Intel Core™ i7-860 Processor (8M Cache, 2.80 GHz) BX8060517860 User Manual

Product codes

BX8060517860

Datasheet

Register Description

2.5.3

RID - Revision Identification Register

This register contains the revision number of the processor. The Revision ID (RID) is a
traditional 8-bit Read Only (RO) register located at offset 08h in the standard PCI
header of every PCI/PCI Express compatible device and function.

2.5.4

CCR - Class Code Register

This register contains the Class Code for the device. Writes to this register have no
effect.

Device:

Function:

0-1

Offset:

08h

Device:

Function:

0-1, 4-5

Offset:

08h

Device:

Function:

0-2, 4

Offset:

08h

Device:

4-6

Function:

0-3

Offset:

08h

Bit

Type

Reset

Value

Description

7:0

Revision Identification Number

Refer to the

Intel

Core™ i7 Processor Extreme Edition and Intel

Core™ i7

Processor Specification Update

for the value of the Revision ID Register.

Device:

Function:

0-1

Offset:

09h

Device:

Function:

0-1, 4-5

Offset:

09h

Device:

Function:

0-2, 4

Offset:

09h

Device:

4-6

Function:

0-3

Offset:

09h

Bit

Type

Reset

Value

Description

23:16

06h

Base Class
This field indicates the general device category. For the processor, this field is

hardwired to 06h, indicating it is a “Bridge Device”.

15:8

Sub-Class
This field qualifies the Base Class, providing a more detailed specification of

the device function.
For all devices the default is 00h, indicating “Host Bridge”.

7:0

Register-Level Programming Interface
This field identifies a specific programming interface (if any), that device

independent software can use to interact with the device. There are no such

interfaces defined for “Host Bridge” types, and this field is hardwired to 00h.