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Route Commands

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The AutoRouter commands are used for routing signal nets after power routing and other specialty routing, such as clock nets and buses. The AutoRouter flow includes the following steps:

• Global Route replaces all opens with global routes and re-routes to reduce congestion.
• Local Route adds pin escapes.
• Conduit Route lays down as many wires as possible along routing conduits.
• Detail Route completes the routing of all nets and resolves violations.
• Post-Route Refinement fixes some violations, re-routes short connections, and removes unnecessary vias.

While some of the Tcl commands given in this section are used to set specific Virtuoso Space-based Router constraints, there are many constraints that affect the routing of the design.

Following is a list of routing commands.

Related Topics