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HT45F56 数据表(PDF) 35 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) 35 Page - Holtek Semiconductor Inc

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Rev. 1.11
34
April 11, 2017
Rev. 1.11
35
April 11, 2017
HT45F56
Shock Detector Flash MCU
HT45F56
Shock Detector Flash MCU
SLOW Mode to NORMAL Mode Switching
InSLOWmodethesystemclockisderivedfromfSUB.ToswitchbacktotheNORMALMode,
wherethehighspeedsystemoscillatorisused,theHLCLKbitshouldbesetto“1”orHLCLKbitis
“0”buttheCKS2~CKS0fieldissetto“01x”or“1xx”.Asacertainamountoftimewillberequired
forthehighfrequencyclocktostablise,thestatusoftheHTObitischecked.
NORMAL Mode
SLOW Mode
or HLCLK=1
SLEEP0 Mode
IDLEN=0, WDT off
HALT instruction is executed
SLEEP1 Mode
IDLE0 Mode
IDLE1 Mode
CKS2~CKS0 ≠ 00x as HLCLK=0
IDLEN=0, WDT on
HALT instruction is executed
IDLEN=1, FSYSON=0
HALT instruction is executed
IDLEN=1, FSYSON=1
HALT instruction is executed
Entering the SLEEP0 Mode
ThereisonlyonewayforthedevicetoentertheSLEEP0Modeandthatistoexecutethe“HALT”
instructionintheapplicationprogramwiththeIDLENbitintheSMODregisterequalto“0”andthe
WDTisoff.Whenthisinstructionisexecutedundertheconditionsdescribedabove,thefollowing
willoccur:
• Thesystemclock,WDTclockandTimeBaseclockwillbestoppedandtheapplicationprogram
willstopatthe"HALT"instruction.
• TheDataMemorycontentsandregisterswillmaintaintheirpresentcondition.
• TheI/Oportswillmaintaintheirpresentconditions.
• Inthestatusregister,thePowerDownflagPDFwillbeset,andWDTtimeoutflagTOwillbe
cleared.
• TheWDTwillbeclearedandstoppedastheWDTisdisabled.



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