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參數(shù)資料
| 型號(hào)： | 82815EM |
| 英文描述： | Controller Miscellaneous - Datasheet Reference |
| 中文描述： | 控制器雜項(xiàng)-數(shù)據(jù)表參考 |
| 文件頁(yè)數(shù)： | 140/163頁(yè) |
| 文件大?。?/td> | 1049K |
| 代理商： | 82815EM |
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Intel
82815EM GMCH
R
140
Datasheet
4.12.8.
Hardware Motion Compensation
The Motion Compensation (MC) process consists of reconstructing a new picture by predicting (either
forward, backward or bidirectionally) the resulting pixel colors from one or more reference pictures. The
GMCH2-M intercepts the DVD pipeline at Motion Compensation and implements Motion Compensation
and subsequent steps in hardware. Performing Motion Compensation in hardware reduces the processor
demand of software-based MPEG-2 decoding, and thus improves system performance.
The GMCH2-M’s implementation of Hardware Motion Compensation supports a motion smoothing
algorithm. When the system processor is not able to process the MPEG decoding stream in a timely
manner (as can happen in software DVD implementations), the Intel
815EM chipset GMCH2-M
supports downsampled MPEG decoding. Downsampling allows for reduced spatial resolution in the
MPEG picture while maintaining a full frame rate, and thus reduces processor load while maintaining the
best video quality possible given the processor constraints.
4.12.9.
Hardware Cursor and Popup Support
The internal graphics device of the GMCH2-M allows an unlimited number of cursor patterns to be
stored in the display cache or system memory. Two sets of registers, contain the x and y position of the
cursor relative to the upper left corner of the display. The following four cursor modes are provided:
32x32 2 bpp AND/XOR 2-plane mode
64x64 2 bpp 3-color and transparency mode
64x64 2 bpp AND/XOR 2-plane mode
64x64 2 bpp 4-color mode
Intel
815EM chipset implements a popup in addition to the cursor. The Intel
815EM chipset popup
and cursor have the same functionality as the Intel
815E chipset cursor. The Intel
815EM chipset
popup is implemented by replicating the cursor logic, it is allowable for both the cursor and the popup to
be active on the screen at the same time.
4.12.10. Overlay Engine
The overlay engine provides a method of merging either video capture data (from an external PCI Video
Capture Adapter) or data delivered by the processor, with the graphics data on the screen. Supported data
formats include YUV 4:2:2, YUV 4:2:0, YUV 4:1:0, YUV 4:1:1, RGB15, and RGB16. The source data
can be mirrored horizontally or vertically or both. Overlay data comes from a buffer located in system
memory. Additionally, the overlay engine can be quadruple buffered in order to support flipping between
different overlay images. Data can either be transferred into the overlay buffer from the host or from an
external PCI adapter, such as DVD hardware or video capture hardware. Buffer swaps can be done by
the host and internally synchronized with the display VBLANK.
The internal graphics device of the GMCH2-M can accept line widths up to 720 pixels. In addition,
overlay source and destination ChromaKeying are also supported. Overlay source/destination
ChromaKeying enables blending of the overlay with the underlying graphics background. Destination
color/chroma keying can be used to handle occluded portions of the overlay window on a pixel by pixel
basis, which is actually an underlay. Source color/chroma keying is used to handle transparency based on
the overlay window on a pixel by pixel basis. This is used when “blue screening” an image in order to
overlay the image on a new background later.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 82820 | Interface IC |
| 82830009 | MOTOR 12VDC 2100RPM |
| 82830010 | MOTOR 24VDC 2100RPM |
| 82830MP | Intel 830MP Chipset: 82830MP Graphics and Memory Controller Hub (GMCH-M) |
| 82840 | Interface IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 82-816-1000 | 功能描述:RF 連接器 ST Plug RG-108A 50 Ohm RoHS:否 制造商:Bomar Interconnect 產(chǎn)品:Connectors 射頻系列:BNC 型式:Jack (Female) 極性: 觸點(diǎn)電鍍:Gold 阻抗: 端接類型:Solder 主體類型:Straight Bulkhead 電纜類型: |
| 82-81641 | 制造商:CHOMERICS (PARKER) 功能描述: |
| 828168-1 | 制造商:TE Connectivity 功能描述:7P MT RV100 CONNECTOR |
| 828168-2 | 功能描述:7P MT TAND BU STECK RoHS:是 類別:連接器，互連式 >> 矩形 - 自由懸掛，面板安裝 系列:AMPMODU RV 100 RoHS指令信息:5-643816-8 Statement of Compliance 3D 型號(hào):5-643816-8.pdf 標(biāo)準(zhǔn)包裝:500 系列:MTA-100 連接器類型:插座 觸點(diǎn)類型：:母形插口 位置數(shù):28 間距:0.100"（2.54mm） 行數(shù):1 行間距:- 安裝類型:自由懸掛 緊固型:鎖銷滑道 電纜端接:IDC 導(dǎo)線類型:離散式或帶狀纜線 線規(guī):28 AWG 特點(diǎn):閉端，帶電極標(biāo)記 觸點(diǎn)表面涂層:錫 觸點(diǎn)涂層厚度:80µin（2.03µm） 顏色:綠 包裝:散裝 相關(guān)產(chǎn)品:A1998-ND - HEAD ASSEM TOOL FOR MTA-100 RECP |
| 828169-1 | 功能描述:集管和線殼 2X7P MT TAND SOCKET CONNECTOR RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點(diǎn)類型:Pin (Male) 節(jié)距:1 mm 位置/觸點(diǎn)數(shù)量:16 排數(shù):1 安裝風(fēng)格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點(diǎn)材料:Brass 觸點(diǎn)電鍍:Gold 制造商:Hirose Connector |
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