In reply to chr_sue:
Actually in real time it will be 0 or 1 but in GLS(gate simulations) there will be “X” and I am checking read margin so I sweep delay and it is expected to show x at some point of delay but registers goes to X and recovers after passing that region. During that X region I used to get UVM_HAS_X error which need to be disabled for that register.
How to disable X for that particular region or avoid UVM_ERRORS?