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ICDesignFlow Overview ¾Introduction ¾Flow&Tools ¾Task ¾Inputandoutputfiles ¾Summary Introduction ASIC与SoC设计流程 DesignAbstractionLevels FLOW&TOOLS ¾ReferenceFlow ¾SynopsysTools ChipDesignflow---Synthesis ¾Tool DC(DesignCompiler)/DC-T ¾Input RTLcode ¾Output: Gatelevelnetlist ¾Foundryofferings: stdcelllibrary wireloadmodel RTLcode&Gate-levelNetlist DCFlow ChipDesignflow---Pre-layout Simulation/STA ¾Tool VCSPrimetimeSuite ¾Input (Prelayout)Gatelevelnetlist ¾Output: Meettimingornot? PassSTAornot? ¾Foundryofferings: timingkitinLibrary VCS-VerologCompiledSimulator ¾Forallphasesofdesignverification ¾Behavioral,RTL,debug,gate,fulltimingSDF sign-off ¾Compilation vcssource_files–R ¾Simulation ./simv Anexample--digital PrimeTime----STAanddelay calculation ¾full-chip,gate-levelstatictiminganalysistool ¾Integratedanalysisflowforimprovedturn-around time ¾Foundationforconcurrentanalysis ¾Singleruntimeenvironmentforeliminatingtools ChipDesignFlow---Floorplan/P&R ¾Tool: ICCompiler ¾Input: Gatelevelnetlist ¾Output: Layout ¾Foundryofferings: LEForMilkywayFRAM Timing/Electricalmodellibrary P&RRCXtechnologyfiles Floorplan ¾ReadingtheI/OConstraints ¾DefiningtheCoreandPlacingtheI/OPads ¾CreatingRectilinearCoreAreas ¾WritingI/OConstraintInformation ¾ReadingSynopsysDesignConstraints ¾AddingCellRows ¾SavingtheFloorplanInformation ¾WritingFloorplanPhysicalConstraintsforDesign CompilerTopographicalMode Placement CTS Routing ¾PrerequisitesforRouting ¾CheckingRoutability ¾SettingUpforRouting ¾RoutingCriticalNets ¾RoutingSignalNets ¾ShieldingNets ¾PerformingECORouting ¾ReportingCellPlacementandRoutingStatistics ¾VerifyingtheRoutedDesign ¾RoutingNetsandBusesintheGUI ¾PostrouteRCExtraction After routing ChipDesignFlow---RCX ¾Tool: Star-RCXT ¾Input: Layout ¾Output: SPEForDSPFgatelevelnetlistwithparasitic ¾Foundryoffering: RCXtechnologyfile ChipDesignFlow---DRC/LVS ¾DRC/LVSINPUT/OUTPUTFILE ChipDesignFlow---DRC/LVS ¾DRC–DesignRuleCheck Pre-Maskgenerationrepairs ¾LVS-