Jul 22, 2015 #1 G gater Newbie level 1 Joined Jul 22, 2015 Messages 1 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 8 Is it possible to do MAC to MAC interface between different TI controllers? First controller uses MII interface while second controller uses RGMII interface. Is RGMII is back compatible with MII Interface?
Is it possible to do MAC to MAC interface between different TI controllers? First controller uses MII interface while second controller uses RGMII interface. Is RGMII is back compatible with MII Interface?
Jul 22, 2015 #2 FvM Super Moderator Staff member Joined Jan 22, 2008 Messages 52,830 Helped 14,775 Reputation 29,835 Reaction score 14,207 Trophy points 1,393 Location Bochum, Germany Activity points 299,911 First point, it's not sure that the controller support MAC-to-MAC connection without additional logic. It may work with RMII. Secondly, make sure that both controllers support RMII. Most recent controllers with MII interface do. RGMII (Gigabit interface) is not necessarily downward compatible to RMII. Check for explicite RMII support. To be on the safe side, I would provide a PLD connecting both network interfaces.
First point, it's not sure that the controller support MAC-to-MAC connection without additional logic. It may work with RMII. Secondly, make sure that both controllers support RMII. Most recent controllers with MII interface do. RGMII (Gigabit interface) is not necessarily downward compatible to RMII. Check for explicite RMII support. To be on the safe side, I would provide a PLD connecting both network interfaces.