Why doesn’t o_rx_pcs_ready assert on my 400GE-8 w/PTP variant of the F-tile Ethernet Intel® FPGA Hard IP after reconfiguration from 100GE-4 w/PTP variant in the same reconfiguration group, when the 100GE-4 w/PTP variant is set as the startup profile?

Due to a problem in Intel® Quartus® Prime Pro Edition Software version 22.4, the 400GE-8 w/PTP variant of the F-tile Ethernet Intel® FPGA Hard IP will fail to function correctly (o_rx_pcs_ready fails to assert) after being dynamically reconfigured from a 100GE-4 w/PTP variant of the F-tile Ethernet Intel® FPGA Hard IP if the 100GE-4 w/PTP variant is chosen as the “startup profile”. Both of the intellectual property (IP) variants exist within the same “Dynamic Reconfiguration Group”.

To work around this problem, assign the 400GE-8 w/PTP variant of the F-tile Ethernet Intel® FPGA Hard IP as the “startup profile” and then dynamically reconfigure to the 100GE-4 w/PTP variant of the F-tile Ethernet Intel® FPGA Hard IP.

This problem has been fixed starting in version 23.2 of the Intel® Quartus® Prime Pro Edition Software.