F-Tile Interlaken Intel® FPGA IP User Guide

ID 683622
Date 7/08/2024
Public
Document Table of Contents

1.5. F-Tile Interlaken IP Round-trip Latency

The table includes the round-trip latency numbers for specific variants. Altera measures the latency numbers for the longest logical datapath for two highest lane rate and number of lanes variants, with FIFO level at 50 for the first packet.
Table 7.  Round-trip Latency NumbersAltera uses the Quartus® Prime Pro Edition software version 23.1 for the numbers in this table
Note: Latency is calculated based on recommended user clock frequency in design example
Transfer Mode Protocol Transceiver Mode PMA Type Data Rate (Gbps) Number of Lanes Latency (ns)
Interleaved (Number of segments = 4) Interlaken NRZ FGT 25.78125 12 774.28
PAM4 FGT 53.125 6 1037.14
53.125 12 1,043.33
FHT 106.25 3 1,045.71
106.25 4 1,088.57
Interlaken Look-aside NRZ FGT 25.78125 12 302.86
PAM4 FGT 53.125 6 562.86
FHT 106.25 3 574.29