HT67F5652 datasheet(95/224 Pages) HOLTEK

95 / 224 page

Rev. 1.00

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Rev. 1.00

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HT67F5652

24-Bit Delta Sigma A/D + LCD Flash MCU

HT67F5652

24-Bit Delta Sigma A/D + LCD Flash MCU

• PTMnRPH Register (n=1 or 2)

Bit

Na�e

—

R/W

—

R/W

POR

—

Bit7~2

Unimplemented,readas"0"

Bit1~0

PTMnRPH:TMnCCRPHighByteRegisterbit1~bit0

TMn10-bitCCRPbit9~bit8

Periodic Type TM Operating Modes

ThePeriodicTypeTMcanoperateinoneoffiveoperatingmodes,CompareMatchOutputMode,

PWMOutputMode,SinglePulseOutputMode,CaptureInputModeorTimer/CounterMode.The

operatingmodeisselectedusingtheTnM1andTnM0bitsinthePTMnC1register.

Compare Match Output Mode

Toselectthismode,bitsTnM1andTnM0inthePTMnC1register,shouldbeallclearedto00

respectively.Inthismodeoncethecounterisenabledandrunningitcanbeclearedbythree

methods.Theseareacounteroverflow,acomparematchfromComparatorAandacomparematch

fromComparatorP.WhentheTnCCLRbitislow,therearetwowaysinwhichthecountercanbe

cleared.OneiswhenacomparematchoccursfromComparatorP,theotheriswhentheCCRPbits

areallzerowhichallowsthecountertooverflow.HereboththeTnAFandTnPFinterruptrequest

flagsforComparatorAandComparatorPrespectively,willbothbegenerated.

IftheTnCCLRbitinthePTMnC1registerishighthenthecounterwillbeclearedwhenacompare

matchoccursfromComparatorA.However,hereonlytheTnAFinterruptrequestflagwillbe

generatedevenifthevalueoftheCCRPbitsislessthanthatoftheCCRAregisters.Thereforewhen

TnCCLRishighnoTnPFinterruptrequestflagwillbegenerated.IntheCompareMatchOutput

Mode,theCCRAcannotbeclearedtozero.

IftheCCRAbitsareallzero,thecounterwilloverflowwhenitreachesitsmaximum10-bit,3FF

Hex,value,howeverheretheTnAFinterruptrequestflagwillnotbegenerated.

Asthenameofthemodesuggests,afteracomparisonismade,theTMoutputpin,willchange

state.TheTMoutputpinconditionhoweveronlychangesstatewhenaTnAFinterruptrequestflag

isgeneratedafteracomparematchoccursfromComparatorA.TheTnPFinterruptrequestflag,

generatedfromacomparematchfromComparatorP,willhavenoeffectontheTMoutputpin.The

wayinwhichtheTMoutputpinchangesstatearedeterminedbytheconditionoftheTnIO1and

TnIO0bitsinthePTMnC1register.TheTMoutputpincanbeselectedusingtheTnIO1andTnIO0

bitstogohigh,togolowortotogglefromitspresentconditionwhenacomparematchoccursfrom

ComparatorA.TheinitialconditionoftheTMoutputpin,whichissetupaftertheTnONbitchanges

fromlowtohigh,issetupusingtheTnOCbit.NotethatiftheTnIO1,TnIO0bitsarezerothenno

pinchangewilltakeplace.

HT67F5652 Datasheet(PDF) 95 Page - Holtek Semiconductor Inc

HT67F5652 Datasheet(HTML) 95 Page - Holtek Semiconductor Inc

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