Features
7.5.5.2
Substrate Revision Software ID
This location is a place holder for the Substrate Revision Software ID. Writes to this
register have no effect.
Offset:
50h
Bit
Description
7:0
Substrate Revision Software ID
00h-FFh: Reserved
7.5.5.3
RES6: Reserved 6
This location is reserved. Writes to this register have no effect.
Offset:
51h-52h
Bit
Description
15:0
RESERVED
0000h-FFFFh: Reserved
7.5.5.4
PDCKS: Package Data Checksum
This location provides the checksum of the Package Data Section. Writes to this register
have no effect.
Offset:
53h
Bit
Description
7:0
Package Data Checksum
One-byte checksum of the Package Data Section
00h- FFh: See Section 7.5.10 for calculation of this value.
7.5.6
Part Number Data
This section provides device traceability.
7.5.6.1
PFN: Processor Family Number
This location contains seven ASCII characters reflecting the Intel® family number for
the processor. This number is the same on all Intel Xeon Processor E7-8800/4800/2800
Product Families processors. Combined with the Processor SKU Number below, this is
the complete processor part number. This information is typically marked on the
outside of the processor. If the part number is less than 15 total characters, a leading
space is inserted into the value. The part number should match the information found
in the marking specification found in Chapter 3. Writes to this register have no effect.
Example: A processor with a part number of AT80604******** will have the following
data found at offset 38-3Eh: 41h, 54h, 38h, 30h, 36h, 30h, 34h.
Datasheet Volume 1 of 2
165
INTEL [ INTEL ]
