STV0672 データシートの表示（PDF） - STMicroelectronics

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STV0672

USB CIF/VGA Digital Camera Chipset

STMicroelectronics 

STV0672-chipsetf-3-1.fm

Introduction

DCT

Quantiser

Entropy Coder

OUT

USB FIFO

IN

8-line RAM

Block RAM

Auto Squeeze

Huffman tables

(stores YUV)

Raster to

block control

row/col/zig-zag

control

Quantisation

tables

Key

===

Ram/Data Storage

Logic

Figure 3 : STV0672 VC Block Diagram

2.4 Control Processor

The embedded 8052 microprocessor core plays a very important role within the STV0672 controlling data flow through the major

sub blocks within STV0672 as well as the I2C communications to reconfigure VP in line with requests from the device driver.

2.5 V6410/VV6500 General Description

The VV6410 sensor is a CIF format, 352 x 288 pixels, CMOS image sensor capable of outputting digital pixel data at frame rates,

of up to 30 frames per second. The VV6500 sensor is a VGA format, 640 x 480 pixels, CMOS image sensor capable of outputting

digital pixel data at frame rates, of up to 15 frames per second (in VGA mode). Both sensor arrays are covered by colour filters.

VV6410/VV6500 have on-chip 10-bit analogue to digital converters and are designed to interface directly to the STV0672 co-

processor chip as described above.

8/41

29 November 2000

Commercial in confidence

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