Intel B940 Datasheet download pdf (Page 11)

Datasheet, Volume 2 11

Figures

2-1 System Address Range .....................................................................................18

2-2 DOS Legacy Address Range................................................................................19

2-3 Main Memory Address Range ..............................................................................21

2-4 PCI Memory Address Range................................................................................25

2-5 Case 1 — Less than 4 GB of Physical Memory (no remap).......................................29

2-6 Case 2 — Greater than 4 GB of Physical Memory ...................................................30

2-7 4 GB or Less of Physical Memory.........................................................................31

2-8 Greater than 4 GB, Remap Enabled......................................................................32

2-9 Memory Map to PCI Express Device Configuration Space ........................................39

2-10 Processor Configuration Cycle Flow Chart .............................................................41

Tables

2-1 Register Terminology.........................................................................................15

2-2 SMM Regions....................................................................................................35

2-3 Device Number Assignment for Internal Processor Devices......................................38

2-4 PCI Express* Device 0 Register Address Map ........................................................45

2-5 MCHBAR Register Address Map ...........................................................................66

2-6 DRAM Rank Attribute Register Programming .........................................................73

2-7 PCI Express* Device 1 Register Address Map ...................................................... 115

2-8 Device 1 Extended Configuration Register Address Map........................................ 156

2-9 DMI Register Address Map................................................................................ 161

2-10 PCI (Device 2, Function 0) Register Address Map................................................. 174

2-11 MMI and PEG VC0/VCp Remap Register Address Map ........................................... 185

2-12 DMI VC1 Remap Register Address Map............................................................... 221

2-13 GFXVTBAR Register Address Map....................................................................... 255

2-14 PCI Device 6 Register Address Map.................................................................... 288

2-15 Device 6 Extended Configuration Register Address Map ........................................ 328

2-16 Intel

TXT Register Address Map....................................................................... 332

3-1 Register Terminology....................................................................................... 335

3-2 Functions Specifically Handled by the Processor................................................... 337

3-3 Device 0, Function 0 — Generic Non-core Registers ............................................. 338

3-4 Device 0, Function 1 — System Address Decoder Registers................................... 339

3-5 Device 2, Function 0 — Intel

QPI Link 0 Registers.............................................. 340

3-6 Device 2, Function 1 — Intel

QPI Physical 0 Registers ........................................ 341

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 359 360

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Intel B940 Datasheet Page 11