Intel® Cyclone® 10 GX Transceiver PHY User Guide

ID 683054
Date 4/14/2023
Document Table of Contents Clock Data Recovery in Auto Lock Mode

The step numbers correspond to the numbers in the following figure:

  1. Assert rx_analogreset and rx_digitalreset. Ensure that rx_cal_busy is low. You must reset the PCS by asserting rx_digitalreset every time you assert rx_analogreset.

  2. Deassert rx_analogreset after a minimum duration of 70 μs.
  3. Ensure rx_is_lockedtodata is asserted for tLTD (minimum of 4 μs) before deasserting rx_digitalreset.
Figure 150. Resetting the Receiver During Device Operation (Auto Mode)
Note: rx_is_lockedtodata toggles when there is no data at the receiver input. rx_is_lockedtoref is a "do not care" when rx_is_lockedtodata is asserted.