F-Tile Interlaken Intel® FPGA IP Design Example User Guide

ID 683069
Date 9/30/2024
Public

2.6. Reset

In the F-Tile Interlaken Intel® FPGA IP, you initiate the reset (reset_n=0) and hold until the IP returns a reset acknowledge (reset_ack_n=0). After the reset is removed (reset_n=1), the reset acknowledge returns to its initial state (reset_ack_n=1).
In the design example, a rst_ack_sticky register holds the reset acknowledge assertion and then triggers the removal of the reset (reset_n=1). You can use alternative methods that fit your design needs.
Important: Where the internal serial loopback is required, you must release TX and RX of the F-tile separately in a specific order. Refer to the system console script for more information.
Figure 9. Reset Sequence in NRZ Mode
Figure 10. Reset Sequence in PAM4 Mode