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VideoPortControlRegisters
Table2-6.VideoPortInterruptStatusRegister(VPIS)FieldDescriptions(continued)
Bitfield
(1)
symval
(1)
ValueDescription
7LFDAOF(value)LongfielddetectedonchannelAinterruptdetectedbit.(Alongfieldisonlydetected
whentheVRSTbitinVCACTLisclearedto0;whenVRST=1,alongfieldisalways
detected.)
BT.656orY/Ccapturemode-LFDAissetwhenlongfielddetectionisenabledand
VCOUNTisnotresetbeforeVCOUNT=YSTOP+1.
Rawdatamode,orTCIcapturemodeordisplaymode-Notused.
DEFAULT0Nointerruptisdetected.
NONE
CLEAR1Interruptisdetected.Bitiscleared.
6SFDAOF(value)ShortfielddetectedonchannelAinterruptdetectedbit.
BT.656orY/Ccapturemode-SFDAissetwhenshortfielddetectionisenabledand
VCOUNTisresetbeforeVCOUNT=YSTOP.
Rawdatamode,orTCIcapturemodeordisplaymode-Notused.
DEFAULT0Nointerruptisdetected.
NONE
CLEAR1Interruptisdetected.Bitiscleared.
5VINTA2OF(value)ChannelAfield2verticalinterruptdetectedbit.
BT.656,orY/Ccapturemodeoranydisplaymode-VINTA2issetwhenavertical
interruptoccurredinfield2.
RawdatamodeorTCIcapturemode-Notused.
DEFAULT0Nointerruptisdetected.
NONE
CLEAR1Interruptisdetected.Bitiscleared.
4VINTA1OF(value)ChannelAfield1verticalinterruptdetectedbit.
BT.656,orY/Ccapturemodeoranydisplaymode-VINTA1issetwhenavertical
interruptoccurredinfield1.
RawdatamodeorTCIcapturemode-Notused.
DEFAULT0Nointerruptisdetected.
NONE
CLEAR1Interruptisdetected.Bitiscleared.
3SERRAOF(value)ChannelAsynchronizationerrorinterruptdetectedbit.
BT.656orY/Ccapturemode-SynchronizationparityerroronchannelA.AnSERRA
typicallyrequiresresettingthechannel(RSTCH)ortheport(VPRST).
RawdatamodeorTCIcapturemode-Notused.
DEFAULT0Nointerruptisdetected.
NONE
CLEAR1Interruptisdetected.Bitiscleared.
2CCMPAOF(value)CapturecompleteonchannelAinterruptdetectedbit.(Dataisnotinmemoryuntilthe
EDMAtransferiscomplete.)
BT.656orY/Ccapturemode-CCMPAissetaftercapturinganentirefieldorframe
(whenF1C,F2C,orFRMCinVCASTATareset)dependingontheCON,FRAME,
CF1,andCF2controlbitsinVCACTL.
Rawdatamode-IfRDFEbitisset,CCMPAissetwhenF1C,F2C,orFRMCin
VCASTATisset(whenthedatacounter=thecombinedVCYSTOP/VCXSTOPvalue)
dependingontheCON,FRAME,CF1,andCF2controlbitsinVCACTL.IfRDFEbitis
notset,CCMPAissetwhenFRMCinVCASTATisset(whenthedatacounter=the
combinedVCYSTOP/VCXSTOPvalue)
TCIcapturemode-CCMPAissetwhenFRMCinVCASTATisset(whenthedata
counter=thecombinedVCYSTOP/VCXSTOPvalue).
DEFAULT0Nointerruptisdetected.
NONE
CLEAR1Interruptisdetected.Bitiscleared.
SPRUEM1–May2007VideoPort43
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