Digi ConnectCore XP 270 Application guide

Part number/version: 90000759_C
Release date: August 2007
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ConnectCore™XP 270
Hardware Reference

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Contents
n n n n n n n iii
Documentation updates .............................................................. viii
Chapter 1: About the Module ................................................................................... 1
Intel XScale PXA270 ..................................................................... 2
ConnectCore XP 270 module ........................................................... 3
Using the ConnectCore XP 270 chip select.................................... 5
Reset Logic......................................................................... 6
Watchdog .......................................................................... 6
Clock signals ....................................................................... 7
Flash memory ..................................................................... 7
SDRAM memory.................................................................... 7
Power Management Chip for PXA270 processor .............................. 8
Ethernet Controller............................................................... 9
External schematics for SMSC LAN91C111 Ethernet Controller........... 10
1-Wire EEPROM................................................................... 12
USB................................................................................. 14
UARTs.............................................................................. 20
SSP Serial Ports................................................................... 21
I²C Bus Interface ................................................................. 22
PC Card and CompactFlash Interface......................................... 22
MultiMedia Card / SD / SDIO Controller + Memory Stick................... 23
LCD Controller.................................................................... 24
AC’97 Controller ................................................................. 27
Pulse Width Modulator Controller ............................................. 27
Connector pinout ....................................................................... 28
ConnectCore XP pinouts: Connector X1 ...................................... 28

iv
ConnectCore XP pinouts: Connector X2 ...................................... 33
ConnectCore XP 270 GPIOs ............................................................ 36
Bidirectional GPIOs .............................................................. 37
ConnectCore XP 270 GPIO use ................................................. 37
GPIO Controller Register Summary............................................ 46
GPIOs used internally ........................................................... 47
ConnectCore XP 270 Memory Map.................................................... 48
Chapter 2: About the Development Board .................................................51
XScale .................................................................................... 52
What’s on the development board?.................................................. 53
General Precautions............................................................. 54
Installation............................................................................... 55
Replacing the module ........................................................... 55
Setting up basic and optional connections................................... 57
Hardware block diagram .............................................................. 58
LEDs and selection of Ethernet magnetics.......................................... 59
Jumpers .................................................................................. 59
Pin descriptions ......................................................................... 61
ConnectCore XP 270 X1 pinout ....................................................... 77
ConnectCore XP 270 X2 pinout ....................................................... 81
Chapter 3: ConnectCore XP 270 Customization ..................................87
Adding custom hardware to the development board ............................. 88
Custom development board design check list...................................... 88
Appendix A: ConnectCore XP 270 Module Specifications 91
Mechanical dimensions ................................................................ 92
Environmental information............................................................ 93
Power requirements.................................................................... 94
Layout considerations.................................................................. 94
Appendix A: JTAG-Booster for Intel XScale PXA270 97
Overview ................................................................................. 98
System requirements................................................................... 98

v
CD files ................................................................................... 99
Connecting your PC to the target system .......................................... 99
Initialization file JTAG270.INI .......................................................100
Supported Flash devices ..............................................................100
JTAG270 Parameter Description ....................................................101
Program a Flash Device ...............................................................103
Use: JTAG270 /P filename [optionlist] ......................................103
Options ...........................................................................103
Example with Intel PXA270...........................................................106
Support for Windows NT, Windows 2000 and Windows XP ......................107
Installation on a clean system ................................................108
Installation with an already installed version 5.x/6.x of Kithara .......108

Using This Guide
vii
Review this section for basic information about the guide you are using, as
well as general support and contact information.
About this guide
This guide provides information about the Digi ConnectCore XP 270, a fully
integrated system-on-chip solution on a 67.6 x 36.7mm card.
The ConnectCore XP 270 module is built on the Intel XScale processor PXA270,
flash and SDRAM memory, and the SMSC LAN91C111 Ethernet controller.
What’s in this guide
This table shows where you can find specific information in this guide.
To read about See
ConnectCore XP 270 module Chapter 1, “About the Module”
ConnectCore XP development board Chapter 2, “About the Development Board”
Customizing the ConnectCore XP 270 Chapter 3, “ConnectCore XP 270
Customization”
Module specifications Appendix A, “ConnectCore XP 270
Module Specifications
Using This Guide

Documentation updates
viii ConnectCore XP 270 Hardware Reference, Rev. C 08/2007
Conventions used in this guide
This table describes the typographic conventions used in this guide:
Related documentation
Intel® PXA27x Processor Family
Developer’s Manual
October 2004
Order Number: 280000-002
Documentation updates
Digi occasionally provides documentation updates on the Web site (www.digi.com/
support).
Be aware that if you see differences between the documentation you received in your
package and the documentation on the Web site, the Web site content is the latest
version.
Using the JTAG-Booster Appendix B, “JTAG -Booster for Intel
XScale PXA270”
To read about See
This convention Is used for
italic type Emphasis, new terms, variables, and document titles.
monospaced type Filenames, pathnames, and code examples.

www.digi.com ix
Customer support
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comments and recommendations about our products or documentation, use the
contact information listed in this table:
For Contact information
Technical support United States: [phone]
Other locations: [phone]
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