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5.1.12VideoPortPinInterruptClearRegister(PICLR)
GPIORegisters
PICLRisanaliasofthevideoportpininterruptstatusregister(PISTAT)forwritesonly.Writinga1toabit
ofPICLRclearsthecorrespondingbitinPISTAT.Writinga0hasnoeffect.Registerreadsreturnall0s.
Thevideoportpininterruptclearregister(PICLR)isshowninFigure5-12anddescribedinTable5-13.
Figure5-12.VideoPortPinInterruptClearRegister(PICLR)
3124
Reserved
R-0
2322212019181716
ReservedPICLR22PICLR21PICLR20PICLR19PICLR18PICLR17PICLR16
R-0W-0W-0W-0W-0W-0W-0W-0
15141312111098
PICLR15PICLR14PICLR13PICLR12ReservedReservedPICLR9PICLR8
W-0W-0W-0W-0R-0R-0W-0W-0
76543210
PICLR7PICLR6PICLR5PICLR4PICLR3PICLR2ReservedReserved
W-0W-0W-0W-0W-0W-0R-0R-0
LEGEND:R/W=Read/Write;R=Readonly;-n=valueafterreset
Table5-13.VideoPortPinInterruptClearRegister(PICLR)FieldDescriptions
Bitfield
(1)
symval
(1)
ValueDescription
31-23Reserved-0Reserved.Thereservedbitlocationisalwaysreadas0.Avaluewrittentothisfield
hasnoeffect.
22PICLR22OF(value)AllowsPISTAT22bittobeclearedtoalogiclow.
DEFAULT0Noeffect.
NONE
VCTL3CLR1ClearsPISTAT22(VCTL3)bitto0.
21PICLR21OF(value)AllowsPISTAT21bittobeclearedtoalogiclow.
DEFAULT0Noeffect.
NONE
VCTL2CLR1ClearsPISTAT21(VCTL2)bitto0.
20PICLR20OF(value)AllowsPISTAT20bittobeclearedtoalogiclow.
DEFAULT0Noeffect.
NONE
VCTL1CLR1ClearsPISTAT20(VCTL1)bitto0.
19-2PICLR[19-2]OF(value)AllowsPISTAT[19-2]bittobeclearedtoalogiclow.
DEFAULT0Noeffect.
NONE
VDATAnCLR1ClearsPISTAT[n](VDATA[n])bitto0.
(1)
ForCSLimplementation,usethenotationVP_PICLR_PICLRn_symval
General-PurposeI/OOperation 166SPRUEM1–May2007
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