Simulator Configuration Guide for Synopsys Models

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Chapter 7: Using QuickSim II with Synopsys ModelsSimulator Configuration GuidePIN_NAME MappingThe two methods for creating custom symbols described in “Custom Symbols” on page144 cannot be used to map bus symbol pins to model pins. You must use a pin_map fileto accomplish this sort of custom symbol creation, as explained in the followingsections.PIN PropertyA PIN property can have two distinct values in Design Architect, as follows:●●Compiled pin valueUser pin valueThe compiled pin value must be the same value that is used in the model. When initiallyadding a pin to a symbol, both these values are set to the specified value. For example,naming a pin “A” causes both its user pin value and the compiled pin value to be “A”.Changing a PIN property value causes the compiled pin value to track the user pinvalue. Specifically changing the compiled PIN property value disables this trackingmechanism. To re-enable tracking, set the value of the compiled PIN property to null(“”).PIN_NAME PropertySmartModel Library symbols include a property called PIN_NAME that is used purelyfor graphical purposes. The PIN_NAME property is provided because SmartModelLibrary symbols do not completely match the Mentor Graphics requirements for pinnames. Deleting a PIN_NAME property does not affect model functionality in any way.AttentionDo not confuse the PIN property with the PIN_NAME property onSmartModel symbols.Purpose of the pin_map FileUse the pin_map file to map custom symbol pins to model pins. If your symbol does nothave buses, then you can use the “user pin value” and “compiled pin value”combinations previously described to do this mapping without using the pin_map file. Ifyou have bus pins on your symbol, then you need to use a pin_map file and ensure thatthe PKG symbol property is set to the value “BUS”. Following is a general descriptionof the pin_map file which describes both cases.NoteError messages cite the pin names used by the model, not those on thesymbol or in the pin_map file.146 Synopsys, Inc. October 6, 2003
Simulator Configuration GuideChapter 7: Using QuickSim II with Synopsys ModelsHow the pin_map File WorksAt startup, a PKG symbol value of “BUS” triggers the simulator to look for a pin_mapfile for that model. The pin_map cross-reference file is a free-format ASCII file. Itcontains statements that use the following syntax:pin_type symbol_pin [ = ] model_pin_names ; [ # comment_text ]Following are descriptions of the fields and options.pin_typesymbol_pinMust be the same value as the PINTYPE property of themodel. Valid values are IN, OUT, IXO, and IO. Do not changethis value.The new pin name you want to use on your symbol. This is thesymbol's user PIN property, not its PIN_NAME property.= Optional.model_pin_namesA statement can have from 0 to 767 model_pin_names,separated by spaces, tabs, or new lines. The model_pin_namesare ordered from most significant to least significant and referto the PIN property, not the PIN_NAME property.; Ends a statement.# Starts a comment, which runs to the end of the line.October 6, 2003 Synopsys, Inc. 147
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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 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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Simulator Configuration Guide for Synopsys Models

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