iCODEC
iDSP
iRET
PM-44i
Programmable Imaging DSP
The PM-44iTM is a high-performance, programmable imaging digital signal processor (DSP) designed specifically for image processing
in low-cost multi-function peripherals (MFPs). The PM-44i provides superior price/performance over conventional DSPs and greater
flexibility over custom ASICs. Combined with Oak Technology's Fusion-series image pipelines, the PM-44i delivers a complete, cus-
tomizable image processing solution for low-cost MFPs.
High-performance, low-cost
peripheral imaging solution
UNMATCHED
PRICE/PERFORMANCE
Third-generation SIMD par-
allel processing architecture
FLEXIBLE PLATFORM
Software development kit
that enables OEMs to
quickly add features and
deploy proprietary
intellectual property
FAST TIME-TO-MARKET
Complete suite of customiz-
able software image
pipelines for MFPs
SUPERIOR IMAGE QUALITY
Advanced image processing
algorithms
COST-EFFECTIVE SOLUTION
Embedded SRAM and small
package ideal for high-
volume color inkjet and
monochrome laser MFPs
HIGH-PERFORMANCE IMAGING PLATFORM
The low-cost MFP market is moving forward at an increas-
ingly rapid pace. New features such as high quality copying,
color fax, and Internet fax are quickly making current models
obsolete. Delivering these new features with ever shorter
time-to-market requires a high-performance, programmable
imaging platform.
The PM-44i is that platform. The PM-44i provides the
price/performance of a custom ASIC with all the time-to-
market advantages of a programmable DSP. Based on a
single instruction, multiple data-path (SIMD) architecture
designed specifically for high-throughput image processing,
the PM-44i succeeds where conventional DSPs fail.
The programmable PM-44i enables MFP designers to quickly
implement their image processing algorithms and pipelines.
For OEMs who want a total image processing solution, not
just a platform, Oak Technology provides a complete suite
of customizable image pipelines available as either source
or object code.
MONOCHROME LASER MFP SOLUTION
Image processing represents a key challenge in developing a
low-cost MFP. The PM-44i is the ideal platform for implement-
ing the complex image processing required to achieve high-
quality copying, scanning, and faxing on inexpensive scanner
and printer components. A single PM-44i delivers up to 20
monochrome laser copies per minute.
COLOR INKJET MFP SOLUTION
With the PM-44i, OEMs can quickly implement their own
image pipelines or use Oak Technology's image pipelines--
CopyFusionTM, ScanFusionTM, and FaxFusionTM. Utilizing propri-
etary algorithms, CopyFusion, FaxFusion, and ScanFusion deliv-
er superior image quality, improved compression ratios, and
faster inkjet printing. A single PM-44i delivers up to 10 color
inkjet copies per minute.
Key Features
2,100 MIPS and 530 MMACS at 133 MHz internal
operating frequency
4 parallel pipelined processors
Up to 20 monochrome laser copies or 10 color inkjet
copies per minute
Programmable via downloadable code
Internal 64 KB synchronous SRAM
Phase-locked loop (PLL) enables the PM-44i to generate its
main internal clock frequency from a lower-frequency signal
High-speed flexible input and output ports with programma-
ble widths of 8 to 32 bits
Interface to low-cost SDRAM
Flexible I/O -- enables connections to scanner or printer
engines, or to PM-22TM and PM-36TM compression chips
3.3 volt supply with TTL-compatible I/O video rate: 75 MHz
PROCESSOR TECHNOLOGY
The PM-44i is part of the Oak Technology iDSP Family of high-speed imaging DSPs. Our industry-leading iDSP products--PM-44i and PM-48TM--are the only DSPs designed
specifically for imaging applications in digital office equipment. Oak Technology iDSPs leverage today's most advanced technologies--including programmable operation--
to deliver the industry's highest performance and design flexibility, at the lowest possible cost. Typical color and monochrome applications include: high-speed copiers, fax
machines, scanners, printers, multifunction peripherals, digital cameras, and raster image processors (RIPs).
THE OAK TECHNOLOGY
TM
iDSP FAMILY
TM
PM_44i_v4 3/20/00 1:53 PM Page 1
A SUPERIOR ALTERNATIVE
The PM-44i offers important advantages over other chip alternatives:
Conventional DSPs--The PM-44i provides much higher imaging
performance at much lower costs than other DSPs.
FPGAs--The PM-44i offers much lower costs, higher performance,
and a simpler code-based development process.
Custom ASICs--The PM-44i offers the time-to-market and low-cost
advantages of a software-based solution. Its programmable design
simplifies algorithm changes, reduces time-to-market by significantly
reducing development time, and enables product upgrades and scalable
architectures for entire product families.
MEMORY STRUCTURE
The PM-44i is designed to access three different types of memory:
instruction memory; embedded memory; and expansion memory. The
2KB instruction memory provides single cycle access times for the
most commonly executed instructions.
The PM-44i's embedded 64 KB high-speed SRAM is used for image data
storage and secondary instruction storage. The PM-44i data paths operate
on image data that is stored in this buffer. Instructions may be stored
in the embedded memory and either executed in place, or transferred to
the instruction memory for performance improvements.
The PM-44i also has an internal SDRAM controller that supports up
to 32 MB of low-cost external SDRAM for use as expansion memory, or
as an input/output line buffer for storing image data. Data is transferred
between the expansion memory and the embedded memory by internal
DMA controllers.
DESIGN CONSIDERATIONS
The PM-44i can be easily integrated into a variety of systems. Design
features include:
A simple peripheral interface for use with any standard processor
High Performance I/O modes, including Burst, Video Burst, and
synchronous FIFO modes
Input and output ports handle synchronous transfer rates of up to
33 MHz with data path widths of 8 to 32 bits.
The PM-44i can be configured to interface to many different types of
devices, including multiple PM-44i's, PM-22, and PM-36 iCODECsTM
Interface to up to 32 MB of low cost external SDRAM
PM-44i SDK programming toolset available
Oak Technology, Inc., 139 Kifer Court Sunnyvale, CA 94086 / phone: (408) 737-0888 / fax: (408) 737-3838 / www.oaktech.com
Scanner
Scanner
Scanner
Modem
PC
Printer
PM-44i iDSP
FaxFusion (Tx)
Modem
Printer
FaxFusion (Rx)
ScanFusion
CopyFusion
SINGLE PM-44i APPLICATION
RUNNING MULTIPLE PIPELINES
SDRAM
PM-44i
Micro-
Controller
USB/1284
Fax
Modem
A/D
Converter
Scanner
Printer
ASIC
Printer Engine
Printer
Scanner Mechanism
PM-44i APPLICATION
PM-44i SPECIFICATIONS
Electrical Specifications
3.3 Volt supply
5 Volt tolerant I/O (TTL-compatible I/O)
133 MHz clock speed
Designed and fabricated in 0.35 micron standard
cell technology
Available in industry-standard 128-pin
PQFP package
Copyright 2000 Oak Technology, Inc. All right reserved. Oak Technology and the Oak logo are registered trademarks of Oak Technology. All other brands, product names, and company names are trademarks or registered trademarks of their respective owners.
The information in this document is believed to be reliable. However, Oak Technology, Inc. makes no guarantee or warranty concerning the accuracy of said information and shall not be responsible for any loss or damage of whatever nature resulting from the
use of, or reliance upon it. Oak does not guarantee that the use of any information contained herein will not infringe upon patent, trademark, copyright, or rights of third parties. No patent or license is implied hereby. This document does not in any way extend
the warranty on any product beyond that set forth in Oak's standard terms and conditions of sale. Oak Technology, Inc. reserves the right to make changes in the product or specifications, or both, presented in this publication at any time without notice.
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