Intel PXA250 and PXA210 manual SA-1110/Applications Processor, Migration

SA-1110/Applications Processor
Migration	A

The Intel® PXA250 an PXA210 ap plications processors represent the next generation follow-on to Intel® StrongARM* SA-1110 product. This appendix highlights the migration path needed to change an SA-1110 design to one that uses the applications processor.

The majority of application code running on the SA-1110 will directly run on the applications processor, but there are substantial differences in hardware implementation and low-level coding, especially device configuration, that need to be noted.

The applications processor has numerous new hardware and software features that substantially benefit a handheld product design. The applications processor can be considered a superset of the SA-1110, but with so many new features direct socket compatibility is impractical.

For a detailed analysis of the differences between these products, refer to the full specifications of each device:

•SA-1110 Advanced Developers Manual, Order# 278240 [http://developer.intel.com]

•Intel® PXA250 and PXA210 Applications Processors Developer’s Manual, Order# 278522

•ARM* Architecture Reference Manual, Order# ARM DDI 0100D-10

•Intel 80200 Developers’ manual, Order# 273411-002 [http://developer.intel.com]

Or later updated versions of any of the above.

This appendix is separated into sections that focus on three different issues:

1.SA-1110 hardware migration issues

—Hardware Compatibility

—Signal Changes

—Power Delivery

—Package

—Clocks

—UCB1300

2.SA-1110 software migration issues

—Software Compatibility

—Address space

—Page Table Changes

—Configuration registers

—DMA

3.Using new features in the applications processor

PXA250 and PXA210 Applications Processors Design Guide A-1