W99685FS

Publication Release Date: April 13, 2005

- 3 -

Revision A4

Sensor Interface

• Support CCIR-656 8-bit YUV interface

• Supports fast serial interface to program image sensor.

Host Interface

• 8/16 bits parallel Bus (Indirect access)

Easy for base band chip( Host ) to develop Camera function through Command set

protocol.

LCD Display Interface

• Support up to dual LCD Panels interface

• Supports MCU type interface LCD module

• Supports 8/16/18-bit display data output to LCD Penal

• Support 4 kinds of display data format out to LCD Penal

− 256 colors (RGB-332)

− 4096 colors (RGB-444)

− 64k colors (RGB-565)

− 256k colors (RGB-666)

• Support LCD interface bypass mode

• Support TFT-LCD, CSTN-LCD, STN-LCD Panel Types

•

If camera function is active, the host CPU can use W99685FS as the bridge (display controller)

to LCM. And it can provide multiple display buffers.

•

If camera function is disabled, the host CPU can use bypass mode to control the LCM directly

for maximum power saving.

JPEG CODEC for Image Compression and Decompression

• Fully compliant with ISO/IEC 10918-1 international JPEG standard

• JPEG compression and decompression for still images

• Real-time motion JPEG (M-JPEG) compression with advanced bit rate control for live video

• JPEG baseline sequential mode in interleaved scan YcbCr(4:2:2) or YcbCr(4:2:0) format

• Support adjustable quantization table for different compression ratio

• Support smooth digital zoom

• Support JPEG re-sizing and re-encoding

Operation Modes

• Preview ModeFrame rate up to 30 fps

• Single Snapshot Mode

• Burst Snapshot Mode

− Support up to 10 frames burst snapshot at 1/30 sec interval

•

Movie Mode (Motion JPEG)

− About 15 seconds recording time with 800K bytes vedio buffer at 160x120 size @ 15 fps