... 7
Digital Interface............................................................................ 8
Timing Specifications ................................................................ 10
Absolute Maximum Ratings.......................................................... 15
Thermal Resistance .................................................................... 15
ESD Caution................................................................................ 15
Pin Configuration and Function Descriptions........................... 16
Typical Performance Characteristics ........................................... 18
Terminology .................................................................................... 22
SFR Mapping................................................................................... 23
Power Management........................................................................ 25
Power Management Register Details....................................... 25
Power Supply Architecture........................................................ 28
Battery Switchover...................................................................... 28
Power Supply Monitor Interrupt (PSM).................................. 29
Using the Power Supply Features ............................................. 31
Operating Modes............................................................................ 33
PSM0 (Normal Mode) ............................................................... 33
PSM1 (Battery Mode) ................................................................ 33
PSM2 (Sleep Mode).................................................................... 33
3.3 V Peripherals and Wake-Up Events................................... 34
Transitioning Between Operating Modes ............................... 35
Using the Power Management Features .................................. 35
Energy Measurement ..................................................................... 37
Access to Energy Measurement SFRs...................................... 37
Access to Internal Energy Measurement Registers................ 37
Energy Measurement Registers ................................................ 40
Energy Measurement Internal Registers Details.................... 41
Interrupt Status/Enable SFRs.................................................... 44
Analog Inputs.............................................................................. 46
Analog-to-Digital Conversion.................................................. 47
Fault Detection ........................................................................... 50
Power Quality Measurements................................................... 53
Phase Compensation ................................................................. 55
RMS Calculation ........................................................................ 55
Active Power Calculation.......................................................... 58
Active Energy Calculation ........................................................ 60
Reactive Power Calculation for the ADE7569/ADE7169..... 63
Reactive Energy Calculation for the ADE7569/ADE7169 ... 64
Apparent Power Calculation..................................................... 68
Apparent Energy Calculation ................................................... 69
Ampere-Hour Accumulation ................................................... 70
Energy-to-Frequency Conversion............................................ 71
Energy Register Scaling............................................................. 72
Energy Measurement Interrupts .............................................. 72
Temperature, Battery, and Supply Voltage Measurements........ 73
Temperature Measurement....................................................... 75
Battery Measurement................................................................. 75
External Voltage Measurement ................................................ 76
8052 MCU CORE Architecture.................................................... 78
MCU Registers............................................................................ 78
Basic 8052 Registers................................................................... 80
Standard 8052 SFRs.................................................................... 81
Memory Overview ..................................................................... 81
Addressing Modes...................................................................... 82
Instruction Set ............................................................................ 84
Read-Modify-Write Instructions ............................................. 86
Instructions That Affect Flags .................................................. 86
Dual Data Pointers ......................................................................... 88
Interrupt System ............................................................................. 89
Standard 8052 Interrupt Architecture..................................... 89
Interrupt Architecture ............................................................... 89
Interrupt Registers...................................................................... 89
Interrupt Priority........................................................................ 90
Interrupt Flags ............................................................................ 91
Interrupt Vectors ........................................................................ 93
Interrupt Latency........................................................................ 93
Context Saving............................................................................ 93
Watchdog Timer............................................................................. 94
LCD Driver...................................................................................... 96
Rev. A | Page 2 of 144
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