6.2.4
Command Pointer Ring 1 Base Address Register
This register is the base address of the command pointer ring (CPR) 1 in host memory. The
820x uses this base address plus an offset to fetch a command pointer, and then uses the
command pointer to fetch the corresponding command structure. The CPR base address
must be 8-byte aligned, and the command pointer in CPR must be 512-byte aligned.
Type:
Offset
Read/Write
x‘0210’
CPR1_BASEADR_H[31:0]
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
CPR1_BASEADR_L[31:0]
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Field Name
Description
Bits
Reset
CPR1_BASEADR_H
[31:0]
Command pointer ring 1 base address high double
word
63:32
0
CPR1_BASEADR_L
[31:0]
Command pointer ring 1 base address low double
word
31:0
0
820x – Data Sheet, DS-0157-D
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