PM-36 Просмотр технического описания (PDF) - Zoran Corporation

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PM-36

JPEG Image Processor

Zoran Corporation 

PM-36

JPEG Image Processor

Driving the Digital Lifestyle

Product Brief

Descriptions (continued)

PM-36 Capabilities

The PM-36 enables the following combinations of operations to be

performed on the data stream during one pass through the device:

• Raster format image data: Converted to Block mode, subsampled

2:1, and JPEG encoded

• Block format image data: JPEG encoded

• JPEG-encoded data: JPEG decoded to raw format, upsampled

2:1, and output in Block or Raster format

Design Considerations

The PM-36 can be easily integrated into a variety of systems.

Design features include:

• A simple peripheral interface for use with any standard processor

• Programmable control port bus width (16 or 32 bits)

• Flexible input and output ports, which simplify system design

• Input and output ports can be sized at 8, 16, 24, or 32 bits wide

and contain bit, byte and word order controls to match any

processor bus requirements

• 256-byte buffer on both input and output ports can minimize or

even eliminate external buffering requirements

• High speed I/O modes, synchronous FIFO and Burst DMA modes

The PM-36 requires little in the way of external support chips. A

minimal system requires only a frequency source. An external

SRAM array (up to 4 MB) may be added to enable raster format

data streams. The external SRAM is used to store input or output

lines for raster-to-block or block-to-raster conversion operations

PM-36 Block Diagram

PM-36 Specifications

Formats Supported

• Grayscale pixels in Raster or Block format (8 bits per pixel)

• Color pixels in Raster or Block format (8 bits per component)

• JPEG-encoded data

Electrical Specification

• 3.3 Volt power supply

• 5 Volt tolerant I/O (TTL-compatible I/O)

• Designed and fabricated in 0.35 micron standard cell technology

• Available industry-standard 208 PQFP package with 0.5 mm

lead spacing

• Also available in lead-free “green” packaging

Data In

8/16/24

or 32 bit

I/O Interface

Data Out

8/16/24

or 32 bit

Input/Output

FIFO

Control Data

16 or 32 bits

Command

I/F

Address

20 bits

Data

32 bits

Interpolator

SRAM

I/F

FDCT/

IDCT

Zig-Zag

Quantizer

Huffman

Codec

Q Tables

Huffman

Tables

© Copyright 1999-2006 Zoran Corporation. All rights reserved. Zoran and the Zoran logo are trademarks of Zoran Corporation. All other names used are owned by their respective owners. Zoran Corporation makes no guarantee concerning the

accuracy of the information contained herein and further does not guarantee that the use of such information will not infringe the rights of any third party. Zoran will not be responsible for any loss or damage of whatever nature resulting from the

use of, or reliance upon, the information. Zoran reserves the right to make changes in the product and/or specifications presented herein at any time without notice.

Zoran Corporation www.zoran.com

imaging.usa@zoran.com • imaging.japan@zoran.com • imaging.taiwan@zoran.com • imaging.korea@zoran.com

01/06-MMCP

Imaging-PM-36-PB-1.2

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