Quartus® Prime Standard Edition User Guide: Design Compilation

ID 683283
Date 10/22/2021
Document Table of Contents

2.9.7. Creating Non-Rectangular Regions

To constrain placement to non-rectangular or non-contiguous areas of the device, you can connect multiple rectangular regions together using the Merge command.

For devices that do not support the Merge command (MAXTM II devices), you can limit entity placement to a sub-area of a LogicLock region to create non-rectangular constraints. In these devices, construct a LogicLock hierarchy by creating child regions inside of parent regions, and then use the Reserved option to control which logic can be placed inside these child regions. Setting the Reserved option for the region prevents the Fitter from placing nodes that are not assigned to the region inside the boundary of the region.