E-Tile Transceiver PHY User Guide

ID 683723
Date 9/08/2023
Document Table of Contents
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3.1.1. Transmitter PMA

The transmitter data path of the PMA comprises of a transmitter buffer (TX Buffer), transmitter equalizer (TX EQ), and a serializer driven by a clock network dedicated to each transceiver channel.

Parallel data received from the EHIP_LANE, EHIP_CORE, RS-FEC, and PMA Direct is serialized by the serializer. This serialized data is de-emphasized to compensate for the intersymbol interference (ISI) losses using an equalizer. The transmitter buffer at the end of the PMA data path shapes the signal and drives the serialized data off the chip.