Driving the Digital Lifestyle
PM-22
Multifunction Image Processor
Imaging
Software
Processors
Quatro SOCs
Solutions
Zoran Corporation
1390 Kifer Road
Sunnyvale, CA 94086-5305
www.zoran.com
Product Brief
The PM-22 is a next-generation Codec device that leverages
Zoran's years of experience to provide the ultimate in
performance for today's multifunction peripherals. With
features such as a 75 MHz clock speed, an internal 16 KB of
SRAM, an internal Phase-Locked Loop (PLL), a 32-bit I/O
interface, JBIG compression and streamlined multi-tasking,
the PM-22 offers the most sophisticated bitonal image
compression capabilities available today.
Benefits
Key Features
• Ultimate performance–bitonal image compression device
• 75 MHz clock speed for high throughput
• Integrated SRAM (16 KB) and Phase-Locked Loop (PLL)
• 32-bit I/O interface mode
• Unparalleled throughput–Processes 600 dpi documents in
less than 150 milliseconds
• Support for ITU G3, G4 and JBIG bitonal image data formats
• Enhanced multi-tasking
• Highly integrated–Internal SRAM and Phase-Locked Loop
• 3.3 Volt power supply
(PLL)
• 16 KB internal SRAM
• High-speed rotation assist function, concurrent with
decompression
• Improved I/O–32-bit interface
• Flexible I/O modes include Burst, FIFO, and Full Duplex DMA
operation
• Programmable output palette
• Large image size capacity–handles up to 64 K pixels per line,
up to 64 K lines
• Multi-standard support–ITU G3, G4 and JBIG
• Improved system performance–Enhanced multi-tasking
• Programmable bit, byte and word ordering on input and output
Description
High Throughput
32-bit I/O Interface
The PM-22 can handle letter-sized 300 dpi documents in less
than 45 milliseconds and 600 dpi documents in less than 150
milliseconds. With a maximum clock speed of 75 MHz, the
PM-22 delivers a typical throughput of 225 Mpixels/second for
ITU G3 and G4 data. The worst-case throughput for any
compression/decompression standard is 75 Mpixels/second.
The PM-22 features a new interface mode that enables it to be
connected directly to 32-bit system busses. It allows use of a
32-bit host port for input, output or both. An 8-bit or 16-bit
peripheral port is also provided. Input and output data bit and
byte reordering functions have been expanded in the PM-22 to
include word-swapping.
Integrated SRAM and PLL
JBIG Compression
To maximize cost-effectiveness, the PM-22 has integrated SRAM
and Phase-Locked Loop (PLL). The PM-22's 16 KB of integrated
SRAM reduces overall system cost. Its integrated PLL enables
the PM-22 to generate its main internal clock frequency from a
lower-frequency signal for reduced emissions and simplified
board design.
JBIG offers compression ratios up to four times higher than with
two-dimensional ITU Group 4 encoding methods. This
improvement significantly increases system performance and
reduces image storage and transmission costs.
01/06-MMCP
Imaging-PM-22-PB-1.2
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