Virtuoso AMS Environment User Guide

Using External Text Designs

Using Text Blocks in Schematics

The description in this section assumes that the text blocks to be instantiated in a schematic are already included in an accessible library. If this is not the case, you need to compile the blocks into a library. For more information, see “Bringing Modules into a Cadence Library” on page 180.

You must have a corresponding symbol before you can add a component to a schematic. If you need to create a symbol for a text view, the easiest way is to

1.Reopen the text cellview.

For example, you might select the cellview in the library manager and choose File – Open from the menu.

2.Save the text (as you do after editing the code), and then close the cellview.

A dialog box appears, asking whether you want to create a symbol for the component.

3.Click Yes.

Alternatively, you can also add a symbol view by following these steps:

1.Select File – Open from the CIW. The Open File form appears.

2.Open any schematic or symbol cellview.

The Symbol Editing window opens.

3.From the Symbol Editing window, select Design – Create Cellview – From Cellview.

Virtuoso AMS Environment User Guide

Using External Text Designs

The Cellview From Cellview form appears.

4.Type in the Library Name and Cell Name of the text block that lacks a symbol.

5.In the From View Name field, select the cellview of the text block.

6.In the Tool / Data Type field, selectComposer-Symbol. The To View Name field changes to symbol.

7.Click OK.

The Symbol Generation Options form opens.

8.Click OK in that form.

A Symbol Editing window appears.

9.Edit the symbol if necessary, save it, and close the Symbol Editing window.

At this point, you have a symbol representing the text block that you can place in a schematic.