Does jetson NX module support the pciE lane polarity reversal feature?

Autonomous Machines Jetson & Embedded Systems Jetson Xavier NX
3

Hi,

I am assuming this question is for M.2 Key M slot, because Key E supports only one lane and there is no concept of lane reversal,

Jetson NX M.2 Key M slot supports both lane reversal and polarity reversal. Hardware takes care of it, no need for extra software programming. However there is one limitation, lane reversal fails if we want to get the link up in x1. If you are using complete x4, then lane reversal works without any issue.

Thanks,
Manikanta