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About Kyokko†

Kyokko is Xilinx's Aurora 64b66b compatible high-speed serial link controller. It is named after the Aurora, meaning "polar right" in Japanese (Kyokko-極光). Works with both Xilinx and Intel FPGAs.

Features†

Kyokko supports basic features of Aurora 64b66b protocol:

• Flow controls: NFC (native flow control) and UFC (user flow control)
• Channel bonding: basically for QSFP connector applications, but should work with any # of lanes
• 10+ Gbps on most FPGAs, up to 25 Gbps on Xilinx UltraScale+ FPGAs

Supported boards/devices†

• Xilinx
  • Kintex Ultrascale (KCU1500, Avnet KU040 DB)
  • Virtex Ultrascale+ (Alveo U50, U55, U200)
• Intel
  • Cyclone 10 GX (Intel Cyclone 10 GX Development Board)
  • Arria 10 GX (Gidel HawkEye)
  • Stratix 10 L-tile (DE10-Pro Rev. B): work in progress

Source code repository†

The source code SVN repository is: https://lut.eee.u-ryukyu.ac.jp/svn/kyokko/

References†

• Akinobu Tomori and Yasunori Osana: "Kyokko: a vendor independent high speed serial communication controller.'' Proc. of the 2021 International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies (HEART), Jun. 2021.