User Guide

Specifying Part Packaging Information
209
Specifying Which Pins Can Be Swapped
Pins within a gate that are logically equivalent to one
another can be swapped. Pin swapping is usually done
during layout to minimize the complexities of circuit
routing.
Enabling pin swapping
1 From the Packaging menu, select Edit to display the
Package Definition dialog box (see 6-205
).
2 Click Edit Pin Swaps to display the Pin Swaps dialog
box.
3 In the Pin Names list, select two or more pins that you
want to swap.
4 Click Assign.
The pin numbers appear in the Pin Swaps list
separated by commas.
5 Repeat steps 3 and 4 for any other pin number
combinations that you want to swap.
6 Click OK.
7 In the Package Definition dialog box, click OK.