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3.13.2VideoCaptureChannelAControlRegister(VCACTL)
VideoCaptureRegisters
Table3-14.VideoCaptureChannelxStatusRegister(VCxSTAT)FieldDescriptions
Description
Bitfield
(1)
symval
(1)
ValueBT.656orY/CModeRawDataModeTCIMode
31FSYNCOF(value)Currentframesyncbit.
DEFAULT0VCOUNT=VINT1orNotused.Notused.
VINT2,asselectedby
CLEARED
theFSCL2bitin
VCxVINT.
SET1VCOUNT=1infieldNotused.Notused.
1.
30FRMCOF(value)Frame(data)capturedbit.Write1toclearthebit,awriteof0hasnoeffect.
DEFAULT0CompleteframehasCompletedatablockhasEntiredatapackethasnotbeen
notbeencaptured.notbeencaptured.captured.
NONE
CAPTURED1CompleteframehasCompletedatablockhasEntiredatapackethasbeen
beencaptured.beencaptured.captured.
CLEAR
29F2COF(value)Field2capturedbit.Write1toclearthebit,awriteof0hasnoeffect.
DEFAULT0Field2hasnotbeenNotused.Notused.
captured.
NONE
CAPTURED1Field2hasbeenNotused.Notused.
captured.
CLEAR
28F1COF(value)Field1capturedbit.Write1toclearthebit,awriteof0hasnoeffect.
DEFAULT0Field1hasnotbeenNotused.Notused.
captured.
NONE
CAPTURED1Field1hasbeenNotused.Notused.
captured.
CLEAR
27-16VCYPOSOF(value)0-FFFhCurrentVCOUNTUpper12bitsofthedataUpper12bitsofthedata
valueandthelinethatcounter.counter.
iscurrentlybeing
received(withinthe
currentfield).
DEFAULT0
15-13Reserved-0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothisfield
hasnoeffect.
12VCFLDOF(value)VCFLDbitindicateswhichfieldiscurrentlybeingcaptured.TheVCFLDbitisupdated
basedonthefielddetectionlogicselectedbytheFLDDbitinVCACTL.
DEFAULT0Field1isactive.Notused.Notused.
NONE
DETECTED1Field2isactive.Notused.Notused.
11-0VCXPOSOF(value)0-FFFhCurrentHCOUNTLower12bitsofthedataLower12bitsofthedata
value.Thepixelindexcounter.counter.
ofthelastreceived
pixel.
DEFAULT0
(1)
ForCSLimplementation,usethenotationVP_VCxSTAT_field_symval
VideocaptureiscontrolledbythevideocapturechannelAcontrolregister(VCACTL)shownin
Figure3-22anddescribedinTable3-15.
VideoCapturePort 72SPRUEM1–May2007
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