Datasheet
37
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:
0
Function:
0-1
Offset:
08h
Device:
2
Function:
0-1, 4-5
Offset:
08h
Device:
3
Function:
0-2, 4
Offset:
08h
Device:
4-6
Function:
0-3
Offset:
08h
Bit
Type
Reset
Value
Description
7:0
RO
0h
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:
0
Function:
0-1
Offset:
09h
Device:
2
Function:
0-1, 4-5
Offset:
09h
Device:
3
Function:
0-2, 4
Offset:
09h
Device:
4-6
Function:
0-3
Offset:
09h
Bit
Type
Reset
Value
Description
23:16
RO
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
RO
0
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
RO
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.
Summary of Contents for BX80605I7870 - Core i7 2.93 GHz Processor
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