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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT68F005 датащи(PDF) 34 Page - Holtek Semiconductor Inc |
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HT68F005 датащи(HTML) 34 Page - Holtek Semiconductor Inc |
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34 / 93 page  Rev. 1.00 34 ��to�e� ��� �01� Rev. 1.00 35 ��to�e� ��� �01� HT68F005/HT68F006 Enhanced I/O Flash Type MCU HT68F005/HT68F006 Enhanced I/O Flash Type MCU Bit1 IDLEN:IDLEModecontrol 0:Disable 1:Enable ThisistheIDLEModeControlbitanddetermineswhathappenswhentheHALT instructionisexecuted.Ifthisbitishigh,whenaHALTinstructionisexecutedthe deviceswillentertheIDLEMode.IntheIDLE1ModetheCPUwillstoprunning butthesystemclockwillcontinuetokeeptheperipheralfunctionsoperational,if FSYSONbitishigh.IfFSYSONbitislow,theCPUandthesystemclockwillallstop inIDLE0mode.IfthebitislowthedeviceswillentertheSLEEPModewhenaHALT instructionisexecuted. Bit0 HLCLK:Systemclockselection 0:fH/2~fH/64orfL 1:fH ThisbitisusedtoselectifthefHclockorthefH/2~fH/64orfLclockisusedasthe systemclock.WhenthebitishighthefHclockwillbeselectedandiflowthe fH/2~fH/64orfLclockwillbeselected.WhensystemclockswitchesfromthefHclock tothefLclockandthefHclockwillbeautomaticallyswitchedofftoconservepower. Fast Wake-up TominimisepowerconsumptionthedevicescanentertheSLEEPorIDLE0Mode,wherethe systemclocksourcetothedeviceswillbestopped.Howeverwhenthedevicesarewokenupagain, itcantakeaconsiderabletimefortheoriginalsystemoscillatortorestart,stabilizeandallownormal operationtoresume.ToensurethedevicesareupandrunningasfastaspossibleaFastWake-up functionisprovided,whichallowfLIRC,namelyLIRCoscillator,toactasatemporaryclocktofirst drivethesystemuntiltheoriginalsystemoscillatorhasstabilised.AstheclocksourcefortheFast Wake-upfunctionisfLIRC,theFastWake-upfunctionisonlyavailableintheSLEEP1andIDLE0 modes.WhenthedevicesarewokenupfromtheSLEEP0mode,theFastWake-upfunctionhasno effectbecausethefLIRCclockisstopped.TheFastWake-upenable/disablefunctioniscontrolled usingtheFSTENbitintheSMODregister. IftheHXToscillatorisselectedastheNORMALModesystemclock,andiftheFastWake-up functionisenabled,thenitwilltakeonetotwotLIRCclockcyclesoftheLIRCoscillatorforthe systemtowake-up.ThesystemwilltheninitiallyrununderthefLIRCclocksourceuntil1024HXT clockcycleshaveelapsed,atwhichpointtheHTOflagwillswitchhighandthesystemwillswitch overtooperatingfromtheHXToscillator. IftheHIRCoscillatorsorLIRCoscillatorisusedasthesystemoscillatorthenitwilltake15~16 clockcyclesoftheHIRCor1~2cyclesoftheLIRCtowakeupthesystemfromtheSLEEPor IDLE0Mode.TheFastWake-upbit,FSTENwillhavenoeffectinthesecases. System Oscillator FSTEN Bit Wake-up Time (SLEEP0 Mode) Wake-up Time (SLEEP1 Mode) Wake-up Time (IDLE0 Mode) Wake-up Time (IDLE1 Mode) HXT 0 10�4 HXT �y�les 10�4 HXT �y�les 1~� HXT �y�les 1 10�4 HXT �y�les 1~� fLIRC cycles (System runs first with fLIRC fo� 10�4 HXT �y�les and then swit�hes ove� to �un with the HXT �lo�k) 1~� HXT �y�les HIRC x 15~16 HIRC �y�les 15~16 HIRC �y�les 1~� HIRC �y�les LIRC x 1~� LIRC �y�les 1~� LIRC �y�les 1~� LIRC �y�les “x”: don’t �a�e Wake-Up Times NotethatiftheWatchdogTimerisdisabled,whichmeansthattheLIRCisoff,thentherewillbeno FastWake-upfunctionavailablewhenthesedeviceswake-upfromtheSLEEP0Mode. |
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