Processor Configuration Registers
B/D/F/Type:
Address Offset:
Reset Value:
Access:
0/1/0–2/PCI
80–83h
C8039001h
RO, RO-V
32 bits
Size:
Reset
Value
RST/
PWR
Bit
Access
Description
Auxiliary Current (AUXC)
24:22
RO
000b
Uncore
Hardwired to 0 to indicate that there are no 3.3Vaux auxiliary
current requirements.
Device Specific Initialization (DSI)
21
20
19
RO
RO
RO
0b
0b
0b
Uncore
Uncore
Uncore
Hardwired to 0 to indicate that special initialization of this device
is NOT required before generic class device driver is to use it.
Auxiliary Power Source (APS)
Hardwired to 0.
PME Clock (PMECLK)
Hardwired to 0 to indicate this device does NOT support PME#
generation.
PCI PM CAP Version (PCIPMCV)
A value of 011b indicates that this function complies with
Revision 1.2 of the PCI Power Management Interface
Specification.
(Was previously hardwired to 02h to indicate there are 4 bytes of
power management registers implemented and that this device
complies with revision 1.1 of the PCI Power Management
Interface Specification.)
18:16
RO
011b
Uncore
Pointer to Next Capability (PNC)
This contains a pointer to the next item in the capabilities list. If
MSICH (CAPL[0] @ 7Fh) is 0, then the next item in the
capabilities list is the Message Signaled Interrupts (MSI)
capability at 90h. If MSICH (CAPL[0] @ 7Fh) is 1, then the next
item in the capabilities list is the PCI Express capability at A0h.
15:8
7:0
RO-V
RO
90h
01h
Uncore
Uncore
Capability ID (CID)
Value of 01h identifies this linked list item (capability structure)
as being for PCI Power Management registers.
2.6.26
PM_CS—Power Management Control/Status Register
B/D/F/Type:
Address Offset:
Reset Value:
Access:
0/1/0–2/PCI
84–87h
00000008h
RO, RW
32 bits
Size:
BIOS Optimal Default
000000h
Reset
Value
RST/
PWR
Bit
Access
Description
31:16
RO
0h
0b
Reserved (RSVD)
PME Status (PMESTS)
This bit indicates that this device does not support PME#
generation from D3cold.
15
RO
RO
RO
Uncore
Uncore
Uncore
Data Scale (DSCALE)
This field indicates that this device does not support the power
management data register.
14:13
12:9
00b
0h
Data Select (DSEL)
This field indicates that this device does not support the power
management data register.
Datasheet, Volume 2
105
INTEL [ INTEL ]
