集成电路设计与应用综述Overview of integrated circuit design and Application.docx
- 文档编号:6413354
- 上传时间:2023-01-06
- 格式:DOCX
- 页数:5
- 大小:20.26KB
集成电路设计与应用综述Overview of integrated circuit design and Application.docx
《集成电路设计与应用综述Overview of integrated circuit design and Application.docx》由会员分享,可在线阅读,更多相关《集成电路设计与应用综述Overview of integrated circuit design and Application.docx(5页珍藏版)》请在冰豆网上搜索。
集成电路设计与应用综述OverviewofintegratedcircuitdesignandApplication
集成电路设计与应用综述(OverviewofintegratedcircuitdesignandApplication)
Abstract:
inthedesignofSOCintegratedcomplexIPmoduleandembeddedsoftware,ICdesignmethodbasedonfunctiondesignbasedontraditionalhasbeenunabletoadapttothenewdesignrequirements,ICdesignmethodsneedtochangefromthetraditionaldesignprocess,functiontransformationbasedonfunctiontoassemblenewprocessbased.ThekeyelementsofSOCdesignincludein-depthsystemleveldesignandanalysis,collaborativedesignandverificationofhardwareandsoftware,completeverificationenvironment,andexternaldesignconsultingservices.TheeraofSOCdesigniscoming,anditwillbringexcitingopportunitiesandchallenges!
Keywords:
systemchipSOC,designmethod,functionalassembly,hardwareandsoftwarecodesign,systemverificationsystem(System-On-a-Chip)whiletheSOCchiphasbecomethefocusoftheICindustry,butitsbasicconceptisnotnew.Since70s,withthecontinuousdevelopmentofsemiconductorandelectronicdesignautomationtechnology,thefunctionofintegrationonasinglechiphasbeenincreasing.Theprogressofsemiconductortechnologyhasimprovedthetransistorintegrationofthechip,andatthesametime,italsobringsnewchallengestothedesigners.Thepresentsituationisthatthenumberoftransistorsavailableonasinglechiphasexceededtherequirementsofmostelectronicsystems,andhowtoexploitthesealmostunlimitedcomputingpowerhasbecomeamajorchallenge.AnydesignofanelectronicsystemalmostalwaysusesomeexistingIPmodules,suchasmicroprocessor,memory,DSPandsoon;comparedwithtraditionalIC,thedesignofembeddedsoftwarehasbeenintegratedintothedesignprocessinSOC.TraditionalICdesignmethodsfocusonhowtocreateacompletelynewdesignandperformeffectivevalidation.ComplexIPmodules,embeddedsoftware,andtheever-increasingnumberoftransistorshavebecomeincreasinglyheavyburdensoftraditionalmethods.TomeetthechallengesofSOCdesign,theremustbefundamentalchangesintheICdesignapproach.ThefocusofSOCdesignhaschanged,notthedesignofanewfunction,buthowtoevaluate,validateandintegratemultipleexistingsoftwareandhardwaremodules.ThedesignmethodofSOCwillbebasedontheassembly,formeditsowndistinctivecharacteristics,includingsystemleveldesign,morein-depthhardwareparalleldesignandverification,validation,atalllevelsofthedesignprocessandtherationaluseofexternaldesignconsultingservicesandsoon.SOC'salmostunlimitedtransistorintegrationistriggeringarevolutioninthedesignofelectronicsystems,andtheresultmustbetheriseinSOCdesignefficiencyandthegeneralenhancementofelectronicsystemfunctionality.Today,SOCisalmostexclusivelydevelopedbylargecompanies,becauseonlytheyhavehugeengineeringresourcesandsufficientdesignfunding.UsethereasonsforthisistheessenceofmonopolyinSOCdesignisstillcannotadapttothetraditionaldesignmethodsandtoolsneeded,manufacturersmustuseexistingtoolstoputtogetheradesignprocess,andtheninvestalotofmanpowerandresourcestosolvedesignproblems.ItisestimatedthatonesuchSOCdesignprojectneedstobeinvestedmorethan$15million.InordertomakeSOCmorewidelyused,thedesignmethodmustberevolutionary.Thegrowthanddevelopmentofthemainmotiveforcesoftherevolutionatpresentfromthetelecommunicationmarket,thefirstuseofSOCismainlyalargetelecommunicationscompany,alongwiththedevelopmentofthetelecommunicationindustry,theapplicationofSOCexpansion,especiallyinthethirdgenerationmobilecommunication(3G)projectisagreatsuccess.FromthedesignpracticeofSOC,itisrecognizedthattherevolutionindesignmethodsrequiresatransformation-fromtraditionalprocessesbasedonfunctionaldesigntonewprocessesbasedonfunctionalassembly.KeyelementsofSOCdesign:
systemleveldesignandmorein-depthanalysis;collaborativedesignandverificationtoolstouseconsistenthardware;acompleteverificationenvironment,itcancompletethelogicsimulationtoolsandothertools(suchashardwareandsoftwarecollaborativetools)connection;4)tomakeupforthedeficiencyofSOCdesignatthisstagetheuseofexternalsystemdesignconsultingservices.ThebigchallengeisshowninFigure1,figure1:
traditionalICandSOC,comparedtopastICproducts,arenowquitedifferentfromSOC.DesignandverificationofembeddedsoftwareandhardwaredevelopmenthasbeenintegratedintheSOCmodulewillbeveryimportant,thetraditionaldesignmethodwhichisclearlyinadequate,especiallyinsystemverification,designresources,itmayconsume60-80%.Inordertoaccomplishsystemfunctionality,SOCdesignmustrelyonexistingIPmodules.Ideally,offtheshelfIPshouldbeabletosubstantiallyincreasetheproductivityofdesigners,butinrealmarkets,veryfewIPmodulescanbereusedimmediately.ManyIPweredesignedforspecificapplicationsatthebeginningofthedesign,solittleconsiderationwasgiventotheuseofexoticcircuits.IftheSOCdesignerwantstotakeadvantageoftheseIP,
Effortsmustbemadetomodifythemsothattheycanmeetthefunctionalneedsorintegrationneedsofthesystem.However,suchmodificationswoulddelaydesignprogress,makeverificationmorecomplex,andeventuallyevenIPlosetheefficiencyadvantageitshouldhaveprovided.OneormoremicroprocessorsareintroducedintotheSOCsystem,whichisafactorthatcomplicatesdesign.Thepowerfulfunctionandhighspeedcomputingmodernprocessormakessimulationintegrationisverycomplex;especiallywhenmultipleprocessorsmustbeusedinthesystem,thecomplexitywillbeincreasedgreatly,butitisamodernsystemincommonsituations.Undersuchaheavyburden,itwillbedifficulttocarryouttraditionalgateandRTLlevelverification.AftertheprocessorbecomestheSOCcomponent,theembeddedsoftwareisboundtoentertheSOCdesignprocess,butthisnewcomponentisnotsoeasytojoin.Becausethereisnoembeddedsoftwaresolutionforsiliconimplementationinthemarket,manyvendorscanonlyusetheboardlevelembeddedsoftwaredevelopmenttoolsinSOCdevelopment.Unfortunately,boardlevelsolutionsarenotsuitableforSOC.Themostprominentproblemisthesoftwaredebugging,boardleveldevelopmenttoolsforsoftwaredebuggingintheprototypesystemdevelopmentiscompleted,inSOCdesign,thisisabsolutelyunacceptable:
inordertosolvetheproblemofsoftwaretohardwaredesign,thisapproachisnotonlycostly,butalsowastealotoftime.Paralleldevelopmenttoolsforhardwareandsoftwarecansolvethisproblemandimprovetheabilityofdesignverification.However,theuseofsuchtoolsnotonlyrequireschangesindesignmethods,butalsorequiresacertainamountofpreparationtimeandrelatedknowledgeandexperience.ManyproblemswillarisewhenapplyingtraditionalfunctionalverificationmethodstoSOCdesign.Therapidincreaseinthenumberofgates,thecomplexityofdifferentsourcesoffunctionalmodules,andthevarietyofsimulationmodelsmaketraditionalsimulationmethodsdifficult.Inspiteofthis,manydesignersstillrelyonsimulationtechnologyofRTLgatelevelis,therearetwokindsofreasons,ortheydonotknowthedesignmethodmoreefficient,ortheydonotbelievethesemethods.ForcomplexSOCintegratesmultipleprocessorsandothercomponents,analysisandoptimizationofthewholesystemwillcausethedesignbehindscheduleusingtraditionalsimulationtechnology,designtimeandevenconsume60-80%,asisfoundinthisphaseoftheproblemneedtoredesigntheentireprocesstosolve.However,ifintheearlystagesofdesign,throughsomesimulationmethods,suchasbehaviorallevelClanguagemodelandHDLmodelsimulation,toimprovethecorrectnessofthepreliminarydesign,canreducethenumberofiterationsinthedesignstage.Thenewdesignmethodbasedonassembly,intheSOCdesign,functionalassemblyisgraduallyreplacingfunctionaldesign,andbecomethemainstreamdesignmethod.AsshowninFigure2,thetraditionaldesignapproach,whetheritisHDLorschematicdesign,focusesonthedesignofnewcircuitstoachievesystemfunctions.Butgradually,ICcontainsavarietyofIPmodule(DSP,microprocessor,memory,etc.)forthiscircuit,thefocusofconcern:
theengineershouldchoosewhichfunctionmodule,functionmodule,howtohowtousethehardwareandsoftwarefunction,howtocarryoutthemoduleinterconnection,howtocarryonthesystemverificationandsoon.Bycomparison,methodsbasedonfunctionalassemblyorreusebaseddesignarebettersuitedtothetransferofthisfocusofattention,thusmeetingthedesignrequirementsofSOC.TherearefourmaindifferencesbetweentheSOCdesignmethodandtraditionaldesignmethods:
first,thesystemdesignstagemorestringentrequirements:
functionaldivisionofhardwareandsoftwaredevelopersmustbein-depthanalysisofhardwareandsoftware,thereasonableselectionoftheIPmoduleandarrangevariousstagesofdesigninterfacecarefully;second,thedesignofembeddedsoftwarewithSOCasthecenter;third,verifythemulti-levelapproach:
makefulluseofsimulationtechnologyintheearlystageofthedesign,thehardwareandsoftwarefortheconcurrentdesignandverification,analysisanddebuggingofthepostdesignverificationdependstoaminimum;finally,theIPmodule,EDAtoolormodeltechnologyarestillincontinuousimprovementstage,throughconsultingprofessionalmanufacturersservicetomakeupaveryimportantfactorintooldesignexperienceanddesignmethodin
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 集成电路设计与应用综述Overview of integrated circuit design and Application 集成电路设计 应用 综述 Overview
链接地址:https://www.bdocx.com/doc/6413354.html