I am trying to understand what function the USB 2.0 PHY (CY7C68013A-56LTXC) on the Cyclone 10 GX development board is providing. More specifically since this device also contains a programmable microcontroller I am looking for any information on what this is programmed to do on the development board or source code if it is available.
Welcome to INTEL forum. The USB 2.0 PHY (CY7C68013A-56LTXC) on the Cyclone 10 GX development board is use to connect pc to dev kit via on-board USB port or an external USB-Blaster II header and this device is used for PFL configuration mode. For more refer to 4.4. FPGA Configuration