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CADSTAR 9.0

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T-In & T-Out

Simple T-Out and T-In

Once you have routed Trunks in your design using the Trunk Router it is possible to simply modify the path of a Trunk.   This can be done by clicking the left mouse button at a point in the Trunk that you wish to modify, with the manual route icon selected.  The Trunk Router will then be started at the point you selected with one half of the Trunk drawn in outline mode and the other half with a dynamic end ready for routing.  Action preview shows you the section of Trunk that would be removed in outline mode during this operation.  The operation of finishing at another position in the Trunk is known as T-In to an existing Trunk.  The example below shows simple modification of Trunks using the T-Out and T-In functionality.
 


 

T-In adding a Trunk Via Pattern

You can T-In to an existing Trunk in the same system on a different layer by adding a Trunk Via Pattern.  The Trunk Router automatically inserts Trunk Via Patterns where required.  The example below shows T-In to an existing Trunk on a different layer by inserting a Trunk Via Pattern.
 


 

T-In to an existing Trunk Via Pattern

You can also T-In to a Trunk Via Pattern on the same system.  The example below shows T-In to an existing Trunk Via Pattern.
 


 

Shrink and Extend of Trunk ends

You can also dynamically compose and de-compose the end of a Trunk that is connected to a set of pins.  In the example below the Trunk End Router is set to have Continuous un-ticked.  With the pointer icon selected on the toolbar you can dynamically shrink and extend the end of the Trunk. The Trunk is  decomposed and composed dynamically.
 


 

With Trunk End Routing set to Continuous the Trunk End Router will also re-route the ends as you shrink and extend the Trunk.  The example below shows Shrink and Extend with the Trunk End Router.
 

 

Note: This functionality is also available for a width change for a Trunk.

Note: When moving Trunk terminals you can also start the Trunk Router using the 'R' key on your keyboard.