5.30.5.1.1 Power-Driven

Select this option to run Power-Driven Layout. The primary goal of power-driven layout is to reduce dynamic power while still maintaining timing constraints.

To get the most out of Power-Driven Layout, it is recommended to:

  1. Enter maximum delay, minimum delay, setup, and hold constraints in SmartTime's constraint editor or in SDC.
  2. Set false paths on any paths that have a constraint, but do not need one (this will help layout meet the constraints that are needed).
    1. Perform Layout with Timing-Driven and Power-Driven options checked. Run Place and Route.
    2. Verify that your timing constraints are still met with SmartTime.
  3. Analyze your power with SmartPower.