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HT67F370 Datasheet(PDF) 69 Page - Holtek Semiconductor Inc |
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HT67F370 Datasheet(HTML) 69 Page - Holtek Semiconductor Inc |
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69 / 225 page  Rev. 1.00 �8 �an�a�� 0�� �01� Rev. 1.00 �9 �an�a�� 0�� �01� HT67F370 TinyPowerTM A/D Flash MCU with LCD & EEPROM HT67F370 TinyPowerTM A/D Flash MCU with LCD & EEPROM • SMOD1 Register Bit 7 6 5 4 3 2 1 0 Name — — — — — LVRF LRF WRF R/W — — — — — R/W R/W R/W POR — — — — — x 0 0 "x": Unknown Bit7~3 Unimplemented,readas"0" Bit2 LVRF:LVRfunctionresetflag 0:Notoccur 1:Occurred Thisbitissetto1whenaspecificLowVoltageResetsituationconditionoccurs.This bitcanonlybeclearedto0bytheapplicationprogram. Bit1 LRF:LVRcontrolregistersoftwareresetflag 0:Notoccur 1:Occurred Thisbitissetto1iftheLVRCregistercontainsanynon-definedLVRvoltageregister values.Thisineffectactslikeasoftware-resetfunction.Thisbitcanonlybeclearedto 0bytheapplicationprogram. Bit0 WRF:WDTcontrolregistersoftwareresetflag Describeelsewhere. Watchdog Time-out Reset during Normal Operation TheWatchdogtime-outResetduringnormaloperationisthesameasahardwareRESpinreset exceptthattheWatchdogtime-outflagTOwillbesetto"1". WDT Time-o�t Inte�nal Reset tRSTD + tSST Note:tRSTDispower-ondelay,typicaltime=16.7ms WDT Time-out Reset during Normal Operation Timing Chart Watchdog Time-out Reset during SLEEP or IDLE Mode TheWatchdogtime-outResetduringSLEEPorIDLEModeisalittledifferentfromotherkinds ofreset.MostoftheconditionsremainunchangedexceptthattheProgramCounterandtheStack Pointerwillbeclearedto"0"andtheTOflagwillbesetto"1".RefertotheA.C.Characteristicsfor tSSTdetails. WDT Time-o�t Inte�nal Reset tSST WDT Time-out Reset during SLEEP or IDLE Timing Chart |
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