Intel® Cyclone® 10 GX Transceiver PHY User Guide

ID 683054
Date 4/14/2023
Public
Document Table of Contents
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5.2.2.6. 64B/66B Decoder and Receiver State Machine (RX SM)

The 64B/66B decoder reverses the 64B/66B encoding process. The decoder block also contains a state machine (RX SM) designed in accordance with the IEEE802.3-2008 specification. The RX SM checks for a valid packet structure in the data sent from the remote side. It also performs functions such as sending local faults to the Media Access Control (MAC)/Reconciliation Sublayer (RS) under reset and substituting error codes when the 10GBASE-R and 10GBASE-KR PCS rules are violated.

Note: The 64B/66B decoder is available to implement the 10GBASE-R protocol.