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PM-36 Datasheet Preview

PM-36 Datasheet

JPEG Image Processor

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PM-36™ /80 MHz/110MHz
.comJPEG Image Processor
Imaging
Software
eet4UProduct Brief
Zoran Corporation
1390 Kifer Road
Sunnyvale, CA 94086-5305
www.zoran.com
Driving the Digital Lifestyle
Processors
SOC Solutions
ataShThe PM-36 is a fixed-function iCODEC device that delivers high
.Dspeed JPEG compression/decompression of color and grayscale
image data. An ISO standard for lossy image compression, JPEG
wcan reduce the size of image data without a noticeable
wdifference in image quality. This improves system performance of
wBenefits
m• High Performance JPEG Imaging CODEC—Delivers sustained
odata rates of up to 110 MB per second
.c• Efficient Coding—loadable Q-Tables and two loadable Huffman
table pairs
U• Highly Integrated—Internal Phase-Locked Loop (PLL)
t4• 3.3 Volt supply—5 Volt Tolerant I/O
e• Standard Compliant—ISO IS 10918-1/10918-2
.DataSheDescription
wHigh Throughput
wThe PM-36 can sustain data rates of 80 or 110 MB per second to
support real time operations. In addition, it implements two advanced
mfeatures that maximize throughput and system performance:
w .co• Programmable code rate control—This optional mode limits the
Uencoded output data bandwidth to a predefined rate by dynamically
t4reducing the quantization accuracy on a block-by-block basis, as
required. This assures maximum throughput in high-speed
eperipherals.
he• Programmable code size control—This mode allows definition of an
Supper limit for the size of the encoded output file so that it does not
taexceed a fixed memory buffer size. This is achieved in a single pass
www.Daof the data, with no degradation in performance.
peripheral-based applications by reducing bandwidth and storage
requirements. The PM-36 is ideal for high resolution imaging
applications such as copiers, scanners, printers and multi-function
peripherals, particularly in networked environments.
Key Features
• Conforms to ISO IS 10918-1/10918-2 JPEG baseline for grayscale
and color
• 80 MHz clock speed for sustained 80 MB/second throughput.
(Raster or Block mode operations)
• 110 MHz clock speed for sustained 110 MB/second throughput
(Block mode operations only)
• 3.3 Volt power supply
• Four selectable quantization tables
• Two pairs of loadable Huffman tables
• Programmable code rate control
• Programmable code size control (single pass)
• Raster and block data formats
• Internal 256-byte buffers on input and output ports
• I/O modes supporting transfer rates up to 40 MHz (280 MB/per
second)
• Internal Phase-Locked Loop (PLL)
• Horizontal 2:1 subsampling and upsampling support for 4:2:2
formats using 2 or 3 point filters. (Raster mode operations only)
Efficient Coding
The PM-36 features several advanced JPEG coding techniques for
improved efficiency. Four loadable Q-tables are available for
dynamic quantization control on a block-by-block basis. In addition,
The PM-36 contains two loadable Huffman table pairs, which
improves coding efficiency by allowing the system to use different
encoding factors with out reprogramming the device.
Highly Integrated
The PM-36 features an internal Phase-Locked Loop (PLL) that
enables the chip to generate its main internal clock frequency from a
lower-frequency signal. This reduces emissions and simplifies board
design, particularly in systems using low-power CPUs and no external
SRAM.
9/03-MA
Imaging-PM-36-PB-1.0




Zoran

PM-36 Datasheet Preview

PM-36 Datasheet

JPEG Image Processor

No Preview Available !

PM-36™ /80 MHz/110MHz
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 and 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 requements
• 256-bytes 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 Specifications
Formats Supported
• Gray scale 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
PM-36 Block Diagram
Data In
8/16/24
or 32 bits
I/O
Interface
Data Out
8/16/24
or 32 bits
Input/Outp
ut FIFO
Control Data
16 or 32 bits
Command
I/F
Address
20 bits
Data
32 bits
Interpolator
SRA
M I/F
FDCT/
IDCT
Zig-Zag
Quantizer
Huffman
Codec
Q Tables
Huffman
Tables
Zoran Corporation www.zoran.com
imaging.usa@zoran.com • imaging.japan@zoran.com • imaging.taiwan@zoran.com • imaging.korea@zoran.com
Copyright ©1999-2003 Zoran Corporation. All rights reserved. Zoran, the Zoran logo and the PM-36 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.
9/03-MA
Imaging-PM-36-PB-1.0


Part Number PM-36
Description JPEG Image Processor
Maker Zoran
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