EW31244SL7QV Datasheet, PDF (246/252 Pages) Intel Corporation – Intel® 31244 PCI-X to Serial ATA Controller

Intel^® 31244 PCI-X to Serial ATA Controller
Programming Interface
5.10.12.22 SU PCI DPA Device DMA Buffer Identifier
Low Register - SUPDDDBILR
Table 156.
The SU PCI DPA Device DMA Buffer Identifier Low Register is the first DWORD parameter of
the SATA DMA Setup Device-to-Host FIS. Refer to the Serial ATA Specification.
SU PCI DPA Device DMA Buffer Identifier Low Register - SUPDDDBILR
PCI
Attributes
31
28
24
20
16
12
8
4
0
ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro
PCI IDE Mode Offset
= 084H,
DPA Mode Offset
Port 0 = 384H, Port 1 = 584H
Port 2 = 784H, Port 3 = 984H
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 of the First Party Setup FIS received from a device.
246
April 2004
Developer’s Manual