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ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/ADE7569
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 ?
Rev. B | Page 2 of 15 2
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