Virtuoso XL Layout Editor User Guide

Preparing Instances and Pins in Your Layout for the Virtuoso XL Layout Editor

The permuteRule property appears in the Edit Instance Properties form.

9.Click Apply.

Virtuoso XL uses the permutability that you specified (unless you regenerate or reinitialize the layout).

Setting the permuteRule Property in the Component Description Format

For more information about CDFs, see the Component Description Format User Guide. To add a default parameter to the device CDF, follow these steps.

1. In the Command Interpreter Window (CIW), choose Tools – CDF – Edit.

Virtuoso XL Layout Editor User Guide

Preparing Instances and Pins in Your Layout for the Virtuoso XL Layout Editor

The Edit Component CDF form appears.

Note: Do not press the Return key after typing information in a field in this form; it causes the form to close.

2.In the Library Name field, type the library name.

3.In the Cell Name field, type the cell name.

4.Move the cursor out of the form or press Tab.

Virtuoso XL Layout Editor User Guide

Preparing Instances and Pins in Your Layout for the Virtuoso XL Layout Editor

The Edit Component CDF form expands to include information about the device.

Virtuoso XL Layout Editor User Guide

Preparing Instances and Pins in Your Layout for the Virtuoso XL Layout Editor

5. Scroll down to the Simulation Information section of the form.

Edit button

6. In the Simulation Information section of the form, click Edit.

Virtuoso XL Layout Editor User Guide

Preparing Instances and Pins in Your Layout for the Virtuoso XL Layout Editor

The Edit Simulation Information form appears.

1 2

Syntax

(p 1 2)

7.From the Choose Simulator cyclic field, chooseauLVS.

8.In the permuteRule field, type thesyntax that defines the pins you want to permute.

9.Click OK.

10.On the Edit Component CDF form, click OK.

The system adds the permuteRule parameter to the component.