In the TX path, a TX FIFO is available to control the data flow between the PCS and PMA clock domain. Similarly, the elastic buffer is available in the RX path. In the RX path, the datapath is tested with the buffer and in bypass mode.
In the TX path, a TX FIFO is available to control the data flow between the PCS and PMA clock domain. Similarly, the elastic buffer is available in the RX path. In the RX path, the datapath is tested with the buffer and in bypass mode.