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首页 ISE_UCF约束文件教程

ISE_UCF约束文件教程.pdf

ISE_UCF约束文件教程

kyriosoul
2012-04-13 0人阅读 举报 0 0 暂无简介

简介:本文档为《ISE_UCF约束文件教程pdf》,可适用于高等教育领域

ConstraintsGuideUG(v)December,XilinxTrademarksandCopyrightInformationXilinxisdisclosingthisuserguide,manual,releasenote,andorspecification(the“Documentation”)toyousolelyforuseinthedevelopmentofdesignstooperatewithXilinxhardwaredevicesYoumaynotreproduce,distribute,republish,download,display,post,ortransmittheDocumentationinanyformorbyanymeansincluding,butnotlimitedto,electronic,mechanical,photocopying,recording,orotherwise,withoutthepriorwrittenconsentofXilinxXilinxexpresslydisclaimsanyliabilityarisingoutofyouruseoftheDocumentationXilinxreservestheright,atitssolediscretion,tochangetheDocumentationwithoutnoticeatanytimeXilinxassumesnoobligationtocorrectanyerrorscontainedintheDocumentation,ortoadviseyouofanycorrectionsorupdatesXilinxexpresslydisclaimsanyliabilityinconnectionwithtechnicalsupportorassistancethatmaybeprovidedtoyouinconnectionwiththeInformationTHEDOCUMENTATIONISDISCLOSEDTOYOU“ASIS”WITHNOWARRANTYOFANYKINDXILINXMAKESNOOTHERWARRANTIES,WHETHEREXPRESS,IMPLIED,ORSTATUTORY,REGARDINGTHEDOCUMENTATION,INCLUDINGANYWARRANTIESOFMERCHANTABILITY,FITNESSFORAPARTICULARPURPOSE,ORNONINFRINGEMENTOFTHIRDPARTYRIGHTSINNOEVENTWILLXILINXBELIABLEFORANYCONSEQUENTIAL,INDIRECT,EXEMPLARY,SPECIAL,ORINCIDENTALDAMAGES,INCLUDINGANYLOSSOFDATAORLOSTPROFITS,ARISINGFROMYOURUSEOFTHEDOCUMENTATION©CopyrightXilinxIncAllRightsReservedXILINX,theXilinxlogo,theBrandWindowandotherdesignatedbrandsincludedhereinaretrademarksofXilinx,IncAllothertrademarksarethepropertyoftheirrespectiveownersThePowerPCnameandlogoareregisteredtrademarksofIBMCorp,andusedunderlicenseAllothertrademarksarethepropertyoftheirrespectiveownersConstraintsGuidewwwxilinxcomUG(v)December,TableofContentsXilinxTrademarksandCopyrightInformationChapterAboutThisGuideGuideContentsWhat’sNewinthisReleaseAdditionalResourcesConventionsTypographicalOnlineDocumentChapterArchitectureSupportConstraintsbyArchitecturesChapterConstraintTypesAttributesandConstraintsAttributesImplementationConstraintsCPLDFitterGroupingConstraintsforTimingUsingPredefinedGroupsPredefinedGroupExamplesBRAMSPORTAandBRAMSPORTBExamplesLogicalConstraintsPhysicalConstraintsMappingDirectivesPlacementConstraintsRelativeLocation(RLOC)ConstraintsPlacementConstraintsRoutingDirectivesSynthesisConstraintsTimingConstraintsXSTTimingConstraintsCommandLineSwitchConstraintsFileUCFTimingConstraintSupportFromToOFFSETINOFFSETOUTTIGTIMEGRPTNMTNMNetTimingModelPriorityTimingandGroupingConstraintsConfigurationConstraintsChapterEntryStrategiesforXilinxConstraintsConstraintsEntryMethodsConstraintsEntryTableSchematicDesignVHDLVerilogVerilogLimitationsVerilogMetaCommentsUCFUCFFlowManualEntryofTimingConstraintsConstraintConflictsinMultipleUCFFilesConstraintsGuideUG(v)December,wwwxilinxcomUCFandNCFFileSyntaxGeneralRulesforUCFandNCFConflictinConstraintsSyntaxSpecifyingAttributesforTIMEGRPandTIMESPECUsingReservedWordsWildcardsTraversingHierarchiesEnteringMultipleConstraintsFileNameInstancesandBlocksPCFNCFConstraintsEditorInputOutputStartingConstraintsEditorFromProjectNavigatorAsaStandaloneFromtheCommandLineWithNoDataLoadedWiththeNGDFileLoadedWiththeNGDFileandtheUCFFileLoadedAsaBackgroundProcessProjectNavigatorPlanAheadAssigningPlacementConstraintsDefiningIOPinConfigurationsFloorplanningandPlacementConstraintsPACEPartialDesignPinPreassignmentFPGAEditorLockedNetsandComponentsInteractionBetweenConstraintsXCFConstraintsPriorityFilePrioritiesTimingSpecificationPrioritiesOFFSETPrioritiesMAXSKEWandMAXDELAYPrioritesConstraintsPriorityExceptionsConstraintSetInteractionChapterTimingConstraintStrategiesBasicConstraintsMethodologyInputTimingConstraintsOverviewSystemSynchronousInputsSourceSynchronousInputsRegistertoRegisterTimingConstraintsOverviewAutomaticallyRelatedDCMPLLMMCMClocks:ManuallyRelatedClockDomainsAsynchronousClockDomainsOutputTimingConstraintsOverviewSystemSynchronousOutputSourceSynchronousOutputsExceptionTimingConstraintsOverviewFalsePathsConstraintsGuidewwwxilinxcomUG(v)December,MultiCyclePathsChapterXilinxConstraintsConstraintInformationAlphabetizedListofXilinxConstraintsAREAGROUP(AreaGroup)AREAGROUPArchitectureSupportAREAGROUPApplicableElementsAREAGROUPPropagationRulesAREAGROUPSyntaxDefiningFromTimingGroupsDefiningfromAreaGroups

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