Hello,
I would like to build a prototype of a PHY - MAC connection with some pins (RX or TX) cut in order to try to establish an unidirectionnal Ethernet connection. The connection between PHY and MAC is should be a GMII or RGMII preferably. I saw these products of yours :
DP83867ERGZ SGMII 1000M/100M/10M Ethernet PHY Evaluation Module
DP83867ERGZ RGMII 1000M/100M/10M Ethernet PHY Evaluation Module
DP83867IRPAP-EVM 1000M/100M/10M Ethernet PHY Evaluation Module
I am particulary interested in the last one that provides both RGMII and GMII connection. However, do you provide single board computers, with a MAC and a GMII/RGMII interface, and without a PHY ? This would permit me to link it with the PHY EVM.
Plus, as I plan to cut the RX wire between MAC and PHY, I would like to know if there is a protocol between the two devices that allow them to know the capabilities of each other, like an auto negociation protocol. Indeed, I saw on a forum that a MAC with MII and GMII capabilities would detect to which cable it is connected.
If you had this information too this would be nice.
Thank you!
Pierre GONDOIS
