Intel Xeon L3406 CM80616005010AA User Manual
Product codes
CM80616005010AA
Processor Uncore Configuration Registers
204
Datasheet, Volume 2
4.4.4
CCR—Class Code Register
This register contains the Class Code for the device. Writes to this register have
no effect.
no effect.
Device:
0
Function: 0, 1
Offset:
0Eh
Device:
2
Function: 0, 1
Offset:
0Eh
Device:
3
Function: 0, 1, 4
Offset:
0Eh
Device:
4, 5
Function: 0–3
Offset:
0Eh
Bit
Attr
Default
Description
23:16
RO
06h
Base Class
This field indicates the general device category. For the processor, this field
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
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”.
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
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.