Intel® Arria® 10 Hard Processor System Technical Reference Manual

ID 683711
Date 1/10/2023
Public

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18.3. EMAC Signal Description

The EMAC provides a variety of PHY interfaces and control options through the HPS and the FPGA I/Os.
For designs in which the HPS is pin-limited, the EMAC signals can be routed through the FPGA as any one of the following interfaces by using soft adaptor logic in the FPGA:
  • RMII/RGMII
  • MII/GMII
  • SGMII

The figure below depicts a design which routes the EMAC0 and EMAC1 signals through the FPGA to provide an RMII and SGMII interface. EMAC2 is routed through the HPS.

Refer to the "EMAC FPGA Interface Initialization" section to find out more information about configuring EMAC interfaces through FPGA.

Figure 87. EMAC to FPGA Routing Example