HT69F360 datasheet(110/235 Pages) HOLTEK

110 / 235 page

Rev. 1.30

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Rev. 1.30

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HT69F340/HT69F350/HT69F360

TinyPowerTM I/O Flash MCU with LCD & EEPROM

HT69F340/HT69F350/HT69F360

TinyPowerTM I/O Flash MCU with LCD & EEPROM

IntheCompareMatchOutputMode,theCTIO1~CTIO0bitsdeterminehowtheTM

outputpinchangesstatewhenacomparematchoccursfromtheComparatorA.The

TMoutputpincanbesetuptoswitchhigh,switchlowortotoggleitspresentstate

whenacomparematchoccursfromtheComparatorA.WhentheCTIO1~CTIO0bits

arebothzero,thennochangewilltakeplaceontheoutput.TheinitialvalueoftheTM

outputpinshouldbesetupusingtheCTOCbit.Notethattheoutputlevelrequestedby

theCTIO1~CTIO0bitsmustbedifferentfromtheinitialvaluesetupusingtheCTOC

bitotherwisenochangewilloccurontheTMoutputpinwhenacomparematch

occurs.AftertheTMoutputpinchangesstateitcanberesettoitsinitiallevelby

changingtheleveloftheCTONbitfromlowtohigh.

InthePWMMode,theCTIO1andCTIO0bitsdeterminehowtheTMoutputpin

changesstatewhenacertaincomparematchconditionoccurs.ThePWMoutput

functionismodifiedbychangingthesetwobits.Itisnecessarytochangethevalues

oftheCTIO1andCTIO0bitsonlyaftertheTMhasbeenswitchedoff.Unpredictable

PWMoutputswilloccuriftheCTIO1andCTIO0bitsarechangedwhentheTMis

running.

Bit3

CTOC:CTMOutputcontrolbit

CompareMatchOutputMode

0:Initiallow

1:Initialhigh

PWMMode

0:Activelow

1:Activehigh

ThisistheoutputcontrolbitfortheTMoutputpin.Itsoperationdependsupon

whetherTMisbeingusedintheCompareMatchOutputModeorinthePWMMode.

IthasnoeffectiftheTMisintheTimer/CounterMode.IntheCompareMatchOutput

ModeitdeterminesthelogicleveloftheTMoutputpinbeforeacomparematch

occurs.InthePWMModeitdeterminesifthePWMsignalisactivehighoractive

low.

Bit2

CTPOL:CTMOutputpolarityControl

0:Non-invert

1:Invert

ThisbitcontrolsthepolarityoftheTMoutputpins.WhenthebitissethightheTM

outputpinswillbeinvertedandnotinvertedwhenthebitiszero.Ithasnoeffectifthe

TMisintheTimer/CounterMode.

Bit1

CTDPX:CTMPWMperiod/dutyControl

0:CCRP-period;CCRA-duty

1:CCRP-duty;CCRA-period

Thisbit,determineswhichoftheCCRAandCCRPregistersareusedforperiodand

dutycontrolofthePWMwaveform.

Bit0

CTCCLR:SelectCTMCounterclearcondition

0:CTMComparatrorPmatch

1:CTMComparatrorAmatch

Thisbitisusedtoselectthemethodwhichclearsthecounter.Rememberthatthe

CompactTMcontainstwocomparators,ComparatorAandComparatorP,eitherof

whichcanbeselectedtocleartheinternalcounter.WiththeCTCCLRbitsethigh,

thecounterwillbeclearedwhenacomparematchoccursfromtheComparatorA.

Whenthebitislow,thecounterwillbeclearedwhenacomparematchoccursfrom

theComparatorPorwithacounteroverflow.Acounteroverflowclearingmethodcan

onlybeimplementediftheCCRPbitsareallclearedtozero.TheCTCCLRbitisnot

usedinthePWMMode.

HT69F360 датащи(PDF) 110 Page - Holtek Semiconductor Inc

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