Intel
®
Core
TM
i7-620LE/UE, i7-610E, i5-520E and Intel
®
Celeron
®
Processor P4500, P4505 Series
April 2010
Datasheet Addendum
Document Number: 323178-002
89
Processor Configuration Registers
6.2.5
RID6 - Revision Identification
B/D/F/Type:
0/6/0/PCI
Address Offset:
8h
Default Value:
10h
Access:
RO
Size:
8 bits
This register contains the revision number of the processor Device 6. These bits are
read only and writes to this register have no effect.
6.2.6
CC6 - Class Code
B/D/F/Type:
0/6/0/PCI
Address Offset:
9-Bh
Default Value:
060400h
Access:
RO
Size:
24 bits
This register identifies the basic function of the device, a more specific sub-class, and a
register- specific programming interface.
Table 28. RID6 - Revision Identification Register
Bit
Access
Default
Value
RST/
PWR
Description
7:0
RO
10h
Core
Revision Identification Number (RID6)
This is an 8-bit value that indicates the revision identification
number for the processor Device 0. For the C-0 Stepping, this
value is 10h.
Table 29. CC6 - Class Code Register
Bit
Access
Default
Value
RST/
PWR
Description
23:16
RO
06h
Core
Base Class Code (BCC)
Indicates the base class code for this device. This code has the
value 06h, indicating a Bridge device.
15:8
RO
04h
Core
Sub-Class Code (SUBCC)
Indicates the sub-class code for this device. The code is 04h
indicating a PCI to PCI Bridge.
7:0
RO
00h
Core
Programming Interface (PI)
Indicates the programming interface of this device. This value
does not specify a particular register set layout and provides no
practical use for this device.