When you select a constraint type, the corresponding spreadsheet appears on the right sub-window panel. This allows you to view all the constraints of the same type that have already been created.
Figure 1. Timing Constraints Categories
To create a new constraint, double click the name of the target constraint. A dialog box allows you to specify the value for each option. When you click OK, the tool does the following:
- Validates the syntax.
- Applies the syntax to the memory.
- Adds the new constraint at the end of the spreadsheet.
- Adds the new constraint at the end of your complete list of constraints.