Dynamic Function Exchange Design - Dynamic Function Exchange Design - 2026.1 English - UG892

Dynamic function exchange (DFX) lets you reconfigure portions of a running AMD device in real time with a partial bitstream. This process changes the design's features and functions. You must plan reconfigurable modules carefully to ensure they operate correctly and deliver maximum performance.

Follow strict DFX design process to enable glitch-less operation during partial bitstream updates. Reduce interface signals, floorplan device resources, and assign pins appropriately. Adhere to special DFX design rule checks (DRCs) for compliance. Plan your programming method to assign configuration I/O pins correctly.

For details about the DFX tool flow and features, refer to the following documents:

• Vivado Design Suite User Guide: Dynamic Function eXchange (UG909)
• Vivado Design Suite Tutorial: Dynamic Function eXchange (UG947)