Processor Configuration Registers
B/D/F/Type:
Address Offset:
Reset Value:
Access:
0/1/0–2/PCI
6–7h
0010h
RO, RW1C, RO-V
16 bits
Size:
BIOS Optimal Default
0h
Reset
Value
RST/
PWR
Bit
Access
Description
Received Target Abort Status (RTAS)
This bit is set when a Requester receives a Completion with
Completer Abort Completion Status. On a Function with a Type 1
Configuration header, the bit is set when the Completer Abort is
received by its Primary Side.
12
RO
0b
Uncore
Reset Value of this bit is 0b.
Not Applicable or Implemented. Hardwired to 0. The concept of a
Completer abort does not exist on primary side of this device.
Signaled Target Abort Status (STAS)
This bit is set when a Function completes a Posted or Non-Posted
Request as a Completer Abort error. This applies to a Function
with a Type 1 Configuration header when the Completer Abort
was generated by its Primary Side.
Reset Value of this bit is 0b.
Not Applicable or Implemented. Hardwired to 0. The concept of a
target abort does not exist on primary side of this device.
11
RO
RO
0b
Uncore
Uncore
DEVSELB Timing (DEVT)
This device is not the subtractively decoded device on bus 0. This
bit field is therefore hardwired to 00 to indicate that the device
uses the fastest possible decode.
10:9
00b
Does not apply to PCI Express and must be hardwired to 00b.
Master Data Parity Error (PMDPE)
This bit is set by a Requester (Primary Side for Type 1
Configuration Space header Function) if the Party Error Response
bit in the Command register is 1b and either of the following two
conditions occurs:
• Requester receives a Completion marked poisoned
• Requester poisons a write Request
If the Parity Error Response bit is 0b, this bit is never set.
Reset Value of this bit is 0b.
This bit will be set only for completions of requests encountering
ECC error in DRAM.
Poisoned peer-to-peer posted forwarded will not set this bit. They
are reported at the receiving port.
8
RW1C
0b
Uncore
Uncore
Fast Back-to-Back (FB2B)
Not Applicable or Implemented. Hardwired to 0.
7
6
5
RO
RO
RO
0b
0h
0b
Reserved (RSVD)
66/60MHz capability (CAP66)
Not Applicable or Implemented. Hardwired to 0.
Uncore
Uncore
Capabilities List (CAPL)
Indicates that a capabilities list is present. Hardwired to 1.
4
RO
1b
INTx Status (INTAS)
This bit indicates that an interrupt message is pending internally
to the device. Only PME and Hot-plug sources feed into this
status bit (not PCI INTA–INTD assert and deassert messages).
The INTA Assertion Disable bit, PCICMD1[10], has no effect on
this bit.
3
RO-V
RO
0b
0h
Uncore
Note: INTA emulation interrupts received across the link are
not reflected in this bit.
Note: PCI Express* Hot-Plug is not supported on the processor.
2:0
Reserved (RSVD)
Datasheet, Volume 2
91
INTEL [ INTEL ]
