Intel® Arria® 10 Transceiver PHY User Guide

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ID 683617
Date 3/28/2022
Public
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2.6.2.1.1. TX FIFO and RX FIFO

In 10GBASE-R configuration, the TX FIFO behaves as a phase compensation FIFO and the RX FIFO behaves as a clock compensation FIFO.

In 10GBASE-R with 1588 configuration, both the TX FIFO and the RX FIFO are used in register mode. The TX phase compensation FIFO and the RX clock compensation FIFO are constructed in the FPGA fabric by the PHY IP automatically.

In 10GBASE-R with KR FEC configuration, you use the TX FIFO in phase compensation mode and the RX FIFO behaves as a clock compensation FIFO.

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