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HT45F3W Datasheet(PDF) 83 Page - Holtek Semiconductor Inc |
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HT45F3W Datasheet(HTML) 83 Page - Holtek Semiconductor Inc |
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83 / 167 page  Rev. 1.50 8� De�e��e� 01� �01� Rev. 1.50 83 De�e��e� 01� �01� HT45F3W R-Type Blood Pressure Meter Flash MCU HT45F3W R-Type Blood Pressure Meter Flash MCU Bit3 TnOC:TPn_0,TPn_1Outputcontrolbit CompareMatchOutputMode 0:Initiallow 1:Initialhigh PWMMode 0:Activelow 1:Activehigh ThisistheoutputcontrolbitfortheTMoutputpin.Itsoperationdependsupon whetherTMisbeingusedintheCompareMatchOutputModeorinthePWMMode. IthasnoeffectiftheTMisintheTimer/CounterMode.IntheCompareMatchOutput ModeitdeterminesthelogicleveloftheTMoutputpinbeforeacomparematch occurs.InthePWMModeitdeterminesifthePWMsignalisactivehighoractive low. Bit2 TnPOL:TPn_0,TPn_1OutputpolarityControl 0:Non-invert 1:Invert ThisbitcontrolsthepolarityoftheTPn_0orTPn_1outputpin.Whenthebitisset hightheTMoutputpinwillbeinvertedandnotinvertedwhenthebitiszero.Ithasno effectiftheTMisintheTimer/CounterMode. Bit1 TnDPX:TMnPWMperiod/dutyControl 0:CCRP-period;CCRA-duty 1:CCRP-duty;CCRA-period Thisbit,determineswhichoftheCCRAandCCRPregistersareusedforperiodand dutycontrolofthePWMwaveform. Bit0 TnCCLR:SelectTMnCounterclearcondition 0:TMnComparatrorPmatch 1:TMnComparatrorAmatch Thisbitisusedtoselectthemethodwhichclearsthecounter.Rememberthatthe CompactTMcontainstwocomparators,ComparatorAandComparatorP,eitherof whichcanbeselectedtocleartheinternalcounter.WiththeTnCCLRbitsethigh, thecounterwillbeclearedwhenacomparematchoccursfromtheComparatorA. Whenthebitislow,thecounterwillbeclearedwhenacomparematchoccursfrom theComparatorPorwithacounteroverflow.Acounteroverflowclearingmethodcan onlybeimplementediftheCCRPbitsareallclearedtozero.TheTnCCLRbitisnot usedinthePWMMode. TMnDL Register (n=0 or 1) Bit 7 6 5 4 3 2 1 0 Na�e D7 D� D5 D4 D3 D� D1 D0 R/W R R R R R R R R POR 0 0 0 0 0 0 0 0 Bit7~0 D7~D0:TMnCounterLowByteRegisterbit7~bit0 TMn10-bitCounterbit7~bit0 |
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