Intel. PXA255 Processor with Intel XScale. Technology

Product Brief

Intel. PXA255 Processor with
Intel. XScale. Technology

Continuing the advance in handheld multimedia functionality.




Product Highlights

High Performance:


Low-power, high-performance 32-bit Intel.
XScale. core-based CPU (200, 300 and
400 MHz)

ARM* Architecture v.5TE compliant

Intel. Superpipelined RISC Technology
utilizing advanced Intel. 0.18μ process
for high core speeds at low power

Intel. Media Processing Technology including
40-bit accumulator and 16-bit SIMD to
enhance audio/video decode performance

High-performance glue-less burst and
page mode interfaces with Synchronous
Intel StrataFlash. Memory
Low Power:


Low-Power and Turbo modes enables
enhanced battery life

32 KB data and 32 KB instruction caches

2 KB Mini data cache for streaming data

Support for 2.5 and 3.3V memories
I/O Expansion:


Integrated Memory and PCMCIA/Compact
Flash Controller with 100 MHz Memory
Bus, 16-bit or 32-bit ROM/Flash/SRAM
(six banks), 16-bit or 32-bit SDRAM,
SMROM (four banks), as well as PCMCIA
and Compact Flash for added functionality
and expendability

System Control Module includes 17 dedicated general-purpose interruptible I/O
ports, real-time clock, watchdog and interval timers, power management controller,
interrupt controller, reset controller, and
two on-chip oscillators
Wireless:


Peripheral Control Module offers 16 channel
configurable DMA controller, integrated
LCD controller with unique DMA for fast
color screen support, Bluetooth** I/F, serial
ports including IrDA, I2C*, I2S*, AC97, three
UARTs (1 Full H/W flow control), SPI and
enhanced SSP, USB end point interface,
and MMC/SD Card Support for expandable
memory and I/O functionality

17x17 mm 256-pin PBGA

Extended temperature support


Product Brief


Intel. PXA255 Processor

Product Overview

Wireless Internet Content
at Intel Speed

Mobile and wireless devices simplify our lives,
keep us entertained and increase productivity.
Each day businesses and individuals rely on
them more and more. But, to continue satisfying
ever-increasing customer demands to communicate and access information anytime, anywhere,
manufacturers need technologies that deliver high
performance, flexibility and robust functionality—
all in the small-size, low-power framework of
portable, battery-powered products. The Intel.
Personal Internet Client Architecture (Intel. PCA)
processors with Intel XScale technology help drive
handheld device functionality to new heights. With
a seven-stage pipeline and fast processing
speeds, these microprocessors help to enable
wireless devices to meet many of the performance
demands of Enterprise-class wireless computing
and feature-hungry technology consumers. All
while Intel's power management capabilities
deliver operating efficiency. By helping to reduce
component count and board space, lower power
consumption, minimize system costs and shorten
time-to-market, Intel PCA processors deliver
leading handheld devices.


Intel. PXA255 High-Performance
Processor

Enhancing the wireless, handheld experience.

For advanced devices that run the most impactful
mobile applications, the Intel. PXA255 processor
is the answer. A pin-for-pin compatible, drop-in
replacement for the Intel. PXA250 processor, the
Intel PXA255 processor is a highly integrated,
32-bit RISC processor that combines the efficiency
of Intel design with the ARM v.5TE instruction set
architecture. The Intel PXA255 processor delivers
industry-leading processing power with built-in
multimedia capabilities for high performance and
handheld functionality. This enables increased
end-user functionality, helps enhance battery life
and provides a rich handheld Internet experience.
Based on the Intel XScale technology with a new,
faster 200MHz internal system bus, the Intel
PXA255 cost-effectively boosts processing speed
and power management over the Intel PXA250
processor. Power management features enable
lower power dissipation; up to 60 percent less
than previous Intel XScale technology-based
products. And the processing capabilities of the
Intel PXA255 enable portable devices to respond
fast to optimized operating systems and performance-intensive applications like MPEG4 video
decode speech and handwriting recognition, and
Java* interpretation. From surfing animated Web
sites to streaming video to mixing MP3s, the Intel
PXA255 processor delivers processing power for
leading performance.

3.68MHz
32KHz
SDRAMControl
Address and
16/32 Data MUXSRAMControl
Burst FlashInterface
VariableLatency I/OPCMCIA/CFCard Control
Alternate BusMasterInterface
JTAG Testand Debugging
Intel.
XScale.
Core200, 300,400MHzPowerManagerClockControllerInterruptController
16 ChannelDMAController
CorePLL Clock Divders RTCOsc.
Color LCDController
Bridge
Real Time ClockTimer/PWM
AC97 InterfaceI2S
I2C
IrDA/UART
SSP/SPI/uWire
MMC/SDH/W Flow
Control UART
Bluetooth UART
Secondary GPIO
USB Client v1.117 Primary GPIOs
Internal Bus
Intel. PXA255 Block Diagram


Intel. PXA255 Processor


Product Brief

The Development Framework for
Wireless Advancement

Outstanding performance and low power consumption are only the beginning when you develop
with the Intel PXA255 processor. Our robust software and hardware development environment
offers a large library of ARM-compliant applications
and tools, as well as an array of wireless operating
systems and tool chains to ease application
development and system prototyping. The Intel.
Integrated Performance Primitives (Intel. IPP) library
promises easy access to an array of low-level,
cross-platform software algorithms for highdemand communications, signal processing,
mathematics and media functions. The Intel IPP's
highly optimized implementation helps reduce
battery consumption through more efficient CPU
execution, enables developers to focus on valueadd features, and speeds time-to-market. With the
Intel PCA development ecosystem, you have the
resources you need to deliver the features your
consumers want-efficiently and effectively.

The Intel. PXA255 Processor Advantage

Feature

Intel. Personal Internet Client
Architecture

The blueprint for next-generation wireless
development

With Intel Personal Internet Client Architecture
(Intel PCA), the next generation of wireless Internet
devices, applications and services are at hand.
This architecture separates communication and
computing sub-systems for parallel development
of related wireless devices hardware and software.
The scalability of the Intel PCA platform enables
compatibility with leading operating systems and
many global wireless standards to make porting
applications or services across devices and platforms easy and efficient. And with the leading performance of optimized Intel. wireless hardware and
software building blocks, Intel makes the promise
of a dynamic, multimedia wireless Internet a reality.

The Intel. PCA Developer Network offers device
manufacturers, service providers and application
developers easy access to the applications, tools
and services that speed time-to-market and
encourage consumer adoption of Intel PCA-based
products. This Web-based community offers platform and software development kits; programming
tools; software building blocks; technical information; marketing program opportunities; community
networking; and market segment exposure to help
developers build value in their Intel PCA products,
applications and services.

Benefit

High-performance, low-power Intel. XScale. core Ideal for enabling enhanced battery life and
at 200, 300 and 400 MHz. New power management performance for high-performance personal digital
for low power assistants and wireless communicators.

Faster internal system bus Improved application performance
(At 400 MHz core, internal bus runs at 200 MHz
vs. 100 MHz on the Intel. PXA250 processor)

Intel Media Processing Technology
Optimized audio and video multimedia functionality

Enhanced Memory Controller
Supports low power 2.5V and 3.3V 32-bit and
16-bit memories including enhanced support for
low-power SDRAM as well as glue-less burst and
page mode interfaces with Synchronous Intel
StrataFlash. Memory

MMC/SD and PCMCIA/CF Card support
Expandable storage and I/O device support

USB Client
Fast host synchronization

1.84 MHz cellular baseband interface
Efficient communications integration
920 Kbps Bluetooth** interface
Broad inter-device communication

Variable latency I/
O
Add-on functionality capabilities

Product Brief


Intel. PXA255 Processor

Support Collateral
Item Description Order Number

Intel. PXA255 Processor 278693
Intel. PXA255 Processor 278694
Intel. XScale. Microarchitecture for the Intel. PXA255 Processor 278796
Intel. PXA255 Processor Electrical, Mechanical, and Thermal 278780
Intel. PXA255 Processor (Update) 278732
Developer's Manual

Design Guide

User’s Manual

Specifications

Intel Access

Developer Web Site
Intel. PCA Processors Home Page
Intel. Technical Documentation Center

General Information Hotline

developer.intel.com
developer.intel.com/design/pca/applicationsprocessors
intel.com/go/techdoc
800 548-4725 7 am–7 pm CST (USA and Canada)
800 628-8686 or 916 356-3104 5 am–5 pm PST
For more information, visit the Intel Web site at: developer.intel.com

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Intel may make changes to specifications, product descriptions, and plans at any time, without notice.

The Intel. PXA255 may contain design defects or errors known as errata, which may cause the product to deviate from published specifications.
Current characterized errata are available upon request.

Intel, the Intel logo, XScale and Intel StrataFlash are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and
other countries.

*Other names and brands may be claimed as the property of others

**Bluetooth is a trademark owned by its proprietor and used by Intel Corporation under license.

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