STV0681

2/44

ADCS 7283313C

Table of Contents

Chapter 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.1

Digital camera chipset .......................................................................................................... 5

1.2

Key system features ............................................................................................................. 6

Chapter 2

Detailed Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

2.1

Sensor type and image formats ........................................................................................... 9

2.2

User interface ..................................................................................................................... 10

2.3

Battery level detect and USB auto-switch .......................................................................... 12

2.4

Audio record and playback ................................................................................................. 12

2.5

PC interface options and software support ........................................................................ 13

2.6

Anti-flicker exposure and gain control ................................................................................ 14

Chapter 3

Camera Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

3.1

Modes available ................................................................................................................. 15

3.2

Description of modes ......................................................................................................... 16

Chapter 4

STV0681 Hardware Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

4.1

Sensor interface ................................................................................................................. 18

4.2

Memory interface ............................................................................................................... 18

4.3

USB interface ..................................................................................................................... 21

4.4

UART module for RS232 interface ..................................................................................... 22

4.5

Power management and battery type ................................................................................ 23

4.6

Quartz crystal ..................................................................................................................... 24

4.7

Numeric LCD interface .......................................................................................................24

4.8

Switches and LED’s ........................................................................................................... 25

4.9

Flashgun hardware interface .............................................................................................. 26

4.10

IR filter ................................................................................................................................ 26

Chapter 5

Customising the STV0681 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

5.1

External EEPROM .............................................................................................................27

5.2

EEPROM data format ........................................................................................................ 28

5.3

Programming the EEPROM ............................................................................................... 28