We have some trouble with USB Super Speed signal quality on a i.MX8MQ based custom board. I noted that in the Reference Manual Rev 1 (see ) there is a chapter "220.127.116.11 USB3_GLUE register description" with a lot of registers that most likely have an influence on the signal (like pcs_tx_deemph_6db or tx_vboost_lvl). Most of the registers are only described as "USB3.0 PHY Signal". Is there some more detailed description available somewhere? It seems that these are not standard names. At least I didn't find anything in the USB standard or the web with these names.
Thanks in advance for any hints.
With kind regards