With 24 x 25.78125 Gb/s configurations (2048-bit or 1536-bit AXI4-Stream interface), you can decommission four lanes to
have a 20 x 25.78125 Gb/s ILKNF subsystem (2048-bit or
1536-bit AXI4-Stream interface).
Note: You must still run
the core at the frequencies provided in Interlaken Configuration Selection for the 24 x 25.78125 Gb/s configurations (2048-bit
or 1536-bit AXI4-Stream interface).