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HT66F20 Datasheet(PDF) 102 Page - Holtek Semiconductor Inc |
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HT66F20 Datasheet(HTML) 102 Page - Holtek Semiconductor Inc |
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102 / 298 page  Rev. 1.90 10� �e���a�� 18� �01� Rev. 1.90 10� �e���a�� 18� �01� 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 TM External Pins EachoftheTMs,irrespectiveofwhattype,hasoneTMinputpin,withthelabelTCKn.TheTM inputpin,isessentiallyaclocksourcefortheTMandisselectedusingtheTnCK2~TnCK0bitsin theTMnC0register.ThisexternalTMinputpinallowsanexternalclocksourcetodrivetheinternal TM.ThisexternalTMinputpinissharedwithotherfunctionsbutwillbeconnectedtotheinternal TMifselectedusingtheTnCK2~TnCK0bits.TheTMinputpincanbechosentohaveeithera risingorfallingactiveedge. TheTMseachhaveoneormoreoutputpinswiththelabelTPn.WhentheTMisintheCompare MatchOutputMode,thesepinscanbecontrolledbytheTMtoswitchtoahighorlowlevelor totogglewhenacomparematchsituationoccurs.TheexternalTPnoutputpinisalsothepin wheretheTMgeneratesthePWMoutputwaveform.AstheTMoutputpinsarepin-sharedwith otherfunction,theTMoutputfunctionmustfirstbesetupusingregisters.Asinglebitinoneofthe registersdeterminesifitsassociatedpinistobeusedasanexternalTMoutputpinorifitistohave anotherfunction.ThenumberofoutputpinsforeachTMtypeanddeviceisdifferent,thedetailsare providedintheaccompanyingtable. AllTMoutputpinnameshavean"_n"suffix.Pinnamesthatincludea"_1"or"_2"suffixindicate thattheyarefromaTMwithmultipleoutputpins.ThisallowstheTMtogenerateacomplimentary outputpair,selectedusingtheI/Oregisterdatabits. Device CTM STM ETM Registers HT66��0 TP0_0 TP1_0� TP1_1 — TMPC0 HT66��0 TP0_0� TP0_1 — TP1A� TP1B_0� TP1B_1 TMPC0 HT66�40 TP0_0� TP0_1 TP�_0� TP�_1 TP1A� TP1B_0� TP1B_1� TP1B_� TMPC0� TMPC1 HT66�50 TP0_0� TP0_1 TP�_0� TP�_1 TP�_0� TP�_1 TP1A� TP1B_0� TP1B_1� TP1B_� TMPC0� TMPC1 HT66�60 TP0_0� TP0_1 TP�_0� TP�_1 TP�_0� TP�_1 TP1A� TP1B_0� TP1B_1� TP1B_� TMPC0� TMPC1 TM Output Pins |
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