Filter
Top Products
SPRUEM1–May2007
VideoCapturePort
Videocaptureworksbysamplingvideodataontheinputpinsandsavingittothevideo
portFIFO.Whentheamountofcaptureddatareachesaprogrammedthresholdlevel,
anEDMAisperformedtomovedatafromtheFIFOintoDSPmemory.Insomecases,
colorseparationisperformedontheincomingvideodatarequiringmultipleFIFOsand
EDMAstobeused.
Thevideoportenablescaptureofbothinterlacedandprogressivescandata.Interlaced
capturecanbeperformedoneitherafield-by-fieldoraframe-by-framebasis.Acapture
windowspecifiesthedatatobecapturedwithineachfield.Frameandfield
synchronizationcanbeperformedusingembeddedsynccodesorconfigurablecontrol
inputsallowinggluelessinterfacetovariousencodersandADCs.
Topic..................................................................................................Page
3.1VideoCaptureModeSelection....................................................46
3.2BT.656VideoCaptureMode.......................................................46
3.3Y/CVideoCaptureMode............................................................50
3.4BT.656andY/CModeFieldandFrameOperation.........................51
3.5VideoInputFiltering..................................................................57
3.6AncillaryDataCapture...............................................................60
3.7RawDataCaptureMode.............................................................61
3.8TCICaptureMode.....................................................................63
3.9CaptureLineBoundaryConditions.............................................67
3.10CapturingVideoinBT.656orY/CMode.......................................67
3.11CapturingVideoinRawDataMode.............................................68
3.12CapturingDatainTCICaptureMode...........................................69
3.13VideoCaptureRegisters............................................................70
3.14VideoCaptureFIFORegisters....................................................91
SPRUEM1–May2007VideoCapturePort45
SubmitDocumentationFeedback