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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT66F007 датащи(PDF) 39 Page - Holtek Semiconductor Inc |
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HT66F007 датащи(HTML) 39 Page - Holtek Semiconductor Inc |
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39 / 131 page  Rev. 1.41 38 April 11, 2017 Rev. 1.41 39 April 11, 2017 HT66F007/HT66F008 Cost-Effective A/D Flash MCU with EEPROM HT66F007/HT66F008 Cost-Effective A/D Flash MCU with EEPROM Bit1 IDLEN:IDLEModeControl 0:Disable 1:Enable ThisistheIDLEModeControlbitanddetermineswhathappenswhentheHALT instructionisexecuted.Ifthisbitishigh,whenaHALTinstructionisexecutedthe devicewillentertheIDLEMode.IntheIDLE1ModetheCPUwillstoprunning butthesystemclockwillcontinuetokeeptheperipheralfunctionsoperational,if FSYSONbitishigh.IfFSYSONbitislow,theCPUandthesystemclockwillallstop inIDLE0mode.IfthebitislowthedevicewillentertheSLEEPModewhenaHALT 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,stabiliseandallownormal operationtoresume.ToensurethedevicesareupandrunningasfastaspossibleaFastWake-up functionisprovided,whichallowsfSUB,namelytheLIRCoscillator,toactasatemporaryclock tofirstdrivethesystemuntiltheoriginalsystemoscillatorhasstabilised.Astheclocksourcefor theFastWake-upfunctionisfSUB,theFastWake-upfunctionisonlyavailableintheSLEEP1 andIDLE0modes.WhenthedevicesarewokenupfromtheSLEEP0mode,theFastWake-up functionhasnoeffectbecausethefSUBclockisstopped.TheFastWake-upenable/disablefunctionis controlledusingtheFSTENbitintheSMODregister. IftheHXToscillatorisselectedastheNORMALModesystemclock,andiftheFastWake-up functionisenabled,thenitwilltakeonetotwotSUBclockcyclesoftheLIRCoscillatorforthe systemtowake-up.ThesystemwilltheninitiallyrununderthefSUBclocksourceuntil1024HXT 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, FSYSON=0) Wake-up Time (IDLE1 Mode, FSYSON=1) HXT 0 1024 HXT cycles 1024 HXT cycles 1~2 HXT cycles 1 1024 HXT cycles 1~2 fSUB cycles (System runs with fSUB first for 1024 HXT cycles and then switches over to run with the HXT clock) 1~2 HXT cycles HIRC × 15~16 HIRC cycles 15~16 HIRC cycles 1~2 HIRC cycles LIRC × 1~2 LIRC cycles 1~2 LIRC cycles 1~2 LIRC cycles NotethatiftheWatchdogTimerisdisabled,whichmeansthattheLIRCisoff,thentherewillbeno FastWake-upfunctionavailablewhenthedeviceswake-upfromtheSLEEP0Mode. |
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