9.5
9.6
CLKREQ# - Mode of Operation ............................................................................ 93
Intel® Display Power Saving Technology
(Intel® DPST) 4.0............................................................................................. 93
FSB Dynamic Frequency Switching ...................................................................... 93
Render Standby States ...................................................................................... 93
Render Thermal Throttling.................................................................................. 94
9.7
9.8
9.9
10
11
Absolute Maximum Ratings ..................................................................................... 95
10.1 Power Characteristics......................................................................................... 97
Thermal Management............................................................................................ 102
11.1 Internal Thermal Sensor................................................................................... 102
11.1.1 Internal Thermal Sensor Operation......................................................... 102
11.1.1.1 Recommended Programming for Available Trip Points .................. 103
11.1.1.2 Thermal Sensor Accuracy (Taccuracy) ....................................... 103
11.1.2 Hysteresis Operation............................................................................. 104
11.2 Memory Thermal Throttling Options................................................................... 104
11.3 External Thermal Sensor Interface Overview....................................................... 104
11.4 THERMTRIP# Operation ................................................................................... 105
11.5 TSATN# Operation .......................................................................................... 105
12
DC Characteristics ................................................................................................. 106
12.1 I/O Buffer Supply Voltages ............................................................................... 110
12.2 General DC Characteristics ............................................................................... 111
12.3 CRT DAC DC Characteristics.............................................................................. 117
12.4 TV DAC DC Characteristics................................................................................ 118
13
14
Clocking ................................................................................................................ 119
13.1 Overview ....................................................................................................... 119
13.2 GMCH Reference Clocks ................................................................................... 119
13.3 GMCH Host/Memory/Graphics Core Clock Frequency Support ................................ 120
Intel Virtualization Technology (Intel VT) for Directed I/O (Intel VT-d)
Technology............................................................................................................ 121
14.1 Intel VT-d Terminology .................................................................................... 121
14.1.1 GCH/Intel VT-d Chipset Components....................................................... 122
14.1.2 DMA Address Remapping....................................................................... 122
14.1.3 Capabilities of GMCH DMAr hardware ...................................................... 123
14.1.4 Handling Interrupt Messages.................................................................. 124
14.2 Intel Trusted Execution Technology (Intel TXT) ................................................... 124
15
16
GMCH Strapping Configuration .............................................................................. 125
Ballout and Package Information........................................................................... 126
16.1 Mobile Intel 4 Series Express Chipset Ballout Diagrams ........................................ 126
16.2 GMCH Signal List by Ball .................................................................................. 130
16.3 Standard GMCH Package Information................................................................. 142
16.4 Intel GS45 Express Chipset Ballout Diagrams...................................................... 144
16.5 Intel GS45 Express Chipset Package Information................................................. 148
(G)MCH Register Description................................................................................. 163
(G)MCH Configuration Process and Registers ........................................................ 165
Host Bridge Device 0 Configuration Registers (D0:F0)........................................... 177
Device 0 Memory Mapped I/O Register.................................................................. 217
PCI Express Graphics Device 1 Configuration Registers (D1:F0)............................ 313
Internal Graphics Device 2 Configuration Register (D2:F0-F1) .............................. 365
Intel® Management Engine Subsystem PCI Device 3............................................. 409
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Datasheet
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