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VideoCaptureRegisters
Table3-23.VideoCaptureChannelBControlRegister(VCBCTL)FieldDescriptions(continued)
Description
Bitfield
(1)
symval
(1)
ValueBT.656orY/CModeRawDataModeTCIMode
16HRSTOF(value)HCOUNTresetmethodbit.
DEFAULT0EAVorVCTL1activeedge.Notused.Notused.
EAV
SAV1SAVorVCTL1inactiveedge.Notused.Notused.
15VCENOF(value)Videocaptureenablebit.OtherbitsinVCBCTL(exceptRSTCHandBLKCAPbits)
mayonlybechangedwhenVCEN=0.
DEFAULT0Videocaptureisdisabled.
DISABLE
ENABLE1Videocaptureisenabled.
14-13Reserved-0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothisfield
hasnoeffect..
12LFDEOF(value)Longfielddetectenablebit.
DEFAULT0Longfielddetectisdisabled.Notused.Notused.
DISABLE
ENABLE1Longfielddetectisenabled.Notused.Notused.
11SFDEOF(value)Shortfielddetectenablebit.
DEFAULT0Shortfielddetectisdisabled.Notused.Notused.
DISABLE
ENABLE1Shortfielddetectisenabled.Notused.Notused.
10RESMPLOF(value)Chromare-samplingenablebit.
DEFAULT0Chromare-samplingisdisabled.Notused.Notused.
DISABLE
ENABLE1ChromaishorizontallyNotused.Notused.
re-sampledfrom4:2:2co-sitedto
4:2:0interspersedbeforesaving
tochromabuffers.
9Reserved-0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothisfield
hasnoeffect.
8SCALEOF(value)Scalingselectbit.
DEFAULT0NoscalingNotused.Notused.
NONE
HALF1½scalingNotused.Notused.
7CON
(2)
OF(value)Continuouscaptureenablebit.
DEFAULT0Continuouscaptureisdisabled.
DISABLE
ENABLE1Continuouscaptureisenabled.
6FRAME
(2)
OF(value)Captureframe(data)bit.
DEFAULT0Donotcaptureframe.DonotcapturesingleDonotcapturesingle
datablock.packet.
NONE
FRMCAP1Captureframe.CapturesingledataCapturesinglepacket.
block.
5CF2
(2)
OF(value)Capturefield2bit.
NONE0Donotcapturefield2.Notused.Notused.
DEFAULT1Capturefield2.Notused.Notused.
FLDCAP
(2)
Forcompleteencodingofthesebits,seeTable3-6,Table3-11,andTable3-12.
SPRUEM1–May2007VideoCapturePort83
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