Does the physical coding sublayer (PCS) of Cyclone V SE devices support 1000BASE-KX?

Hi,

Cyclone V devices support 1000BASE-X PHY. Please check the following link: https://www.intel.com/content/www/us/en/docs/programmable/683586/current/gigabit-ethernet.html

1000BASE-KX is supported by Arria V devices. Refer https://www.intel.com/content/www/us/en/docs/programmable/683573/current/1000base-x-and-1000base-kx-supported.html

Regards