GTS Transceiver PHY User Guide

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

3.8.7. Run-time Reset Sequence—TX with FEC

Figure 57. Run-time Reset Sequence—TX with FEC

As illustrated in the above figure, the following is the run-time reset sequence for TX with forward error correction (FEC):

  1. Assert i_tx_reset.
  2. o_tx_ready deasserts, indicating that the TX datapath is no longer operational.
  3. o_tx_reset_ack asserts, indicating that the TX datapath is in reset.
  4. You then deassert i_tx_reset to bring TX out of reset.
  5. o_tx_am_gen_start asserts, you then send at least two alignment markers on the tx_parallel_data bus.
  6. Assert i_tx_am_gen_2x_ack, indicating that at least two alignment markers have been sent.
  7. o_tx_am_gen_start deasserts, you then deassert i_tx_am_gen_2x_ack.
  8. o_tx_ready asserts.