ADUC7023BCBZ62I-R7 datasheet(2/98 Pages) AD

2 / 98 page

ADuC7023

Data Sheet

Rev. H | Page 2 of 98

TABLE OF CONTENTS

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

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

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

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

Functional Block Diagram .............................................................. 5

Specifications .................................................................................... 6

Timing Specifications .................................................................. 9

Absolute Maximum Ratings ......................................................... 14

ESD Caution................................................................................ 14

Pin Configurations and Function Descriptions......................... 15

Typical Performance Characteristics........................................... 19

Terminology.................................................................................... 20

ADC Specifications .................................................................... 20

DAC Specifications .................................................................... 20

Overview of the ARM7TDMI Core ............................................. 21

Thumb Mode (T) ....................................................................... 21

Long Multiply (M) ..................................................................... 21

EmbeddedICE (I) ....................................................................... 21

Exceptions ................................................................................... 21

ARM Registers ............................................................................ 21

Interrupt Latency........................................................................ 22

Memory Organization ................................................................... 23

Memory Access........................................................................... 23

Flash/EE Memory....................................................................... 23

SRAM........................................................................................... 23

Memory Mapped Registers....................................................... 23

ADC Circuit Overview .................................................................. 31

Transfer Function ...................................................................... 31

Typical Operation ...................................................................... 32

MMR Interface ........................................................................... 32

Converter Operation.................................................................. 35

Driving the Analog Inputs ........................................................ 36

Calibration................................................................................... 36

Temperature Sensor................................................................... 36

Band Gap Reference................................................................... 38

Nonvolatile Flash/EE Memory ..................................................... 39

Programming.............................................................................. 39

Security ........................................................................................ 40

Flash/EE Control Interface ....................................................... 40

Execution Time from SRAM and Flash/EE ........................... 43

Reset and Remap ........................................................................ 43

Other Analog Peripherals ............................................................. 46

DAC ............................................................................................. 46

Power Supply Monitor .............................................................. 48

Comparator................................................................................. 48

Oscillator and PLL—Power Control ....................................... 50

Digital Peripherals.......................................................................... 53

General-Purpose Input/Output ............................................... 53

Serial Peripheral Interface......................................................... 56

I2C ..................................................................................................... 61

Configuring External Pins for I2C Functionality................... 61

Serial Clock Generation ............................................................ 61

I2C Bus Addresses ...................................................................... 61

I2C Registers ................................................................................ 62

Programmable Logic Array (PLA) .......................................... 69

Pulse-Width Modulator ................................................................ 73

Pulse-Width Modulator General Overview ........................... 73

Processor Reference Peripherals .................................................. 78

Interrupt System......................................................................... 78

IRQ ............................................................................................... 78

Fast Interrupt Request (FIQ).................................................... 79

Vectored Interrupt Controller (VIC)...................................... 80

Timers.......................................................................................... 85

Hardware Design Considerations .................................................. 90

Power Supplies............................................................................. 90

Grounding and Board Layout Recommendations ................ 91

Clock Oscillator.......................................................................... 91

Power-On Reset Operation ...................................................... 92

Typical System Configuration.................................................. 93

Development Tools........................................................................ 94

PC-Based Tools .......................................................................... 94

In-Circuit I2C Downloader ....................................................... 94

Outline Dimensions....................................................................... 95

Ordering Guide .......................................................................... 97

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