F-Tile JESD204B Intel® FPGA IP User Guide

ID 723907
Date 4/23/2024
Public
Document Table of Contents

2.6. Channel Bonding

The F-Tile JESD204B IP supports transmitter channel bonding—bonded (PMA and System bonding) and non-bonded modes.

The channel bonding mode that you select may contribute to the transmitter channel-to-channel skew. A bonded transmitter datapath clocking provides low channel-to-channel skew as compared to non-bonded channel configurations.

F-Tile JESD204B IP supports Transmitter System and PMA bonding when the number of lanes selected fall within the range of 2, 4, 6, and 8.

For non-bonded channel configuration, lanes parameter value 1–8 are supported.

  • In MAC and PHY integrated mode, you can generate up to 8 channels.
  • In bonded channel configuration, the lower transceiver clock skew for all channels result in a lower channel-to-channel skew.
    • For Agilex™ 7 and Agilex™ 9 devices, you must use contiguous channels to enable channel bonding with NRZ PMA transceiver channels. Cross-tile channel bonding is not supported.
  • In non-bonded channel configuration, the transceiver clock skew is higher and latency is unequal in the transmitter phase compensation FIFO for each channel. This may result in a higher channel-to-channel skew.