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AR# 16911

Virtex-II Pro PowerPC - Does DCR share the same range of PLB/OPB space? What is the addressable range for DCR peripheral?

Description

General Description:  

Does DCR share the same range of PLB/OPB space? What is the addressable range for DCR?

Solution

The DCR address range is different from the PLB and OPB space. 

 

There is a 10-bit DCR address bus from the PowerPC Processor Block. Consequently, the DCR addressable range for the DCR peripheral should be 0x000 ~ 0x3FF. Note that these addresses are aligned to a word (32-bit) boundary, and the PLB/OPB space addresses are aligned to byte.

AR# 16911
Date Created 09/03/2007
Last Updated 05/15/2014
Status Archive
Type General Article