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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT67F5652 датащи(PDF) 62 Page - Holtek Semiconductor Inc |
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HT67F5652 датащи(HTML) 62 Page - Holtek Semiconductor Inc |
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62 / 224 page  Rev. 1.00 �� De�e��e� 0�� �01� Rev. 1.00 �3 De�e��e� 0�� �01� HT67F5652 24-Bit Delta Sigma A/D + LCD Flash MCU HT67F5652 24-Bit Delta Sigma A/D + LCD Flash MCU Programming Considerations TheHXTandLXToscillatorsbothusethesameSSTcounter.Forexample,ifthesystemiswoken upfromtheSLEEP0ModeandboththeHXTandLXToscillatorsneedtostart-upfromanoffstate. TheLXToscillatorusestheSSTcounterafterHXToscillatorhasfinisheditsSSTperiod. • IfthedeviceiswokenupfromtheSLEEP0ModetotheNORMALMode,thehighspeedsystem oscillatorneedsanSSTperiod.ThedevicewillexecutefirstinstructionafterHTOis"1".Atthis time,theLXToscillatormaynotbestabilityiffSUBisfromLXToscillator.Thesamesituation occursinthepower-onstate.TheLXToscillatorisnotreadyyetwhenthefirstinstructionis executed. • IfthedeviceiswokenupfromtheSLEEP1ModetoNORMALMode,andthesystemclock sourceisfromHXToscillatorandFSTENis"1",thesystemclockcanbeswitchedtotheLXTor LIRCoscillatorafterwakeup. • Thereareperipheralfunctions,suchasWDT,TMs,LCDdriverandSIM,forwhichthefSYSis used.IfthesystemclocksourceisswitchedfromfHtofSUB,theclocksourcetotheperipheral functionsmentionedabovewillchangeaccordingly. |
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