RG82855GMESL72L Datasheet, PDF (8/213 Pages) Intel Corporation – Intel® 855GM/855GME Chipset Graphics and Memory Controller Hub (GMCH)

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6.5.3
6.5.4
6.5.5
6.5.6
6.5.2.7.1 Panel Power Sequence States.......................... 156
6.5.2.8 Back Light Inverter Control................................................ 157
6.5.2.9 Digital Video Output Port................................................... 157
6.5.2.10 Intel 855GME GMCH AGP Interface Overview................. 158
6.5.2.11 AGP Target Operations..................................................... 158
AGP Transaction Ordering ................................................................. 159
AGP Signal Levels .............................................................................. 159
4X AGP Protocol................................................................................. 159
6.5.5.1 Fast Writes ........................................................................ 160
6.5.5.2 AGP FRAME# Transactions on AGP ................................ 160
Concurrent and Simultaneous Display ............................................... 163
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Power and Thermal Management................................................................................... 165
7.1 General Description of Supported CPU States .................................................. 165
7.2 7.2. General Description of ACPI States............................................................ 166
7.3 Enhanced Intel SpeedStep^® Technology Overview ........................................... 167
7.4 Internal Thermal Sensor..................................................................................... 167
7.4.1 Overview ............................................................................................. 167
7.4.2 Hysteresis Operation .......................................................................... 167
7.5 External Thermal Sensor Input........................................................................... 167
7.5.1 Usage.................................................................................................. 168
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Electrical Characteristics................................................................................................. 169
8.1 Absolute Maximum Ratings................................................................................ 169
8.2 Thermal Characteristics ..................................................................................... 170
8.3 Power Characteristics ........................................................................................ 171
8.4 Signal Groups..................................................................................................... 172
8.5 DC Characteristics ............................................................................................. 176
8.5.1 General DC Characteristics ................................................................ 176
8.5.2 DAC DC Characteristics ..................................................................... 183
8.5.3 DAC Reference and Output Specifications ........................................ 184
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Video Filter Capacitors and Ferrite Bead Arranged in a PI Configuration (One PI Filter
Testability) ....................................................................................................................... 185
9.1 XOR Test Mode Entry ........................................................................................ 186
9.2 XOR Chain Differential Pairs.............................................................................. 187
9.3 XOR Chain Exclusion List .................................................................................. 187
9.4 XOR Chain Connectivity/Ordering ..................................................................... 188
9.4.1 VCC/VSS Voltage Groups .................................................................. 200
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Intel^® 855GM/GME GMCH Strap Pins............................................................................ 201
10.1 Strapping Configuration...................................................................................... 201
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Ballout and Package Information .................................................................................... 203
11.1 Package Mechanical Information ....................................................................... 211
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Datasheet