Design of an Auto-Negotiation Logic for SGMII Applications

With the development of Ethernet technology, in order to achieve communication between Ethernet devices at different rates, this article focuses on the Auto-Negotiation function of the SGMII specification, while introducing the generation and basic principles of Auto-Negotiation. This design implements the Auto-Negotiation function of 10/100/1000 M three-speed Ethernet based on the IEEE802.3z protocol in the form of Verilog hardware description and conducts simulation verification. The simulation results indicate that this design achieves efficient transmission of Ethernet data and has high application and promotion value.