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HT45F75 Datasheet(PDF) 104 Page - Holtek Semiconductor Inc |
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HT45F75 Datasheet(HTML) 104 Page - Holtek Semiconductor Inc |
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104 / 190 page  Rev. 1.10 10� De�e��e� 1�� �01� Rev. 1.10 105 De�e��e� 1�� �01� HT45F75 Body Fat Scale Flash MCU HT45F75 Body Fat Scale Flash MCU PGACS Register Bit 7 6 5 4 3 2 1 0 Na�e — — CHSN� CHSN1 CHSN0 CHSP� CHSP1 CHSP0 R/W — — R/W R/W R/W R/W R/W R/W POR — — 0 0 0 0 0 0 Bit7~6 Unimplemented,readas“0” Bit5~3 CHSN2~CHSN0:PGAnegativeinputendsselection 000:AN1 001:AN3 010:Reserved 011:Reserved 100:Reserved 101:VDD/5 110:VCM 111:TemperaturesensorVTSO- Bit2~0 CHSP2~CHSP0:PGApositiveinputendsselection 000:AN0 001:AN2 010:Reserved 011:Reserved 100:Reserved 101:RFC–TheRFCisasingle-endinput,ifselected,thenthePGAnegativeinput mustselectVCM,AN1orAN3. 110:VCM 111:TemperaturesensorVTSO+ Note:IfthePGAisassignedtohaveasingleendinputonDI+,thentheDI-inputmustselectVCM. A/D Converter Data Registers – ADRL, ADRM, ADRH Thisdevicecontainsaninternal20-bitΔΣA/Dconverter,itrequiresthreedataregisterstostorethe convertedvalue.Theseareahighbyteregister,knownasADRH,ADRMandalowbyteregister, knownasADRL.Aftertheconversionprocesstakesplace,theseregisterscanbedirectlyreadbythe microcontrollertoobtainthedigitisedconversionvalue.D0~D19aretheA/Dconversionresultdata bits. ADRH Register Bit 7 6 5 4 3 2 1 0 Na�e — — — — D19 D18 D17 D1� R/W — — — — R R R R POR — — — — x x x x “x” unknown Bit7~4 Unimplemented,readas“0” Bit3~0 A/DconversiondataRegisterbit19~bit16 ADRM Register Bit 7 6 5 4 3 2 1 0 Na�e D15 D1� D13 D1� D11 D10 D9 D8 R/W R R R R R R R R POR x x x x x x x x “x” unknown Bit7~0 A/DconversiondataRegisterbit15~bit8 |
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