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外文翻译基于单片机的智能电风扇控制系统.doc

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外文原文Single-chipmicrocomputer1.theintroductionofthesinglechipmicrocomputerThesinglechipisonekindofintegratedcircuitchip,whichusestheultralarge-scaletechnologyandhasthedata-handlingcapacity(forexamplearithmeticoperation,logicoperation,datatransfer,interruptprocessing)themicroprocessor(CPU),randomaccessdata-carrierstorage(RAM),read-onlyprogrammemory(ROM),inputoutputcircuit(I/O),possiblyalsoincludesfixedtimethecounter,serialpassesunguardedly(SCI),demonstrationactuationelectriccircuit(LCDorLEDactuationelectriccircuit),pulse-durationmodulationelectriccircuit(PWM),simulationmultichannelswitchandA/ElectriccircuitandsoonDswitchintegratestotogetherthemonolithchipon,constitutestobesmallestthecomputersystemwhichhoweverconsummates.Theseelectriccircuitscanunderthesoftwarecontrolaccurate,berapid,highlyeffectivecompletetheproceduredesignerpresettheduty.Fromthislookedthat,singlechiphasthefunctionwhichthemicroprocessordoesnothave,itmayalonecompletetheintellectualizationcontrolfunctionwhichthemodernindustrycontrolrequests,thisissinglechipbiggestcharacteristic.Howeversinglechipalsoisdifferentwiththesingletrigger,thechipbeforethedevelopment,itonlyhasthefunctiongreatlystrengthenedultralargescaleintegratedcircuit,ifentrustswithitthespecificprocedure,itthenisyoungest,theintegritymicrocomputercontrolsystem,it(PCmachine)hastheessentialdifferencewiththesingletriggerorthepersonalcomputing,singlechipapplicationbelongstothechiplevelapplication,needstheusertounderstandsinglechipchipthestructureandthecommandsystemaswellasotherintegratedcircuitapplicationtechnologiesandthesystemdesignneedtheoryandtechnology,withsuchspecificchipdesignapplicationprocedure,thuscausesthischiptohavethespecificfunction.Thedifferentsinglechiphasthedifferenthardwarecharacteristicandthesoftwarecharacteristic,namelytheirtechnicalcharacteristicisdifferent,thehardwarecharacteristicisdecidedbysinglechipchipinternalstructure,theusermustusesomekindofsinglechip,mustunderstandwhetherthisproductdoessatisfythecharacteristictargetwhic