Simulator Configuration Guide for Synopsys Models

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Appendix A: Using LMTV with Synopsys ModelsSimulator Configuration GuideLMTV Command-Line SwitchesLMTV command-line switches have a session-wide scope that impacts all SmartModelinstances. Notice that the +laiobj switch, used by the LAI interface, is not used in eithermode of the LMTV interface. Following are brief descriptions for each of the commandlineswitches that you can use with LMTV:+notimingchecks+[min | typ | max]delays+lmudtmsg or +laiudtmsg+lmoldstr+lmoldtrans+lmresstrDisables timing checks (for example, setup and holdtimes) and their accompanying messages. The defaultis to perform the timing checks.Specifies a single delay range for all model instances.The default is to use the delay range in the model’sDelayRange or RANGE attributes.Generates a list of the timing files loaded at simulationstartup. This is equivalent to setting the commandchannel command TraceTimeFile to ON. The default isnot to list the timing files. For more information aboutthe command channel. refer to the SmartModel LibraryUser’s Manual.Maps all model signal strengths to “strong” for alloutput events that have resistive strength. The default isto use resistive strength to reflect the true state of theSWIFT pin.Indicates that the historic style is to be used fortranscribing messages. The historic style messagecontains references only to timing version names anddoes not specify any time units. The default is thatmessages contain references to both timing versionnames and model names. Timing values are innanoseconds (ns).Disables mapping of SmartModel Library signalstrengths to “strong” strength, even if a historic modelmodel.v file (vshell) is detected. Use this switch if youwant your historic-mode design to use true resistivestrengths. This switch only works with the SWIFTinterface.270 Synopsys, Inc. October 6, 2003
Simulator Configuration GuideAppendix A: Using LMTV with Synopsys ModelsLMTV CommandsLMTV commands are predefined tasks that you place within your testbench or design.LMTV commands all begin with an $lm_ prefix. Some of them have historiccounterparts, which begin with an $lai_ prefix. You can use any or all commands ineither the SWIFT or the Historic SmartModel modes, except for the$lm_monitor_vec_map() command, which can be used only in SWIFT SmartModelmode.NoteThe $lai_ commands are provided to support older designs. Therefore, youdo not have to convert $lai_ commands to $lm_ commands. However, whenstarting a new design it is best to use the $lm_ commands and not the $lai_commands.Here is a list of the LMTV interface commands:● “$lm_command() or $lai_command()” on page 272● “$lm_dump_file() or $lai_dump_file()” on page 273● “$lm_help()” on page 274● “$lm_load_file() or $lai_load_file()” on page 275● “$lm_monitor_enable() or $lai_enable_monitor()” on page 276● “$lm_monitor_disable() or $lai_disable_monitor()” on page 276● “$lm_monitor_vec_map() and $lm_monitor_vec_unmap()” on page 278● “$lm_status() or $lai_status()” on page 280October 6, 2003 Synopsys, Inc. 271
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Simulator ConfigurationGuide for Sy
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PrefaceSimulator Configuration Guid
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Chapter 1: Using Synopsys Models wi
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Chapter 2: Using VCS with Synopsys
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Chapter 3: Using ModelSim Verilog w
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Chapter 4: Using ModelSim VHDL with
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Chapter 5: Using NC-Verilog with Sy
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Chapter 6: Using NC-VHDL with Synop
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Chapter 7: Using QuickSim II with S
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Chapter 8: Using Scirocco with Syno
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Chapter 9: Using VERA with Synopsys
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Simulator Configuration Guide for Synopsys Models

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