Virtuoso Schematic Composer User Guide

Creating a Multisheet Schematic

A dialog box appears, showing you the number of errors and warnings in your schematic.

The CIW shows details about the errors and warnings and how to fix them.

Schematic Check

There were 0 errors and 7 warnings found.

Close

2. Correct all errors, if applicable.

Displaying Cross-References

You can display cross-reference annotations to schematic and offsheet pins to indicate other locations in the design where the same pins are used on different sheets.

To display cross-reference annotations to schematic or offsheet pins, do the following:

1. Choose Sheet – Cross Reference.

Virtuoso Schematic Composer User Guide

Creating a Multisheet Schematic

The Cross Reference Options form appears.

Cross Reference Options

report.file

<sheetNumber><zone><referenceName>

2.To produce a report that you can view in a window, do the following:

Turn on Generate Cross Reference Report File.

In the Report File field, type a filename.

Edit the Format String field, if necessary.

3.Click OK.

The system searches for each pin on each sheet and creates a list of the locations where you use each pin or a subset of a bus or bundle pin. The reference pin must have at least one shared member name with the pin name.

Virtuoso Schematic Composer User Guide

Creating a Multisheet Schematic

Pin cross-references are displayed on the schematic next to the pin name.

Pin names i1 and a<0:3>,b

You can now zoom in from one pin to another by choosing Sheet – Go To Pin.

Zooming In to View All Cross-Referenced Pins One by One

To see each occurrence of a cross-referenced pin on all sheets of a multisheet schematic, do the following:

1.From the index schematic, choose Check – Current Cellview to make sure the cellview is error free.

2.Choose Sheet – Cross Reference to generate the pin cross-references.

3.Choose Sheet – Go To Pin. The Go To Pin form appears.

Go To Pin

4. Select the pin or offsheet connector in your design to follow throughout the multisheets.

Virtuoso Schematic Composer User Guide

Creating a Multisheet Schematic

The schematic editor zooms in to the area that contains the specified pin or offsheet connector. For example, if you selected first, the schematic editor shows the cellview that contains the first reference of the pin or offsheet connector you selected.

You can continue to view all related pins using the Go To Pin form.

Going to a Specific Hierarchical Pin

To go to a specific hierarchical pin, do the following:

1.From the index schematic, choose Check – Current Cellview to make sure the cellview is error free.

2.Choose Sheet – Cross Reference to generate the pin cross-references.

3.Go to the index schematic.

4.Press and hold down the middle mouse button while the pointer is over one of the hierarchical pins.

5.On the object-sensitive menu (OSM) that pops up, choose Go To.

You can set the OSMs on or off at any time.

Viewing Cross-Reference Reports

The cross-reference report file contains a list of pin names followed by all of the locations where each pin is referenced in a multisheet schematic. The report lists the cross-references in the same format as the strings that are displayed in the schematic.

To view a cross-reference report, do the following:

1. Choose Sheet – Cross Reference.

Virtuoso Schematic Composer User Guide

Creating a Multisheet Schematic

The Cross Reference Options form appears.

Cross Reference Options

report.file

<sheetNumber><zone><referenceName>

2. Click View Report.

A window listing the pin references appears, as follows: