lxCanSwapSDFunction

layoutXL lxCanSwapSDFunction string "user_Defined_SKILL_Function"

Description

Sets the name of a user-defined SKILL function that determines whether the source and drain pins can be swapped.

The user-defined SKILL function must return t if the Pcell master of the instance has a Pcell parameter that swaps the locations of the S and D pins, and if for this instance you want swapping to be enabled. Otherwise, it should return nil.

If the user-defined SKILL function set by this environment variable returns t, and Layout XL needs to swap the S and D pins, then the function defined in lxSwapSDFunction is called with an instance to update the Pcell parameter that swaps the locations of the S and D pins.

The default is "".

The S and D pins can be swapped using the Pcell parameter only when both lxCanSwapSDFunction and lxSwapSDFunction are defined.

GUI Equivalent

None

Example

envGetVal("layoutXL" "lxCanSwapSDFunction")

envSetVal("layoutXL" "lxCanSwapSDFunction" 'string "canSwapSD")

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