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