Virtuoso XL Layout Editor User Guide

Updating Design Data in Virtuoso XL

converging towards finding correct mappings. You are responsible for validating the possible mappings proposed by the algorithm.

Updating the Connectivity Reference

In Virtuoso XL, the default schematic is the schematic with the same cellview name as the layout.

You can change this setup so that you can update your layout using a schematic different from the default schematic by following these steps.

1.Choose Connectivity – Update – Source.

The Define Connectivity Reference form appears. For more information about this form see Define Connectivity Reference Form on page 195.

2.Choose Schematic as the connectivity source type.

3.Do one of the following:

Type the name of the library, cell, and view of the device to update in Library, Cell, and View fields.

Click Browse to see the cells available in the Library Browser, and click on a cell name in the Library Browser.

Click Sel by Cursor and then click on an open schematic.

4.Click OK.

Virtuoso XL Layout Editor User Guide

Updating Design Data in Virtuoso XL

Virtuoso XL sets the connectivity reference to the schematic you selected.

Changing the Device (Instance) View

To change the layout view of a device or selected set of devices in a hierarchical design, follow these steps.

1.From the layout window, choose Connectivity – Change Instance View.

The Change Instance View form appears. For more information on this form, see Change Instance View Form on page 474.

2.Click on the device whose layout view you want to change (or type the name in the Dev Name field).

To select multiple devices, hold down Shift. You can move from one selected device to the next using Next and Previous. The Switch to View Name cyclic field changes to show the device name and available view names for the device displayed in the cyclic field. A dialog box appears and tells you when you reach the first or last device.

3.From the Switch to View Name cyclic field, select the view name you want.

4.To see all the devices in your layout and the view names available for them, click List Devices.

The Change Inst View Device List form appears, showing all devices associated with the layout you have open. For more information on this form, see Change Inst View Device