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3.3.3Y/CImageWindowandCapture.............................................................................50
3.3.4Y/CFIFOPacking..............................................................................................51
3.4BT.656andY/CModeFieldandFrameOperation..........................................................51
3.4.1CaptureDeterminationandNotification.....................................................................52
3.4.2VerticalSynchronization.......................................................................................53
3.4.3HorizontalSynchronization....................................................................................55
3.4.4FieldIdentification..............................................................................................56
3.4.5ShortandLongFieldDetect..................................................................................57
3.5VideoInputFiltering..................................................................................................57
3.5.1InputFilterModes..............................................................................................58
3.5.2ChrominanceRe-samplingOperation.......................................................................58
3.5.3ScalingOperation...............................................................................................58
3.5.4EdgePixelReplication.........................................................................................59
3.6AncillaryDataCapture...............................................................................................60
3.6.1HorizontalAncillary(HANC)DataCapture..................................................................61
3.6.2VerticalAncillary(VANC)DataCapture.....................................................................61
3.7RawDataCaptureMode.............................................................................................61
3.7.1RawDataCaptureNotification................................................................................61
3.7.2RawDataFIFOPacking.......................................................................................62
3.8TCICaptureMode......................................................................................................63
3.8.1TCICaptureFeatures..........................................................................................63
3.8.2TCIDataCapture...............................................................................................63
3.8.3TCICaptureErrorDetection..................................................................................64
3.8.4SynchronizingtheSystemClock.............................................................................64
3.8.5TCIDataCaptureNotification.................................................................................65
3.8.6WritingtotheFIFO.............................................................................................66
3.8.7ReadingfromtheFIFO........................................................................................66
3.9CaptureLineBoundaryConditions..............................................................................67
3.10CapturingVideoinBT.656orY/CMode.......................................................................67
3.10.1HandlingFIFOOverruninBT.656orY/CMode..........................................................68
3.11CapturingVideoinRawDataMode.............................................................................68
3.11.1HandlingFIFOOverrunConditioninRawDataMode...................................................69
3.12CapturingDatainTCICaptureMode............................................................................69
3.12.1HandlingFIFOOverrunConditioninTCICaptureMode.................................................70
3.13VideoCaptureRegisters............................................................................................70
3.13.1VideoCaptureChannelxStatusRegister(VCASTAT,VCBSTAT)....................................71
3.13.2VideoCaptureChannelAControlRegister(VCACTL)...................................................72
3.13.3VideoCaptureChannelxField1StartRegister(VCxSTRT1)..........................................75
3.13.4VideoCaptureChannelxField1StopRegister(VCxSTOP1)..........................................76
3.13.5VideoCaptureChannelxField2StartRegister(VCxSTRT2)..........................................77
3.13.6VideoCaptureChannelxField2StopRegister(VCxSTOP2)..........................................78
3.13.7VideoCaptureChannelxVerticalInterruptRegister(VCxVINT).......................................79
3.13.8VideoCaptureChannelxThresholdRegister(VCATHRLD,VCBTHRLD)............................80
3.13.9VideoCaptureChannelxEventCountRegister(VCxEVTCT)..........................................81
3.13.10VideoCaptureChannelBControlRegister(VCBCTL).................................................81
3.13.11TCICaptureControlRegister(TCICTL)..................................................................84
3.13.12TCIClockInitializationLSBRegister(TCICLKINITL)...................................................85
3.13.13TCIClockInitializationMSBRegister(TCICLKINITM)..................................................86
4ContentsSPRUEM1–May2007
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