create_no_pref_dir_region

create_no_pref_dir_region

Description

(Virtuoso Routing IDE and Space-based Router only) Identifies regions in the design that contain a bank of tightly spaced pins on layers whose preferred routing direction is opposite to the preferred direction for the most efficient routing to or from the pins. Each no preferred direction region is marked with a rectangular boundary and the router is permitted to wrong-way route as needed within those regions.

To remove all no preferred direction regions, use delete_no_pref_dir_region.

Arguments

None

Related Topics

Design Configuration Commands

delete_no_pref_dir_region