User Guide

Chapter 4 Creating and Editing Designs
114
Using Ports
Signals can be connected without using wires or buses by
connecting them to global or off-page ports and labeling
the ports with the same name.
Off-Page Ports
Off-page ports connect to other off-page ports with the
same name on the same page or on other pages within the
same schematic. If you are working on a schematic and
you need to connect signals between pages, use off-page
ports.
Figure 10 Off-page Port
Global Ports
Global ports connect to other global ports of the same
name anywhere in the schematic hierarchy.
The symbol library port.slb contains several port
symbols. You can also create your own port symbols
using the symbol editor.
Figure 11 Global Ports
A t
h
ir
d
type o
f
port, inter
f
ace port provi
d
es
connections between the pins of a
hierarchical block or symbol and the
underlying schematic. Refer to Chapter
7, Creating and Editing
Hierarchical Designs, the section on
Using Interface Ports
on
page 7-236.
OFFPAGE
GLOBAL
BUBBLE
EXTERNAL_IN
EXTERNAL_OUT
EXTERNAL_BI