Intel® Arria® 10 Transceiver PHY User Guide

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ID 683617
Date 3/28/2022
Public
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3.2.2. Receiver Input Pins

Receiver input pins can be used as an input reference clock source to transceiver PLLs. However, they cannot be used to drive core fabric.

The receiver input pin drives the feedback and cascading clock network, which can then feed any number of transmitter PLLs on the same side of the device. When a receiver input pin is used as an input reference clock source, the clock data recovery (CDR) block of that channel is not available. As indicated in , only one RX differential pin pair per three channels can be used as an input reference clock source at any given time.

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