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Contents
Preface..............................................................................................................................13
1Overview.................................................................................................................16
1.1VideoPort................................................................................................................17
1.2VideoPortFIFO.........................................................................................................19
1.2.1EDMAInterface.................................................................................................19
1.2.2VideoCaptureFIFOConfigurations..........................................................................20
1.2.3VideoDisplayFIFOConfigurations..........................................................................23
1.3VideoPortRegisters..................................................................................................25
1.4VideoPortPinMapping..............................................................................................26
1.4.1VDINBusUsageforCaptureModes........................................................................27
1.4.2VDOUTDataBusUsageforDisplayModes................................................................28
1.5VideoPortPinMultiplexing........................................................................................28
1.6VideoPortClocking....................................................................................................28
2VideoPort...............................................................................................................29
2.1ResetOperation........................................................................................................30
2.1.1Power-OnReset................................................................................................30
2.1.2PeripheralBusReset..........................................................................................30
2.1.3SoftwarePortReset............................................................................................30
2.1.4CaptureChannelReset........................................................................................31
2.1.5DisplayChannelReset.........................................................................................31
2.2InterruptOperation....................................................................................................31
2.3EDMAOperation........................................................................................................32
2.3.1CaptureEDMAEventGeneration............................................................................32
2.3.2DisplayEDMAEventGeneration.............................................................................33
2.3.3EDMASizeandThresholdRestrictions.....................................................................33
2.3.4EDMAInterfaceOperation....................................................................................34
2.4VideoPortControlRegisters......................................................................................34
2.4.1VideoPortControlRegister(VPCTL)........................................................................35
2.4.2VideoPortStatusRegister(VPSTAT).......................................................................37
2.4.3VideoPortInterruptEnableRegister(VPIE)................................................................38
2.4.4VideoPortInterruptStatusRegister(VPIS)................................................................40
3VideoCapturePort...................................................................................................45
3.1VideoCaptureModeSelection....................................................................................46
3.2BT.656VideoCaptureMode........................................................................................46
3.2.1BT.656CaptureChannels.....................................................................................46
3.2.2BT.656TimingReferenceCodes.............................................................................46
3.2.3BT.656ImageWindowandCapture.........................................................................48
3.2.4BT.656DataSampling.........................................................................................49
3.2.5BT.656FIFOPacking..........................................................................................49
3.3Y/CVideoCaptureMode............................................................................................50
3.3.1Y/CCaptureChannels.........................................................................................50
3.3.2Y/CTimingReferenceCodes.................................................................................50
SPRUEM1–May2007TableofContents3
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