Register Description
D15343-003 49
4.8 Intel 854 GMCH Host-Hub Interface Bridge Device Registers
(Device #0, Function #0)
Table 5 summarizes the configuration space for Device #0, Function#0.
Table 19. GMCH Configuration Space - Device #0, Function#0
Register Name
Register
Symbol
Register
Start
Register
End
Default Value Access
Vendor Identification VID 00 01 8086h RO
Device Identification DID 02 03 358Ch RO
PCI Command PCICMD 04 05 0006h RO,R/W
PCI Status PCISTS 06 07 0090h RO,R/WC
Revision Identification RID 08 08 02h RO
Sub-Class Code SUBC 0A 0A 00h RO
Base Class Code BCC 0B 0B 06h RO
Header Type HDR 0E 0E 80h RO
Subsystem Vendor
Identification
SVID 2C 2D 0000h R/WO
Subsystem Identification SID 2E 2F 0000h R/WO
Capabilities Pointer CAPPTR 34 34 40h RO
Capability Identification CAPID 40 44 84_A105_0009h RO
GMCH Misc. Control GMC 50 51 0000h R/W
GMCH Graphics Control GGC 52 53 0030h R/W
Device and Function Control DAFC 54 55 0000h R/W
Fixed Dram Hole Control FDHC 58 58 00h R/W
Programmable Attribute Map PAM (6:0) 59 5F 00h Each R/W
System Management RAM
Control
SMRAM 60 60 02h R/W/L
Extended System
Management RAM Control
ESMRAMC 61 61 38h R/W/L
Error Status ERRSTS 62 63 0000h R/WC
Error Command ERRCMD 64 65 0000h R/W
SMI Command SMICMD 66 66 00h R/W
SCI Command SCICMD 67 67 00h R/W
Secondary Host Interface
Control Register
SHIC 74 77 00006010h RO, R/W