Visible to Intel only — GUID: pde1441400990093
Ixiasoft
Visible to Intel only — GUID: pde1441400990093
Ixiasoft
5.10. Communication Ports
The development board supports a 10/100/1000 BASE-T Ethernet connection using a Marvell 88E1111 PHY device and the Intel Triple-Speed Ethernet Megacore MAC function. The device is an auto-negotiating Ethernet PHY with an SGMII interface to the FPGA. The Intel® Arria® 10 GX FPGA device can communicate with the LVDS interfaces at up to 1.25 Gbps. The MAC function must be provided in the FPGA for typical networking applications. The Marvell 88E1111 PHY uses 2.5-V and 1.2-V power rails and requires a 25-MHz reference clock driven from a dedicated oscillator. It interfaces to an RJ-45 connector with internal magnetics that can be used for driving copper lines with Ethernet traffic.
Schematic Signal Name | 88E1111 PHY (U35) Pin Number | Description |
---|---|---|
ENET_LED_LINK1000 | 60/73 | 1000-Mb link LED |
ENET_LED_LINK100 | 74 | 100-Mb link LED |
ENET_LED_LINK_10 | 59/76 | 10-Mb link LED |
ENET_LED_TX | 68 | TX data active LED |
ENET_LED_RX | 69 | RX data active LED |
ENET_SGMII_TX_P | 82 | SGMII transmit |
ENET_SGMII_TX_N | 81 | SGMII transmit |
ENET_SGMII_RX_P | 77 | SGMII receive |
ENET_SGMII_RX_N | 75 | SGMII receive |
ENET_XTAL_25MHZ | 55 | 25 MHz clock |
ENET_T_INTn | 23 | Management bus Interrupt |
ENET_RSET | 30 | Device reset |
MDIO_T | 24 | Management bus data input/output |
MDC_T | 25 | Management bus data clock |
MDI_P0 | 29 | Management bus data |
MDI_N0 | 31 | Management bus data |
MDI_P1 | 33 | Management bus data |
MDI_N1 | 34 | Management bus data |
MDI_P2 | 39 | Management bus data |
MDI_N2 | 41 | Management bus data |
MDI_P3 | 42 | Management bus data |
MDI_N3 | 43 | Management bus data |