F-Tile Low Latency Ethernet 10G MAC Intel® FPGA IP User Guide

ID 720985
Date 4/18/2024
Public
Document Table of Contents

3.6.1.1.3. Dual Clock FIFO

The bit skew of the dual clock FIFO gray-coded pointers must be within one 312.5 MHz clock period.

The timing constraint file uses the set_net_delay to constraint the fitter placement and set_max_skew to perform timing check on the paths. For a project with very high device utilization, Intel recommends that you implement addition steps like floor planning or Logic Lock to aid the place-and-route process. The additional steps can give a more consistent timing closure along these paths instead of only relying on the set_net_delay.