5.1.9 SVIDâSubsystem Vendor Identification......................................92
5.1.10 SIDâSubsystem Identification ..................................................92
5.1.11 CAPPTRâCapabilities Pointer ....................................................93
5.1.12 PXPEPBARâPCI Express* Egress Port Base Address .....................93
5.1.13 MCHBARâ(G)MCH Memory Mapped Register Range Base ..............94
5.1.14 GGCâGMCH Graphics Control Register (IntelÂź 82Q35, 82Q33,
82G33 GMCH Only) .................................................................95
5.1.15 DEVENâDevice Enable.............................................................97
5.1.16 PCIEXBARâPCI Express* Register Range Base Address ................99
5.1.17 DMIBARâRoot Complex Register Range Base Address ................ 101
5.1.18 PAM0âProgrammable Attribute Map 0...................................... 102
5.1.19 PAM1âProgrammable Attribute Map 1...................................... 104
5.1.20 PAM2âProgrammable Attribute Map 2...................................... 105
5.1.21 PAM3âProgrammable Attribute Map 3...................................... 106
5.1.22 PAM4âProgrammable Attribute Map 4...................................... 107
5.1.23 PAM5âProgrammable Attribute Map 5...................................... 108
5.1.24 PAM6âProgrammable Attribute Map 6...................................... 109
5.1.25 LACâLegacy Access Control.................................................... 110
5.1.26 REMAPBASEâRemap Base Address Register.............................. 111
5.1.27 REMAPLIMITâRemap Limit Address Register ............................. 111
5.1.28 SMRAMâSystem Management RAM Control .............................. 112
5.1.29 ESMRAMCâExtended System Management RAM Control ............. 113
5.1.30 TOMâTop of Memory............................................................. 114
5.1.31 TOUUDâTop of Upper Usable Dram ......................................... 115
5.1.32 GBSMâGraphics Base of Stolen Memory................................... 116
5.1.33 BGSMâBase of GTT stolen Memory.......................................... 117
5.1.34 TSEGMBâTSEG Memory Base ................................................. 117
5.1.35 TOLUDâTop of Low Usable DRAM ............................................ 118
5.1.36 ERRSTSâError Status ............................................................ 119
5.1.37 ERRCMDâError Command ...................................................... 121
5.1.38 SMICMDâSMI Command........................................................ 122
5.1.39 SKPDâScratchpad Data ......................................................... 122
5.1.40 CAPID0âCapability Identifier .................................................. 123
5.2 MCHBAR ........................................................................................... 127
5.2.1 CHDECMISCâChannel Decode Miscellaneous............................. 130
5.2.2 C0DRB0âChannel 0 DRAM Rank Boundary Address 0 ................. 131
5.2.3 C0DRB1âChannel 0 DRAM Rank Boundary Address 1 ................. 132
5.2.4 C0DRB2âChannel 0 DRAM Rank Boundary Address 2 ................. 133
5.2.5 C0DRB3âChannel 0 DRAM Rank Boundary Address 3 ................. 133
5.2.6 C0DRA01âChannel 0 DRAM Rank 0,1 Attribute ......................... 134
5.2.7 C0DRA23âChannel 0 DRAM Rank 2,3 Attribute ......................... 135
5.2.8 C0CYCTRKPCHGâChannel 0 CYCTRK PCHG............................... 135
5.2.9 C0CYCTRKACTâChannel 0 CYCTRK ACT ................................... 136
5.2.10 C0CYCTRKWRâChannel 0 CYCTRK WR ..................................... 137
5.2.11 C0CYCTRKRDâChannel 0 CYCTRK READ................................... 138
5.2.12 C0CYCTRKREFRâChannel 0 CYCTRK REFR ................................ 138
5.2.13 C0CKECTRLâChannel 0 CKE Control ........................................ 139
5.2.14 C0REFRCTRLâChannel 0 DRAM Refresh Control......................... 140
5.2.15 C0ODTCTRLâChannel 0 ODT Control ....................................... 142
5.2.16 C1DRB0âChannel 1 DRAM Rank Boundary Address 0 ................. 143
5.2.17 C1DRB1âChannel 1 DRAM Rank Boundary Address 1 ................. 143
5.2.18 C1DRB2âChannel 1 DRAM Rank Boundary Address 2 ................. 144
5.2.19 C1DRB3âChannel 1 DRAM Rank Boundary Address 3 ................. 144
5.2.20 C1DRA01âChannel 1 DRAM Rank 0,1 Attributes ........................ 145
5.2.21 C1DRA23âChannel 1 DRAM Rank 2,3 Attributes ........................ 145
Datasheet
5