ST7FLCD1 datasheet(2/95 Pages) STMICROELECTRONICS

2 / 95 page

ST7FLCD1

2/95

Table of Contents

Chapter 1

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

1.1

Block Diagram ..................................................................................................................... 6

1.2

Abbreviations ....................................................................................................................... 6

1.3

Reference Documents .........................................................................................................7

1.4

Pin Description .................................................................................................................... 8

1.5

External Connections ......................................................................................................... 10

1.6

Memory Map ..................................................................................................................... 11

Chapter 2

Central Processing Unit (CPU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

2.1

Main Features .................................................................................................................... 15

2.1.1

CPU Registers ...................................................................................................................................15

Chapter 3

Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

3.1

Low Voltage Detector and Watchdog Reset ...................................................................... 22

3.2

Watchdog or Illegal Opcode Access Reset ........................................................................ 23

3.3

External Reset .................................................................................................................... 23

3.4

Reset Procedure ................................................................................................................ 23

Chapter 4

Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

4.1

Software ............................................................................................................................. 24

4.2

External Interrupts (ITA, ITB) ............................................................................................. 24

4.3

Peripheral Interrupts ........................................................................................................... 24

4.4

Processing ......................................................................................................................... 24

4.5

Register Description .......................................................................................................... 26

Chapter 5

Flash Program Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

5.1

Introduction ........................................................................................................................ 28

5.2

Main Features .................................................................................................................... 28

5.3

Structure ............................................................................................................................. 28

5.4

Program Memory Read-out Protection .............................................................................. 28

5.5

In-Circuit Programming (ICP) ............................................................................................. 29

5.6

In-Application Programming (IAP) ...................................................................................... 30

5.7

Register Description ........................................................................................................... 30

5.8

Flash Option Bytes ............................................................................................................. 31

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