Simulator Configuration Guide for Synopsys Models

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Chapter 7: Using QuickSim II with Synopsys ModelsSimulator Configuration GuideTable 27: Signal Instance Command Summary (Continued)Feature Command DescriptionUnknownhandling andpropagationIndeterminatestrength mappingTest vectorloggingTimingmeasurementxp [-p pin_name]x0 [-p pin_name]x1 [-p pin_name]xz [-p pin_name]propagatenopropagatedefault_ propagation-p numberrandom_seed-p seedisizlogvectors-p filenamenologvectorstm [-p filename]notmMaps an unknown input state to the previousstate (Default)Maps an unknown input state to a logic zerostateMaps an unknown input state to a logic onestateMaps an unknown input state to a float statePropagates unknowns through the hardwaremodelTurns off unknown propagation (default)Sets the number of additional sequences to beplayed to the instance when unknownpropagation is enabled (default = 0)Sets the value of the seed for the randomsequence generator when unknown propagationis enabled (default = 0)Maps an indeterminate strength (i) to a strongstrength (s) (default)Maps an indeterminate strength (i) to a highimpedancestrength (z)Turns on test vector loggingTurns off test vector logging (default)Turns on timing measurement: returns theactual measured delays to QuickSim IITurns off timing measurement: uses the delayvalues specified in the Shell Software or in thetechnology file (default)Loop mode loop Turns on loop mode: the modeling systemrepeatedly plays a pattern history to thephysical devicenoloopTurns off loop mode (default)178 Synopsys, Inc. October 6, 2003
Simulator Configuration GuideChapter 7: Using QuickSim II with Synopsys ModelsTable 27: Signal Instance Command Summary (Continued)Feature Command DescriptionInformation dump Reports all available information about theselected instance of a hardware modeled devicelmc[-p shell | allshell]vectorReports the type of timing shell (Shell Softwareor technology file) for the selected instanceReports the runtime vector count of the selectedinstanceModel EvaluationBy default, all component instances are evaluated in QuickSim II. If you want to disableevaluation of models for selected instances, you can use the SIGnal INSTance disablecommand. This command isolates sections of the design and shortens the simulationtime for debugging purposes. To turn model evaluation on again for selected instances,you can use SIGnal INSTance enable.Timing Shell SelectionThe SIGnal INSTance lst command lets you use the hardware model’s Shell Softwaretiming files instead of the default technology file during evaluation of the selectedinstances. You can use the SIGnal INSTance nolst command to switch back to thetechnology file for selected instances.The optional -p all argument enables you to choose the type of timing shell for allhardware models in the design, if you have at least one instance selected. For example,you could use the following command before simulating:sig inst lst -p allQuickSim II ignores the technology files for all hardware models in the design and takethe timing (delays and timing checks) directly from the Shell Software. If you decidedyou wanted to use the technology files instead for all hardware models, you could usethe following command to switch back to the default timing shell without having toselect every instance:sig inst nolst -p allOctober 6, 2003 Synopsys, Inc. 179
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Simulator ConfigurationGuide for Sy
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ContentsSimulator Configuration Gui
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ContentsSimulator Configuration Gui
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FiguresSimulator Configuration Guid
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TablesSimulator Configuration Guide
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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 9: Using VERA with Synopsys
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Chapter 10: Using SystemC with Syno
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Appendix A: Using LMTV with Synopsy
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Appendix B: Using Custom Memory Mod
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IndexSimulator Configuration Guide$
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