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HT66F019 Datasheet(PDF) 113 Page - Holtek Semiconductor Inc |
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HT66F019 Datasheet(HTML) 113 Page - Holtek Semiconductor Inc |
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113 / 175 page  Rev. 1.00 11� De�e��e� 01� �01� Rev. 1.00 113 De�e��e� 01� �01� HT66F019 A/D Flash MCU with EEPROM HT66F019 A/D Flash MCU with EEPROM • CPC Register Bit 7 6 5 4 3 2 1 0 Na�e CSEL CEN CPOL COUT COS CMPEG1 CMPEG0 CHYEN R/W R/W R/W R/W R R/W R/W R/W R/W POR 1 0 0 0 0 0 0 1 Bit7 CSEL:SelectComparatorpinsorI/Opins 0:I/Opinselect 1:ComparatorinputpinC+andC-selected ThisistheComparatorinputpinorI/Opinselectbit.Ifthebitishighthecomparator inputpinswillbeenabled.Asaresult,thesetwopinswilllosetheirI/Opinfunctions. Anypull-highconfigurationoptionsassociatedwiththecomparatorsharedpinswill alsobeautomaticallydisconnected. Bit6 CEN:ComparatorOn/Offcontrol 0:Off 1:On ThisistheComparatoron/offcontrolbit.Ifthebitiszerothecomparatorwillbe switchedoffandnopowerconsumedevenifanalogvoltagesareappliedtoitsinputs. Forpowersensitiveapplicationsthisbitshouldbeclearedtozeroifthecomparatoris notusedorbeforethedeviceenterstheSLEEPorIDLEmode. Bit5 CPOL:Comparatoroutputpolarity 0:OutputNon-invert 1:OutputInvert Thisisthecomparatorpolaritybit.IfthebitiszerothentheCOUTbitwillreflect thenon-invertedoutputconditionofthecomparator.Ifthebitishighthecomparator COUTbitwillbeinverted. Bit4 COUT:Comparatoroutputbit CPOL=0 0:C+<C- 1:C+>C- CPOL=1 0:C+>C- 1:C+<C- Thisbitstoresthecomparatoroutputbit.Thepolarityofthebitisdeterminedbythe voltagesonthecomparatorinputsandbytheconditionoftheCPOLbit. Bit3 COS:Outputpathselection 0:CXpin(compareoutputcanoutputtoCXpin) 1:I/Opin(compareoutputonlyinternaluse) Bit2~1 CMPEG1~CMPEG0:Comparatoroutputinterruptedgetriggerselection 00:InterruptwillbegeneratedatrisingedgeofCOUT 01:InterruptwillbegeneratedatfallingedgeofCOUT 1x:Interruptwillbegeneratedatrising/fallingedgeofCOUT Bit0 CHYEN:HysteresisControl 0:Off 1:On Thisisthehysteresiscontrolbitandifsethighwillapplyalimitedamountof hysteresistothecomparator,asspecifiedintheComparatorElectricalCharacteristics table.Thepositivefeedbackinducedbyhysteresisreducestheeffectofspurious switchingnearthecomparatorthreshold. |
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