Intel AT80604004881AA User Manual
Features
166
Intel® Xeon® Processor 7500 Datasheet, Volume 1
7.5.4.17
PUDCKS: Processor Uncore Data Checksum
This location provides the checksum of the Processor Uncore Data Section. Writes to
this register have no effect.
this register have no effect.
7.5.5
Package Data
This section contains substrate and other package related data.
7.5.5.1
PREV: Package Revision
This location tracks the highest level package revision. It is provided in an ASCII format
of four characters (8 bits x 4 characters = 32 bits). The package is documented as 1.0,
2.0, etc. If only three ASCII characters are consumed, a leading space is provided in
the data field. Writes to this register have no effect.
of four characters (8 bits x 4 characters = 32 bits). The package is documented as 1.0,
2.0, etc. If only three ASCII characters are consumed, a leading space is provided in
the data field. Writes to this register have no effect.
Example: The Intel® Xeon® processor 7500 series utilizes the first revision of the
LGA-1567 package. Thus, at offset 4C-4F-35h, the data is a space followed by 1.0. In
hex, this would be 20h, 31h, 2Eh, 30h.
LGA-1567 package. Thus, at offset 4C-4F-35h, the data is a space followed by 1.0. In
hex, this would be 20h, 31h, 2Eh, 30h.
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.
register have no effect.
Offset:
4Bh
Bit
Description
7:0
Processor Uncore Data Checksum
One-byte checksum of the Processor Uncore Data Section
00h- FFh: See
for calculation of this value.
Offset:
4Ch-4Fh
Bit
Description
31:24
Character 4
ASCII character or 20h
00h-0FFh: ASCII character
23:16
Character 3
ASCII character
00h-0FFh: ASCII character
15:8
Character 2
ASCII character
00h-0FFh: ASCII character
7:0
Character 1
ASCII character
00h-0FFh: ASCII character
Offset:
50h
Bit
Description
7:0
Substrate Revision Software ID
00h-FFh: Reserved