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4
Intel
82865G/82865GV GMCH Datasheet
3.4
I/O Mapped Registers....................................................................................52
3.4.1
CONFIG_ADDRESS—Configuration Address Register...................53
3.4.2
CONFIG_DATA—Configuration Data Register ................................54
DRAM Controller/Host-Hub Interface Device Registers (Device 0)...............55
3.5.1
VID—Vendor Identification Register (Device 0)................................57
3.5.2
DID—Device Identification Register (Device 0)................................57
3.5.3
PCICMD—PCI Command Register (Device 0).................................58
3.5.4
PCISTS—PCI Status Register (Device 0) ........................................59
3.5.5
RID—Revision Identification Register (Device 0) .............................60
3.5.6
SUBC—Sub-Class Code Register (Device 0) ..................................60
3.5.7
BCC—Base Class Code Register (Device 0)...................................60
3.5.8
MLT—Master Latency Timer Register (Device 0).............................61
3.5.9
HDR—Header Type Register (Device 0)..........................................61
3.5.10 APBASE—Aperture Base Configuration Register (Device 0)...........62
3.5.11 SVID—Subsystem Vendor Identification Register (Device 0)...........63
3.5.12 SID—Subsystem Identification Register (Device 0)..........................63
3.5.13 CAPPTR—Capabilities Pointer Register (Device 0).........................63
3.5.14 AGPM—AGP Miscellaneous Configuration Register
(Device 0) .........................................................................................64
3.5.15 GC—Graphics Control Register (Device 0)......................................65
3.5.16 CSABCONT—CSA Basic Control Register (Device 0).....................67
3.5.17 FPLLCONT— Front Side Bus PLL Clock Control Register
(Device 0) .........................................................................................68
3.5.18 PAM[0:6]—Programmable Attribute Map Registers
(Device 0) .........................................................................................69
3.5.19 FDHC—Fixed Memory(ISA) Hole Control Register
(Device 0) .........................................................................................71
3.5.20 SMRAM—System Management RAM Control Register
(Device 0) .........................................................................................72
3.5.21 ESMRAMC—Extended System Management RAM Control
(Device 0) .........................................................................................73
3.5.22 ACAPID—AGP Capability Identifier Register (Device 0)..................74
3.5.23 AGPSTAT—AGP Status Register (Device 0)...................................74
3.5.24 AGPCMD—AGP Command Register (Device 0)..............................76
3.5.25 AGPCTRL—AGP Control Register (Device 0) .................................77
3.5.26 APSIZE—Aperture Size Register (Device 0)....................................78
3.5.27 ATTBASE—Aperture Translation Table Register (Device 0)............78
3.5.28 AMTT—AGP MTT Control Register (Device 0)................................79
3.5.29 LPTT—AGP Low Priority Transaction Timer Register
(Device 0) .........................................................................................80
3.5.30 TOUD—Top of Used DRAM Register (Device 0).............................81
3.5.31 GMCHCFG—GMCH Configuration Register (Device 0)...................82
3.5.32 ERRSTS—Error Status Register (Device 0).....................................84
3.5.33 ERRCMD—Error Command Register (Device 0).............................85
3.5.34 SKPD—Scratchpad Data Register (Device 0)..................................86
3.5.35 CAPREG—Capability Identification Register (Device 0) ..................86
PCI-to-AGP Bridge Configuration Register (Device 1) ..................................87
3.6.1
VID1—Vendor Identification Register (Device 1)..............................88
3.6.2
DID1—Device Identification Register (Device 1)..............................88
3.6.3
PCICMD1—PCI Command Register (Device 1)...............................89
3.6.4
PCISTS1—PCI Status Register (Device 1) ......................................90
3.6.5
RID1—Revision Identification Register (Device 1) ...........................91
3.5
3.6