System Management Feature Specifications

Table 6-4. Processor Information ROM Format (Sheet 3 of 4)

Offset/

# of

Function

Notes

 

Examples

Section

Bits

 

 

 

 

 

 

 

 

 

 

 

Package

 

 

 

 

 

 

 

 

 

 

37h

32

Package Revision

Four 8-bit ASCII characters

Itanium® 2 Package =

 

 

 

 

INT2b, (1.50 GHz 4MB

 

 

 

 

and above) = INT3b:

 

 

 

 

37h = I

 

 

 

 

38h = N

 

 

 

 

39h = T

 

 

 

 

• 3Ah = 2 or 3

 

 

 

 

 

 

3Bh

2

Substrate Revision

2-bit revision number

00

 

 

 

Software ID

 

 

 

 

 

 

 

 

 

3Ch

8

Reserved

Reserved for future use

00h

 

 

 

 

 

 

3Dh

8

Checksum

1 byte checksum

Add up by byte and

 

 

 

 

take 2’s complement

 

 

 

 

 

 

Part Numbers

 

 

 

 

 

 

 

 

 

3Eh

56

Processor Part Number

Seven 8-bit ASCII characters

Itanium 2 (900 MHz,

 

 

 

 

1.0 GHz) = 80542KC.

 

 

 

 

Itanium 2 processor

 

 

 

 

(1.30 GHz -1.66 GHz) =

 

 

 

 

80543KC:

 

 

 

 

3Eh = “8”

 

 

 

 

3Fh = “0”

 

 

 

 

40h = “5”

 

 

 

 

41h = “4”

 

 

 

 

• 42h = “2” or “3”

 

 

 

 

43h = “K”

 

 

 

 

44h = “C”

 

 

 

 

 

45h

64

Processor Electronic

64-bit identification number

May have padded

 

 

Signature

 

zeros

 

 

 

 

 

 

4Dh

168

Reserved

Reserved for future use

x0h

 

 

 

 

 

 

62h

8

Checksum

1 byte checksum

Add up by byte and

 

 

 

 

take 2’s complement

 

 

 

 

 

 

Thermal Reference

 

 

 

 

 

 

 

 

63h

8

Upper Temp Reference

Hex value of thermal upper temp

Default = 113 for 1.66

 

 

Byte

limit

GHz through 1.5

 

 

 

 

GHz/4MB. Default =

 

 

 

 

105 for all others.

 

 

 

 

 

64h

8

Thermal Calibration Offset

Number of degrees in error (±)

Default = 0

 

 

Byte Present

 

 

 

 

 

 

 

 

 

65h

8

Reserved

Reserved for future use

00h

 

 

 

 

 

 

66h

8

Checksum

1 byte checksum

Add up by byte and

 

 

 

 

take 2’s complement.

 

 

 

 

 

 

Features

 

 

 

 

 

 

 

 

 

 

67h

32

IA-32 Processor Core

From 32 bit CPUID

4387FBFFh

 

 

Feature Flags

 

 

 

 

 

 

 

 

6Bh

64

Reserved

Reserved (Processor core

0000 0000 6380 811Bh

 

 

 

feature flags implemented in the

 

 

 

 

 

Itanium® processor family)

 

 

84

Datasheet

Page 84
Image 84
Intel Itanium 2 Processor manual Processor Information ROM Format Sheet 3, Offset Function Examples Section Bits Package