參數(shù)資料
型號: 82865GV
廠商: Intel Corp.
英文描述: Intel 865G/865GV Graphics and Memory Controller Hub
中文描述: 英特爾865G/865GV圖形和內(nèi)存控制器中樞
文件頁數(shù): 173/249頁
文件大?。?/td> 3540K
代理商: 82865GV
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁第162頁第163頁第164頁第165頁第166頁第167頁第168頁第169頁第170頁第171頁第172頁當(dāng)前第173頁第174頁第175頁第176頁第177頁第178頁第179頁第180頁第181頁第182頁第183頁第184頁第185頁第186頁第187頁第188頁第189頁第190頁第191頁第192頁第193頁第194頁第195頁第196頁第197頁第198頁第199頁第200頁第201頁第202頁第203頁第204頁第205頁第206頁第207頁第208頁第209頁第210頁第211頁第212頁第213頁第214頁第215頁第216頁第217頁第218頁第219頁第220頁第221頁第222頁第223頁第224頁第225頁第226頁第227頁第228頁第229頁第230頁第231頁第232頁第233頁第234頁第235頁第236頁第237頁第238頁第239頁第240頁第241頁第242頁第243頁第244頁第245頁第246頁第247頁第248頁第249頁
174
Intel
82865G/82865GV GMCH Datasheet
Functional Description
5.4.4.2
Overlay Plane
The overlay engine provides a method of merging either video capture data (from an external video
capture device) or data delivered by the processor, with the graphics data on the screen. The source
data can be mirrored horizontally, vertically, or both.
Source/Destination Color Keying/ChromaKeying
Overlay source/destination ChromaKeying enables blending of the overlay with the underlying
graphics background. Destination color keying/ChromaKeying can be used to handle occluded
portions of the overlay window on a pixel by pixel basis that is actually an underlay. Destination
ChromaKeying would only be used for YUV passthrough to TV. Destination color keying supports
a specific color (8- or 15-bit) mode as well as 32-bit alpha blending.
Source color keying/ChromaKeying is used to handle transparency based on the overlay window
on a pixel-by-pixel basis. This is used when “blue screening” an image to overlay the image on a
new background later.
Gamma Correction
To compensate for overlay color intensity loss due to the non-linear response between display
devices, the overlay engine supports independent gamma correction. This allows the overlay data
to be converted to linear data or corrected for the display device when not blending.
YUV-to-RGB Conversion
The format conversion can be bypassed in the case of RGB source data. The format conversion
assumes that the YUV data is input in the 4:4:4 format and uses the full range scale.
Maximum Resolution and Frequency
The maximum frequency supported by the overlay logic is 170 MHz. The maximum resolution is
dependent on a number of variables.
Deinterlacing Support
For display on a progressive computer monitor, interlaced data that has been formatted for display
on interlaced monitors (TV), needs to be de-interlaced. The simple approaches to de-interlacing
create unwanted display artifacts. More advanced de-interlacing techniques have a large cost
associated with them. The compromise solution is to provide a low cost but effective solution and
enable both hardware and software based external solutions. Software based solutions are enabled
through a high bandwidth transfer to system memory and back.
Dynamic Bob and Weave.
Interlaced data that originates from a video camera creates two fields
that are temporally offset by 1/60 of a second. There are several schemes to deinterlace the video
stream: line replication, vertical filtering, field merging, and vertical temporal filtering. Field
merging takes lines from the previous field and inserts them into the current field to construct the
frame – this is known as Weaving. This is the best solution for images with little motion; however,
showing a frame that consists of the two fields will have serration or feathering of moving edges
when there is motion in the scene. Vertical filtering or “Bob” interpolates adjacent lines rather
replicating the nearest neighbor. This is the best solution for images with motion; however, it will
have reduced spatial resolution in areas that have no motion and introduces
jaggies
. In absence of
any other deinterlacing, these form the baseline and are supported by the GMCH.
相關(guān)PDF資料
PDF描述
8288 Bus Controller for SAB 8086 Family Processors
828 2 X 2 8-Pole Filters
8291A GPIB TALKER/LISTENER
829B SILICON 28V HYPERABRUPT VARACTOR DIODES
829A SILICON 28V HYPERABRUPT VARACTOR DIODES
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
82865N 功能描述:HEX DIE 5/8-11 制造商:apex tool group 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:1
828661-1 功能描述:汽車連接器 25P JUN-TIMER CONN RoHS:否 制造商:Amphenol SINE Systems 產(chǎn)品:Contacts 系列:ATP 位置數(shù)量: 型式:Female 安裝風(fēng)格: 端接類型: 觸點(diǎn)電鍍:Nickel
828662-1 制造商:TE Connectivity 功能描述:CONN TIMER CONN M 16 POS 5MM SLDR ST TH - Bulk 制造商:TE Connectivity 功能描述:16P JUN-TIMER STECK 制造商:TE Connectivity 功能描述:Conn Timer Connector M 16 POS 5mm Solder ST Thru-Hole
82866N 功能描述:HEX DIE 5/8-18 制造商:apex tool group 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:1
82867001 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MOTOR GEARED 12VDC 344RPM