Page Ports

A page port serves as a named connection to a signal that is common to two or more pages of the schematic.

• To place a page port in the schematic, click on the Page Port icon in the Schematic Editor menu.
• Click again in the Schematic Editor window to place the port symbol. By default, the port is named “Pageport_n”, where n is an arbitrary integer.

The name of the port is the same as the name of the node or net to which it is connected. Node names of the form “net_n” are automatically generated during the wiring operation, but they can be renamed by clicking on the wire , then clicking on the node name in the Parameters window. If the port is placed so that it connects to an existing node with a system-assigned name (“net_n”), the node is renamed to the name of the port. If the node was manually named, the node retains its user-defined name and the page port gets that name.

To rename a port (and the node to which it connects):

• Click the port to select it and view its properties in the property window.
• Click the port name in the Port Name field to open the Page Port Name window: Enter the appropriate name, then click OK. The property window reflects the new name.
• You can also change a port name attached to a node by selecting the node and clicking on the node name in its property window. A Net Name window similar to the one above opens for you to specify a new name. Changing the net name changes the names of any ports attached to that node.
• If you name a port the same as an existing net, the two nodes are merged into a single node with that name. A window box appears to confirm the merge operation.
• If you delete a page port, the node to which it was attached retains the name it had before the delete, either system-defined or user-defined.

Page ports serve as a graphic reminder that a signal may be present on another page. Any node with a given name (system-generated or user-defined) is automatically connected across all pages that reference it.