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Rev. 1.50 106 August 28, 2017 Rev. 1.50 107 August 28, 2017

HT66F0175/HT66F0185

A/D Flash MCU with EEPROM

HT66F0175/HT66F0185

A/D Flash MCU with EEPROM

Bit3 TnOC:TMnTPnOutputcontrol

CompareMatchOutputMode

0:Initiallow

1:Initialhigh

PWMOutputMode/SinglePulseOutputMode

0:Activelow

1:Activehigh

ThisistheoutputcontrolbitfortheTMnoutputpin.Itsoperationdependsupon

whetherTMnisbeingusedintheCompareMatchOutputModeorinthePWMMode/

SinglePulseOutputMode.IthasnoeffectiftheTMnisintheTimer/CounterMode.

IntheCompareMatchOutputModeitdeterminesthelogicleveloftheTMnoutput

pinbeforeacomparematchoccurs.InthePWMMode/SinglePulseOutputModeit

determinesifthePWMsignalisactivehighoractivelow.

Bit2 TnPOL:TMnTPnOutputpolaritycontrol

0:Non-inverted

1:Inverted

ThisbitcontrolsthepolarityoftheTPnoutputpin.WhenthebitissethightheTMn

outputpinwillbeinvertedandnotinvertedwhenthebitiszero.Ithasnoeffectifthe

TMnisintheTimer/CounterMode.

Bit1 TnCAPTS:TMnCaptureTriggerSourceselection

0:FromTPnpin

1:FromTCKnpin

Bit0 TnCCLR:TMnCounterClearconditionselection

0:ComparatorPmatch

1:ComparatorAmatch

Thisbitisusedtoselectthemethodwhichclearsthecounter.Rememberthatthe

PeriodicTMcontainstwocomparators,ComparatorAandComparatorP,eitherof

whichcanbeselectedtocleartheinternalcounter.WiththeTnCCLRbitsethigh,

thecounterwillbeclearedwhenacomparematchoccursfromtheComparatorA.

Whenthebitislow,thecounterwillbeclearedwhenacomparematchoccursfrom

theComparatorPorwithacounteroverow.Acounteroverowclearingmethodcan

onlybeimplementediftheCCRPbitsareallclearedtozero.TheTnCCLRbitisnot

usedinthePWMOutput,SinglePulseOutputorCaptureInputMode.

Holtek HT66F0175 User Manual

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