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HT45F2020 датащи(PDF) 52 Page - Holtek Semiconductor Inc |
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HT45F2020 датащи(HTML) 52 Page - Holtek Semiconductor Inc |
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52 / 85 page ![]() Rev. 1.00 52 April 11, 2017 Rev. 1.00 53 April 11, 2017 HT45F2020/HT45F2022 Sound Effect Generator Flash MCU HT45F2020/HT45F2022 Sound Effect Generator Flash MCU Counter Value 0x3FF CCRP CCRA PTON PTPAU PTPOL CCRP Int. Flag PTMPF CCRA Int. Flag PTMAF PTM O/P Pin Time CCRA=0 CCRA = 0 Counter overflow CCRA > 0 Counter cleared by CCRA value Pause Resume Stop Counter Restart PTCCLR = 1; PTM [1:0] = 00 Output pin set to initial Level Low if PTOC=0 Output Toggle with PTMAF flag Note PTIO [1:0] = 10 Active High Output select Here PTIO [1:0] = 11 Toggle Output select Output not affected by PTMAF flag. Remains High until reset by PTON bit Output Pin Reset to Initial value Output controlled by other pin-shared function Output Inverts when PTPOL is high PTMPF not generated No PTMAF flag generated on CCRA overflow Output does not change Compare Match Output Mode – PTCCLR=1 Note:1.WithPTCCLR=1,aComparatorAmatchwillclearthecounter 2.ThePTMoutputpiniscontrolledonlybythePTMAFflag 3.TheoutputpinisresettoitsinitialstatebyaPTONbitrisingedge 4.APTMPFflagisnotgeneratedwhenPTCCLR=1 |
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