Synopsys ASIC Digital Design Engineer I interview questions

Was asked about basic protocols for PCIE. Basic questions on CDC. Types of violations that the CDC tools complain - eg: no_sync, combi logic before double sync, multi bit double syncing, re-convergence etc. Code async reset FF and sync reset FF. What are the dis/advantages of one over the other.

How to synchronize a data bus, which has no control. Interviewer was basically trying to poke at the approach to solve that problem. Write clock domain has a burst rate of 80 writes per 100 clocks. Read clock domain reads at a rate of 8 data words in 10 clocks. Data Buffer sizing to not cause overflow Asked to design a 2 request arbiter.

A module has 3 input and 5 output ports. Had a discussion for rest of the interview on that design. Basically the interviewer was trying to understand what I need to come up with a design. Like, do you a clock, what are you control signals, what is the functionality etc