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865G Datasheet(数据表) 6 Page - Intel Corporation |
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865G Datasheet(HTML) 6 Page - Intel Corporation |
6 page ![]() Intel® 82865G/82865GV GMCH Datasheet 7 4.4 AGP Memory Address Ranges....................................................................146 5 Functional Description ...................................................................................147 5.1 Processor Front Side Bus (FSB)..................................................................147 5.1.1 FSB Dynamic Bus Inversion ...........................................................147 5.1.2 FSB Interrupt Overview...................................................................148 5.1.2.1 Upstream Interrupt Messages .........................................148 5.2 System Memory Controller ..........................................................................149 5.2.1 DRAM Technologies and Organization...........................................150 5.2.2 Memory Operating Modes ..............................................................150 5.2.2.1 Dynamic Addressing Mode..............................................151 5.2.3 Single-Channel (SC) Mode .............................................................151 5.2.3.1 Linear Mode.....................................................................151 5.2.3.2 Tiled Mode.......................................................................151 5.2.4 Memory Address Translation and Decoding...................................151 5.2.5 Memory Organization and Configuration ........................................156 5.2.6 Configuration Mechanism for DIMMS .............................................157 5.2.6.1 Memory Detection and Initialization.................................157 5.2.6.2 SMBus Configuration and Access of the Serial Presence Detect Ports.....................................................................157 5.2.6.3 Memory Register Programming.......................................157 5.2.7 Memory Thermal Management.......................................................158 5.2.7.1 Determining When to Thermal Manage...........................158 5.3 Accelerated Graphics Port (AGP) ................................................................158 5.3.1 GMCH AGP Support.......................................................................159 5.3.2 Selecting between AGP 3.0 and AGP 2.0 ......................................159 5.3.3 AGP 3.0 Downshift (4X Data Rate) Mode.......................................159 5.3.3.1 Mechanism for Detecting AGP 2.0, AGP 3.0, or Intel® DVO.......................................................................160 5.3.4 AGP Target Operations ..................................................................162 5.3.5 AGP Transaction Ordering..............................................................162 5.3.6 Support for PCI-66 Devices ............................................................163 5.3.7 8X AGP Protocol.............................................................................163 5.3.7.1 Fast Writes ......................................................................163 5.3.7.2 PCI Semantic Transactions on AGP ...............................163 5.4 Integrated Graphics Controller.....................................................................164 5.4.1 3D Engine .......................................................................................165 5.4.1.1 Setup Engine ...................................................................165 5.4.1.2 Scan Converter................................................................166 5.4.1.3 2D Functionality...............................................................166 5.4.1.4 Texture Engine ................................................................166 5.4.1.5 Raster Engine..................................................................168 5.4.2 2D Engine .......................................................................................172 5.4.3 Video Engine...................................................................................173 5.4.4 Planes .............................................................................................173 5.4.4.1 Cursor Plane....................................................................173 5.4.4.2 Overlay Plane ..................................................................174 5.4.5 Pipes ...............................................................................................175 5.5 Display Interfaces ........................................................................................175 5.5.1 Analog Display Port Characteristics................................................176 5.5.2 Digital Display Interface ..................................................................177 5.5.2.1 Digital Display Channels – Intel® DVOB and Intel® DVOC ... 177 |