Intel 7140M LF80550KG096007 Ficha De Dados

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LF80550KG096007
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Intel® Xeon® Processor 7400 Series Datasheet
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.
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 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.
Note:
Bit 5 and Bit 6 are mutually exclusive (only one bit will be set).
Bits are set when a feature is present, and cleared when they are not.
Example: The Intel® Xeon® Processor 7400 Series does not support a SMBus 
Thermal Sense Device, supports either a Serial Signature or Electronic signature, 
supports an OEM EEPROM, supports Core VID and supports an L3 Cache. Offset 78h 
will contain A7h or C7h (167 or 199 decimal).
7.4.3.8.3
PTCI: Processor Thread and Core Information
This location contains information regarding the number of cores and threads on the 
processor. Writes to this register have no effect.
Example: The Intel® Xeon® Processor 7400 Series has two, four or six cores and one 
thread per core. Therefore, this register will have a value of 9h, 11h or 19h.
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 multi 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)
3
Reserved
2
OEM EEPROM present (set if there is a scratch ROM at offset 80 - FFh)
1
Core VID present (set if there is a VID provided by the processor)
0
L3 Cache present (set if there is a level 3 cache on the processor)