ID 683779
Date 11/23/2021
Public

## 1.4.1.7. Bit-Error Rate (BER) Monitor

The BER monitor block conforms to the 10GBASE-R protocol specification as described in IEEE 802.3-2008 clause-49. After block lock is achieved, the BER monitor starts to count the number of invalid synchronization headers within a 125-µs period. If more than 16 invalid synchronization headers are observed in a 125-µs period, the BER monitor provides the status signal to the FPGA fabric, indicating a high bit error rate condition.

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