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- •Contents
- •Preface
- •Related Documents
- •Typographic and Syntax Conventions
- •Creating HDL Modules for CDBA Cellviews
- •Creating HDL Data as You Save CDBA Cellviews
- •Creating HDL Data from Pre-existing CDBA Cellviews
- •AMS Designer Tools
- •Setting Up the Tutorial
- •Running from a Script
- •Quick-Start Tutorial
- •The Circuit
- •Running within the AMS Environment
- •Opening the Command Interpreter Window
- •Netlisting and Compiling
- •Elaborating and Simulating the Design
- •Summary
- •Setting Up the AMS Environment
- •Overview
- •The hdl.var File
- •The ams.env Files
- •AMS Designer Supports Design Management
- •Specifying the Text Editor to Use
- •Specifying Fonts for the Cadence Hierarchy Editor
- •Preparing to Use AMS Designer from the Hierarchy Editor
- •Netlisting
- •Netlisting Modes Supported by the AMS Netlister
- •Automatic Netlisting of a Cellview
- •Netlist Updating and Netlisting of Entire Designs
- •Netlisting from the UNIX Command Line
- •Library Netlisting
- •Netlisting of Cells in Response to Changes in CDF
- •Preparing Existing Analog Primitive Libraries for Netlisting
- •Specifying the Behavior of the Netlister and Compilers
- •Opening the AMS Options Windows
- •Setting Netlister Options from the Hierarchy Editor
- •Opening the CIW AMS Options Window
- •Setting Compiler Options
- •Viewing the AMS Netlister Log
- •Understanding the Output from the AMS Netlister
- •How Inherited Connections Are Netlisted
- •Inherited Signal Connections
- •Inherited Terminal Connections
- •Instance Values for Inherited Connections
- •Third-Party Tools and Other Cadence Tools
- •How Aliased Signals Are Netlisted
- •How m-factors (Multiplicity Factors) Are Netlisted
- •How Iterated Instances Are Netlisted
- •Passing Model Names as Parameters
- •Effect of the modelname, model, and modelName Parameters
- •Handling of the model* and componentName Parameters
- •Precedence of the model* and componentName Parameters
- •Specifying Parameters to be Excluded from Netlisting
- •Ignoring Parameters for Entire Libraries
- •Example: Specifying Parameters to Ignore
- •Ensuring that Floating Point Parameters Netlist Correctly
- •Working with Schematic Designs
- •Setting Schematic Rules Checker Options for AMS Designer
- •Creating Cellviews Using the AMS Environment
- •Preparing a Library
- •Creating the Symbol View
- •Using Blocks
- •Descend Edit
- •Inherited Connections
- •Global Signals in the Schematic Editor
- •Inherited Connections in a Hierarchy
- •How Net Expressions Evaluate
- •Net and Pin Properties
- •groundSensitivity and supplySensitivity Properties
- •Making Connect Modules Sensitive to Inherited Connection Values
- •Using External Text Designs
- •Overview of Steps for Using External Text Designs
- •Bringing Modules into a Cadence Library
- •Specifying the Working Library
- •Compiling into Libraries
- •Compiling into Temporary Libraries
- •Listing Compiled Modules
- •Using Text Blocks in Schematics
- •Using Modules Located in a Cadence Library
- •Preparing for Simulation
- •Using Analog Primitives
- •Using SPICE and Spectre Netlists and Subcircuits
- •Preparing to Use SPICE and Spectre Netlists and Subcircuits
- •Placing SPICE and Spectre Netlists and Subcircuits in a Schematic
- •Using Test Fixtures
- •Creating and Using a Textual Test Fixture
- •Creating a Textual Test Fixture
- •Using a Test Fixture
- •Example: Creating and Using a Test Fixture
- •Using Design Configurations
- •Ensuring HDL Design Unit Information Is Current
- •Preparing a Design for Simulation
- •Overview of AMS Design Prep
- •What AMS Design Prep Does to Prepare a Design for Simulation
- •When to Use AMS Design Prep
- •Specifying the Behavior of AMS Design Prep
- •Setting Options for Global Design Data
- •Specifying Global Signals
- •Specifying Model Files to Use During Elaboration
- •Specifying Design Variables
- •Running AMS Design Prep
- •The cds_globals Module
- •Global Signals
- •Design Variables
- •Setting Elaborator Options
- •Setting Simulator Options
- •Setting Waveform Selection Options
- •Creating Probes
- •Selecting Instances from the Virtuoso Schematic Editing Window
- •Selecting Buses
- •Selecting Instances from the Scope Navigator
- •Copying and Pasting Within Tables
- •Elaborating and Simulating
- •Viewing Messages
- •Plotting Waveforms After Simulation Ends
- •Starting the SimVision Waveform Viewer
- •Plotting Waveforms Selected on a Schematic (Direct Plot)
- •Using the amsdesigner Command
- •Examples
- •Producing Customized Netlists
- •Producing Customized Netlists
- •Identifying the Sections of a Netlist
- •Using ams.env Variables to Customize Netlists
- •Using Netlisting Procedures to Customize Netlists
- •Examples: Problems Addressed by Customized Netlists
- •Example: Adjusting Parameter Values to Account for Number of Fingers
- •Example: Using Symbols that Represent Verilog Test Code
- •Data Objects Supported for Netlisting
- •Netlister Object
- •Formatter Object
- •Cellview Object
- •Parameter Object
- •Instance Object
- •SKILL Functions Supported for Netlisting
- •Default Netlisting Procedures
- •Netlisting Helper Functions
- •Variables for ams.env Files
- •How AMS Designer Determines the Set of Variables
- •Why AMS Designer Uses ams.env Files, Not .cdsenv Files
- •List of ams.env Variables
- •Detailed Descriptions of ams.env Variables
- •aliasInstFormat
- •allowDeviantBuses
- •allowNameCollisions
- •allowSparseBuses
- •allowUndefParams
- •amsCompMode
- •amsDefinitionViews
- •amsEligibleViewTypes
- •amsExcludeParams
- •amsExpScalingFactor
- •amsLSB_MSB
- •amsMaxErrors
- •amsScalarInstances
- •amsVerbose
- •analogControlFile
- •bindCdsAliasLib
- •bindCdsAliasView
- •cdsGlobalsLib
- •cdsGlobalsView
- •checkAndNetlist
- •checkOnly
- •checktasks
- •compileAsAMS
- •compileExcludeLibs
- •compileMode
- •connectRulesCell
- •connectRulesCell2
- •connectRulesLib
- •connectRulesView
- •detailedDisciplineRes
- •discipline
- •excludeViewNames
- •hdlVarFile
- •headerText
- •ieee1364
- •ifdefLanguageExtensions
- •incdir
- •includeFiles
- •includeInstCdfParams
- •initFile
- •instClashFormat
- •iterInstExpFormat
- •language
- •lexpragma
- •logFileAction
- •logFileName
- •macro
- •maxErrors
- •messages
- •modifyParamScope
- •ncelabAccess
- •ncelabAnnoSimtime
- •ncelabArguments
- •ncelabCoverage
- •ncelabDelayMode
- •ncelabDelayType through ncelabMessages
- •ncelabMixEsc
- •ncelabModelFilePaths
- •ncelabNeverwarn through ncelabVipdelay
- •ncsimArguments
- •ncsimEpulseNoMsg through ncsimExtassertmsg
- •ncsimGUI
- •ncsimLoadvpi through ncsimStatus
- •ncsimTcl
- •ncsimUnbuffered through ncsimUseAddArgs
- •ncvhdlArguments
- •ncvlogArguments
- •ncvlogUseAddArgs
- •netClashFormat
- •netlistAfterCdfChange
- •netlistMode
- •netlistUDFAsMacro
- •neverwarn
- •noline
- •nomempack
- •nopragmawarn
- •nostdout
- •nowarn
- •paramDefVals
- •paramGlobalDefVal
- •pragma
- •processViewNames
- •prohibitCompile
- •runNcelab
- •runNcsim
- •scaddlglblopts
- •scaddltranopts
- •scale
- •scalem
- •scannotate
- •scapprox
- •scaudit
- •sccheckstmt
- •sccmin
- •sccompatible
- •scdebug
- •scdiagnose
- •scdigits
- •scerror
- •scerrpreset
- •scfastbreak
- •scgmin
- •scgmincheck
- •schomotopy
- •sciabstol
- •scic
- •scicstmt
- •scignshorts
- •scinfo
- •scinventory
- •sclimit
- •sclteratio
- •scmacromod
- •scmaxiters
- •scmaxnotes
- •scmaxrsd
- •scmaxstep
- •scmaxwarn
- •scmethod
- •scmodelevaltype
- •scmosvres
- •scnarrate
- •scnotation
- •scnote
- •scopptcheck
- •scpivabs
- •scpivotdc
- •scpivrel
- •scquantities
- •screadic
- •screadns
- •screlref
- •screltol
- •scrforce
- •scscale
- •scscalem
- •scscftimestamp
- •scscfusefileflag
- •scskipcount
- •scskipdc
- •scskipstart
- •scskipstop
- •scspeed
- •scstats
- •scstep
- •scstop
- •scstrobedelay
- •scstrobeperiod
- •sctemp
- •sctempeffects
- •sctitle
- •sctnom
- •sctopcheck
- •sctransave
- •scusemodeleval
- •scvabstol
- •scwarn
- •scwrite
- •simRunDirLoc
- •simVisScriptFile
- •status
- •templateFile
- •templateScript
- •timescale
- •update
- •use5xForVHDL
- •useDefparam
- •useNcelabNowarn
- •useNcelabSdfCmdFile
- •useNcsimNowarn
- •useNowarn
- •useScaddlglblopts
- •useScaddltranopts
- •useScic
- •useScreadic
- •useScreadns
- •useScwrite
- •useSimVisScriptFile
- •useProcessViewNamesOnly
- •verboseUpdate
- •vlogGroundSigs
- •vloglinedebug
- •vlogSupply0Sigs
- •vlogSupply1Sigs
- •wfDefaultDatabase
- •wfDefInstCSaveAll
- •wfDefInstCSaveLvl
- •wfDefInstSaveCurrents
- •wfDefInstSaveVoltages
- •wfDefInstVSaveAll
- •wfDefInstVSaveLvl
- •wfDefInstVSaveObjects
- •Updating Legacy SimInfo for Analog Primitives
- •The ams Fields
- •Special Handling of model, modelName, modelname, and componentName
- •Converting an Existing Analog Primitive Library
- •Designing for Virtuoso AMS Compliance
- •Terminals
- •Buses
- •Component Description Format
- •Parameters
- •Using Inherited Parameters
- •Using Cell Parameters
- •Parameterized Cells
- •VHDL-AMS Component Declarations
- •Properties
- •Properties to Avoid Completely
- •Avoid the portOrder Property Unless Required by Special Circumstances
- •Properties to Use Only in AMS Compatibility Mode
- •Properties That Have No Special Meaning in the AMS Environment
- •Properties Fully Supported by the AMS Environment
- •SKILL Functions
- •amsCheckCV
- •amsIsPresent
- •amsNetlist
- •amsProcessCellViews
- •amsUIOptionsForm
- •amsUIRunNetlisterForm
- •ddsCvtAMSTranslateCell
- •ddsCvtAMSTranslateLib
- •ddsCvtToolBoxAMS
- •vmsUpdateCellViews
- •Customization Variables
- •schHdlNotCreateDB
- •schHdlUseVamsForVerilog
- •vmsAnalysisType
- •vmsCreateMissingMasters
- •vmsNcvlogExecutable
- •vmsPortProcessing
- •vmsRunningInUI
- •vmsTemplateScript
- •vmsVerboseMsgLevel
- •Compiling Cadence-Provided Libraries
- •Purpose of the amsLibCompile Tool
- •Running the amsLibCompile Tool Manually
- •Example
Virtuoso AMS Environment User Guide
13
Producing Customized Netlists
This chapter contains the following sections:
■Producing Customized Netlists on page 300
■Examples: Problems Addressed by Customized Netlists on page 314
■Data Objects Supported for Netlisting on page 327
■SKILL Functions Supported for Netlisting on page 333
April 2004 |
299 |
Product Version 5.3 |
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