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REF: BB_SRM_xM BeagleBoard-xM System

Reference Manual

Revision A2

Page 16 of 164

Here is a brief explanation for the reason behind this.

We are having yield issues with the current batch of Micron parts. We are hoping that the

next batch of production versions will work. However, the dates are continuing to ship so

we do not know when we will receive those parts. So, we are starting production with the

Numonyx parts and will continue to build using those parts until such time as the Micron

parts are proved to be working, have acceptable yields, and we have steady supply. There

are no issues with the -00 assemblies that use the Micron parts. We just cannot afford to

scrap all those boards due to poor yields.

All features and capabilities are the same between the two assemblies with the exception

that in theory the Micron parts should run at 200MHz.

2.2.2 Software Changes

Following are the changes to the SW.

o Use of a universal Beagle XLoader and UBoot. These will work on any Beagle

made. They include support for the 512MB DDR and the removal of the NAND

from the –xM board.

o A demo version of the Angstrom desktop distribution.

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