Intel 7140N LF80550KF093007 データシート
製品コード
LF80550KF093007
Dual-Core Intel® Xeon® Processor 7100 Series Datasheet
107
Features
7.4.3.7.2
RES9: Reserved 9
This location is reserved. Writes to this register have no effect.
7.4.3.7.3
TRDCKS: Thermal Reference Data Checksum
This location provides the checksum of the Thermal Reference Data Section. Writes to
this register have no effect.
this register have no effect.
7.4.3.8
Feature Data
This section provides information on key features that the platform may need to
understand without powering on the processor.
understand without powering on the processor.
7.4.3.8.1
PCFF: Processor Core Feature Flags
This location contains a copy of results in EDX[31:0] from Function 1 of the CPUID
instruction. These details provide instruction and feature support by product family. A
decode of these bits is found in the Cedar Mill Processor Family BIOS Writers Guide or
the AP-485 Intel
instruction. These details provide instruction and feature support by product family. A
decode of these bits is found in the Cedar Mill Processor Family BIOS Writers Guide or
the AP-485 Intel
®
Processor Identification and CPUID Instruction application note.
Writes to this register have no effect.
7.4.3.8.2
PFF: Processor Feature Flags
This location contains additional feature information from the processor. Writes to this
register have no effect.
register have no effect.
Note:
Bit 5 and Bit 6 are mutually exclusive (only one bit will be set).
Offset:
71h-72h
Bit
Description
15:0
RESERVED 9
Offset:
73h
Bit
Description
7:0
Thermal Reference Data Checksum
One Byte Checksum of the Header Section
00h- FFh: See
for calculation of the value
Offset:
74h-77h
Bit
Description
31:0
Processor Core Feature Flags
0000h-FFFFF: Feature Flags
Offset:
78h
Bit
Description
7
Multi-Core (set if the processor is a dual core processor)
6
Serial signature (set if there is a serial signature at offset 4D - 54h)
5
Electronic signature present (set if there is a electronic signature at 4D - 54h)
4
Thermal Sense Device present (set if an SMBus thermal sensor on package)