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CPU to FPGA Communication channel Using Direct RGMII

Hi All,

I need to provide an ethernet interface between an FPGA and a DaVinci DM8184.  Can I directly connect the RGMII ports, or do I need to insert PHY's?  I've found this paper by a TI FAE -  "Inter-DM6467 Communications Using Direct GMII Connections". It describes the hardware a software implementation of a PHY-less GMII connection, but I've not found an equivalent paper on RGMII.