Intel Xeon 7130N LF80550KF0878M Data Sheet
Product codes
LF80550KF0878M
Features
Dual-Core Intel
®
Xeon
®
Processor 7000 Series Datasheet
95
Checksums are automatically calculated and programmed by Intel. The first step in calculating the
checksum is to add each byte from the field to the next subsequent byte. This result is then negated
to provide the checksum.
checksum is to add each byte from the field to the next subsequent byte. This result is then negated
to provide the checksum.
Example: For a byte string of AA445Ch, the resulting checksum will be B6h.
AA = 10101010
44 = 01000100
5C = 0101100
AA + 44 + 5C = 01001010
Negate the sum: 10110101 +1 = 101101 (B6h)
§
Table 7-22. 128 Byte ROM Checksum Values
Section
Checksum Address
Header
0Dh
Processor Data
15h
Processor Core Data
24h
Cache Data
31h
Package Data
37h
Part Number Data
6Fh
Thermal Reference Data
73h
Feature Data
7Fh
Other Data
None Defined