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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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HT45F5R Datasheet(PDF) 66 Page - Holtek Semiconductor Inc |
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HT45F5R Datasheet(HTML) 66 Page - Holtek Semiconductor Inc |
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66 / 138 page  Rev. 1.10 �� De�e��e� 1�� �01� Rev. 1.10 �7 De�e��e� 1�� �01� HT45F5R Charger ASSP Flash MCU HT45F5R Charger ASSP Flash MCU STMC1 Register Bit 7 6 5 4 3 2 1 0 Na�e STM1 STM0 STIO1 STIO0 STOC STPOL STDPX STCCLR R/W R/W R/W R/W R/W R/W R/W R/W R/W POR 0 0 0 0 0 0 0 0 Bit7~6 STM1~STM0:SelectSTMoperatingmode 00:Comparematchoutputmode 01:Captureinputmode 10:PWMoutputmodeorsinglepulseoutputmode 11:Timer/Countermode ThesebitssetuptherequiredoperatingmodefortheSTM.Toensurereliableoperation theSTMshouldbeswitchedoffbeforeanychangesaremadetotheSTM1andSTM0 bits.IntheTimer/CounterMode,theSTMoutputpinstateisundefined. Bit5~4 STIO1~STIO0:SelectSTMfunction Comparematchoutputmode 00:Nochange 01:Outputlow 10:Outputhigh 11:Toggleoutput PWMoutputmode/singlepulseoutputmode 00:PWMoutputinactivestate 01:PWMoutputactivestate 10:PWMoutput 11:Singlepulseoutput Captureinputmode 00:InputcaptureatrisingedgeofSTPI 01:InputcaptureatfallingedgeofSTPI 10:Inputcaptureatfalling/risingedgeofSTPI 11:Inputcapturedisabled Timer/Countermode Unused ThesetwobitsareusedtodeterminehowtheTMoutputpinchangesstatewhena certainconditionisreached.Thefunctionthatthesebitsselectdependsuponinwhich modetheTMisrunning. IntheCompareMatchOutputMode,theSTIO1~STIO0bitsdeterminehowtheTM outputpinchangesstatewhenacomparematchoccursfromtheComparatorA.The TMoutputpincanbesetuptoswitchhigh,switchlowortotoggleitspresentstate whenacomparematchoccursfromtheComparatorA.WhentheSTIO1~STIO0bits arebothzero,thennochangewilltakeplaceontheoutput.TheinitialvalueoftheTM outputpinshouldbesetupusingtheSTOCbit.Notethattheoutputlevelrequestedby theSTIO1~STIO0bitsmustbedifferentfromtheinitialvaluesetupusingtheSTOC bitotherwisenochangewilloccurontheTMoutputpinwhenacomparematch occurs.AftertheTMoutputpinchangesstate,itcanberesettoitsinitiallevelby changingtheleveloftheSTONbitfromlowtohigh. InthePWMMode,theSTIO1andSTIO0bitsdeterminehowtheTMoutputpin changesstatewhenacertaincomparematchconditionoccurs.ThePWMoutput functionismodifiedbychangingthesetwobits.Itisnecessarytochangethevalues oftheSTIO1andSTIO0bitsonlyaftertheTMhasbeenswitchedoff.Unpredictable PWMoutputswilloccuriftheSTIO1andSTIO0bitsarechangedwhentheTMis running. |
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