HT66F4530 datasheet(89/224 Pages) HOLTEK

89 / 224 page

Rev. 1.00

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Rev. 1.00

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HT66F4530/HT66F4540/HT66F4550

A/D Flash MCU with Dual Operational Amplifiers

HT66F4530/HT66F4540/HT66F4550

A/D Flash MCU with Dual Operational Amplifiers

TM Clock Source

TheclocksourcewhichdrivesthemaincounterineachTMcanoriginatefromvarioussources.

TheselectionoftherequiredclocksourceisimplementedusingthexTnCK2~xTnCK0bitsinthe

xTMncontrolregisters,where"x"standsforSorPtypeTMand"n"standsforthespecificTM

serialnumber.TheclocksourcecanbearatioofthesystemclockfSYSortheinternalhighclockfH,

thefSUBclocksourceortheexternalxTCKnpin.ThexTCKnpinclocksourceisusedtoallowan

externalsignaltodrivetheTMasanexternalclocksourceorforeventcounting.

TM Interrupts

TheStandardandPeriodictypeTMseachhavetwointernalinterrupts,oneforeachoftheinternal

comparatorAorcomparatorP,whichgenerateaTMinterruptwhenacomparematchcondition

occurs.WhenaTMinterruptisgenerateditcanbeusedtoclearthecounterandalsotochangethe

stateoftheTMoutputpin.

TM External Pins

EachoftheTMs,irrespectiveofwhattype,hasoneortwoTMinputpins,withthelabelxTCKnand

xTPnIrespectively.ThexTMninputpin,xTCKn,isessentiallyaclocksourceforthexTMnandis

selectedusingthexTnCK2~xTnCK0bitsinthexTMnC0register.ThisexternalTMinputpinallows

anexternalclocksourcetodrivetheinternalTM.ThexTCKninputpincanbechosentohaveeither

arisingorfallingactiveedge.ThexTCKnpinisalsousedastheexternaltriggerinputpininsingle

pulseoutputmode.

TheotherxTMninputpin,xTPnI,isthecaptureinputwhoseactiveedgecanbearisingedge,a

fallingedgeorbothrisingandfallingedgesandtheactiveedgetransitiontypeisselectedusingthe

xTnIO1~xTnIO0bitsinthexTMnC1register.Thereisanothercaptureinput,PTCKn,forPTMn

captureinputmode,whichcanbeusedastheexternaltriggerinputsource.

TheTMseachhaveoneoutputpinwiththelabelxTPn.TheTMoutputpinscanbeselectedusing

thecorrespondingpin-sharedfunctionselectionbitsdescribedinthePin-sharedFunctionsection.

WhentheTMisintheCompareMatchOutputMode,thesepinscanbecontrolledbytheTMto

switchtoahighorlowlevelortotogglewhenacomparematchsituationoccurs.TheexternalxTPn

outputpinisalsothepinwheretheTMgeneratesthePWMoutputwaveform.AstheTMoutput

pinsarepin-sharedwithotherfunctions,theTMoutputfunctionmustfirstbesetupusingrelevant

pin-sharedfunctionselectionregister.

Device

STM

PTM

Input

Output

Input

Output

HT��F4530

STP0I

STP0

PTCK0

PTP0

HT��F4540

STCK0� STP0I

STP0

PTCK0� PTCK1

PTP0� PTP1

HT��F4550

STCK0� STP0I;

STCK1� STP1I

STP0� STP1

PTCK0� PTCK1

PTP0� PTP1

TM External Pins

HT66F4530 Datasheet(PDF) 89 Page - Holtek Semiconductor Inc

HT66F4530 Datasheet(HTML) 89 Page - Holtek Semiconductor Inc

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