HP A2Y15AV Manuale Utente

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Processor Configuration Registers
152
Datasheet, Volume 2
2.8.5
RID2—Revision Identification Register
This register contains the revision number for Device 2 Functions 0. These bits are read 
only and writes to this register have no effect.
2.8.6
CC—Class Code Register
This register contains the device programming interface information related to the Sub-
Class Code and Base Class Code definition for the IGD. This register also contains the 
Base Class Code and the function sub-class in relation to the Base Class Code.
B/D/F/Type:
0/2/0/PCI
Address Offset:
8h
Reset Value:
00h
Access:
RO-FW
Size:
8 bits
Bit
Access
Reset 
Value
RST/
PWR
Description
7:0
RO-FW
0h
Uncore
Revision Identification Number (RID) 
Refer to the Mobile 3rd Generation Intel
®
 Core™ Processor 
Family Specification Update for the value of the RID register. 
B/D/F/Type:
0/2/0/PCI
Address Offset:
9–Bh
Reset Value:
030000h
Access:
RO-V, RO
Size:
24 bits
Bit
Access
Reset 
Value
RST/
PWR
Description
23:16
RO-V
03h
Uncore
Base Class Code (BCC) 
This is an 8-bit value that indicates the base class code.
03h = Display Controller.
15:8
RO-V
00h
Uncore
Sub-Class Code (SUBCC) 
00h = VGA compatible.
7:0
RO
00h
Uncore
Programming Interface (PI) 
00h = Display Controller.