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Xilinx 8.2i manual Design Flow Overview, 2Xilinx Software Design Flow FPGAs

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Design Flow Overview

The following figure shows the Xilinx software flow chart for FPGA designs.

	CORE Generator	Schematic	Synthesis	HDL		Simulation	Testbench
		Libraries	Libraries			Libraries	Stimulus
	Symbol
	NGC	Schematic Capture	Synthesis			Simulation
		EDIF 2 0 0 &	NGC		V &	VHD &	EDIF
		Constraints/NCF	(XST Netlist)		SDF 2.1	SDF 2.1	2 0 0
UCF	NGDBuild	NGDBuild	NGDBuild			NetGen

Constraints Editor	NGD
Floorplanner	MAP	NGM & PCF

NetGen

TRACE &

Timing Analyzer

NCD & PCF

PAR

NCD

BitGen

BIT

PROMGen

iMPACT	X10293

Figure 2-2:Xilinx Software Design Flow (FPGAs)

Development System Reference Guide

www.xilinx.com

Page 31

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Xilinx 8.2i manual Design Flow Overview, 2Xilinx Software Design Flow FPGAs

Contents

Development System Reference Guide Development System Reference Guide About This Guide Guide ContentsPreface About This Guide Conventions Additional ResourcesTypographical Loc1 loc2 ... locn Online DocumentPreface About This Guide Convention Meaning or Use Example Allow block blocknameTable of Contents Tcl PARTGen NGDBuild Logical Design Rule CheckMAP PAR Physical Design Rule CheckDevelopment System Reference Guide PIN2UCF XPowerTrace Output Files TraceBitGen SpeedprintBSDLAnno IBISWriter PROMGenTsim CPLDfitTAEngine NetGen Hprep6Development System Reference Guide Xflow EDIF2NGD, and NGDBuild Data2MEM1Command Line Programs in the Design Flow Design Flow Step Command Line Program OverviewIntroduction Introduction Command Line SyntaxCommand Line Options Execute Commands FileSymbol Description Command Line OptionsHelp Programname -h filename Introduction Symbol DescriptionIntstyle Integration Style Programname -harchitecturenamePart Number 2Part Number Examples SpecificationIntroduction 2Part Number Examples Specification Invoking Command Line ProgramsDesign Flow Overview Design FlowXilinx Design Flow Design Flow2Xilinx Software Design Flow FPGAs Design Flow Overview3Xilinx Software Design Flow CPLDs Hierarchical Design Design Entry and SynthesisDesign Entry and Synthesis Library Elements Schematic Entry OverviewCore Generator Tool FPGAs Only Mapping Constraints FPGAs Only HDL Entry and SynthesisFunctional Simulation ConstraintsNetlist Translation Programs Block PlacementTiming Specifications Design Implementation5Design Implementation Flow FPGAs Design Implementation6Design Implementation Flow CPLDs Placing and Routing FPGAs Only Mapping FPGAs OnlyBitstream Generation FPGAs Only 1Verification Tools Verification Type Design Verification7Three Verification Methods of the Design Flow FPGAs Design VerificationBack-Annotation Simulation9Back-Annotation Flow for FPGAs NetGen Schematic-Based SimulationTiming Simulation HDL-Based Simulation2Five Simulation Points in HDL Design Flow UniSim SimPrim 11Simulation Points for HDL DesignsStatic Timing Analysis FPGAs Only Probe In-Circuit VerificationDesign Rule Checker FPGAs Only Xilinx Design Download CablesGlobal Clock Distribution 3Global Clock Resources Fpga Family Number Destination PinsFpga Design Tips Design Size and Performance12 Gated Clock Data Feedback and Clock EnableCounters 13Synchronous Design Using Data FeedbackQ0. . . .Q7 Q8. . . .Q15 Other Synchronous Design ConsiderationsQ0. . . .Q7Q8. . . .Q15 Tcl Overview TclXilinx Tcl Shell Accessing HelpTcl Fundamentals Tcl Fundamentals1Xilinx Tcl Commands for General Usage Subcommands Xilinx Tcl CommandsXilinx Namespace Project create and manage projects 2Xilinx Tcl Commands for Advanced Scripting Subcommands Tcl Commands for General UsagePartition support design preservation Partition delete /stopwatch/Instdcm1 Tcl Commands for General UsageDelete delete a partition Get get partition propertiesPartition get /stopwatch/Instdcm1 preserve New create a new partitionPartition new /stopwatch/Instdcm1 Rerun force partition synthesis and implementation Properties list available partition propertiesPartition properties Set set partition preserve property Run run process task Process run and manage project processes4Process Tasks Project clean Clean remove system-generated project filesProject create and manage projects Project close Close close the ISE projectGet get project properties Getprocesses get project processesProject new watchver.ise New create a new ISE projectOpen open an ISE project Project getprocesses -instance Instdcm1Set set project properties, values, and options Properties list project propertiesProject properties -process all Project set device xc2vp2 Set device set deviceSet family set device family Project set Map Effort Level highProject set package fg256 Set package set device packageSet speed set device speed Project set family Virtex2pProject set speed Timinganalysis generate timing analysis reportsSet top set the top-level module/entity Delete delete timing analysisDisablecpt disable components for path tracing control Disableconstraints disable timing constraintsNs High 50.00000% Enablecpt enable components for path tracing controlTiminganalysis enableconstraints Stopwatchtiming TSclk=PERIOD TIMEGROUP\sclk\Get get analysis property Timinganalysis enablecpt stopwatchtimingRegsrclk ureg1 ureg2 ureg3 Ascii New new timing analysis Saveas save analysis report Reset reset path filters and constraintsTiminganalysis reset stopwatchtiming Run run analysisAnalysisspeed Set set analysis propertiesSetconstraint set constraint for custom analysis Timinganalysis set stopwatchtimingTiminganalysis setconstraint stopwatchtiming Setendpoints set source and destination endpointsPeriod 13 sclk Exclude uregnet1 uregnet2 uregnet3 Setquery set up net or timegroup reportSetfilter set filter for analysis Timinganalysis setfilter stopwatchtiming netsExample Showsettings generate settings reportXfile manage project files Add add file to projectXfile get timestamp stopwatch.vhd Get get project file propertiesRemove remove file from project Xfile add *.vhd /mysource/mysubdir timing.ucfXfile remove stopwatch.vhd Tcl Commands for Advanced ScriptingCollection create and manage a collection Appendto add objects to a collectionSet colVar2 $colVar1 Tcl Commands for Advanced ScriptingCopy copy a collection Set colVar1 search * -type instanceCollection equal $colVar1 $colVar2 Equal compare two collectionsSet colVar2 collection copy $colVar1 Set colVar2 search /top/T* -type instanceGet get collection property Foreach iterate over elements in a collectionObject name $item Index extract a collection objectProperties list available collection properties Set item collection index $colVarSet set the property for all collections Removefrom remove objects from a collectionCollection properties Collection sizeof $colVar Object get object informationSizeof show the number of objects in a collection Collection set displaytype trueObject properties $obj foreach prop $objProps Get get object propertiesName name of the object Collection foreach obj $colVar set objPropsObject name collection index $colVar Properties list object propertiesSet colVar search * -type partition Type type of object Search search and return matching objectsObject type collection index $colVar Option Name Synthesis Tool Project Properties and OptionsSearch /stopwatch -type instance 6Project Properties Property Name DescriptionProject Properties and Options NGDBuild Options Option Name Implementation Tool Option Name Implementation Tool Tcl 10 PAR Options Sample Tcl Script for General Usage Example Tcl ScriptsExample Tcl Scripts Tcl Sample Tcl Script for Advanced Scripting 100 Partgen options PARTGenPARTGen Overview PARTGen SyntaxArch Print Information for Specified Architecture PARTGen Input FilesPARTGen Output Files PARTGen OptionsPARTGen Options Print a List of Devices, Packages, and Speeds PARTGen Options 2s400e Xcv400 Device V400bg432 Part Creates Package file and Partlist FilesNopkgfile No Package File PnameCreates Package and Partlist Files Partlist FilePart architecture family partname diename packagefilename HeaderDevice Attributes Partlist FileSelect RAM PKG File PKG FileDone Logical DRC Overview Logical Design Rule CheckPad Check Logical DRC ChecksBlock Check Net CheckName Check Clock Buffer CheckLogical DRC Checks Primitive Pin Check 1Checked Primitive Pins NGD Primitive Pins CheckedNGDBuild Overview NGDBuild1NGDBuild Design Flow Converting a Netlist to an NGD FileNgdbuild options designname ngdfile.ngd NGDBuild SyntaxNGDBuild Input Files NGDBuild Syntax120 NGDBuild Options Add PADs to Top-Level Port SignalsNGDBuild Output Files NGDBuild Intermediate FilesIgnore UCF File Aul Allow Unmatched LOCsBm Specify BMM Files Dd Destination DirectorySynopsys InsertkeephierarchyLibraries to Search NGDBuild OptionsUsepimmodulename1 -usepimmodulename2 Modular assemble Module AssemblyModular initial Initial Budgeting of Modular Design Modular assemble -pimpath pimdirectorypathPimcreate pimdirectory -ncd designnamerouted.ncd Modular module Active Module ImplementationNt Netlist Translation Type Modular module -active modulenameSd Search Specified Directory Ignore LOC ConstraintsAllow Unexpanded Blocks Uc ucffile.ucf Uc User Constraints FileUr Read User Rules File Verbose Report All Messages128 MAP Overview MAPMap options infile.ngd pcffile.pcf MAP SyntaxMAP Output Files MAP Input FilesMAP Input Files 1Map Options and Architectures MAP OptionsCpackfactor Bp Map Slice LogicPack CLBs MAP Options 1Map Options and ArchitecturesCm area speed balanced Cm Cover ModeDetail Write Out Detailed MAP Report Equivalentregisterremoval Remove Redundant RegistersGlobalopt Global Optimization Gm Guide ModeGm incremental Guide Mode incremental Gf Guide NCD FileMap to Input Functions Ignorekeephierarchy Ignore Keephierarchy PropertiesIr Do Not Use RLOCs to Generate RPMs Ise ISE Project FileOutput File Name No logic replicationOlstdmedhigh Ol Overall Effort LevelRetiming Register Retiming During Global Optimization Pr Pack Registers in I/ONo Register Ordering Registerduplication Duplicate RegistersTx Transform Buses Timing Timing-Driven Packing and PlacementTx on off aggressive limit MAP Process MAP ProcessDo Not Remove Unused Logic Xe Extra Effort LevelRegister Ordering Data01 Addr02 Atod03 Dtoa04 Register Ordering3Guided Mapping Guided MappingSimulating Map Results Simulating Map Results4Logical Circuit Representation MAP Report MRP File MAP Report MRP File148 Development System Reference Guide 149 Type Block GND Xstgnd IOB 152 Halting MAP Halting MAP154 DRC Overview Physical Design Rule CheckDRC Options DRC SyntaxDRC Input File DRC Output FileReport Incomplete Programming DRC ChecksDRC Checks DRC Errors and Warnings Place and Route Overview PARPAR Flow Timing-driven PAR PAR ProcessPlacing RoutingPar input.ncd output.ncd Command Line ExamplesPar -k previous.ncd reentrant.ncd pref.pcf Guided PAR Guided PARPCI Cores PAR Syntax PAR SyntaxPAR Input Files PAR Output FilesOl value for the router 1Effort Level Options Function Range DefaultGeneral Options Function Range Default PAR OptionsGuide Options Function Range Default PAR Options 2General Options Function Range DefaultExistingfile Detailed Listing of Options Execute Commands FileGf Guide NCD File PAR Options Gm Guide ModeIntstyle Integration Style Re-Entrant RoutingOl Overall Effort Level Multi-Tasking ModeNumber of PAR Iterations Nopad No PadNo Routing No PlacementPower Power Aware PAR Pl Placer Effort LevelOverwrite Existing Files Number of Results to SaveStarting Placer Cost Table Ub Use Bonded I/OsPAR Reports Performance Evaluation ModePAR Reports Xe Extra Effort LevelPlace and Route Report File Development System Reference Guide 175 Ing score in parenthesis Development System Reference Guide 177 Placer effort levelrouter effort levelcost table number Multi Pass Place and Route MpprPar -n 3 -pl high -rl std address.ncd output.dir Multi Pass Place and Route Mppr Select I/O Utilization and Usage SummaryImporting the PAD File Information Guide ReportingXplorer Best Performance ModeXplorer Syntax Timing Closure ModeXplorer 5Xplorer Options Function Xplorer Input FilesXplorer Output Files Xplorer OptionsXplorer 5Xplorer Options Function Xplorer Report184 ReportGen Output Files ReportGenReportGen Syntax ReportGen Input FilesPadfmt padcsvtxt ReportGen OptionsOption Usage Function IsexflowsilentPar -m nodefilename -ol high -n 10 mydesign.ncd output.dir Turns Engine PAR Multi-Tasking OptionTurns Engine Overview Turns Engine PAR Multi-Tasking OptionTurns Engine Input Files Turns Engine SyntaxLimitations Turns Engine Output FilesSystem Requirements Turns Engine Environment Variables Rsh machinename DebuggingScreen Output Node Status JOB Time Halting PAR Halting PAR 196 XPower Overview XPowerCpld Designs XPower SyntaxFiles Used by XPower Fpga DesignsUsing XPower Using XPowerVCD Data Entry Ls List Supported Devices Rename Power ReportOther Methods of Data Entry LimitWx Write XML File Specify Settings XML Input FileSpecify VCD file Tb Turn On Time Based ReportingPower Reports Command Line ExamplesStandard Reports Detailed Reports Power ReportsAdvanced Reports 204 PIN2UCF Overview PIN2UCFPIN2UCF Flow PIN2UCF Syntax PIN2UCF SyntaxPIN2UCF Input Files PIN2UCF Output FilesOutfile.ucf PIN2UCF OptionsPIN2UCF Scenarios Write to a Report FileExisting Pinlock section. 210 Trace Overview TraceTrce -runmacro.xtm design.ncd constraint.pcf Trace SyntaxTrace Input Files Trce options design.ncd constraint.pcfInput files to Trace Trace Output FilesTrace Output Files Fastpaths Report Fastest Paths Generate an Error ReportTrace Options Advanced AnalysisTrace Options Nodatasheet No Data SheetLimit Timing Report Output Timing Report File NameSkew Run Run Timing Analyzer MacroChange Speed Skew Analyze Clock Skew for All ClocksUlimit Stamp Generates Stamp timing model filesReport Uncovered Paths Stampstampfile design.ncdVlimit Trace Command Line ExamplesGenerate a Verbose Report Xml XML Output File NameTrace Reports Trace ReportsNet Skew Constraints Net Delay ConstraintsPath Delay Constraints Timing Verification with Trace1Path Delay Constraint Terminology Definition Clock Skew and Setup Checking2Clock Skew Example 2Clock Skew and Setup Checking Terminology Terms Definition3Clock Passing Through Multiple Buffers Reporting with Trace 5Error reporting for failed timing constraints Data Sheet Report Development System Reference Guide 227 BSLOT0 D0S Report Legend Guaranteed Setup and Hold ReportingHold Times Setup TimesTrce -o summary.twr ramb16s1.ncd Summary Report Without a Physical Constraints File SpecifiedTrce -o summary1.twr ramb16s1.ncd clkperiod.pcf Development System Reference Guide 233 Trce -e 3 ramb16s1.ncd clkperiod.pcf -o errorreport.twr Development System Reference Guide 235 236 Development System Reference Guide 237 BUFGMUX.I0 Offset Constraints Offset ConstraintsOffset in Header Offset in Constraint ExamplesOffset in Path Details Offset in Detailed Path Data Offset in Detail Path Clock Path Offset In with Phase Shifted ClockDevelopment System Reference Guide 243 Offset OUT Header Offset OUT Constraint ExamplesOffset OUT Detail Clock Path Offset OUT Path DetailsOffset OUT Detail Path Data Period Constraints Period ConstraintsPeriod Constraints Examples Period HeaderPeriod Path Period Path Details Period Constraint with Phase Period Path with Phase Minimum Period Statistics Halting TraceSpeedprint Overview SpeedprintMin Display Minimum Speed Data Specify TemperatureSpeedprint Syntax Speedprint OptionsSpeedprint Example Reports Speedprint Example CommandsSpeedprint Example Commands Command DescriptionLvttl Fast BitGen Overview BitGenOption Output File BitGen SyntaxLoutfilename.ll Moutfilename.msk Boutfilename.rbt BitGen Output Files BitGen Input FilesBitGen Input Files Create Rawbits File BitGen OptionsDo Not Run DRC Bd Update Block RamsSet Configuration Bitgen -goptionsetting design.ncd design.bit design.pcfCclkPin ActiveReconfigActivateGCLK BinaryCompress ConfigRateDCMShutdown DCIUpdateModeDebugBitstream DonePipe DisableBandgapDONEcycle DonePinGSRcycle DriveDoneEncrypt Gclkdel0, Gclkdel1, Gclkdel2, Gclkdel3Key0, Key1, Key2, Key3, Key4, Key5 GWEcycleGTScycle HswapenPinM0Pin KeyFileKeyseq0, Keyseq1, Keyseq2, Keyseq3, Keyseq4, Keyseq5 LCKcyclePartialGCLK M1PinM2Pin MatchcyclePersist PartialMask0, PartialMask1, PartialMask2PartialLeft PartialRightSecurity PowerdownPinProgPin ReadBackStartupClk SEURepairStartCBC StartKeyTmsPin TckPinTdiPin TdoPinUnusedPin No BIT FileUserID Overwrite Existing Output File Create a Logic Allocation FileGenerate a Mask File Create a Partial Bit File276 BSDLAnno Overview BSDLAnnoBSDLAnno Options BSDLAnno SyntaxBSDLAnno Input Files BSDLAnno Output FilesBSDLAnno File Composition BSDLAnno File CompositionEntity Declaration Generic ParameterPackage Pin-Mapping Logical Port DescriptionScan Port Identification USE StatementTAP Description Boundary Register Description Bsdl File Modifications for Single-Ended PinsExplanation BSDLAnno BSDLAnno version number Boundary Scan Behavior in Xilinx DevicesModifications to the Designwarning Section Header CommentsPROMGen Overview PROMGenPromgen options PROMGen SyntaxPROMGen Input Files PROMGen Output FilesPROMGen Options File1.bit file2.bit Add BIT FIlesProm Format Load Prom FileVer Version Prom SizeTemplate File Load UpwardBit Swapping in Prom Files Enable CompressionPROMGen Examples PROMGen Examples292 IBISWriter Overview IBISWriterIbiswriter options infile outfile.ibs IBISWriter SyntaxSet Reference Voltage IBISWriter Input FilesIBISWriter Output Files IBISWriter OptionsArchitecture Option Value Description Ml Multilingual SupportIBISWriter Options Pin Generate Package Parasitics298 CPLDfit Overview CPLDfitCPLDfit Input Files CPLDfit SyntaxCPLDfit Output Files CPLDfit Options Loc Keep Specified Location Constraints Inputs Number of Inputs to Use During OptimizationIostd Specify I/O Standard Keepio Prevent Optimization of Unused InputsNogtsopt Disable Global Output-Enable Optimization Nofbnand Disable Use of Foldback NandsNogclkopt Disable Global Clock Optimization Nogsropt Disable Global Set/Reset OptimizationPinfbk Use Pin Feedback Power Set Power ModeOptimize Optimize Logic for Density or Speed Specify Xilinx PartWysiwyg Do Not Perform Optimization Terminate Set to Termination ModeUnused Set Termination Mode of Unused I/Os Slew Set Slew Rate306 Tsim Syntax TsimTsim Input Files TAEngine Overview TAEngine1TAEngine Design Flow TAEngine SyntaxSpecify Output Filename TAEngine OptionsDetail Detail Report Iopath Trace Paths312 1Hprep6 Design Flow Hprep6Hprep6 Options Hprep6 SyntaxAutosig Automatically Generate Signature Tmv Specify Test Vector File Nopullup Disable PullupsSpecify Signature Value for Readback Produce ISC File316 NetGen Overview NetGen1NetGen Output File Types Input Design File NetGenNetGen Simulation Flow NetGen Simulation FlowNetGen Functional Simulation Flow NetGen Supported FlowsNgcbuildoptions toplevelnetlistfile outputngcfile NetGen Timing Simulation FlowSyntax for NetGen Functional Simulation Output files for NetGen Functional SimulationFpga Timing Simulation Syntax for NetGen Timing SimulationNetGen Timing Simulation Flow Output files for Cpld Timing Simulation Output files for Fpga Timing SimulationCpld Timing Simulation Input files for Cpld Timing SimulationOptions for NetGen Simulation Flow Mhf Multiple Hierarchical Files Insertppbuffers Insert Path Pulse BuffersModule Simulation of Active Module Sim Generate Simulation Netlist Ofmt Output FormatPcf PCF File Change SpeedInsertglbl Insert glbl.v Module Ti Top Instance NameTm Top Module Name Tp Bring Out Global 3-State Net as PortSdfpath Full Path to SDF File Ne No Name EscapingPf Generate PIN File Sdfanno Include $sdfannotateVHDL-Specific Options for Functional and Timing Simulation Xon truefalse NetGen Equivalence Checking FlowXon Select Output Behavior for Timing Violations NetGen Equivalence Checking FlowInput files for NetGen Equivalence Checking Syntax for NetGen Equivalence CheckingOptions for NetGen Equivalence Checking Flow Output files for NetGen Equivalence CheckingEcn Equivalence Checking Module Verification of Active Module Fn Control Flattening a NetlistNgm Design Correlation File NetGen Static Timing Analysis FlowNetGen Static Timing Analysis Flow Output files for Static Timing Analysis Input files for Static Timing AnalysisSyntax for NetGen Static Timing Analysis Aka Write Also-Known-As Names as Comments Options for NetGen Static Timing Analysis Flow336 Modulename .sim Modulename .ecn Modulename .sta Preserving and Writing Hierarchy FilesSta Generate Static Timing Analysis Netlist Preserving and Writing Hierarchy FilesTestbench File Dedicated Global Signals in Back-Annotation SimulationHierarchy Information File Global Signals in Vhdl Netlist Global Signals in Verilog NetlistDedicated Global Signals in Back-Annotation Simulation 340 Xflow Overview Xflow1XFLOW Design Flow Xflow SyntaxXflow Input Files Xflow Input FilesXflow Output Files 1XFLOW Output Files FPGAs and CPLDs Xflow Output Files2XFLOW Output Files FPGAs 3XFLOW Output Files CPLDs Assemble Module AssemblyXflow Flow Types Xflow Flow Types4Option Files for -assemble Flow Type Description Config Create a BIT File for FPGAsConfigoptionfile Ecn Create a File for Equivalence Checking6Option Files for -fit Flow Type Description Fit Fit a CpldFsim Create a File for Functional Simulation 5Option Files for -ecn Flow Type DescriptionImplement optionfile Implement Implement an Fpga7Option Files for -fsim Flow Type Xflow -p xc2v250fg256-5 -fsim genericverilog.opt testclk.vXflow -p xc2v250fg256-5 -initial budget.opt top.edf Initial Initial Budgeting of Modular DesignXflow Flow Types 8Option Files for -implement Flow Type Initial budget.optModuleoptionfile -activemodulename Module Active Module Implementation9Option Files for -module Flow Type 11Option Files for -sta Flow Type Description Mppr Multi-Pass Place and Route for FPGAsSta Create a File for Static Timing Analysis 10Option Files for -mppr Flow Type DescriptionSynthesis Types SynthSynthoptionfile Testclk.prj Tsim Create a File for Timing SimulationOption Files for -synth Flow Types 12Option Files for -synth Flow Type Description13Option Files for -tsim Flow Type Description Flow FilesFpga Flow File FormatReports Flag Enabled DisabledTriggers ExportsEnd Program programname User Command BlocksOption File Format Xflow Option FilesSpecify a Global Variable Xflow OptionsActive Active Module Ed Copy Files to Export DirectoryXflow -implement balanced.opt -o newname testclk.edf Norun Creates a Script File OnlyChange Output File Name OoutputfilenameRdreportdirectory Pd PIMs DirectoryRd Copy Report Files PdpimdirectoryRunning Smart Flow Using Xflow Flow Types in CombinationRunning Xflow Wd Specify a Working DirectoryUsing the Xilxflowpath Environment Variable Using the SCR, BAT, or TCL FileRunning Xflow 366 Data2MEM Overview Data2MEMExecutable and Linkable Format .elf files Data2MEM SyntaxData2MEM Input and Output Files Block RAM Memory Map .bmm filesVerilog .v files Debugging Information Format Dwarf .drf filesMemory .mem files Bit .bit filesUCF .ucf files 1Data2MEM Command Line Options DescriptionData2MEM Options Vhdl .vhd filesData2MEM Options 1Data2MEM Command Line Options Pp filename PartnameName Type Produced By Description Xilinx Development System FilesAppendix MOD Ascii Trace NKY TCL Ascii 378 EDIF2NGD EDIF2NGD, and NGDBuildEDIF2NGD Design Flow Edif2ngd options ediffile ngofile EDIF2NGD SyntaxEDIF2NGD Input Files EDIF2NGD Output FilesEDIF2NGD Options Add PADs to Top-Level Port SignalsAul Allow Unmatched LOCs Llibname Libraries to SearchPart Number Ignore LOC ConstraintsNGDBuild and the Netlist Readers NGDBuildNGDBuild Busnameindex DI3 Netlist Launcher NetlisterBus Matching Bus Naming ConventionsNetlist Launcher Netlister User Rules Format Netlist Launcher Rules FilesUser Rules File User Rules and System RulesDevelopment System Reference Guide 389 Value Types in Key Statements System Rules FileExample 1 Edfrule System Rule Rules File ExamplesExample 3 User Rule Example 2 User RuleExample 4 User Rule NGDBuild File Names and LocationsNGDBuild File Names and Locations 394 Abel GlossaryAsic Boundary scan BitstreamBlock BondedCAE BuftCmos CLBCompiler ConfigurationContention Combinatorial logicDangling net CpldDaisy chain Dangling busDSP DRCEdif EDAFdsd EpromFifo Fpga FmapGlobal 3-state net Global Set/Reset netGate array Global buffersIbuf HDLIFD IeeeJedec LSB MSB NGM NCDPAL PLD PIMRAM PromRPM ROMRTL Startup symbol SDF standard delay formatSet/reset SignalTCL Tsim TraceTTL Xtclsh WireVhdl Vital422