This read-only CwrCwErroredSecond value reports the cumulative Codeword Errored Seconds detected since link power-up, as captured at the timestamp recorded in cwr1MinUpdateTime. It gives an admin a minute-resolution errored-seconds figure for pinpointing brief error events more precisely than the hourly entry allows. For example, an admin narrowing down a short-lived issue reported by a user would check the minute-by-minute cwr1MinErroredSeconds entries around the reported time.