Datenblatt-Suchmaschine für elektronische Bauteile |
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HT45R4U Datenblatt(PDF) 82 Page - Holtek Semiconductor Inc |
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HT45R4U Datenblatt(HTML) 82 Page - Holtek Semiconductor Inc |
82 / 105 page Rev. 1.10 8� �a��� 1�� �01� Rev. 1.10 83 �a��� 1�� �01� HT45R4U TinyPowerTM A/D Type e-Banking ASSP OTP MCU with LCD Entering the SLEEP1 Mode ThereisonlyonewayforthedevicetoentertheSLEEP1Modeandthatistoexecutethe"HALT" instructionintheapplicationprogramwiththeIDLENbitinSMODregisterequalto"0"andthe WDTison.Whenthisinstructionisexecutedundertheconditionsdescribedabove,thefollowing willoccur: • Thesystemclockwillbestoppedandtheapplicationprogramwillstopatthe"HALT"instruc- tion,buttheWDTfunctionwillremainwiththeclocksourcecomingfromthefSUBclock. • TheDataMemorycontentsandregisterswillmaintaintheirpresentcondition. • TheWDTwillbeclearedandresumecountingastheWDTisenabled. • TheI/Oportswillmaintaintheirpresentconditions. • Inthestatusregister,thePowerDownflag,PDF,willbesetandtheWatchdogtime-outflag,TO, willbecleared. Entering the IDLE0 Mode ThereisonlyonewayforthedevicetoentertheIDLE0Modeandthatistoexecutethe"HALT" instructionintheapplicationprogramwiththeIDLENbitinSMODregisterequalto"1"andthe FSYSONbitinSMOD1registerequalto"0".Whenthisinstructionisexecutedundertheconditions describedabove,thefollowingwilloccur: • Thesystemclockwillbestoppedandtheapplicationprogramwillstopatthe"HALT" instruction,butthefSUBclockwillbeon. • TheDataMemorycontentsandregisterswillmaintaintheirpresentcondition. • TheWDTwillbeclearedandresumecountingastheWDTclocksourceisderivedfromthefSUB clock. • TheI/Oportswillmaintaintheirpresentconditions. • Inthestatusregister,thePowerDownflag,PDF,willbesetandtheWatchdogtime-outflag,TO, willbecleared. Entering the IDLE1 Mode ThereisonlyonewayforthedevicetoentertheIDLE1Modeandthatistoexecutethe"HALT" instructionintheapplicationprogramwiththeIDLENbitinSMODregisterequalto"1"andthe FSYSONbitinSMOD1registerequalto"1".Whenthisinstructionisexecutedundertheconditions describedabove,thefollowingwilloccur: • ThesystemclockandfSUBclockwillbeonandtheapplicationprogramwillstopatthe"HALT" instruction. • TheDataMemorycontentsandregisterswillmaintaintheirpresentcondition. • TheWDTwillbeclearedandresumecountingastheWDTclocksourceisderivedfromthefSUB clock. • TheI/Oportswillmaintaintheirpresentconditions. • Inthestatusregister,thePowerDownflag,PDF,willbesetandtheWatchdogtime-outflag,TO, willbecleared. |
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