ADE5166 datasheet(2/148 Pages) AD

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ADE5166/ADE5169/ADE5566/ADE5569

Preliminary Technical Data

Rev. PrB | Page 2 of 148

TABLE OF CONTENTS

General Features ............................................................................... 1

Energy Measurement Features........................................................ 1

Microprocessor Features.................................................................. 1

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

Terminology .................................................................................... 18

SFR Mapping ................................................................................... 19

Power Management........................................................................ 21

Power Management Register Details ....................................... 21

Power Supply Architecture........................................................ 24

Battery Switchover...................................................................... 24

Power Supply Management Interrupt (PSM) ......................... 25

Using the Power Supply Features ............................................. 27

Operating Modes ............................................................................ 29

PSM0 (Normal Mode) ............................................................... 29

PSM1 (Battery Mode) ................................................................ 29

PSM2 (Sleep Mode).................................................................... 29

3.3 V Peripherals and Wake-Up Events................................... 30

Transitioning Between Operating Modes ............................... 31

Using the Power Management Features .................................. 31

Energy Measurement ..................................................................... 33

Access to Energy Measurement SFRs ...................................... 33

Access to Internal Energy Measurement Registers................ 33

Energy Measurement Registers ................................................ 36

Energy Measurement Internal Registers Details.................... 37

Interrupt Status/Enable SFRs .................................................... 40

Analog Inputs.............................................................................. 42

Analog-to-Digital Conversion.................................................. 43

Fault Detection1 .......................................................................... 46

di/dt Current Sensor and Digital Integrator for the

ADE5569/ADE5169................................................................... 47

Power Quality Measurements................................................... 49

Phase Compensation ................................................................. 51

RMS Calculation ........................................................................ 51

Active Power Calculation .......................................................... 54

Active Energy Calculation ........................................................ 56

Reactive Power Calculation for the ADE5569/ADE5169..... 59

Reactive Energy Calculation for the ADE5569/ADE5169 ... 60

Apparent Power Calculation..................................................... 64

Apparent Energy Calculation ................................................... 64

Ampere-Hour Accumulation ................................................... 66

Energy-to-Frequency Conversion............................................ 66

Energy Register Scaling ............................................................. 67

Energy Measurement Interrupts .............................................. 67

Temperature, Battery, and Supply Voltage Measurements........ 68

Temperature Measurement ....................................................... 70

Battery Measurement................................................................. 70

External Voltage Measurement ................................................ 71

8052 MCU Core Architecture....................................................... 73

MCU registers............................................................................. 73

Basic 8052 Registers ................................................................... 75

Standard 8052 SFRs.................................................................... 77

Memory Overview ..................................................................... 77

Addressing Modes...................................................................... 78

Instruction Set ............................................................................ 80

Read-Modify-Write Instructions ............................................. 82

Instructions That Affect Flags .................................................. 82

Dual Data Pointers ......................................................................... 84

Interrupt System ............................................................................. 85

Standard 8052 Interrupt Architecture ..................................... 85

Interrupt Architecture ............................................................... 85

Interrupt Registers...................................................................... 85

Interrupt Priority........................................................................ 86

Interrupt Flags ............................................................................ 87

Interrupt Vectors ........................................................................ 89

Interrupt Latency........................................................................ 89

Context Saving............................................................................ 89

Watchdog Timer ............................................................................. 90

LCD Driver...................................................................................... 92

LCD Registers ............................................................................. 92

LCD Setup ................................................................................... 95

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