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首页 芯片STC12C5204AD外文资料(IO口分配)

芯片STC12C5204AD外文资料(IO口分配).doc

芯片STC12C5204AD外文资料(IO口分配)

笑着脸酷似丶坚强
2017-10-21 0人阅读 举报 0 0 暂无简介

简介:本文档为《芯片STC12C5204AD外文资料(IO口分配)doc》,可适用于高等教育领域

芯片STCCAD外文资料(IO口分配)ChipSTCCADIOportconfigurationSTCCADseriesmicrocontrolleritsallIOportsarecontrolledbythesoftwareconfigurationintokindsofworktypetypesarerespectively:quasitwowaymouth(standardtheoutputmode),pushpulloutput,onlyforinput(highresistance)oropendrainoutputfunctionsEverymouthconsistsoftwocontrolregistertherelevantpositioncontroleachpintypeofworkSTCCADseriesmicrocontrollertoelectricityreattachmentshallprevailtwowaymouth(standardtheoutputmode)mode:Vabovehighlevel,VforlowlevelbelowQuasitwowaymouthoutputconfigurationQuasitwowaymouthoutputtypecanbeusedasoutputandinputfunctionbutdon'tneedtoreconfiguremouthlinesoutputstateThisisbecausejuncturelinesoutputisdriveabilityisveryweak,allowingexternaldeviceswillitsdownWhenpinsforlow,itoutputdrivingability,canabsorbtheconsiderablecurrentQuasitwowaymouthhavepulluptransistoradaptedtodifferentneedsInthethreeandonetransistor,pulluptransistorcalledweakonpull",forandpaternallineregistersitselfpinsforopenThispullupprovidesbasicdrivecurrentmakeprospectivetwowaymouthforoutputIfapinforandoutputbyexternaldevicestodropdowntolow,pullupcloseandweak"veryweakpullup"maintainopenposition,inordertoputthispinforlow,strongtopulltheexternaldevicesmusthaveenoughpowertomakepininfusedcurrentthresholdvoltageofavoltagetothefollowingArticlepulluptransistors,called"extremelyweakonpull",latchpaternallinewhenopenWhenpin,theveryweaksuspendedthepullupsourcegeneratesveryweakandcurrentwillpinandhighlevelArticlepulluptransistorcalled"powerfulpull"Juncturelinelatchesfromto,thejumpingtoacceleratemustpullupbylogictotwowaymouthlogicconversionWhenthishappened,powerfulpullopenaboutmachinecycletomakepinscanquicklypulltotheearthhighlevelQuasitwowaymouthoutputshownbelowSTCCseriesmicrocontrollerVdevice,iftheuserisinpinsplusVvoltage,therewillbeacurrentflowfrompins,thishascausedadditionalVDDpowerconsumptionAccordingly,theproposalisnotinquasitwowaymouthmodeVmicrocontrollerpinstoexertVvoltage,suchastheuseofwords,willaddcurrentlimitingresistor,orusingdiodedoinputisolation,orusetriodedooutputsegregationQuasitwowaymouthwithaschmidttriggerinputandainterferencesuppressioncircuitThepushpulloutputconfigurationThedropdownpushpulloutputconfigurationopendrainoutputandthestructureandtheprospectivetwowaymouthdownsamestructure,butwhenlatchesisprovidescontinuousstrongpullupThepushpullmodelneedmorecommonlyusedfordrivingcurrentsituationThepushpullpinsconfigurationareshownbelowOnlyforinput(highresistance)configurationInputportconfigurationareshownbelowInputportwithaschmidttriggerinputandainterferencesuppressioncircuitOpendrainoutputconfigurationJuncturelinelatchesis,theopendrainoutputcloseallpulluptransistorsWhen,asalogicaloutput,thisconfigurationmodemusthaveexternallypull,usuallybyresistancereceivingVDDoutsideThisstyleofdropdownandquasitwowaymouththesameThejammerlineconfigurationareshownbelowOpendrainportwithaschmidttriggerinputandainterferencesuppressioncircuitAtypicaltransistorcontrolcircuitIfuseweakpullupcontrol,suggestionpluspullupresistorsR(K~K),ifnotaddpullupresistorsR(K~K),suggestRvalueintheKabove,oruseastrongpushpulloutputSTCCADseriesmicrocontrollerprogrammablecounterarray(PCA)PCAcontainsaspecialtimer,hasfourbitsofcapturecomparisonofmoduleandconnectedEachmoduleprogrammableworkInfourmode:increasedecreasealongthecapture,softwaretimer,highspeedoutputorcouldbemodulatedpulseoutputModulesconnectedtoP(CEXPCAPWM),moduleconnectedtoP(CEXPCAPWM),modulesconnectedtoP(CEXPCAPWM),modulesconnectedtoP(CEXPCAPWM)RegisterthecontentofCHandCLisfreeofPCAincreasingcountthevalueofthetimerPCAtimerisfourmodules,thepublictimebenchmarkbyprogrammingworkProgrammableCounterArrayPCATimerCounterCMODSFRtherearebytesandPCArelatedTheywere:CIDL,idlemodeallowsstopPCAECF,buya,enablingPCAinterrupt,whenPCAtimerspilloverwillPCAcountingoverflowmarksCCONSFR(CF)buybitsCCONSFRcontainsPCAoperatingcontrolbits(CR)andPCAtimermark(CF)andsymbolofeachmoduleCCFCCF(CCF)CCFThroughthesoftwareforaCRbits(CCON)torunPCACRbitisresetwhenPCAclosedWhenPCAcounteroverflow,CFpatients(CCON)buya,ifCMODregister,itproducesECFpositionadisruptionCFbitscanonlythroughsoftwareclearedCCONregistera~isPCAmoduleslogo(a,acorrespondingmodulecorrespondingmodule,bitscorrespondingmodule,acorrespondingmodule),whenthereisamatchorbyhardwarebuyacomparisonsThesesignalsaretheonlythroughsoftwareclearedPCAcaptureofpatterningIfCCONSFRbitsofthethroneofCCFnandCCAPMnSFRECCFnbitissetposition,willproducetheinterruptionAsoftwaretimermodeThroughtheCCAPMnregistersforaECOMandMATbits,canmakethePCAmoduleusedforsoftwaretimer(below)PCAtimervaluesandmoduleoftheregistercomparedtocapture,whenbothvaluesequal,ifaCCONSFRinCCFn(in)andaECCFnCCAPMnSFR)inallbuybits,willproducetheinterruptionPCASoftwareTimerModeSoftwareTimermodelPCAcomparativeModePCASoftwareTimerModeSoftwareTimermodelPCAcomparativeModeHighspeedoutputmodelThismodel(below),whenPCAcounterplanofthenumericalandmodulecaptureregistersmatching,PCAvalueCEXnoutputwillhappenmoduleoftheflipToactivatethehighspeedoutputmodesofCCAPMnTOGSFR,modules,MATandECOMbitmustbuybitsPCAHighSpeed,OutputModePCAhighspeedOutputModeInusePCAhighspeedoutputmodespecialapplicationnote:IfacertainPCAmoduleworkinginhighspeedpulseoutputmode,wanttousesoftwareoutputchangethesamegroupofothercommonIOportstate,needtodofirst,whetherCCAPnHjudgeCHisequaltoabide,canfreelymodify,ifequal,anddetermineCCAPnLcircumstances>CLisallowedtochangethesamegroupofothercommonIOportstateIfusePPCAPWMdoPCAhighspeedpulseoutput,andtheprograminsideandwithsoftwareoutputchangewhenthestatePmouth,youneedtodojudgmentWhenonehasthePCAhighspeedpulseoutputfunctionofIOmouthworkinginhighspeedpulseoutputmode,ifthesoftwareforthesamegroupofotherIOportoperation,ifmeetPCAcomparatormatching,thisoperationcanchangethepulseoutputfunctionwithPCAhighspeedmouthoftheIOPCAPWMmodemodulationpulsewidthoutputmodeSinceallshareonlyPCAtimermodules,alltheiroutputfrequencyissameTheoutputofeachmodulevisindependentofthechanges,andusingEPCnL,capturedCCAPnL}}{ofregistersconcernedWhenCLSFRvalueislessthanCCAPnL}}{EPCnL,whenoutputislow,andthevalueofSFRwhenPCACLisequaltoorgreaterthanEPCnL,CCAPnL}}{,theoutputashighWhenthevalueoftheCLbyFFintoEPCnH,overflow,CCAPnH}}{thecontentsofEPCnL,loadedintotheCCAPnL}}{Inthisway,canrealizeupdatePWMwithoutinterferenceTomakeCCAPMnPWMmode,modulecanPWMnandECOMnbitsoftheregistertobuybits

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芯片STC12C5204AD外文资料(IO口分配)

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