Defining a Many-to-One Device Correspondence

To define a correspondence between multiple schematic instances and a single layout instance (for example, binding two schematic transistors to a single inverter in the layout):

1. From the layout window menu bar, choose Connectivity – Define Device Correspondence.
   The Define Device Correspondence form appears.
2. Select the unbound instances from the Schematic tree and the unbound instance from the Layout tree to which the selected schematic instances need to be bound.
   You can only bind the unbound instances. To only see the unbound instances, choose Unbound Instances from the Filter cyclic field; to see only the unbound terminals, choose Unbound Terminals.
3. Click Bind to create a correspondence between the selected schematic instances and the selected layout instance.
   Layout XL binds the instances, but needs more information to propagate the connectivity correctly. Therefore, the Assign layout instance terminals form is displayed, which you can use to assign layout nets to the unbound instance terminals in the selected layout instance. For more information, see Assigning Layout Instance Terminals to Nets.
4. When you have finished assigning the layout instance terminals, click Close to close the form.
   The schematic and layout correspondence is updated and the connectivity you defined is propagated to the layout.

Related Topics

Define Device Correspondence Form

Assign Layout Instance Terminals Form

Assigning Layout Instance Terminals to Nets