On Post Map and Post Route model simulations intermittently I get few X bytes. I set up a trace check for source in ModelSim and found out that it leads to X_BUF with 658 ps pathpulse which connects to vitalbehavior (gsr, prld, dly of clk, set, rst etc). It's only bit 0 of the bus that goes to X at times.
What do I do to get consistent timing?
Best wishes.