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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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HT69F360 데이터시트(PDF) 112 Page - Holtek Semiconductor Inc |
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HT69F360 데이터시트(HTML) 112 Page - Holtek Semiconductor Inc |
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112 / 235 page  Rev. 1.30 11� �ove��e� 1�� �01� Rev. 1.30 113 �ove��e� 1�� �01� HT69F340/HT69F350/HT69F360 TinyPowerTM I/O Flash MCU with LCD & EEPROM HT69F340/HT69F350/HT69F360 TinyPowerTM I/O Flash MCU with LCD & EEPROM Compact Type TM Operating Modes TheCompactTypeTMcanoperateinoneofthreeoperatingmodes,CompareMatchOutputMode, PWMOutputModeorTimer/CounterMode.TheoperatingmodeisselectedusingtheCTM1and CTM0bitsintheCTMC1register. Compare Match Output Mode Toselectthismode,bitsCTM1andCTM0intheCTMC1register,shouldbesetto00respectively. Inthismodeoncethecounterisenabledandrunningitcanbeclearedbythreemethods.Theseare acounteroverflow,acomparematchfromComparatorAandacomparematchfromComparatorP. WhentheCTCCLRbitislow,therearetwowaysinwhichthecountercanbecleared.Oneiswhen acomparematchfromComparatorP,theotheriswhentheCCRPbitsareallzerowhichallowsthe countertooverflow.HerebothCTMAFandCTMPFinterruptrequestflagsforComparatorAand ComparatorPrespectively,willbothbegenerated. IftheCTCCLRbitintheCTMC1registerishighthenthecounterwillbeclearedwhenacompare matchoccursfromComparatorA.However,hereonlytheCTMAFinterruptrequestflagwillbe generatedevenifthevalueoftheCCRPbitsislessthanthatoftheCCRAregisters.Thereforewhen CTCCLRishighnoCTMPFinterruptrequestflagwillbegenerated.IftheCCRAbitsareallzero, thecounterwilloverflowwhenitsreachesitsmaximum10-bit,3FFHex,value,howeverherethe CTMAFinterruptrequestflagwillnotbegenerated. Asthenameofthemodesuggests,afteracomparisonismade,theTMoutputpin,willchange state.TheTMoutputpinconditionhoweveronlychangesstatewhenaCTMAFinterruptrequest flagisgeneratedafteracomparematchoccursfromComparatorA.TheCTMPFinterruptrequest flag,generatedfromacomparematchoccursfromComparatorP,willhavenoeffectontheTM outputpin.ThewayinwhichtheTMoutputpinchangesstatearedeterminedbytheconditionof theCTIO1andCTIO0bitsintheCTMC1register.TheTMoutputpincanbeselectedusingthe CTIO1andCTIO0bitstogohigh,togolowortotogglefromitspresentconditionwhenacompare matchoccursfromComparatorA.TheinitialconditionoftheTMoutputpin,whichissetupafter theCTONbitchangesfromlowtohigh,issetupusingtheCTOCbit.NotethatiftheCTIO1and CTIO0bitsarezerothennopinchangewilltakeplace. |
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