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845GL の電気的特性と機能

845GLのメーカーはIntel Corporationです、この部品の機能は「Intel 82845G/82845GL/82845GV Graphics and Memory Controller Hub」です。


製品の詳細 ( Datasheet PDF )

部品番号 845GL
部品説明 Intel 82845G/82845GL/82845GV Graphics and Memory Controller Hub
メーカ Intel Corporation
ロゴ Intel Corporation ロゴ 




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845GL Datasheet, 845GL PDF,ピン配置, 機能
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Intel® 845G/845GL/845GV Chipset
Datasheet
Intel® 82845G/82845GL/82845GV Graphics and Memory Controller
Hub (GMCH)
October 2002
Document Number: 290746-002
Datasheet pdf - http://www.DataSheet4U.net/

1 Page





845GL pdf, ピン配列
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Contents
1 Introduction...........................................................................................................13
1.1 Terminology ...................................................................................................13
1.2 Related Documents .......................................................................................14
1.3 Intel® 845G Chipset System Overview ..........................................................15
1.4 Intel® 82845G GMCH Overview....................................................................17
1.4.1 Host Interface....................................................................................17
1.4.2 System Memory Interface .................................................................17
1.4.3 Hub Interface ....................................................................................17
1.4.4 Multiplexed AGP and Intel® DVO Port Interface ...............................18
1.4.5 Graphics Overview............................................................................18
1.4.6 Display Interfaces .............................................................................19
2 Signal Description ..............................................................................................21
2.1 Host Interface Signals....................................................................................23
2.2 Memory Interface ...........................................................................................25
2.2.1 DDR SDRAM Interface .....................................................................25
2.2.2 SDR SDRAM Interface .....................................................................26
2.3 Hub Interface .................................................................................................28
2.4 AGP Interface Signals....................................................................................29
2.4.1 AGP Addressing Signals...................................................................29
2.4.2 AGP Flow Control Signals ................................................................29
2.4.3 AGP Status Signals ..........................................................................30
2.4.4 AGP Strobes .....................................................................................30
2.4.5 PCI Signals–AGP Semantics............................................................31
2.4.6 PCI Pins during PCI Transactions on AGP Interface ........................32
2.5 Multiplexed Intel® DVO Device Signal Interfaces ..........................................32
2.5.1 Intel® DVO Signal Name to AGP Signal Name Pin Mapping............34
2.6 Analog Display ...............................................................................................35
2.7 Clocks, Reset, and Miscellaneous Signals ....................................................36
2.8 RCOMP, VREF, VSWING Signals.................................................................36
2.9 Power and Ground Signals ............................................................................37
2.10 Functional Straps ...........................................................................................38
2.11 GMCH Sequencing Requirements.................................................................38
2.12 Reset States ..................................................................................................39
2.12.1 Full and Warm Reset States .............................................................39
3 Register Description..........................................................................................41
3.1 Register Terminology.....................................................................................41
3.2 Platform Configuration ...................................................................................42
3.3 Routing Configuration Accesses....................................................................43
3.3.1 Standard PCI Bus Configuration Mechanism ...................................44
3.3.2 PCI Bus #0 Configuration Mechanism ..............................................44
3.3.3 Primary PCI and Downstream Configuration Mechanism.................44
3.3.4 AGP/PCI_B Bus Configuration Mechanism ......................................44
3.4 I/O Mapped Registers ....................................................................................46
3.4.1 CONFIG_ADDRESS—Configuration Address Register ...................46
3.4.2 CONFIG_DATA—Configuration Data Register ................................47
3.5 Intel® GMCH Internal Device Registers .........................................................48
Intel® 82845G/82845GL/82845GV GMCH Datasheet
3
Datasheet pdf - http://www.DataSheet4U.net/


3Pages


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4.1.1 PSB Dynamic Bus Inversion........................................................... 105
4.1.2 System Bus Interrupt Delivery ........................................................ 106
4.1.3 Upstream Interrupt Messages......................................................... 106
4.2 System Memory Controller .......................................................................... 107
4.2.1 DDR SDRAM Interface Overview ................................................... 107
4.2.2 SDR SDRAM Interface Overview ................................................... 107
4.2.3 Memory Organization and Configuration ........................................ 108
4.2.3.1 Configuration Mechanism for DIMMs .............................. 108
4.2.4 Memory Address Translation and Decoding................................... 109
4.2.5 DRAM Performance Description..................................................... 110
4.3 AGP Interface .............................................................................................. 111
4.3.1 Overview ......................................................................................... 111
4.3.1.1 Lock Behavior.................................................................. 111
4.3.1.2 AGP Target Operations................................................... 112
4.3.1.3 AGP Transaction Ordering .............................................. 113
4.3.1.4 AGP Electrical Characteristics ........................................ 113
4.3.1.5 Support for PCI-66 Devices............................................. 113
4.3.1.6 4X AGP Protocol ............................................................. 114
4.3.1.7 Fast Writes ...................................................................... 114
4.3.1.8 AGP 1.5 V Connector...................................................... 114
4.3.2 PCI Semantic Transactions on AGP............................................... 115
4.3.2.1 GMCH Initiator and Target PCI Operations..................... 115
4.3.2.2 GMCH Retry/Disconnect Conditions ............................... 117
4.4 Integrated Graphics Device (IGD) ............................................................... 119
4.4.1 3D Engine ....................................................................................... 120
4.4.1.1 Setup Engine................................................................... 120
4.4.1.2 Scan Converter ............................................................... 121
4.4.1.3 2D Functionality............................................................... 121
4.4.1.4 Texture Engine ................................................................ 121
4.4.1.5 Raster Engine.................................................................. 124
4.4.1.6 2D Engine........................................................................ 126
4.4.1.7 GMCH VGA Registers..................................................... 127
4.4.1.8 Logical 128-Bit Fixed BLT and 256-Bit Fill Engine .......... 127
4.4.2 Video Engine .................................................................................. 128
4.4.2.1 Hardware Motion Compensation..................................... 128
4.4.2.2 Planes ............................................................................. 128
4.4.2.3 Cursor Plane ................................................................... 128
4.4.2.4 Overlay Plane.................................................................. 129
4.4.3 Pipes ............................................................................................... 130
4.4.3.1 Clock Generator Units (DPLL)......................................... 130
4.4.4 Ports ............................................................................................... 130
4.5 Display Interfaces ........................................................................................ 131
4.5.1 Analog Display Port Characteristics................................................ 132
4.5.2 Digital Display Interface .................................................................. 133
4.5.2.1 Digital Display Channels – DVOB and DVOC................. 133
4.5.2.2 Synchronous Display....................................................... 135
4.6 Power and Thermal Management ............................................................... 136
4.6.1 Power Management Support Overview .......................................... 136
4.6.2 Processor Power State Control....................................................... 136
4.6.3 Sleep State Control......................................................................... 136
4.6.4 Graphics Adapter State Control ...................................................... 136
4.6.5 Monitor State Control ...................................................................... 137
4.7 Clocking ....................................................................................................... 137
6 Intel® 82845G/82845GL/82845GV GMCH Datasheet
Datasheet pdf - http://www.DataSheet4U.net/

6 Page



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部品番号部品説明メーカ
845G

Intel 82845G/82845GL/82845GV Graphics and Memory Controller Hub

Intel Corporation
Intel Corporation
845GL

Intel 82845G/82845GL/82845GV Graphics and Memory Controller Hub

Intel Corporation
Intel Corporation
845GV

Intel 82845G/82845GL/82845GV Graphics and Memory Controller Hub

Intel Corporation
Intel Corporation


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