Intel Xeon E7440 AD80583QH056007 Ficha De Dados
Códigos do produto
AD80583QH056007
Features
130
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.
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
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.
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).
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.
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.
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)