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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT45F77 датащи(PDF) 90 Page - Holtek Semiconductor Inc |
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HT45F77 датащи(HTML) 90 Page - Holtek Semiconductor Inc |
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90 / 203 page  Rev. 1.20 90 De�e��e� 1�� 201� Rev. 1.20 91 De�e��e� 1�� 201� HT45F77 Body Fat Scale Flash MCU HT45F77 Body Fat Scale Flash MCU Bit3 TnON:TMnCounterOn/OffControl 0:Off 1:On Thisbitcontrolstheoverallon/offfunctionoftheTM.Settingthebithighenablesthe countertorun,clearingthebitdisablestheTM.Clearingthisbittozerowillstopthe counterfromcountingandturnofftheTMwhichwillreduceitspowerconsumption. Whenthebitchangesstatefromlowtohightheinternalcountervaluewillberesetto zero,howeverwhenthebitchangesfromhightolow,theinternalcounterwillretain itsresidualvalueuntilthebitreturnshighagain. IftheTMisintheCompareMatchOutputModethentheTMoutputpinwillbereset toitsinitialcondition,asspecifiedbytheTMOutputcontrolbit,whenthebitchanges fromlowtohigh. Bit2~0 Unimplemented,readas"0" PTMnC1 Register (n=1 or 2) Bit 7 6 5 4 3 2 1 0 Na�e TnM1 TnM0 TnIO1 TnIO0 TnOC TnPOL TnCAPTS TnCCLR 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 TnM1~TnM0:SelectTMnOperationMode 00:CompareMatchOutputMode 01:CaptureInputMode 10:PWMModeorSinglePulseOutputMode 11:Timer/CounterMode ThesebitssetuptherequiredoperatingmodefortheTM.Toensurereliableoperation theTMshouldbeswitchedoffbeforeanychangesaremadetotheTnM1andTnM0 bits.IntheTimer/CounterMode,theTMoutputpincontrolmustbedisabled. Bit5~4 TnIO1~TnIO0:SelectTPn_0,TPn_1outputfunction CompareMatchOutputMode 00:Nochange 01:Outputlow 10:Outputhigh 11:Toggleoutput PWMMode/SinglePulseOutputMode 00:PWMOutputinactivestate 01:PWMOutputactivestate 10:PWMoutput 11:Singlepulseoutput CaptureInputMode 00:InputcaptureatrisingedgeofTPn_0,TPn_1,TCKn 01:InputcaptureatfallingedgeofTPn_0,TPn_1,TCKn 10:Inputcaptureatfalling/risingedgeofTPn_0,TPn_1,TCKn 11:Inputcapturedisabled Timer/counterMode Unused ThesetwobitsareusedtodeterminehowtheTMoutputpinchangesstatewhena certainconditionisreached.Thefunctionthatthesebitsselectdependsuponinwhich modetheTMisrunning. IntheCompareMatchOutputMode,theTnIO1andTnIO0bitsdeterminehowthe TMoutputpinchangesstatewhenacomparematchoccursfromtheComparatorA. TheTMoutputpincanbesetuptoswitchhigh,switchlowortotoggleitspresentstate whenacomparematchoccursfromtheComparatorA.Whenthesebitsarebothzero, thennochangewilltakeplaceontheoutput.TheinitialvalueoftheTMoutputpin shouldbesetupusingtheTnOCbit.NotethattheoutputlevelrequestedbytheTnIO1 |
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