I am using a transceiver QSFP within an UltraScale+ 7P FPGA and I am experimenting some issues with the PMA-PCS interface IP generated with Transceiver Wizard 1.7.
My setup is a QSFP module connected to the FPGA, with some ILA probes on rx data output (PCS and MAC custom RTL) and an Ethernet card (10Gbs) sending data.
In normal operation, when I connect the cable to the QSFP module and on the other side the eth card I can transfer data without issues. But, when I unplug the cable on the QSFP module, the output on the PMA is not as expected.
Instead of having a random data (raw scrambled data), I get an stable output of 0xaaaaaaaa.