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The EVB-KSZ9893 evaluation board is a plug-in card that interfaces directly with a mat- ing Microchip host processor or controller board, such as the SAMA5D3 Ethernet Development System (EDS) board. It features the KSZ9893, a highly integrated net- working device that incorporates a layer-2+ managed Gigabit Ethernet switch, two 10BASE-T/100BASE-TX/ 1000BASE-T physical layer transceivers (PHYs) and associated MAC units, and one MAC port configured as the RGMII interface. The board’s two PHY ports are connected to RJ45 Ethernet jacks with integrated magnetics, and the RGMII MAC interface is brought out to a high-speed multi-pin (HS) connector.
Together, the EVB-KSZ9893 and the SAMA5D3-EDS provide a highly-flexible platform for evaluation of basic PHY/Switch features via static Control-Status Registers (CSRs) and development of firmware for advanced MAC/Switch features that require interaction with upper network layers (for example, RSTP/MSTP).