Intel® Quartus® Prime Standard Edition User Guide: Design Optimization

ID 683230
Date 11/12/2018
Public
Document Table of Contents

5.2.5.3. Reserved Logic Lock (Standard) Regions

The Reserved attribute instructs the Fitter to only place the entities and nodes that you specifically assigned to the Logic Lock (Standard) region in the Logic Lock (Standard) region.

The Intel® Quartus® Prime software honors all entity and node assignments to Logic Lock (Standard) regions. Occasionally entities and nodes do not occupy an entire region, which leaves some of the region’s resources unoccupied.

To increase the region’s resource utilization and performance, Intel® Quartus® Prime software by default fills the unoccupied resources with other nodes and entities that have not been assigned to another region. To prevent this behavior, turn on Reserved on the Logic Lock (Standard) Region Properties > General tab.

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