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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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HT66F4530 데이터시트(PDF) 97 Page - Holtek Semiconductor Inc |
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HT66F4530 데이터시트(HTML) 97 Page - Holtek Semiconductor Inc |
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97 / 224 page  Rev. 1.00 9� De�e��e� �1� �01� Rev. 1.00 97 De�e��e� �1� �01� HT66F4530/HT66F4540/HT66F4550 A/D Flash MCU with Dual Operational Amplifiers HT66F4530/HT66F4540/HT66F4550 A/D Flash MCU with Dual Operational Amplifiers Standard Type TM Operation Modes TheStandardTypeTMcanoperateinoneoffiveoperatingmodes,CompareMatchOutputMode, PWMOutputMode,SinglePulseOutputMode,CaptureInputModeorTimer/CounterMode.The operatingmodeisselectedusingtheSTnM1andSTnM0bitsintheSTMnC1register. Compare Match Output Mode Toselectthismode,bitsSTnM1andSTnM0intheSTMnC1register,shouldbesetto00 respectively.Inthismodeoncethecounterisenabledandrunningitcanbeclearedbythree methods.Theseareacounteroverflow,acomparematchfromComparatorAandacomparematch fromComparatorP.WhentheSTnCCLRbitislow,therearetwowaysinwhichthecountercanbe cleared.OneiswhenacomparematchfromComparatorP,theotheriswhentheCCRPbitsareall zerowhichallowsthecountertooverflow.HerebothSTMnAFandSTMnPFinterruptrequestflags forComparatorAandComparatorPrespectively,willbothbegenerated. IftheSTnCCLRbitintheSTMnC1registerishighthenthecounterwillbeclearedwhenacompare matchoccursfromComparatorA.However,hereonlytheSTMnAFinterruptrequestflagwill begeneratedevenifthevalueoftheCCRPbitsislessthanthatoftheCCRAregisters.Therefore whenSTnCCLRishighnoSTMnPFinterruptrequestflagwillbegenerated.IntheCompareMatch OutputMode,theCCRAcannotbesetto"0". IftheCCRAbitsareallzero,thecounterwilloverflowwhenitreachesitsmaximum10-bit,3FF Hex,value,howeverheretheSTMnAFinterruptrequestflagwillnotbegenerated. Asthenameofthemodesuggests,afteracomparisonismade,theSTMnoutputpin,willchange state.TheSTMnoutputpinconditionhoweveronlychangesstatewhenaSTMnAFinterruptrequest flagisgeneratedafteracomparematchoccursfromComparatorA.TheSTMnPFinterruptrequest flag,generatedfromacomparematchoccursfromComparatorP,willhavenoeffectontheSTMn outputpin.ThewayinwhichtheSTMnoutputpinchangesstatearedeterminedbytheconditionof theSTnIO1andSTnIO0bitsintheSTMnC1register.TheSTMnoutputpincanbeselectedusing theSTnIO1andSTnIO0bitstogohigh,togolowortotogglefromitspresentconditionwhena comparematchoccursfromComparatorA.TheinitialconditionoftheSTMnoutputpin,whichis setupaftertheSTnONbitchangesfromlowtohigh,issetupusingtheSTnOCbit.Notethatifthe STnIO1andSTnIO0bitsarezerothennopinchangewilltakeplace. |
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