HT66F20 datasheet(128/298 Pages) HOLTEK

128 / 298 page

Rev. 1.90

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Rev. 1.90

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HT66F20/HT66F30/HT66F40/HT66F50/HT66F60

HT66FU30/HT66FU40/HT66FU50/HT66FU60

Enhanced A/D Flash Type 8-Bit MCU with EEPROM

HT66F20/HT66F30/HT66F40/HT66F50/HT66F60

HT66FU30/HT66FU40/HT66FU50/HT66FU60

Enhanced A/D Flash Type 8-Bit MCU with EEPROM

Bit3

T1OC:TP1_0,TP1_1Outputcontrolbit

CompareMatchOutputMode

0:Initiallow

1:Initialhigh

PWMMode/SinglePulseOutputMode

0:Activelow

1:Activehigh

ThisistheoutputcontrolbitfortheTMoutputpin.Itsoperationdependsupon

whetherTMisbeingusedintheCompareMatchOutputModeorinthePWMMode/

SinglePulseOutputMode.IthasnoeffectiftheTMisintheTimer/CounterMode.In

theCompareMatchOutputModeitdeterminesthelogicleveloftheTMoutputpin

beforeacomparematchoccurs.InthePWMModeitdeterminesifthePWMsignalis

activehighoractivelow.

Bit2

T1POL:TP1_0,TP1_1OutputpolarityControl

0:Non-invert

1:Invert

ThisbitcontrolsthepolarityoftheTP1_0orTP1_1outputpin.Whenthebitisset

hightheTMoutputpinwillbeinvertedandnotinvertedwhenthebitiszero.Ithasno

effectiftheTMisintheTimer/CounterMode.

Bit1

T1DPX:TM1PWMperiod/dutyControl

0:CCRP-period;CCRA-duty

1:CCRP-duty;CCRA-period

Thisbit,determineswhichoftheCCRAandCCRPregistersareusedforperiodand

dutycontrolofthePWMwaveform.

Bit0

T1CCLR:SelectTM1Counterclearcondition

0:TM1ComparatrorPmatch

1:TM1ComparatrorAmatch

Thisbitisusedtoselectthemethodwhichclearsthecounter.Rememberthatthe

StandardTMcontainstwocomparators,ComparatorAandComparatorP,eitherof

whichcanbeselectedtocleartheinternalcounter.WiththeT1CCLRbitsethigh,

thecounterwillbeclearedwhenacomparematchoccursfromtheComparatorA.

Whenthebitislow,thecounterwillbeclearedwhenacomparematchoccursfrom

theComparatorPorwithacounteroverflow.Acounteroverflowclearingmethodcan

onlybeimplementediftheCCRPbitsareallclearedtozero.TheT1CCLRbitisnot

usedinthePWM,SinglePulseorInputCaptureMode.

HT66F20 Datasheet(PDF) 128 Page - Holtek Semiconductor Inc

HT66F20 Datasheet(HTML) 128 Page - Holtek Semiconductor Inc

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