EP80579 Datasheet, PDF (854/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
Table 23-50. Offset 00h: HCAP – HBA Capabilities Register (Sheet 2 of 2)
Description:
View: PCI
BAR: ABAR
Bus:Device:Function: 0:31:2
Offset Start: 00h
Offset End: 03h
Size: 32 bit
Default: Variable
Power Well: Core
Bit Range
14
13
12 : 08
07 : 06
05
04 : 00
Bit Acronym
Bit Description
Sticky
SSC
PSC
NCS
Reserved
SXS
NDS
Slumber State Capable (SSC): The SATA controller
supports the slumber state.
Partial State Capable (PSC): The SATA controller supports
the partial state.
Number of Command Slots (NCS): This register field is
read only = 1Fh indicating support for 32 slots.
Reserved
Supports External SATA (SXS): When set to '1', indicates
that the HBA has one or more Serial ATA ports that has a
signal only connector that is externally accessible. If this bit
is set, software may refer to the PxCMD.ESP bit to determine
whether a specific port has its signal connector externally
accessible as a signal only connector (i.e. power is not part of
that connector). when the bit is cleared to '0', indicates that
the HBA has no Serial ATA ports that have a signal only
connector externally accessible.
Number of Devices (NDS): Indicates support for 2
devices.
Bit Reset
Value
1h
1h
1Fh
0h
0h
1h
Bit Access
RWO
RWO
RO
RO
RWO
RO
Intel^® EP80579 Integrated Processor Product Line Datasheet
854
August 2009
Order Number: 320066-003US