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HT45F56 数据表(PDF) 36 Page - Holtek Semiconductor Inc

部件名 HT45F56
功能描述  Shock Detector Flash MCU
PDF  90 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  HOLTEK [Holtek Semiconductor Inc]
网页  http://www.holtek.com
标志 HOLTEK - Holtek Semiconductor Inc

HT45F56 数据表(HTML) 36 Page - Holtek Semiconductor Inc

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Rev. 1.11
36
April 11, 2017
Rev. 1.11
37
April 11, 2017
HT45F56
Shock Detector Flash MCU
HT45F56
Shock Detector Flash MCU
Entering the SLEEP1 Mode
ThereisonlyonewayforthedevicetoentertheSLEEP1Modeandthatistoexecutethe“HALT”
instructionintheapplicationprogramwiththeIDLENbitintheSMODregisterequalto“0”andthe
WDTison.Whenthisinstructionisexecutedundertheconditionsdescribedabove,thefollowing
willoccur:
• ThesystemclockandTimeBaseclockwillbestoppedandtheapplicationprogramwillstopat
the"HALT"instruction.However,theWDTclockwillcontinuetorun.
• TheDataMemorycontentsandregisterswillmaintaintheirpresentcondition.
• TheI/Oportswillmaintaintheirpresentconditions.
• Inthestatusregister,thePowerDownflagPDFwillbeset,andWDTtimeoutflagTOwillbe
cleared.
• TheWDTwillbeclearedandresumecountingastheWDTisenabled.
Entering the IDLE0 Mode
ThereisonlyonewayforthedevicetoentertheIDLE0Modeandthatistoexecutethe“HALT”
instructionintheapplicationprogramwiththeIDLENbitintheSMODEregisterequalto“1”and
theFSYSONbitintheSMOD1registerequalto“0”.Whenthisinstructionisexecutedunderthe
conditionsdescribedabove,thefollowingwilloccur:
• Thesystemclockwillbestoppedandtheapplicationprogramwillstopatthe“HALT”
instruction,buttheTimeBaseclockwillbeon.
• TheDataMemorycontentsandregisterswillmaintaintheirpresentcondition.
• TheI/Oportswillmaintaintheirpresentconditions.
• Inthestatusregister,thePowerDownflagPDFwillbeset,andWDTtimeoutflagTOwillbe
cleared.
• TheWDTwillbeclearedandresumecountingiftheWDTfunctionisenabled.
Entering the IDLE1 Mode
ThereisonlyonewayforthedevicetoentertheIDLE1Modeandthatistoexecutethe“HALT”
instructionintheapplicationprogramwithIDLENbitintheSMODEregisterequalto“1”and
theFSYSONbitintheSMOD1registerequalto“1”.Whenthisinstructionisexecutedunderthe
conditionsdescribedabove,thefollowingwilloccur:
• ThesystemclockandTimeBaseclockwillbeonbuttheapplicationprogramwillstopatthe
“HALT”instruction.
• TheDataMemorycontentsandregisterswillmaintaintheirpresentcondition.
• TheI/Oportswillmaintaintheirpresentconditions.
• Inthestatusregister,thePowerDownflagPDFwillbeset,andWDTtimeoutflagTOwillbe
cleared.
• TheWDTwillbeclearedandresumecountingiftheWDTfunctionisenabled.



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