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1、二、英文原文MicrocontrollerUnitFirst,thedevelopmentofsimulatorThroughoutnearlytwodecadesofnationaldevelopmentprocessofsimulationtechnology,accordingtosimulatortechnologytobeusedtodividethedomesticaboutthedesignofsimulatorscanbedividedintothefollowingperiods:(1)thelate70si
2、nthemid-80Thetechnologyduringthisperiodwasmainlythedevelopmentofsimulationsystems,nowisnothightechnology,theuserrequestisnothigh.(2)thelate80'sduringthelate-90ThemainuseofthisperiodwithanemulationfunctionWinbondchipproduction,thetechnologyiscalledBondout.Usingthisch
3、iptogreatlysimplifythedesignofemulator,sothestandardofdomesticemulatorwithalargeincreasecanbelargelyoccupiedbytheuserresources.Simulationperformanceisduetotheincreaseindomesticproductionintheemulatornearly10yearsnoprogresshasbeenproducedusingthismodel.Althoughindivi
4、dualcompanieshavealsotriedothertechniquestoimprovethesimulationofthestandard,forexample,HOOKStechnology,butbecauseoftheirtechnicallimitationsdidnotsucceed.InsteadabroadearliersimulatortechnologyusedHOOKS,HOOKSattheinitialstageduetothecomplexityofthetechnologyitself,
5、simulationperformanceandpriceasthedomesticuseofthesimulatorBondout.(3)After2000yearChinain2000emulatorperiodchangesinthemarket,thelargest,themoststrikingchangeistheWinbondW78958chipsimulationoftheproduction.WinbondW78958chipduringthedesignstage,theinternalfunctionso
6、fthesimulationonlytotheproductionsimulatortosimulatormanufacturersinordertobetterpromotetheW78958.Afterseveralyearsofchange,however,W78958simulatorevolvedintotheuseofasimulationoftheASICratherthanusingthestandardchip,thescopeofuseislimitedtodomesticand20,000ayearles
7、sthantheamountthecompanyalsocontributedtotheWinbondAfterenteringin2002announcedthatitwouldstopproductionofthechip.W78958production,thedomesticmanufacturerssimulatorinaveryembarrassingsituation.W78958useathomeasaresultofnearly10years,thedomesticuserbaseisverylarge,th
8、eseuserswillnotbeabletoreceivecontinuedsupport,especiallymaintenance.Inaddition,thedomesticfocusintheW78958onthetechnicalworkdonecannotber
