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VideoPortControlRegisters
Table2-6.VideoPortInterruptStatusRegister(VPIS)FieldDescriptions(continued)
Bitfield
(1)
symval
(1)
ValueDescription
17COVRBOF(value)CaptureoverrunonchannelBinterruptdetectedbit.COVRBissetwhendatainthe
FIFOwasoverwrittenbeforebeingreadout(bytheEDMA).
DEFAULT0Nointerruptisdetected.
NONE
CLEAR1Interruptisdetected.Bitiscleared.
16GPIOOF(value)VideoportgeneralpurposeI/Ointerruptdetectedbit.
DEFAULT0Nointerruptisdetected.
NONE
CLEAR1Interruptisdetected.Bitiscleared.
15Reserved-0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothisfield
hasnoeffect.
14DCNAOF(value)Displaycompletenotacknowledged.IndicatesthattheF1D,F2D,orFRMDbitthat
causedthedisplaycompleteinterruptwasnotclearedpriortothestartofthenext
gatingfieldorframe.
DEFAULT0Nointerruptisdetected.
NONE
CLEAR1Interruptisdetected.Bitiscleared.
13DCMPOF(value)Displaycomplete.Indicatesthattheentireframehasbeendrivenoutoftheport.The
EDMAcompleteinterruptcanbeusedtodeterminewhenthelastdatahasbeen
transferredfrommemorytotheFIFO.
DCMPissetafterdisplayinganentirefieldorframe(whenF1D,F2DorFRMDin
VDSTATareset)dependingontheCON,FRAME,DF1,andDF2controlbitsin
VDCTL.
DEFAULT0Nointerruptisdetected.
NONE
CLEAR1Interruptisdetected.Bitiscleared.
12DUNDOF(value)Displayunder-run.IndicatesthatthedisplayFIFOranoutofdata.
DEFAULT0Nointerruptisdetected.
NONE
CLEAR1Interruptisdetected.Bitiscleared.
11TICKOF(value)Systemtimeclocktickinterruptdetectedbit.
BT.656,Y/Ccapturemodeorrawdatamode-Notused.
TCIcapturemode-TICKissetwhentheTCKENbitinTCICTLissetandthedesired
numberofsystemtimeclocktickshasoccurredasprogrammedinTCITICKS.
DEFAULT0Nointerruptisdetected.
NONE
CLEAR1Interruptisdetected.Bitiscleared.
10STCOF(value)Systemtimeclockinterruptdetectedbit.
BT.656,Y/Ccapturemodeorrawdatamode-Notused.
TCIcapturemode-STCissetwhenthesystemtimeclockreachesanabsolutetime
asprogrammedinTCISTCMPLandTCISTCMPMregistersandtheSTENbitin
TCICTLisset.
DEFAULT0Nointerruptisdetected.
NONE
CLEAR1Interruptisdetected.Bitiscleared.
9-8Reserved-0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothisfield
hasnoeffect.
42VideoPortSPRUEM1–May2007
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