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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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HT45FM2C 데이터시트(PDF) 67 Page - Holtek Semiconductor Inc |
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HT45FM2C 데이터시트(HTML) 67 Page - Holtek Semiconductor Inc |
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67 / 171 page  Rev. 1.10 66 �a� �0� �01� Rev. 1.10 67 �a� �0� �01� HT45FM2C Brushless DC Motor Flash Type 8-Bit MCU HT45FM2C Brushless DC Motor Flash Type 8-Bit MCU Preliminar� counterwillretainitsresidualvalue.IftheTMnisintheCompareMatchOutput ModethentheTMnoutputpinwillberesettoitsinitialcondition,asspecifiedbythe TnOCbit,whentheTnONbitchangesfromlowtohigh. Bit 2~0 TnRP2~TnRP0: TMnCCRP3-bitregister,comparedwiththeTMnCounterbit9~bit7 ComparatorPMatchPeriod 000:1024TMnclocks 001:128TMnclocks 010:256TMnclocks 011:384TMnclocks 100:512TMnclocks 101:640TMnclocks 110:768TMnclocks 111:896TMnclocks ThesethreebitsareusedtosetupthevalueontheinternalCCRP3-bitregister,which arethencomparedwiththeinternalcounter’shighestthreebits.Theresultofthis comparisoncanbeselectedtocleartheinternalcounteriftheTnCCLRbitissetto zero.SettingtheTnCCLRbittozeroensuresthatacomparematchwiththeCCRP valueswillresettheinternalcounter.AstheCCRPbitsareonlycomparedwiththe highestthreecounterbits,thecomparevaluesexistin128clockcyclemultiples. Clearingallthreebitstozeroisineffectallowingthecountertooverflowatits maximumvalue. TMnC1 Register(n=0, 1, 2, 3) — 10-bit CTM Bit 7 6 5 4 3 2 1 0 Name Tn�1 Tn�0 TnIO1 TnIO0 TnOC TnPOL TnDPX 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 Bit 7~6 TnM1~TnM0: SelectTMnOperatingMode 00:CompareMatchOutputMode 01:Undefined 10:PWMMode 11:Timer/CounterMode ThesebitssetuptherequiredoperatingmodefortheTM.Toensurereliableoperation theTMshouldbeswitchedoffbeforeanychangesaremadetotheTnM1andTnM0 bits.IntheTimer/CounterMode,theTMoutputpincontrolmustbedisabled. Bit 5~4 TnIO1~TnIO0: SelectTPn_0,TPn_1outputfunction CompareMatchOutputMode 00:Nochange 01:Outputlow 10:Outputhigh 11:Toggleoutput PWMMode 00:PWMOutputinactivestate 01:PWMOutputactivestate 10:PWMoutput 11:Undefined Timer/counterMode unused |
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