EW31244SL7QV Datasheet, PDF (240/252 Pages) Intel Corporation – Intel® 31244 PCI-X to Serial ATA Controller

Intel^® 31244 PCI-X to Serial ATA Controller
Programming Interface
5.10.12.16 SU PCI DPA Host DMA Buffer Identifier
Low Register - SUPDHDBILR
Table 150.
The SU PCI DPA Host DMA Buffer Identifier Low Register is the first DWORD parameter of the
SATA DMA Setup Host-to-Device FIS. Refer to the Serial ATA Specification.
SU PCI DPA Host DMA Buffer Identifier Low Register - SUPDHDBILR
PCI
Attributes
31
28
24
20
16
12
8
4
0
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
PCI IDE Mode Offset
= 06CH,
DPA Mode Offset
Port 0 = 36CH, Port 1 = 56CH
Port 2 = 76CH, Port 3 = 96CH
Attribute Legend:
RV = Reserved
PR = Preserved
RS = Read/Set
RW = Read/Write
RC = Read Clear
RO = Read Only
NA = Not Accessible
Bit
31:00
Default
Description
0000_0000H
Buffer Identifier Low - This is the lower DWORD of a 64-bit buffer identifier, which may be used to
identify a DMA buffer region in host memory.
240
April 2004
Developer’s Manual