Product Documentation
Virtuoso Layout Suite XL: Connectivity Driven Editing User Guide
Product Version IC23.1, November 2023

Ignoring Mismatched Pins

If a symbol in a schematic has more pins than the corresponding device on the layout, Layout XL generates a warning about mismatched pins. To ignore mismatched pins,

  1. In the schematic window menu bar, choose Edit – Hierarchy – Descend Edit to descend into the symbol of the instance.
  2. In the schematic window, choose Edit – Properties – Cellview.
    The Edit Cellview Properties form is displayed.
  3. Click Add to display the Add Property form and add a new Boolean property on the pin, for example, unusedPin, and set it to t.
  4. Add the property name (unusedPin) as a value in the propsUsedToIgnoreObjs environment variable in your .cdsenv file.
    layoutXL propsUsedToIgnoreObjs string "unusedPin"
    Or type the following in the CIW.
    envSetVal("layoutXL" "propsUsedToIgnoreObjs" 'string "unusedPin")

The next time you generate or update a layout or run the Check Against Source command, the software does not issue warnings about mismatched or missing pins.

Related Topics

propsUsedToIgnoreObjs


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