Virtuoso Schematic Composer User Guide

Creating a Multisheet Schematic

Example

Using the default format of sheetNumber zone referenceName

The reference name (PP<0:3>) is enclosed in parentheses only if it is different from the pin name. PP<7:0> is referenced at

■Sheet 1, zone A2, by pin name PP<0:3>

■Sheet 2, zone A1, by pin name PP<7:0>

■Sheet 3, zone B4, by pin name PP<7:0>

Customizing the Format String Syntax

You can customize the following:

■Pin Reference Format using the pinRefFormat environment variable

Specifies the format for displaying the pin reference information that appears next to each pin when you choose Sheet – Cross Reference.

■Pin Reference Duplicates using the pinRefDuplicates environment variable

Specifies whether the editor reports duplicate pin references for a pin when you choose

Sheet – Cross Reference.

■Pin Reference Sorting using the pinRefSorting environment variable

Specifies how the editor sorts pin references when you chooseSheet – Cross Reference.

Customizing Multisheets

The following sections describe in detail the process of customizing multisheets:

■The Basic Procedure on page 226

■Customizing the Types and Sizes of Sheet Borders on page 226

■Customizing the Cross Reference Options Form on page 228

■Drawing a Customized Sheet Border on page 228

■Drawing Sheet Zones on page 229

Virtuoso Schematic Composer User Guide

Creating a Multisheet Schematic

■Drawing Zone Labels on page 230

■Adding the Sheet Zone Property on page 231

■Adding a Title Block on page 232

■Adding Title Block Values with Normal Labels on page 232

■Verifying the Label Type on page 234

■Adding Title Block Properties on page 234

■Customizing Pin Cross-References on page 236

■Presetting the Title Block Values on page 236

The Basic Procedure

In general, to use customized sheets in your schematic, do the following:

1.Create your own sheet as a symbol or use one from Cadence-supplied US_10ths library.

2.Open the schematic view in Virtuoso® Schematic Composer.

3.Instantiate the desired sheet symbol in your schematic.

4.Fit the sheet symbol into the page.

5.Move, align, and resize the schematic within the sheet border.

6.Check and save your schematic.

Customizing the Types and Sizes of Sheet Borders

You can use your own customized sheet border symbols when you create new sheet schematics. You can customize the display of pin cross-references.

Virtuoso Schematic Composer User Guide

Creating a Multisheet Schematic

The fields on theCreate Schematic Sheet form appear as follows:

Create Schematic Sheet

To customize the default settings on the Create Schematic Sheet form, do the following:

1.In the configuration file, search for schSheetMasters.

2.Define or delete the types and sizes of sheet borders.

For example, you can modify the C-size sheet as follows:

list("myLib" "myCsize" "symbol") list("myLib" "myCsize.c" "symbol"))

where

myLib is the name of your design library.

myCsize is your name for the size of your customized sheet. myCsize.c is the continuation sheet.

symbol specifies all multisheet borders are symbols.