Virtuoso Schematic Composer User Guide

Editing Properties

Editing Specific Object Properties

Before you can edit object properties, you must be in edit mode. You can edit object properties that describe the following objects:

To avoid confusion when text, labels, or names actually contain underscore characters, Cadence does not recommend that you enable the Overbar display option. It is provided only for backward compatibility with prior releases.

Editing Instance and Block Properties

To edit instance and block properties and their parameters and values, do the following:

1.Click an instance or block in your design that has a property you want to edit.

2.Choose Edit – Properties – Objects.

Virtuoso Schematic Composer User Guide

Editing Properties

The Edit Object Properties form appears.

Edit Object Properties

If you clicked on an instance in your design,

The Magnification and Origin fields appear when you enable theShow system field

The Display cyclic field controls whether the value of a property appears in your schematic

If you clicked on a block in your design,

The Magnification, Origin, and FreezePinCreate fields appear when you enable the Show system field

To automatically add a pin when you add a wire to a block, turn on

FreezePinCreate.

You can change the direction and name of a block pin when you enable the Show system button.

To change the Instance Name default field, seeChanging the Default Instance Name Prefix.

Virtuoso Schematic Composer User Guide

Editing Properties

3. Click OK.

Editing Pin Properties

To edit pin properties and their parameters and values, do the following:

1.Click a pin in your design that has a property you want to edit.

2.Choose Edit – Properties – Objects.

The Edit Object Properties form appears.

Edit Object Properties

3.Change the Direction or Usage cyclic values of the pin.

4.Click OK.

Designating the Order of Pins

A pin order property is often required for netlisting. You can update or swap the pin order either manually or by copying.

Note: CDLOUT, Verilog-XL Integration, and VHDL Integration support the portOrder property.

To manually redefine the logical pin ordering for netlisting, do the following:

Virtuoso Schematic Composer User Guide

Editing Properties

1.Choose Edit – Properties – Pin Order.

The Edit Pin Order form appears.

2.Select a pin name by clicking on it in the list box.

3.Click one of the move buttons to move the selected pin name up or down in the list

4.Click OK.

Copying a Pin Order from Another Cellview

To copy a pin order from another cellview, do the following:

1.Choose Edit – Properties – Pin Order.

The Edit Pin Order form appears.

2.Select a pin name by clicking on it in the list box.