Virtuoso Schematic Composer User Guide

Automatically Creating Cellviews

Automatically Creating a Cellview from a Pin List

A pin list can be any list of input, output, I/O, or switch pins. You can create a cellview from existing pins, such as those from the basic pin library, or you can create the cellview from new pin names.

To create a symbol cellview from a pin list, do the following:

1.Choose Design – Create Cellview – From Pin List. The Cellview From Pin List form appears.

2.Type the names of the pins that you want to appear in the automatically created cellview. Separate each pin name with a space.

By default, the software initializes the form with information about the cellview currently open (the default cellview).

Virtuoso Schematic Composer User Guide

Automatically Creating Cellviews

3.If you want to use a different cellview as the source of the port/pin information, change the Library Name, Cell Name, and View Name fields.

Note: If either theView Name field or theTool / Data Type cyclic field does not contain the desired view or conversion function, you must modify the schViewToPinListReg list or the schPinListToViewReg list, both of which are defined in yourschConfig.il

file.

4.If you want the system to display the cellview in a new window, turn on the Display

Cellview button.

5.If you want to edit various cellview creation options, turn on Edit Options.

6.Click OK.

When generating a symbol, the Symbol Generation Options form appears if you turned on Edit Options and the cellview is being newly created or replaced.

If the cellview already exists, a dialog box prompts you to either replace the cellview, modify it (symbol cellview only), or cancel the command.

The system generates the specified cellview from the pin information you enter on the form.

Automatically Creating a Cellview from an Instance

To create a cellview from an instance, do the following:

1.Choose Design – Create Cellview – From Instance.

2.Click on an instance in your design window.

Virtuoso Schematic Composer User Guide

Automatically Creating Cellviews

The Cellview From Instance form appears.

3.Change the options on the form, if needed.

4.Click OK.

The system generates the specified cellview from the instance you selected. When you turn on Display Cellview, the system displays the cellview in a new window.