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HT45F77 Datasheet(PDF) 109 Page - Holtek Semiconductor Inc |
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HT45F77 Datasheet(HTML) 109 Page - Holtek Semiconductor Inc |
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109 / 203 page  Rev. 1.20 108 De�e��e� 1�� 201� Rev. 1.20 109 De�e��e� 1�� 201� HT45F77 Body Fat Scale Flash MCU HT45F77 Body Fat Scale Flash MCU Bit4~2 ADOR2~ADOR0:Outputdatarateselection NormalMode:OutputDataRate 000:CHOP=2,OSR=16384 001:CHOP=2,OSR=8192 010:CHOP=2,OSR=4096 011:CHOP=2,OSR=2048 100:CHOP=2,OSR=1024 101:CHOP=2,OSR=512 110:CHOP=2,OSR=256 111:CHOP=2,OSR=128 LowLatencyMode:OutputDataRate 000:CHOP=1,OSR=16384 001:CHOP=1,OSR=8192 010:CHOP=1,OSR=4096 011:CHOP=1,OSR=2048 100:CHOP=1,OSR=1024 101:CHOP=1,OSR=512 110:CHOP=1,OSR=256 111:CHOP=1,OSR=128 Bit1 Unimplemented,readas"0" Bit0 VREFS:ADCreferencesourceselection 0:Internalreference(VCM,AVSS) 1:Externalreference(VREFP,VREFN) ADCR1 Register Bit 7 6 5 4 3 2 1 0 Na�e FLMS2 FLMS1 FLMS0 VRBUFN VRBUFP ADCDL EOC — R/W R/W R/W R/W R/W R/W R/W R/W — POR 0 0 0 0 0 0 0 — Bit7~5 FLMS2~FLMS0:ADCoutputdatamodeandclockdivisionratioselection 000:NormalMode,ADCclock/30 010:NormalMode,ADCclock/12 100:LowLatencyMode,ADCclock/30 110:LowLatencyMode,ADCclock/12 Others:Reserved Bit4 VRBUFN:VRNBufferEnable 0:Disable 1:Enable Bit3 VRBUFP:VRPBufferEnable 0:Disable 1:Enable Bit2 ADCDL:ADCconverteddatalatchfunction 0:Disabledatalatch 1:Enabledatalatch IftheADCconverteddatalatchfunctionisenabled,thelatestconverteddatavalue willbelatchedandnotbeupdatedbyanysubsequentconvertedresultsuntilthis functionisdisabled.Althoughtheconverteddataislatchedintothedataregisters,the ADCcircuitsremainoperational,butwillnotgenerateinterruptandEOCwillnot change.Itisrecommendedthatthisbitshouldbesethighbeforereadingtheconverted dataintheADRL,ADRMandADRHregisters.Aftertheconverteddatahasbeen readout,thebitcanthenbeclearedtolowtodisabletheADCdatalatchfunctionand allowfurtherconversionvaluestobestored.Inthisway,thepossibilityofobtaining undesireddataduringADCconversionscanbeprevented. |
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