Datasheet
ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/ADE7569
Rev. B | Page 2 of 152
TABLE OF CONTENTS
General Features ............................................................................... 1
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 Configurations and Function Descriptions ......................... 16
Typical Performance Characteristics ........................................... 22
Performance Curves for the ADE7169 and ADE7569 Only 25
Terminology .................................................................................... 26
Special Function Register (SFR) Mapping .................................. 27
Power Management ........................................................................ 29
Power Management Register Details ....................................... 29
Power Supply Architecture ........................................................ 32
Battery Switchover ...................................................................... 32
Power Supply Management (PSM) Interrupt ......................... 33
Using the Power Supply Features ............................................. 35
Operating Modes ............................................................................ 37
PSM0 (Normal Mode) ............................................................... 37
PSM1 (Battery Mode) ................................................................ 37
PSM2 (Sleep Mode) .................................................................... 37
3.3 V Peripherals and Wake-Up Events ................................... 38
Transitioning Between Operating Modes ............................... 39
Using the Power Management Features .................................. 39
Energy Measurement ..................................................................... 40
Access to Energy Measurement SFRs ...................................... 40
Access to Internal Energy Measurement Registers ................ 40
Energy Measurement Registers ................................................ 43
Energy Measurement Internal Register Details ..................... 44
Interrupt Status/Enable SFRs .................................................... 47
Analog Inputs .............................................................................. 49
Analog-to-Digital Conversion .................................................. 50
Fault Detection ........................................................................... 54
di/dt Current Sensor and Digital Integrator for the
ADE7169/ADE7569 ................................................................... 55
Power Quality Measurements ................................................... 57
Phase Compensation ................................................................. 59
RMS Calculation ........................................................................ 59
Active Power Calculation .......................................................... 62
Active Energy Calculation ........................................................ 64
Reactive Power Calculation (ADE7169/ADE7569) .............. 67
Reactive Energy Calculation (ADE7169/ADE7569) ............. 68
Apparent Power Calculation ..................................................... 72
Apparent Energy Calculation ................................................... 73
Ampere-Hour Accumulation ................................................... 74
Energy-to-Frequency Conversion............................................ 75
Energy Register Scaling ............................................................. 76
Energy Measurement Interrupts .............................................. 76
Temperature, Battery, and Supply Voltage Measurements........ 77
Temperature Measurement ....................................................... 79
Battery Measurement ................................................................. 79
External Voltage Measurement ................................................ 80
8052 MCU Core Architecture....................................................... 82
MCU Registers ............................................................................ 82
Basic 8052 Registers ................................................................... 84
Standard 8052 SFRs .................................................................... 85
Memory Overview ..................................................................... 85
Addressing Modes ...................................................................... 86
Instruction Set ............................................................................ 88
Read-Modify-Write Instructions ............................................. 90
Instructions That Affect Flags .................................................. 90
Dual Data Pointers ......................................................................... 92
Interrupt System ............................................................................. 93
Standard 8052 Interrupt Architecture ..................................... 93
Interrupt Architecture ............................................................... 93
Interrupt Registers...................................................................... 93
Interrupt Priority ........................................................................ 94
Interrupt Flags ............................................................................ 95
Interrupt Vectors ........................................................................ 97
Interrupt Latency ........................................................................ 97
Context Saving ............................................................................ 97
Watchdog Timer ............................................................................. 98