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HT45F65 Datasheet(PDF) 121 Page - Holtek Semiconductor Inc |
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HT45F65 Datasheet(HTML) 121 Page - Holtek Semiconductor Inc |
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121 / 231 page  Rev. 1.60 1�0 �ove��e� ��� �01� Rev. 1.60 1�1 �ove��e� ��� �01� HT45F65/HT45F66/HT45F67 Glucose Meter 8-Bit Flash MCU Whenthebitchangesstatefromlowtohightheinternalcountervaluewillbereset tozero,howeverwhenthebitchangesfromhightolow,theinternalcounterwill retainitsresidualvalue.IftheTMisintheCompareMatchOutputModethentheTM outputpinwillberesettoitsinitialcondition,asspecifiedbytheT1OCbit,whenthe T1ONbitchangesfromlowtohigh. Bit2~0 T1RP2~T1RP0:TM1CCRP3-bitregister,comparedwiththeTM1Counterbit9~bit7 ComparatorPMatchPeriod 000:1024TM1clocks 001:128TM1clocks 010:256TM1clocks 011:384TM1clocks 100:512TM1clocks 101:640TM1clocks 110:768TM1clocks 111:896TM1clocks ThesethreebitsareusedtosetupthevalueontheinternalCCRP3-bitregister,which arethencomparedwiththeinternalcounter'shighestthreebits.Theresultofthis comparisoncanbeselectedtocleartheinternalcounteriftheT1CCLRbitissetto zero.SettingtheT1CCLRbittozeroensuresthatacomparematchwiththeCCRP valueswillresettheinternalcounter.AstheCCRPbitsareonlycomparedwiththe highestthreecounterbits,thecomparevaluesexistin128clockcyclemultiples. Clearingallthreebitstozeroisineffectallowingthecountertooverflowatits maximumvalue. TM1C1 Register Bit 7 6 5 4 3 2 1 0 �a�e T1AM1 T1AM0 T1AIO1 T1AIO0 T1AOC T1APOL T1CD� T1CCLR R/W R/W R/W R/W R/W R/W R/W R R/W POR 0 0 0 0 0 0 0 0 Bit7~6 T1AM1, T1AM0:SelectTM1CCRAOperatingMode 00:CompareMatchOutputMode 01:CaptureInputMode 10:PWMModeorSinglePulseOutputMode 11:Timer/CounterMode ThesebitssetuptherequiredoperatingmodefortheTM.Toensurereliableoperation theTMshouldbeswitchedoffbeforeanychangesaremadetotheT1AM1and T1AM0bits.IntheTimer/CounterMode,theTMoutputpincontrolmustbedisabled. Bit5~4 T1AIO1, T1AIO0:SelectTP1Aoutputfunction CompareMatchOutputMode 00:Nochange 01:Outputlow 10:Outputhigh 11:Toggleoutput PWMMode/SinglePulseOutputMode 00:PWMOutputinactivestate 01:PWMOutputactivestate 10:PWMoutput 11:Singlepulseoutput CaptureInputMode 00:InputcaptureatrisingedgeofTP1A 01:InputcaptureatfallingedgeofTP1A 10:Inputcaptureatfalling/risingedgeofTP1A 11:Inputcapturedisabled Timer/CounterMode Unused |
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