Intel AT80604004872AA User Manual
Features
150
Intel® Xeon® Processor 7500 Datasheet, Volume 1
7.3.2
Scratch EEPROM
Also available in the memory component on the processor SMBus is an EEPROM which
may be used for other data at the system or processor vendor’s discretion. The data in
this EEPROM, once programmed, can be write-protected by asserting the active-high
SM_WP signal. This signal has a weak pull-down (10 kΩ) to allow the EEPROM to be
may be used for other data at the system or processor vendor’s discretion. The data in
this EEPROM, once programmed, can be write-protected by asserting the active-high
SM_WP signal. This signal has a weak pull-down (10 kΩ) to allow the EEPROM to be
programmed in systems with no implementation of this signal. The Scratch EEPROM
resides in the upper half of the memory component (addresses 80 - FFh). The lower
half comprises the Processor Information ROM (addresses 00 - 7Fh), which is
permanently write-protected by Intel.
resides in the upper half of the memory component (addresses 80 - FFh). The lower
half comprises the Processor Information ROM (addresses 00 - 7Fh), which is
permanently write-protected by Intel.
Part Numbers
54-5Ah
56
Processor Family Number
Seven 8-bit ASCII characters
AT80604
5B-62h
64
Processor SKU Number
Seven 8-bit ASCII characters
003771AA
63-64h
16
Reserved
Reserved for future use
0000h
65h
8
Checksum
1 byte checksum
Add up by byte and take 2’s
complement.
Thermal Reference
66h
8
Recommended THERMALERT_N
assertion threshold value
MSB is Reserved
0h = 0C
1
67h
8
Thermal calibration offset value
MSB is Reserved
0h = 0C
1
68h
8
T
CASE
Maximum
Maximum case temperature
Two 4-bit hex digits (mV)
Two 4-bit hex digits (mV)
69h = 69°C
1
69-6Ah
16
Thermal Design Power
Four 4-bit hex digits (in Watts)
0130h = 130 Watts
1
6Bh
8
Checksum
1 byte checksum
Add up by byte and take 2’s
complement.
Features
6C-6Fh
32
Processor Core Feature Flags
From CPUID function 1, EDX
contents
4387FBFFh
70h
8
Processor Feature Flags
Eight features - Binary
1 indicates functional feature
1 indicates functional feature
10001101
71h
8
Additional Processor Feature
Flags
Eight additional features - Binary
1 indicates functional feature
01110101
72
6/2
Multiprocessor Support
00b = UP, 01b = DP, 10b = S2S,
11b = MP/SMS
00000011 = MP/SMS
73h
4/4
Number of Devices in TAP Chain
First four bits reserved
One 4-bit hex digit - Bits
One 4-bit hex digit - Bits
*0h
1
74-75h
16
Reserved
Reserved for future use
0000h
76h
8
Checksum
1 byte checksum
Add up by byte and take 2’s
complement.
Other
77-7Eh
64
Unit level tracking number
Coded binary
N/A
7Fh
8
Checksum
1 byte checksum
Add up by byte and take 2’s
complement.
Notes:
1. Uses Binary Coded Decimal (BCD) translation.
Offset/
Section
# of
Bits
Function
Notes
Examples