ADuC7023BCPZ62I-R7 datasheet(2/96 Pages) AD

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ADuC7023

Data Sheet

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TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

General Description ......................................................................... 1

Revision History ............................................................................... 3

Functional Block Diagram .............................................................. 4

Specifications..................................................................................... 5

Timing Specifications .................................................................. 8

Absolute Maximum Ratings.......................................................... 13

ESD Caution................................................................................ 13

Pin Configurations and Function Descriptions ......................... 14

Typical Performance Characteristics ........................................... 18

Terminology .................................................................................... 19

ADC Specifications .................................................................... 19

DAC Specifications..................................................................... 19

Overview of the ARM7TDMI Core............................................. 20

Thumb Mode (T)........................................................................ 20

Long Multiply (M)...................................................................... 20

EmbeddedICE (I) ....................................................................... 20

Exceptions ................................................................................... 20

ARM Registers ............................................................................ 20

Interrupt Latency........................................................................ 21

Memory Organization ................................................................... 22

Memory Access........................................................................... 22

Flash/EE Memory....................................................................... 22

SRAM........................................................................................... 22

Memory Mapped Registers....................................................... 22

ADC Circuit Overview .................................................................. 29

Transfer Function ....................................................................... 29

Typical Operation....................................................................... 30

MMR Interface............................................................................ 30

Converter Operation.................................................................. 33

Driving the Analog Inputs ........................................................ 34

Calibration................................................................................... 34

Temperature Sensor ................................................................... 34

Band Gap Reference................................................................... 36

Nonvolatile Flash/EE Memory ..................................................... 37

Programming .............................................................................. 37

Security ........................................................................................ 38

Flash/EE Control Interface ....................................................... 38

Execution Time from SRAM and Flash/EE............................ 41

Reset and Remap........................................................................ 41

Other Analog Peripherals.............................................................. 44

DAC.............................................................................................. 44

Power Supply Monitor............................................................... 46

Comparator................................................................................. 46

Oscillator and PLL—Power Control........................................ 48

Digital Peripherals.......................................................................... 51

General-Purpose Input/Output................................................ 51

Serial Peripheral Interface......................................................... 54

I2C..................................................................................................... 59

Configuring External Pins for I2C Functionality................... 59

Serial Clock Generation ............................................................ 59

I2C Bus Addresses....................................................................... 59

I2C Registers................................................................................ 60

Programmable Logic Array (PLA)........................................... 67

Pulse-Width Modulator................................................................. 71

Pulse-Width Modulator General Overview ........................... 71

Processor Reference Peripherals................................................... 76

Interrupt System......................................................................... 76

IRQ ............................................................................................... 76

Fast Interrupt Request (FIQ) .................................................... 77

Vectored Interrupt Controller (VIC)....................................... 78

Timers.......................................................................................... 83

Hardware Design Considerations................................................... 88

Power Supplies ............................................................................. 88

Grounding and Board Layout Recommendations................. 89

Clock Oscillator.......................................................................... 89

Power-On Reset Operation....................................................... 90

Typical System Configuration .................................................. 91

Development Tools......................................................................... 92

PC-Based Tools........................................................................... 92

In-Circuit I2C Downloader ....................................................... 92

Outline Dimensions....................................................................... 93

Ordering Guide .......................................................................... 95

Rev. E

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