AR #16911 - Virtex-II Pro PowerPC - Does DCR share the same range of PLB/OPB space? What is the addressable range for DCR peripheral?
Virtex-II Pro PowerPC - Does DCR share the same range of PLB/OPB space? What is the addressable range for DCR peripheral?
| AR# | 16911 |
| Part | PowerPC_Arch |
| Last Modified | 2003-03-26 00:00:00.0 |
| Status | Active |
| Keywords | Virtex-II Pro, V2P, PPC, PowerPC, DCR |
Description
Keywords: Virtex-II Pro, V2P, PPC, PowerPC, DCR
Urgency: Standard
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.