EW31244SL7QV Datasheet, PDF (205/252 Pages) Intel Corporation – Intel® 31244 PCI-X to Serial ATA Controller

Intel^® 31244 PCI-X to Serial ATA Controller
Programming Interface
5.10.9.3
Table 120.
SU PCI DPA Features Register - SUPDFR
The SU PCI DPA Features Register is a 16-bit register. The content of the SU PCI DPA Features
Register is a command parameter. The content of this register must be loaded before the SU PCI
DPA Command Register is written. The content of the SU PCI DPA Features Register is command
dependent. Refer to the AT Attachment with Packet Interface-6 (ATA/ATAPI-6) Specification.
SU PCI DPA Features Register - SUPDFR
PCI
Attributes
15
12
8
4
0
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bit
15:00
DPA Mode BAR0 Offset
Port 0 = 206H, Port 1 = 406H
Port 2 = 606H, Port 3 = 806H
Attribute Legend:
RV = Reserved
PR = Preserved
RS = Read/Set
WO = Write Only
RW = Read/Write
RC = Read Clear
RO = Read Only
NA = Not Accessible
Default
00H
Description
Features - This register is command dependent. For example, it may be a parameter as an extension to
the IDE Command Register.
Developer’s Manual
April 2004
205