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HT45F4MA датащи(PDF) 74 Page - Holtek Semiconductor Inc |
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HT45F4MA датащи(HTML) 74 Page - Holtek Semiconductor Inc |
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74 / 145 page ![]() Rev. 1.20 7� De�e��e� 1�� 201� Rev. 1.20 75 De�e��e� 1�� 201� HT45F4MA/HT45FH4MA/HT45FH4MA-1 Power Bank Flash MCU HT45F4MA/HT45FH4MA/HT45FH4MA-1 Power Bank Flash MCU Single Pulse Mode Toselectthismode,bitsT0M1andT0M0intheTM0C1registershouldbesetto10respectively andalsotheT0IO1andT0IO0bitsshouldbesetto11respectively.TheSinglePulseOutputMode, asthenamesuggests,willgenerateasingleshotpulseontheTMoutputpin. ThetriggerforthepulseoutputleadingedgeisalowtohightransitionoftheT0ONbit,whichcan beimplementedusingtheapplicationprogram.HoweverintheSinglePulseMode,theT0ONbit canalsobemadetoautomaticallychangefromlowtohighusingtheexternalTCK0pin,whichwill inturninitiatetheSinglePulseoutput.WhentheT0ONbittransitionstoahighlevel,thecounter willstartrunningandthepulseleadingedgewillbegenerated.TheT0ONbitshouldremainhigh whenthepulseisinitsactivestate.Thegeneratedpulsetrailingedgewillbegeneratedwhenthe T0ONbitisclearedtozero,whichcanbeimplementedusingtheapplicationprogramorwhena comparematchoccursfromComparatorA. Leadi ng Ed ge Tn ON b it 0 ® 1 S/ W Co mm an d SET " Tn ON " or TC Kn P in T ra ns it io n Tn ON b it 1 ® 0 S/ W Co mm an d CL R "T nO N" or CCR A Ma tc h C om pa re Pu ls e Wi dt h = CCRA V al ue Tr a ili ng E dge TM n Ou tp ut P in Single Pulse Generation (n= 0) |
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