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HT68F003 bảng dữ liệu(PDF) 35 Page - Holtek Semiconductor Inc |
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HT68F003 bảng dữ liệu(HTML) 35 Page - Holtek Semiconductor Inc |
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35 / 119 page  Rev. 1.41 34 April 11, 2017 Rev. 1.41 35 April 11, 2017 HT68F002/HT68F0025/HT68F003 Cost-Effective Flash MCU with EEPROM HT68F002/HT68F0025/HT68F003 Cost-Effective Flash MCU with EEPROM NORMAL Mode Asthenamesuggeststhisisoneofthemainoperatingmodeswherethemicrocontrollerhasall ofitsfunctionsoperationalandwherethesystemclockisprovidedthehighspeedoscillator.This modeoperatesallowingthemicrocontrollertooperatenormallywithaclocksourcewillcomefrom thehighspeedoscillatorHIRC.Thehighspeedoscillatorwillhoweverfirstbedividedbyaratio rangingfrom1to64,theactualratiobeingselectedbytheCKS2~CKS0andHLCLKbitsinthe SMODregister.Althoughahighspeedoscillatorisused,runningthemicrocontrolleratadivided clockratioreducestheoperatingcurrent. SLOW Mode Thisisalsoamodewherethemicrocontrolleroperatesnormallyalthoughnowwithaslower speedclocksource.TheclocksourceusedwillbefromthelowspeedoscillatorLIRC.Running themicrocontrollerinthismodeallowsittorunwithmuchloweroperatingcurrents.IntheSLOW Mode,thefHisoff. SLEEP0 Mode TheSLEEPModeisenteredwhenanHALTinstructionisexecutedandwhentheIDLENbitinthe SMODregisterislow.IntheSLEEP0modetheCPUwillbestopped,andthefLIRCclockwillbe stoppedtoo,andtheWatchdogTimerfunctionisdisabled. SLEEP1 Mode TheSLEEPModeisenteredwhenanHALTinstructionisexecutedandwhentheIDLENbitinthe SMODregisterislow.IntheSLEEP1modetheCPUwillbestopped.HoweverthefLIRCclockswill continuetooperateiftheWatchdogTimerfunctionisenabled. IDLE0 Mode TheIDLE0ModeisenteredwhenaHALTinstructionisexecutedandwhentheIDLENbitinthe SMODregisterishighandtheFSYSONbitintheSMOD1registerislow.IntheIDLE0Modethe systemoscillatorwillbeinhibitedfromdrivingtheCPUbutsomeperipheralfunctionswillremain operationalsuchastheWatchdogTimerandTMs.IntheIDLE0Mode,thesystemoscillatorwillbe stopped. IDLE1 Mode TheIDLE1ModeisenteredwhenaHALTinstructionisexecutedandwhentheIDLENbitinthe SMODregisterishighandtheFSYSONbitintheSMOD1registerishigh.IntheIDLE1Modethe systemoscillatorwillbeinhibitedfromdrivingtheCPUbutmaycontinuetoprovideaclocksource tokeepsomeperipheralfunctionsoperationalsuchastheWatchdogTimerandTMs.IntheIDLE1 Mode,thesystemoscillatorwillcontinuetorun,andthissystemoscillatormaybehighspeedorlow speedsystemoscillator.IntheIDLE1Mode,theWatchdogTimerclock,fLIRC,willbeon. |
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