Routing Region
The routing region is an attribute attached to an existing Logic Lock placement region. The routing region must
encompass the existing Logic Lock placement region.
To define the routing region, double-click the Routing Region cell in the Logic Lock Regions window, and
select from the drop-down menu.
Valid Routing Region options are:
|
Option |
Description |
|---|---|
| Unconstrained (default) | Allows the fitter to use any available routes on the device. |
| Whole Chip | Same as Unconstrained, but writes the constraint in the Quartus® Prime settings file (.qsf). |
| Fixed with Expansion | Follows the outline of the placement region. The routing region scales by a number of rows/cols larger than the placement region. |
| Custom | Allows you to make a custom shape routing region around the Logic Lock region. When you select the Custom option, the placement and routing regions move independently in the Chip Planner. In this case, move the placement and routing regions by selecting both using the Shift key. |
Note: The routing
shape must encompass the placement shape.
You set the routing region in the Logic Lock Routing Region Settings dialog box. Open this dialog box by clicking the Routing Region column for your region.