The traffic_gen_pass signal will go high if there are no bit errors, and the test loops for a specific number of cycles. In the infinite loop test mode, the traffic_gen_pass signal will never go high.
The traffic_gen_fail signal goes high whenever a pnf_per_bit (pnf = pass not fail) signal goes low, regardless of how many loops the test runs.
The traffic_gen_timeout signal goes high when there is a timeout due to a problem with the traffic generator.
All traffic generator status signals will remain low if the interface fails calibration.