IES

Embest PXA270DB Evaluation Board

The Intel®PXA270 processor is designed to meet the growing demands of a new generation of leading-edge embedded products and i s ideal for the low-power framework of battery-powered devices. It is the first Intel XScale® technology-based processor to include Intel® Wireless MMX™ technology which is able to work up to 520MHz. This featured technology enables high-performance multimedia acceleration with an industry proven instruction set. Another innovative feature is the Intel® Quick Capture technology, which provides one of the industry's most flexible and powerful camera interfaces for capturing digital images and video. The new capabilities of Wireless Intel SpeedStep®Power Manager technology provide a quantum leap forward in low power operation, while maintaining the highest levels of performance.



Embest XScale PXA270 Evaluation Board is another release of high-end ARM development platform after Embest PXA255DB board. The board takes all features of Intel XScale PXA270 processor and full Bus and peripheral signals are expanded through interfaces on board including FFUART, BTUART, IrDA UART, SD/MMC/SDIO, CF, UART for TTL, LCD, power, USB, Ethernet, JTAG, Camera & Keyboard, Bus expansion, etc. The board has a flexible design using a CPU board and an expansion board. It is also capable of supporting Embest PXA255 CPU board. This is convenient for users to lighten the burden on development and user can update and upgrade their boards easily and effectively protects customers' prophase resources. This would be a good solid reference and evaluation board for applications like PDA, TPC, PMP, audio system, fingerprint identification, car navigation, media play, industrial control, etc.

Hardware Specification

• Dimensions: 67x39mm (CPU board), 140x140mm (expansion board)


• Working temperature: –40°C to 85°C ambient temperature range available


• Processor: Intel XScale PXA270 can work up to 520MHz


• Power input: DC +5.0V or USB power supply


• 64M SDRAM, Intel Strata Flash 32MB


• Audio in (Mic input) and audio out (earphone output)


• 3.5" TFT LCD


• Touch screen


• Three UARTs (one for Full Function UART, one for Bluetooth UART and one for IrDA UART)


• JTAG interface (support ARM standard JATG interface and customer-built JTAG interface)


• USB (support USB1.1 slave, USB1.1 Host


• CF card interface 


• SD/MMC, hardware supports SDIO, supports SD/MMC Ethernet Image Download


• 10/100M Ethernet interface (supports Ethernet Debug , Ethernet Image Download)


• 6 keys (one for reset, one for power on/off, the other four for user defined)


• 2 LEDs (one for power indication, the other is controlled by GPIO)


• Expansion interfaces (LCD, Touch Screen, PWM, BUS, UART, Camera&Keyboard)

Functional Block Diagram

Interface Introduction

PXA270 CPU Board

Wanxin 3.5" TFT LCD

Manufacturer: Wanxin Display area: 70.08×52.56mm Drive mode: TFT active array Color: 16.7M-color Resolution: 240×320 Image processing: RGB vertical scanning Image size: 219×73µm Module size: 82×92 mm Weight: 55g Signal interface: SPI+RGB 24-bit Touch: four-wire resistance type Backlight: white light LED

Relative Documentation and Links

Embest PXA270DB Evaluation Board Overview

Intel XScale PXA270 datasheet