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HT45F5R Datasheet(PDF) 62 Page - Holtek Semiconductor Inc |
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HT45F5R Datasheet(HTML) 62 Page - Holtek Semiconductor Inc |
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62 / 138 page  Rev. 1.10 �� De�e��e� 1�� �01� Rev. 1.10 �� De�e��e� 1�� �01� HT45F5R Charger ASSP Flash MCU HT45F5R Charger ASSP Flash MCU TM Interrupts TheStandardTypeandPeriodicTypeTMseachhavetwointernalinterrupts,oneforeachofthe internalcomparatorAorcomparatorP,whichgenerateaTMinterruptwhenacomparematch conditionoccurs.WhenaTMinterruptisgenerateditcanbeusedtoclearthecounterandalsoto changethestateoftheTMoutputpin. TM External Pins EachoftheTMs,irrespectiveofwhattype,hasoneortwoTMinputpins,withthelabelxTCKnand xTPnIrespectively.ThexTMninputpin,xTCKn,isessentiallyaclocksourceforthexTMnandis selectedusingthexTnCK2~xTnCK0bitsinthexTMnC0register.ThisexternalTMinputpinallows anexternalclocksourcetodrivetheinternalTM.ThexTCKninputpincanbechosentohaveeither arisingorfallingactiveedge.TheSTCKandPTCKnpinsarealsousedastheexternaltriggerinput pininsinglepulseoutputmodefortheSTMandPTMnrespectively. TheotherxTMninputpin,STPIorPTPnI,isthecaptureinputwhoseactiveedgecanbearising edge,afallingedgeorbothrisingandfallingedgesandtheactiveedgetransitiontypeisselected usingtheSTIO1~STIO0orPTnIO1~PTnIO0bitsintheSTMC1orPTMnC1registerrespectively. Thereisanothercaptureinput,PTCKn,forPTMncaptureinputmode,whichcanbeusedasthe externaltriggerinputsourceexceptthePTPnIpin. TheSTPonlyhasanoutputpin,STP,whilethePTMnhavetwooutputpins,PTPnandPTPnB. ThexTPnBistheinvertedsignalofthexTPnoutput.TheTMoutputpinscanbeselectedusingthe correspondingpin-sharedfunctionselectionbitsdescribedinthePin-sharedFunctionsection.When theTMisintheCompareMatchOutputMode,thesepinscanbecontrolledbytheTMtoswitchtoa highorlowlevelortotogglewhenacomparematchsituationoccurs.TheexternalxTPnorxTPnB outputpinisalsothepinwheretheTMgeneratesthePWMoutputwaveform.AstheTMoutput pinsarepin-sharedwithotherfunctions,theTMoutputfunctionmustfirstbesetupusingrelevant pin-sharedfunctionselectionregister. STM PTM Input Output Input Output STCK� STPI STP PTCK0� PTP0I PTCK1�PTP1I PTP0� PTP0B PTP1�PTP1B TM External Pins TM Input/Output Pin Selection SelectingtohaveaTMinput/outputorwhethertoretainitsothersharedfunctionisimplemented usingtherelevantpin-sharedfunctionselectionregisters,withthecorrespondingselectionbitsin eachpin-sharedfunctionregistercorrespondingtoaTMinput/outputpin.Configuringtheselection bitscorrectlywillsetupthecorrespondingpinasaTMinput/output.Thedetailsofthepin-shared functionselectionaredescribedinthepin-sharedfunctionsection. STM STCK STP STPI CCR �aptu�e input CCR output STM Function Pin Control Block Diagram |
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