22.15.2 Specifying Clock Constraints

Use the Clocks tab to assign values to each clock network in your design.

To assign clock constraints:

  1. Click the Clocks tab.
  2. Select the clock of interest in the Select Clock pull-down menu in the toolbar.
  3. Specify the timing requirements. In the Constraints area, define the Required and Duty Cycle areas. Select MHz or ns from the drop-down menu.
  4. Click Set.