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HT46R068B Datasheet(PDF) 72 Page - Holtek Semiconductor Inc |
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HT46R068B Datasheet(HTML) 72 Page - Holtek Semiconductor Inc |
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72 / 135 page  Rev. 1.50 7� �e���a�� 05� �015 Rev. 1.50 73 �e���a�� 05� �015 HT46R068B/HT46R069B Enhanced A/D 8-Bit OTP MCU HT46R068B/HT46R069B Enhanced A/D 8-Bit OTP MCU • ANCSR1 Register Bit 7 6 5 4 3 2 1 0 Name PCR15 PCR14 PCR13 PCR1� PCR11 PCR10 PCR9 PCR8 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 Bit7 PCR15:DefinePE7isA/Dinputornot 0:NotA/Dinput 1:A/Dinput,AN15 Bit6 PCR14:DefinePE6isA/Dinputornot 0:NotA/Dinput 1:A/Dinput,AN14 Bit5 PCR13:DefinePE5isA/Dinputornot 0:NotA/Dinput 1:A/Dinput,AN13 Bit4 PCR12:DefinePE4isA/Dinputornot 0:NotA/Dinput 1:A/Dinput,AN12 Bit3 PCR11:DefinePE3isA/Dinputornot 0:NotA/Dinput 1:A/Dinput,AN11 Bit2 PCR10:DefinePE2isA/Dinputornot 0:NotA/Dinput 1:A/Dinput,AN10 Bit1 PCR9:DefinePE1isA/Dinputornot 0:NotA/Dinput 1:A/Dinput,AN9 Bit0 PCR8:DefinePE0isA/Dinputornot 0:NotA/Dinput 1:A/Dinput,AN8 TheSTARTbitintheregisterisusedtostartandresettheA/Dconverter.Whenthesetsthisbit fromlowtohighandthenlowagain,ananalogtodigitalconversioncyclewillbeinitiated.When theSTARTbitisbroughtfromlowtohighbutnotlowagain,theEOCBbitintheADCRregister willbesettoa"1"andtheanalogtodigitalconverterwillbereset.ItistheSTARTbitthatisusedto controltheoverallstartoperationoftheinternalanalogtodigitalconverter. TheEOCBbitintheADCRregisterisusedtoindicatewhentheanalogtodigitalconversion processiscomplete.Thisbitwillbeautomaticallysetto"0"bythemicrocontrolleraftera conversioncyclehasended.Inaddition,thecorrespondingA/Dinterruptrequestflagwillbeset intheinterruptcontrolregister,andiftheinterruptsareenabled,anappropriateinternalinterrupt signalwillbegenerated.ThisA/Dinternalinterruptsignalwilldirecttheprogramflowtothe associatedA/Dinternalinterruptaddressforprocessing.IftheA/Dinternalinterruptisdisabled,the microcontrollercanbeusedtopolltheEOCBbitintheADCRregistertocheckwhetherithasbeen clearedasanalternativemethodofdetectingtheendofanA/Dconversioncycle. TheclocksourcefortheA/Dconverter,whichoriginatesfromthesystemclockfSYS,isfirstdivided byadivisionratio,thevalueofwhichisdeterminedbytheADCS2,ADCS1andADCS0bitsinthe ACSRregister. |
Similar Part No. - HT46R068B_15 |
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Similar Description - HT46R068B_15 |
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