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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT67F488 датащи(PDF) 70 Page - Holtek Semiconductor Inc |
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HT67F488 датащи(HTML) 70 Page - Holtek Semiconductor Inc |
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70 / 171 page  Rev. 1.60 70 �ove��e� ��� �016 HT67F488/HT67F489 TinyPowerTM A/D Flash MCU with LCD & EEPROM Bit3 TnOC:TPn_0,TPn_1Outputcontrolbit CompareMatchOutputMode 0:Initiallow 1:Initialhigh PWMOutputMode/SinglePulseOutputMode 0:Activelow 1:Activehigh ThisistheoutputcontrolbitfortheTMoutputpin.Itsoperationdependsupon whetherTMisbeingusedintheCompareMatchOutputModeorinthePWMOutput Mode/SinglePulseOutputMode.IthasnoeffectiftheTMisintheTimer/Counter Mode.IntheCompareMatchOutputModeitdeterminesthelogicleveloftheTM outputpinbeforeacomparematchoccurs.InthePWMOutputModeitdeterminesif thePWMsignalisactivehighoractivelow. Bit2 TnPOL:TPn_0,TPn_1OutputpolarityControl 0:Non-invert 1:Invert ThisbitcontrolsthepolarityoftheTPn_0,TPn_1outputpin.Whenthebitissethigh theTMoutputpinwillbeinvertedandnotinvertedwhenthebitiszero.Ithasno effectiftheTMisintheTimer/CounterMode. Bit1 TnCAPTS:TMncapturetriggersourceselect 0:FromTPn_0,TPn_1pin 1:FromTCKnpin Bit0 TnCCLR:SelectTMnCounterclearcondition 0:TMnComparatrorPmatch 1:TMnComparatrorAmatch Thisbitisusedtoselectthemethodwhichclearsthecounter.Rememberthatthe PeriodicTMcontainstwocomparators,ComparatorAandComparatorP,eitherof whichcanbeselectedtocleartheinternalcounter.WiththeTnCCLRbitsethigh, thecounterwillbeclearedwhenacomparematchoccursfromtheComparatorA. Whenthebitislow,thecounterwillbeclearedwhenacomparematchoccursfrom theComparatorPorwithacounteroverflow.Acounteroverflowclearingmethodcan onlybeimplementediftheCCRPbitsareallclearedtozero.TheTnCCLRbitisnot usedinthePWM,SinglePulseorInputCaptureMode. TMnDL Register Bit 7 6 5 4 3 2 1 0 �a�e D7 D6 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 TMnDL:TMnCounterLowByteRegisterbit7~bit0 TMn10-bitCounterbit7~bit0 TMnDH Register Bit 7 6 5 4 3 2 1 0 �a�e — — — — — — D9 D8 R/W — — — — — — R R POR — — — — — — 0 0 Bit7~2 Unimplemented,readas“0” Bit1~0 TMnDH:TMnCounterHighByteRegisterbit1~bit0 TMn10-bitCounterbit9~bit8 |
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