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PXA250 and PXA210 Applications Processors Design Guide 1-1
Introduction 1
This document presents design recommendations, board schematics, and debug recommendations
for the Intel® PXA250 and PXA210 applications processors. The PXA250 applications processor
is the 32-bit version of the device and the PXA210 applications processor is the 16-bit version.
This document refers to both versions as the applications processor. When differences are
discussed, the specific applications processor is called by name.
The guidelines presented in this document ensure maximum flexibility for board designers, while
reducing the risk of board-related issues. Use the schematics in Appendix B, “Example Form
Factor Reference Design Schematic Diagrams” as a reference for your own design. While the
included schematics cover a specific design, the core schematics remain the same for most
PXA250 and PXA210 applications processor based platforms. Consult the debug
recommendations when debugging an applications processor based system. To ensure the correct
implementation of the debug port (refer to Section 9 for more information), these debug
recommendations should be understood before completing board design, in addition to other debug
features.
1.1 Functional Overview
The PXA250 and PXA210 applications processors are the first integrated-system-on-a-chip design
based on the Intel® XScale™ microarchitecture. The PXA250 and PXA210 applications
processors integrate the Intel® XScale™ microarchitecture core with many peripherals to let you
design products for the handheld market.
Figure 1-1 on page 1-2 is a block diagram of the applications processor.
Table 1-1. Revision History
Date Revision Description
Nov 2000 0.1 Initial Release: RS-Intel
®
PXA250 Platform Design Guide
Nov 2000 0.2 Second draft
Jan 2001 0.3
Corrected name of FFRTS in Table 1-4.
Reorganized Table 1-4 and Table 1-5 for readability.
May 2001 0.6 Added reference to PXA210 and performed editorial clean-up.
February 2002 1.0 Public Release
Table 1-2. Related Documentation
Document Title Order Number
Intel® PXA250 and PXA210 Applications Processors Developer’s Manual 278522
Intel® PXA250 and PXA210 Applications Processors Electrical, Mechanical,
and Thermal Specification
278524