Intel AT80604004881AA User Manual

Page of 172
Intel® Xeon® Processor 7500 Datasheet, Volume 1
173
Features
7.5.8.6
RES9: Reserved 9
This location is reserved. Writes to this register have no effect.
7.5.8.7
TRDCKS: Thermal Reference Data Checksum
This location provides the checksum of the Thermal Reference Data Section. Writes to 
this register have no effect.
7.5.9
Other Data 
This section contains a large reserved area, and items added after the original format 
for the Intel® Xeon® processor 7500 series PIROM was set.
7.5.9.1
PS/ESIG: Processor Serial/Electronic Signature
This location contains a 64-bit identification number. The value in this field is either a 
serial signature or an electronic signature. Writes to this register have no effect. 
7.5.9.2
ODCKS: Other Data Checksum
This location provides the checksum for the Other Data Section. Writes to this register 
have no effect.
Offset:
74h-75h
Bit
Description
15:0
RESERVED
0000h-FFFFh: Reserved
Offset:
76h
Bit
Description
7:0
Thermal Reference Data Checksum
One-byte checksum of the Thermal Reference Data Checksum
00h- FFh: See 
 for calculation of this value.
Offset:
77h-7Eh
Bit
Description
63:0
Processor Serial/Electronic Signature
0000000000000000h-FFFFFFFFFFFFFFFFh: Electronic Signature
Offset:
7Fh
Bit
Description
7:0
Other Data Checksum
One-byte checksum of the Other Data Checksum
00h- FFh: See 
 for calculation of this value.