Hi,
As part of a design that I'm investigating, I am looking at connecting a number of FPGA based MACs to a dedicated broadcom switch chip. The difficulty with this is that to interface both chips, I need to have two closely coupled and redundant PHY .
Is it possible to connect two MAC (SGMII) directly point-to-point, bypassing the PHY completely? Or is it necessary to have at least some PHY functionality, even if it is a point to point link?
Kind regards,
Stephen