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HT45F4N Datasheet(PDF) 95 Page - Holtek Semiconductor Inc |
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HT45F4N Datasheet(HTML) 95 Page - Holtek Semiconductor Inc |
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95 / 170 page  Rev. 1.30 9� De�e��e� 1�� �01� Rev. 1.30 95 De�e��e� 1�� �01� HT45F4N/HT45FH4N Power Bank Flash MCU HT45F4N/HT45FH4N Power Bank Flash MCU TMnRPH Register Bit 7 6 5 4 3 2 1 0 Na�e — — — — — — D9 D8 R/W — — — — — — R/W R/W POR — — — — — — 0 0 Bit7~2 Unimplemented,readas“0” Bit1~0 TMnRPH:TMnCCRPHighByteRegisterbit1~bit0 TMn10-bitCCRPbit9~bit8 Periodic Type TM Operating Modes ThePeriodicTypeTMcanoperateinoneoffiveoperatingmodes,CompareMatchOutputMode, PWMOutputMode,SinglePulseOutputMode,CaptureInputModeorTimer/CounterMode.The operatingmodeisselectedusingtheTnM1andTnM0bitsintheTMnC1register. Compare Match Output Mode Toselectthismode,bitsTnM1andTnM0intheTMnC1register,shouldbeallclearedto00 respectively.Inthismodeoncethecounterisenabledandrunningitcanbeclearedbythree methods.Theseareacounteroverflow,acomparematchfromComparatorAandacomparematch fromComparatorP.WhentheTnCCLRbitislow,therearetwowaysinwhichthecountercanbe cleared.OneiswhenacomparematchoccursfromComparatorP,theotheriswhentheCCRPbits areallzerowhichallowsthecountertooverflow.HereboththeTnAFandTnPFinterruptrequest flagsforComparatorAandComparatorPrespectively,willbothbegenerated. IftheTnCCLRbitintheTMnC1registerishighthenthecounterwillbeclearedwhenacompare matchoccursfromComparatorA.However,hereonlytheTnAFinterruptrequestflagwillbe generatedevenifthevalueoftheCCRPbitsislessthanthatoftheCCRAregisters.Thereforewhen TnCCLRishighnoTnPFinterruptrequestflagwillbegenerated.IntheCompareMatchOutput Mode,theCCRAcannotbesetto“0”. Asthenameofthemodesuggests,afteracomparisonismade,theTMoutputpin,willchange state.TheTMoutputpinconditionhoweveronlychangesstatewhenaTnAFinterruptrequestflag isgeneratedafteracomparematchoccursfromComparatorA.TheTnPFinterruptrequestflag, generatedfromacomparematchfromComparatorP,willhavenoeffectontheTMoutputpin.The wayinwhichtheTMoutputpinchangesstatearedeterminedbytheconditionoftheTnIO1and TnIO0bitsintheTMnC1register.TheTMoutputpincanbeselectedusingtheTnIO1andTnIO0 bitstogohigh,togolowortotogglefromitspresentconditionwhenacomparematchoccursfrom ComparatorA.TheinitialconditionoftheTMoutputpin,whichissetupaftertheTnONbitchanges fromlowtohigh,issetupusingtheTnOCbit.NotethatiftheTnIO1,TnIO0bitsarezerothenno pinchangewilltakeplace. |
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