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Top 10 Semiconductor Interview Questions on PCIe and CXL, with Answers
The PCIe and CXL questions that come up most in semiconductor interviews cover ten areas: how PCIe evolved to PAM4 and FLIT mode, the three CXL protocols, how CXL shares the PCIe physical layer, coherency, error handling, power states, signal integrity at 64 GT/s and above, the protocol stack, use cases, and link bring-up debug. Interviewers are rarely after a recited specification. They want to see that you can explain why each feature exists, …