Arria® V Device Handbook: Volume 2: Transceivers

ID 683573
Date 5/29/2020
Public
Document Table of Contents

1.2.2.6.1. Phase Compensation Mode

The receiver phase compensation FIFO compensates for any phase difference between the read and write clocks for the receiver status and data signals.

The low-speed parallel clock feeds the write clock; the FPGA fabric interface clock feeds the read clock. The clocks must have 0 ppm difference in frequency or a FIFO underrun or overflow condition may result.

The receiver phase compensation FIFO supports various clocking modes on the read and write clocks depending on the transceiver configuration.