On 6/30/26 17:13, Nazle Asmade, Muhammad Nazim Amirul wrote:

Yes, Agilex5 has the same concept. The GMII-to-RGMII converter is a 
Quartus soft IP instantiated in the FPGA fabric — equivalent to the 
CycloneV EMAC splitter. The XGMAC outputs GMII signals to the FPGA 
fabric, the soft IP converts them to RGMII, and the RGMII signals then 
go through the FPGA HVIO pins to the external Marvell 88E1512 PHY.

Does this converter need any special config, and does it expose any
control registers ? or is it fully autonomous ?

If it's fully autonomous, can you detect its presence through some
capability registers or something like that ?


Maxime