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HT66F20 Datasheet(PDF) 183 Page - Holtek Semiconductor Inc |
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HT66F20 Datasheet(HTML) 183 Page - Holtek Semiconductor Inc |
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183 / 298 page  Rev. 1.90 18� �e���a�� 18� �01� Rev. 1.90 18� �e���a�� 18� �01� HT66F20/HT66F30/HT66F40/HT66F50/HT66F60 HT66FU30/HT66FU40/HT66FU50/HT66FU60 Enhanced A/D Flash Type 8-Bit MCU with EEPROM HT66F20/HT66F30/HT66F40/HT66F50/HT66F60 HT66FU30/HT66FU40/HT66FU50/HT66FU60 Enhanced A/D Flash Type 8-Bit MCU with EEPROM Comparator Registers Therearetworegistersforoverallcomparatoroperation,oneforeachcomparator.Ascorresponding bitsinthetworegistershaveidenticalfunctions,theyfollowingregistertableappliestoboth registers. Register Name Bit 7 6 5 4 3 2 1 0 CP0C C0SEL C0EN C0POL C0OUT C0OS — — C0HYEN CP1C C1SEL C1EN C1POL C1OUT C1OS — — C1HYEN Comparator Registers List CP0C Registe Bit 7 6 5 4 3 2 1 0 Name C0SEL C0EN C0POL C0OUT C0OS — — C0HYEN R/W R/W R/W R/W R R/W — — R/W POR 1 0 0 0 0 — — 1 Bit7 C0SEL:SelectComparatorpinsorI/Opins 0:I/Opinselect 1:Comparatorpinselect ThisistheComparatorpinorI/Opinselectbit.Ifthebitishighthecomparatorwill beselectedandthetwocomparatorinputpinswillbeenabled.Asaresult,thesetwo pinswilllosetheirI/Opinfunctions.Anypull-highconfigurationoptionsassociated withthecomparatorsharedpinswillalsobeautomaticallydisconnected. Bit6 C0EN:ComparatorOn/Offcontrol 0:Off 1:On ThisistheComparatoron/offcontrolbit.Ifthebitiszerothecomparatorwillbe switchedoffandnopowerconsumedevenifanalogvoltagesareappliedtoitsinputs. Forpowersensitiveapplicationsthisbitshouldbeclearedtozeroifthecomparatoris notusedorbeforethedeviceenterstheSLEEPorIDLEmode. Bit5 C0POL:Comparatoroutputpolarity 0:Outputnotinverted 1:Outputinverted Thisisthecomparatorpolaritybit.IfthebitiszerothentheC0OUTbitwillreflect thenon-invertedoutputconditionofthecomparator.Ifthebitishighthecomparator C0OUTbitwillbeinverted. Bit4 C0OUT:Comparatoroutputbit C0POL=0 0:C0+<C0- 1:C0+>C0- C0POL=1 0:C0+>C0- 1:C0+<C0- Thisbitstoresthecomparatoroutputbit.Thepolarityofthebitisdeterminedbythe voltagesonthecomparatorinputsandbytheconditionoftheC0POLbit. |
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