Can the HPS EMAC RGMII on the cyclone V be connected to an external MAC interface?

Hi ophied,

I try to consult my team member.

Are you using the rgmii ethernet from the HPS dedicated IO's or from the FPGA IO's. with HPS ethernet FPGA IO you need to use the gmii to rgmii convertor.

Can refer to this document:

https://www.intel.com/content/www/us/en/docs/programmable/683130/22-2/functional-description-09535.html

Thanks.

Regards,

Aik Eu