HP A2Y15AV Manuale Utente

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Processor Configuration Registers
52
Datasheet, Volume 2
2.5.5
RID—Revision Identification Register
This register contains the revision number of Device 0. These bits are read only and 
writes to this register have no effect. 
2.5.6
CC—Class Code Register
This register identifies the basic function of the device, a more specific sub-class, and a 
register-specific programming interface.
B/D/F/Type:
0/0/0/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:
0/0/0/PCI
Address Offset:
9–Bh
Reset Value:
060000h
Access:
RO
Size:
24 bits
Bit
Access
Reset 
Value
RST/
PWR
Description
23:16
RO
06h
Uncore
Base Class Code (BCC)
This is an 8-bit value that indicates the base class code for the 
Host Bridge device. This code has the value 06h, indicating a 
Bridge device.
15:8
RO
00h
Uncore
Sub-Class Code (SUBCC)
This is an 8-bit value that indicates the category of Bridge into 
which the Host Bridge device falls. The code is 00h indicating a 
Host Bridge.
7:0
RO
00h
Uncore
Programming Interface (PI)
This is an 8-bit value that 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.