Quartus® Prime Standard Edition User Guide: Design Compilation

ID 683283
Date 10/22/2021
Document Table of Contents Preservation of Placement in the Device with LogicLock

In order to fix the safety IP logic into specific areas of the device, you should define LogicLock regions. By using preserved LogicLock regions, device placement is reserved for the safety IP to prevent standard logic from being placed into the unused resources of the safety IP region. You establish a fixed size and origin to ensure location preservation. You need to use LogicLock to ensure a valid safety IP POF mask is generated when you turn on the functional safety separation flow. The POF comparison tool for functional safety can check that the safety region is unchanged between compiles. A LogicLock region assigned to a safety IP can only contain safety IP logic.