21.9.5 Timing Exceptions Overview

Use timing exceptions to overwrite the default behavior of the design path. Timing exceptions include:

• Setting multicycle constraint to specify paths that (by design) will take more than one cycle.
• Setting a false path constraint to identify paths that must not be included in the timing analysis or the optimization flow.
• Setting a maximum delay constraint on specific paths to relax or to tighten the original clock constraint requirement.