Can I connect an Ethernet PHY controller using an RMII interface connected to the I/O on the FPGA side of a Cyclone® V SoC FPGA with an Ethernet MAC (EMAC) controller on the Hard Processor System (HPS) side?

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Is it possible to connect an Ethernet PHY controller with an RMII interface connected to the FPGA side I/O of a Cyclone® V SoC FPGA with an Ethernet MAC (EMAC) controller on the Hard Processor System (HPS) side?

SoC FPGAs

Category: SoCs
tool:-
Device: Cyclone® V

It is not possible to output directly from EMAC on the HPS side to the FPGA side with RMII.
The connection from the EMAC to the FPGA side is the GMII interface, so if you want to implement the RMII interface with the I/O on the FPGA side, you need to prepare the logic to convert from GMII to RMII on the FPGA side.

Previously, there was an error in the handbook regarding RMII support, which has been corrected below.
http://www.altera.com/support/kdb/solutions/fb87064.html

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