Datasheet

Register Description
R
130 Datasheet
3.9.5 RID – Revision Identification Register (Device #0)
Address Offset: 08h
Default Value: 02h
Access: Read Only
Size: 8 bits
This register contains the revision number of the GMCH/MCH. These bits are Read Only; Writes
to this register have no effect.
Bit Description
7:0 Revision Identification Number (RID): This is an 8-bit value that indicates the revision
identification number for the GMCH/MCH.
Intel 852GME = 02
Intel 852PM = 02
3.9.6 SUBC – Sub-Class Code Register (Device #0)
Address Offset: 0Ah
Default Value: 80h
Access: Read Only
Size: 8 bits
This register contains the Sub-Class Code for the GMCH/MCH Device #0. This code is 80h
indicating a peripheral device.
Bit Description
7:0 Sub-Class Code (SUBC): This is an 8-bit value that indicates the category of Bridge
into which GMCH/MCH falls. The code is 80h indicating other peripheral device.
3.9.7 BCC – Base Class Code Register (Device #0)
Address Offset: 0Bh
Default Value: 08h
Access: Read Only
Size: 8 bits
This register contains the Base Class Code of the GMCH/MCH Device #0 Function #3. This code
is 08h indicating a peripheral device.
Bit Description
7:0 Base Class Code (BASEC): This is an 8-bit value that indicates the Base Class code
for the GMCH/MCH. This code has the value 08h, indicating other peripheral device.