cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 260

• Manufacturer Part Number: cs5535
• Description: Geode Cs5535 Companion Multi-function South Bridge
• Manufacturer: National Semiconductor Corporation

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ATAC Register Descriptions
5.4.3.3
ATAC I/O Address 04h
Type
Reset Value
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31:2
Bit
1:0
Bus Master 0 PRD Table Address - Primary (ATAC_BM0_PRD)
Name
PRD_PNTR
RSVD
R/W
00000000h
Description
Pointer to the Physical Region Descriptor Table. This register is a PRD table pointer
for IDE Bus Master 0.
When written, this register points to the first entry in a PRD table. Once IDE Bus Master
0 is enabled (Command Register bit 0 = 1), it loads the pointer and updates this register
to the next PRD by adding 08h.
When read, this register points to the next PRD.
Reserved. Set to 0.
(Continued)
ATAC_BM0_PRD Bit Descriptions
ATAC_BM0_PRD Register Map
PRD_PNTR
260
9
8
7
6
5
4
3
2
Revision 0.8
RSVD
1
0