82815 GMCH
R
3.4.
Host-Hub Interface Bridge/DRAM Controller Device Registers (Device 0)................... 42
3.4.1.
3.4.2.
3.4.3.
3.4.4.
3.4.5.
3.4.6.
3.4.7.
3.4.8.
3.4.9.
3.4.10.
VID—Vendor Identification Register (Device 0) .......................................... 44
DID—Device Identification Register (Device 0)........................................... 44
PCICMD—PCI Command Register (Device 0) ........................................... 45
PCISTS—PCI Status Register (Device 0)................................................... 46
RID—Revision Identification Register (Device 0)........................................ 47
SUBC—Sub-Class Code Register (Device 0)............................................. 47
BCC—Base Class Code Register (Device 0).............................................. 47
MLT—Master Latency Timer Register (Device 0)....................................... 48
HDR—Header Type Register (Device 0)..................................................... 48
APBASE—Aperture Base Configuration Register (Device 0: AGP
Mode Only) .................................................................................................. 48
SVID—Subsystem Vendor Identification Register (Device 0)..................... 50
SID—Subsystem Identification Register (Device 0).................................... 50
CAPPTR—Capabilities Pointer (Device 0).................................................. 50
GMCHCFG—GMCH Configuration Register (Device 0)............................. 51
APCONT—Aperture Control (Device 0)...................................................... 53
DRP—DRAM Row Population Register (Device 0)..................................... 54
DRAMT—DRAM Timing Register (Device 0).............................................. 55
DRP2—DRAM Row Population Register 2 (Device 0)................................ 56
FDHC—Fixed DRAM Hole Control Register (Device 0).............................. 57
PAM—Programmable Attributes Map Registers (Device 0)........................ 57
SMRAM—System Management RAM Control Register (Device 0)........... 62
MISCC—Miscellaneous Control Register (Device 0).................................. 64
CAPID—Capability Identification (Device 0: AGP Mode Only).................... 66
BUFF_SC—System Memory Buffer Strength Control Register
3.4.11.
3.4.12.
3.4.13.
3.4.14.
3.4.15.
3.4.16.
3.4.17.
3.4.18.
3.4.19.
3.4.20.
3.4.21.
3.4.22.
3.4.23.
3.4.24.
(Device 0) .................................................................................................... 67
BUFF_SC2—System Memory Buffer Strength Control Register 2
(Device 0) .................................................................................................... 70
SM_RCOMP—System Memory R Compensation Control Register
3.4.25.
3.4.26.
(Device 0) .................................................................................................... 71
SM—System Memory Control Register....................................................... 72
ACAPID—AGP Capability Identifier Register (Device 0: AGP
3.4.27.
3.4.28.
Mode Only) .................................................................................................. 73
AGPSTAT—AGP Status Register (Device 0: AGP Mode Only) ................. 74
AGPCMD—AGP Command Register (Device 0: AGP Mode Only)............ 75
AGPCTRL—AGP Control Register (Device 0: AGP Mode Only)................ 76
APSIZE—Aperture Size (Device 0: AGP Mode Only) ................................. 77
ATTBASE—Aperture Translation Table Base Register (Device 0: AGP
3.4.29.
3.4.30.
3.4.31.
3.4.32.
3.4.33.
Mode Only) .................................................................................................................... 78
3.4.34.
3.4.35.
AMTT—AGP Multi-Transaction Timer (Device 0: AGP Mode Only).......... 79
LPTT—AGP Low Priority Transaction Timer Register (Device 0: AGP
Mode Only) .................................................................................................. 80
GMCHCFG—GMCH Configuration Register (Device 0: AGP
3.4.36.
Mode Only) .................................................................................................. 81
ERRCMD—Error Command Register (Device 0: AGP Mode Only)........... 82
3.4.37.
3.5.
AGP/PCI Bridge Registers (Device 1: Visible in AGP Mode Only)............................... 84
3.5.1.
3.5.2.
3.5.3.
3.5.4.
3.5.5.
3.5.6.
3.5.7.
VID1—Vendor Identification Register (Device 1) ........................................ 85
DID1—Device Identification Register (Device 1)......................................... 85
PCICMD1—PCI-PCI Command Register (Device 1).................................. 85
PCISTS1—PCI-PCI Status Register (Device 1).......................................... 87
RID1—Revision Identification Register (Device 1)...................................... 88
SUBC1—Sub-Class Code Register (Device 1)........................................... 88
BCC1—Base Class Code Register (Device 1)............................................ 88
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