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HT66F019 Datasheet(PDF) 89 Page - Holtek Semiconductor Inc |
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HT66F019 Datasheet(HTML) 89 Page - Holtek Semiconductor Inc |
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89 / 175 page  Rev. 1.00 88 De�e��e� 01� �01� Rev. 1.00 89 De�e��e� 01� �01� HT66F019 A/D Flash MCU with EEPROM HT66F019 A/D Flash MCU with EEPROM Periodic Type TM – PTM ThePeriodicTypeTMcontainsfiveoperatingmodes,whichareCompareMatchOutput,Timer/ EventCounter,CaptureInput,SinglePulseOutputandPWMOutputmodes.ThePeriodicTMcan alsobecontrolledwithtwoexternalinputpinandcandriveanexternaloutputpin. PTM Core PTM Input Pin PTM Output Pin 10-�it PTM PTCK� PTP PTP fSYS fSYS/4 fH/64 fH/16 fSUB PTCK 000 001 010 011 100 101 110 111 PTCK�~PTCK0 10-�it Count-up Counte� 10-�it Co�pa�ato� P CCRP �0~�9 �0~�9 10-�it Co�pa�ato� A PTON PTPAU Co�pa�ato� A Mat�h Co�pa�ato� P Mat�h Counte� Clea� 0 1 Output Cont�ol Pola�ity Cont�ol PTP Pin Input/Output PTP PTOC PTM1� PTM0 PTIO1� PTIO0 PTMAF Inte��upt PTMPF Inte��upt PTPOL CCRA PTCCLR Edge Dete�to� PTIO1� PTIO0 fSUB 1 0 PTCAPTS Periodic Type TM Block Diagram Periodic Type TM Operation ThesizeofPeriodicTMis10-bitwideanditscoreisa10-bitcount-upcounterwhichisdrivenby auserselectableinternalorexternalclocksource.Therearealsotwointernalcomparatorswiththe names,ComparatorAandComparatorP.Thesecomparatorswillcomparethevalueinthecounter withCCRPandCCRAregisters.TheCCRPandCCRAcomparatorsare10-bitwidewhosevalueis comparedwithallcounterbits. Theonlywayofchangingthevalueofthe10-bitcounterusingtheapplicationprogramisto clearthecounterbychangingthePTONbitfromlowtohigh.Thecounterwillalsobecleared automaticallybyacounteroverfloworacomparematchwithoneofitsassociatedcomparators. Whentheseconditionsoccur,aPTMinterruptsignalwillalsousuallybegenerated.ThePeriodic TypeTMcanoperateinanumberofdifferentoperationalmodes,canbedrivenbydifferentclock sourcesincludinganinputpinandcanalsocontroltwooutputpins.Alloperatingsetupconditions areselectedusingrelevantinternalregisters. Periodic Type TM Register Description OveralloperationofthePeriodicTMiscontrolledusingaseriesofregisters.Areadonlyregister pairexiststostoretheinternalcounter10-bitvalue,whiletworead/writeregisterpairsexisttostore theinternal10-bitCCRAandCCRPvalue.Theremainingtworegistersarecontrolregisterswhich setupthedifferentoperatingandcontrolmodes. |
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