GTS Transceiver PHY User Guide

ID 817660
Date 7/08/2024
Public
Document Table of Contents

3.8.5. Run-time Reset Sequence—RX

Figure 55. Run-time Reset Sequence—RX

The figure above illustrates the following run-time RX reset sequence:

  1. Assert i_rx_reset.
  2. o_rx_ready deasserts, indicating that the RX datapath is no longer operational.
  3. o_rx_is_lockedtoref and o_rx_is_lockedtodata deasserts.
  4. o_rx_reset_ack asserts, indicating that the RX datapath is fully in reset. o_rx_reset_ack stays asserted until i_rx_reset deasserts.
  5. You then deassert i_rx_reset to bring RX out of reset.
  6. o_rx_is_lockedtoref asserts as the CDR locks to the reference clock.
  7. o_rx_is_lockedtodata asserts as the CDR locks to the recovered data.
  8. o_rx_ready asserts.
Note: o_rx_is_lockedtoref and o_rx_is_lockedtodata may have different behavior in simulation.