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82845GE の電気的特性と機能

82845GEのメーカーはIntelです、この部品の機能は「(82845GE / 82845PE) Memory Controller Hub」です。


製品の詳細 ( Datasheet PDF )

部品番号 82845GE
部品説明 (82845GE / 82845PE) Memory Controller Hub
メーカ Intel
ロゴ Intel ロゴ 




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82845GE Datasheet, 82845GE PDF,ピン配置, 機能
Intel® 845GE/845PE Chipset
Datasheet
Intel® 82845GE Graphics and Memory Controller Hub (GMCH) and
Intel® 82845PE Memory Controller Hub (MCH)
October 2002
Document Number: 251924-001

1 Page





82845GE pdf, ピン配列
Contents
1 Introduction...........................................................................................................13
1.1 Terminology ...................................................................................................13
1.2 Related Documents .......................................................................................14
1.3 Intel® 845GE / 845PE Chipset System Overview ..........................................15
1.4 Intel® 82845GE GMCH / 82845PE MCH 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 (Intel® 82845GE only)........................................18
1.4.6 Display Interfaces (Intel® 82845GE only) .........................................19
2 Signal Description ..............................................................................................21
2.1 Host Interface Signals....................................................................................23
2.2 DDR SDRAM Interface ..................................................................................25
2.3 Hub Interface .................................................................................................26
2.4 AGP Interface Signals....................................................................................26
2.4.1 AGP Addressing Signals...................................................................26
2.4.2 AGP Flow Control Signals ................................................................27
2.4.3 AGP Status Signals ..........................................................................27
2.4.4 AGP Strobes .....................................................................................28
2.4.5 PCI Signals–AGP Semantics............................................................29
2.4.6 PCI Pins during PCI Transactions on AGP Interface ........................30
2.5 Multiplexed DVO Device Signal Interfaces (Intel® 82845GE only) ................30
2.5.1 Intel® DVO Signal Name to AGP Signal Name Pin
Mapping (Intel® 82845GE only) ........................................................32
2.6 Analog Display (Intel® 82845GE only) ...........................................................33
2.7 Clocks, Reset, and Miscellaneous Signals ....................................................34
2.8 RCOMP, VREF, VSWING Signals.................................................................34
2.9 Power and Ground Signals ............................................................................35
2.10 Functional Straps ...........................................................................................36
2.11 Intel® (G)MCH Sequencing Requirements ....................................................36
2.12 Reset States ..................................................................................................37
2.12.1 Full and Warm Reset States .............................................................37
3 Register Description..........................................................................................39
3.1 Register Terminology.....................................................................................39
3.2 Platform Configuration ...................................................................................40
3.3 Routing Configuration Accesses....................................................................41
3.3.1 Standard PCI Bus Configuration Mechanism ...................................42
3.3.2 PCI Bus #0 Configuration Mechanism ..............................................42
3.3.3 Primary PCI and Downstream Configuration Mechanism.................42
3.3.4 AGP/PCI_B Bus Configuration Mechanism ......................................42
3.4 I/O Mapped Registers ....................................................................................44
3.4.1 CONFIG_ADDRESS—Configuration Address Register ...................44
3.4.2 CONFIG_DATA—Configuration Data Register ................................45
3.5 Intel® (G)MCH Internal Device Registers ......................................................46
3.5.1 DRAM Controller/Host-Hub Interface Device Registers (Device 0) ..46
Intel® 82845GE/82845PE Datasheet
3


3Pages


82845GE 電子部品, 半導体
4 System Address ................................................................................................ 101
4.1 System Memory Address Ranges ............................................................... 101
4.1.1 Compatibility Area........................................................................... 103
4.1.2 Extended Memory Area .................................................................. 105
4.1.2.1 15 MB–16 MB Window.................................................... 105
4.1.2.2 Pre-Allocated Memory..................................................... 105
4.1.3 AGP Memory Address Ranges....................................................... 108
5 Functional Description ................................................................................... 109
5.1 Processor System Bus ................................................................................ 109
5.1.1 PSB Dynamic Bus Inversion........................................................... 109
5.1.2 System Bus Interrupt Delivery ........................................................ 110
5.1.3 Upstream Interrupt Messages......................................................... 110
5.2 System Memory Controller .......................................................................... 111
5.2.1 DDR SDRAM Interface Overview ................................................... 111
5.2.2 Memory Organization and Configuration ........................................ 111
5.2.2.1 Configuration Mechanism for DIMMs .............................. 112
5.2.3 Memory Address Translation and Decoding................................... 113
5.2.4 DRAM Performance Description..................................................... 113
5.3 AGP Interface .............................................................................................. 114
5.3.1 Overview ......................................................................................... 114
5.3.1.1 Lock Behavior.................................................................. 114
5.3.1.2 AGP Target Operations................................................... 115
5.3.1.3 AGP Transaction Ordering .............................................. 116
5.3.1.4 AGP Electrical Characteristics ........................................ 116
5.3.1.5 Support for PCI-66 Devices............................................. 116
5.3.1.6 4X AGP Protocol ............................................................. 117
5.3.1.7 Fast Writes ...................................................................... 117
5.3.1.8 AGP 1.5 V Connector...................................................... 117
5.3.2 PCI Semantic Transactions on AGP............................................... 118
5.3.2.1 Intel® (G)MCH Initiator and Target PCI Operations ........ 118
5.3.2.2 Intel® (G)MCH Retry/Disconnect Conditions................... 120
5.4 Integrated Graphics Device (IGD) (Intel® 82845GE only) ........................... 122
5.4.1 3D Engine ....................................................................................... 123
5.4.1.1 Setup Engine................................................................... 123
5.4.1.2 Scan Converter ............................................................... 124
5.4.1.3 2D Functionality............................................................... 124
5.4.1.4 Texture Engine ................................................................ 124
5.4.1.5 Raster Engine.................................................................. 127
5.4.1.6 2D Engine........................................................................ 129
5.4.1.7 Intel® GMCH VGA Registers........................................... 130
5.4.1.8 Logical 128-Bit Fixed BLT and 256-Bit Fill Engine .......... 130
5.4.2 Video Engine .................................................................................. 131
5.4.2.1 Hardware Motion Compensation..................................... 131
5.4.2.2 Planes ............................................................................. 131
5.4.2.3 Cursor Plane ................................................................... 131
5.4.2.4 Overlay Plane.................................................................. 132
5.4.3 Pipes ............................................................................................... 133
5.4.3.1 Clock Generator Units (DPLL)......................................... 133
5.4.4 Ports ............................................................................................... 133
5.5 Display Interfaces (Intel® 82845GE only) .................................................... 134
5.5.1 Analog Display Port Characteristics................................................ 135
5.5.2 Digital Display Interface .................................................................. 136
6 Intel® 82845GE/82845PE Datasheet

6 Page



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共有リンク

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部品番号部品説明メーカ
82845GE

(82845GE / 82845PE) Memory Controller Hub

Intel
Intel
82845Gx

Graphic and Memory Controller Hub

Intel
Intel


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