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6 D15343-003
Intel
®
82854 Graphics Memory Controller Hub (GMCH)
6.4.1 3D/2D Instruction Processing .............................................................................. 126
6.4.2 3D Engine ............................................................................................................ 127
6.4.3 Raster Engine ...................................................................................................... 130
6.4.4 2D Engine ............................................................................................................ 133
6.4.5 Planes and Engines............................................................................................. 134
6.4.6 Hardware Cursor Plane (Native Graphic Mode only) .......................................... 134
6.4.7 Overlay Plane ...................................................................................................... 135
6.4.8 Video Functionality .............................................................................................. 137
6.5 Internal Graphic Display Interface .................................................................................... 138
6.5.1 Pipe A Timing Generator Unit.............................................................................. 138
6.5.2 Blend Function..................................................................................................... 141
6.5.3 Interlaced Video Field display.............................................................................. 141
6.5.4 Interlace support for Video Overlay Window ....................................................... 143
6.5.5 Analog Display Port Characteristics .................................................................... 145
7.0 Power and Thermal Management ............................................................................................... 147
7.1 General Description of Supported CPU States................................................................. 148
7.2 General Description of ACPI States ................................................................................. 148
7.3 Internal Thermal Sensor ................................................................................................... 149
7.3.1 Overview.............................................................................................................. 149
7.3.2 Hysteresis Operation ........................................................................................... 149
7.4 External Thermal Sensor Input ......................................................................................... 150
7.4.1 Usage .................................................................................................................. 150
8.0 Intel
®
82854 GMCH Strap Pins ................................................................................................... 151
8.1 Strapping Configuration.................................................................................................... 151
9.0 Ballout and Package Information.................................................................................................153
9.1 VCC/VSS Voltage Groups ................................................................................................ 154
9.2 Package Mechanical Information...................................................................................... 164