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AT76C101

JPEG Image Compression Processor

Atmel Corporation 

Features

• Compatible with the JPEG Baseline Standard as Defined by ISO IS 109 18-1

• Highly-integrated, Low-cost Single Chip Solution

• Up to 40 Mbytes/sec Sustained Compression Rate

• Maximum Processing Rate of 1.6 million pixels/sec

• Supports 8-bit Grayscale and YUV 4:2:2 Color Space Input and Output Formats

• Handles Images of Size up to 1024 x 1024 Pixels

• Fast DCT/IDCT Processor On-chip

• User-defined Quantization and Huffman Tables

• Support for Fast as well as Slow/Inexpensive Memories

• Provides Direct Interface for Microcontroller/Microprocessor Access

Applications

The AT76C101 JPEG Processor is optimized for use in the following applications:

• Digital Cameras

• Color Printers and Plotters

• Low-cost Image Compression Systems

• Video Editing (3-4 frames/sec at CCIR 720 x 480 Image Resolution)

Hardware Resources

• On-chip Video Interface

• Custom Discrete Cosine Transform and Quantization Processor

• Variable Length and Huffman Encoder/Decoder

• Programmable Memory Interface (Supports Slow Memories)

• Microcontroller/Microprocessor Access Bus

Pin Configuration

100-Pin QFP

SRDATA15-0

SRADDR14-0

PXWE

PXRE

PXIN

PXOUT

STOP_PIXEL

SRDRIVE

H_SYNC

V_SYNC

PX_CLK

CLK_IN

M_ADDR19-0

M_DATA7-0

MEM_CS

TEST

RESET

FRAMEND

FREEZE

MASTER_CS

MASTER_WR

MASTER_OE

BUSY

BST_TEST

JPEG Image

Compression

Processor

AT76C101

Rev. 0751A–04/98

1

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