Intel i7-2600 CM8062300834302S User Manual

Product codes
CM8062300834302S
Page of 296
Processor Configuration Registers
14
Datasheet, Volume 2
2.2
PCI Devices and Functions on Processor
Note:
1.
Not all devices are enabled in all configurations.
2.
See 
 for additional information on graphics DID 
values.
Table 2-2.
Register Attribute Modifiers
Attribute 
Modifier
Applicable 
Attribute
Description
S
RO (w/ -V)
Sticky: These bits are only re-initialized to their default value by a "Power Good 
Reset". 
Note:
Does not apply to RO (constant) bits.
RW
RW1C
RW1S
-K
RW
Key: These bits control the ability to write other bits (identified with a 'Lock' 
modifier)
-L
RW
Lock: Hardware can make these bits "Read Only" via a separate configuration 
bit or other logic. 
Note:
Mutually exclusive with 'Once' modifier.
WO
-O
RW
Once: After reset, these bits can only be written by software once, after which 
they become "Read Only". 
Note:
Mutually exclusive with 'Lock' modifier and does not make sense with 
'Variant' modifier.
WO
-FW
RO
Firmware Write: The value of these bits can be updated by firmware (PCU, 
TAP, etc.).
-V
RO
Variant: The value of these bits can be updated by hardware. 
Note:
RW1C and RC bits are variant by definition and therefore do not need 
to be modified.
RW
Description
DID
Device
Function
DRAM Controller
0100h 
0
0
PCI Express Controller
0101h
1
0
PCI Express Controller
0105h
1
1
PCI Express Controller
0109h
1
2
Integrated Graphics Device
2
0102h 
 
2
0
PCI Express Controller
010Dh
6
0