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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT45F56 датащи(PDF) 31 Page - Holtek Semiconductor Inc |
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HT45F56 датащи(HTML) 31 Page - Holtek Semiconductor Inc |
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31 / 90 page  Rev. 1.11 30 April 11, 2017 Rev. 1.11 31 April 11, 2017 HT45F56 Shock Detector Flash MCU HT45F56 Shock Detector Flash MCU SLOW Mode Thisisalsoamodewherethemicrocontrolleroperatesnormallyalthoughnowwithaslowerspeed clocksource.TheclocksourceusedwillbefromfSUB.ThefSUBclockisderivedfromtheLIRC oscillator.Runningthemicrocontrollerinthismodeallowsittorunwithmuchloweroperating currents.IntheSLOWmode,thefHisswitchedoff. SLEEP0 Mode TheSLEEP0ModeisenteredwhenanHALTinstructionisexecutedandwhentheIDLENbitis low.IntheSLEEP0modetheCPUwillbestoppedandthefSUBclockwillalsobestoppedasthe WatchdogTimerfunctionisdisabled. SLEEP1 Mode TheSLEEP1ModeisenteredwhenanHALTinstructionisexecutedandwhentheIDLENbitis low.IntheSLEEP1modetheCPUwillbestopped.However,thefSUBclockwillcontinuetorunas theWatchdogTimerfunctionisenabled. IDLE0 Mode TheIDLE0ModeisenteredwhenanHALTinstructionisexecutedandwhentheIDLENbitishigh andtheFSYSONbitislow.IntheIDLE0Modethesystemoscillatorwillbeinhibitedfromdriving theCPUbutsomeperipheralfunctionswillremainoperationalsuchastheWatchdotTimerand TMs.IntheIDLE0mode,thesystemoscillatorwillbestopped. IDLE1 Mode TheIDLE1ModeisenteredwhenanHALTinstructionisexecutedandwhentheIDLENbitishigh andtheFSYSONbitishigh.IntheIDLE1Modethesystemoscillatorwillbeinhibitedfromdriving theCPUbutmaycontimuetoprovideaclocksourcetokeepsomeperipheralfunctionsoperational suchastheWatchdotTimerandTMs.IntheIDLE1mode,thesystemoscillatorwillcontinueto runandthissystemoscillatormaytbehighorlowspeedsystemoscillator.InIELD1mode,the WatchdogTimerclock,fSUB,willbeswitchedon. Control Registers Theregister,SMOD,isusedforoverallcontroloftheinternalclockswithinthedevice. SMOD Register Bit 7 6 5 4 3 2 1 0 Name CKS2 CKS1 CKS0 — LTO HTO IDLEN HLCLK R/W R/W R/W R/W — R R R/W R/W POR 0 0 0 — 0 0 1 1 Bit7~5 CKS2~CKS0:Systemclockselection 000:fSUB 001:fSUB 010:fH/64 011:fH/32 100:fH/16 101:fH/8 110:fH/4 111:fH/2 Thesethreebitsareusedtoselectwhichclockisusedasthesystemclocksource. Inadditiontothesystemclocksource,whichcanbethefSUBclocksource,adivided versionofthehighspeedsystemoscillatorcanalsobechosenasthesystemclock source. |
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