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4.2.1DisplayTimingReferenceCodes
VDOUT[9−2]
80.0
80.0
10.0
FF.C
00.0
00.0
Cb 0
Y 2
Cb 359
Y 718
Cr 359
Y 719
Y 0
Cr 0
Y 1
Cb 1
One Line
XY.0
10.0
80.0
10.0
FF.C
00.0
00.0
XY.0
80.0
80.0
10.0
FF.C
00.0
00.0
XY.0
10.0
855 856 857 0 1 2 718 719 720 721 722 723720 721 722 723
FPCOUNT
SAVEAV Blanking Data EAV
Active Video
Blanking
VCLKOUT
Next Line
4
4268 1440
One Line
861 862 863 0 1 2 718 719 720 721 722 723720 721 722 723
FPCOUNT
Active VideoBlanking
VCLKOUT
Next Line
4
4280 1440
VDOUT[9−2]
80.0
80.0
10.0
FF.C
00.0
00.0
Cb 0
Y 2
Cb 359
Y 718
Cr 359
Y 719
Y 0
Cr 0
Y 1
Cb 1
XY.0
10.0
80.0
10.0
FF.C
00.0
00.0
XY.0
80.0
80.0
10.0
FF.C
00.0
00.0
XY.0
10.0
SAVEAV Blanking Data EAV
BT.656VideoDisplayMode
Theendactivevideo(EAV)codeandstartactivevideo(SAV)codeareissuedatthestartofeachvideo
line.EAVandSAVcodeshaveafixedformat.TheformatisshowninTable3-2.TheEAVandSAV
codesdefinetheendandstartofthehorizontal-blankinginterval,respectively,andtheyalsoindicatethe
currentfieldnumberandtheverticalblankinginterval.TheSAVandEAVcodeshavea4-bitprotection
fieldtoensurevalidcodes.ThevideodisplaymodulegeneratestheseprotectionbitsaspartoftheSAV
andEAVcodes.Table3-3showspossiblecombinationsofvalidSAVandEAVcodeswiththeirprotection
bits.ThevideodisplaypipelinegeneratesSAVandEAVsynccodesandinsertsthemintotheoutput
videostreamaccordingtotheBT.656specification.
TheBT.656linetimingisshowninFigure4-9andFigure4-10.EachlinebeginswithanEAVcode,a
blankinginterval,anSAVcode,followedbythelineofactivevideo.TheEAVcodeindicatestheendof
activevideoforthepreviousline,andtheSAVcodeindicatesthestartofactivevideoforthecurrentline.
Figure4-9.525/60BT.656HorizontalBlankingTiming
Figure4-10.625/50BT.656HorizontalBlankingTiming
SPRUEM1–May2007VideoDisplayPort99
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