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HT69F360 датащи(PDF) 129 Page - Holtek Semiconductor Inc |
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HT69F360 датащи(HTML) 129 Page - Holtek Semiconductor Inc |
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129 / 235 page ![]() Rev. 1.30 1�� �ove��e� 1�� �01� Rev. 1.30 1�9 �ove��e� 1�� �01� HT69F340/HT69F350/HT69F360 TinyPowerTM I/O Flash MCU with LCD & EEPROM HT69F340/HT69F350/HT69F360 TinyPowerTM I/O Flash MCU with LCD & EEPROM Single Pulse Mode Toselectthismode,bitsSTM1andSTM0intheSTMC1registershouldbesetto10respectively andalsotheSTIO1andSTIO0bitsshouldbesetto11respectively.TheSinglePulseOutputMode, asthenamesuggests,willgenerateasingleshotpulseontheTMoutputpin. ThetriggerforthepulseoutputleadingedgeisalowtohightransitionoftheSTONbit,whichcan beimplementedusingtheapplicationprogram.HoweverintheSinglePulseMode,theSTONbit canalsobemadetoautomaticallychangefromlowtohighusingtheexternalSTCKpin,whichwill inturninitiatetheSinglePulseoutput. WhentheSTONbittransitionstoahighlevel,thecounterwillstartrunningandthepulseleading edgewillbegenerated.TheSTONbitshouldremainhighwhenthepulseisinitsactivestate.The generatedpulsetrailingedgewillbegeneratedwhentheSTONbitisclearedtozero,whichcanbe implementedusingtheapplicationprogramorwhenacomparematchoccursfromComparatorA. STON bit 0 → 1 S/W Command SET“STON” or STCK Pin Transition STON bit 1 → 0 Trailing Edge S/W Command CLR“STON” or CCRA Match Compare STM Output Pin Pulse Width = CCRA Value Leading Edge Single Pulse Generation |
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