Altera Cyclone V E FPGA Development Board - Manual (Page 33)

Chapter 2: Board Components 2–25
Components and Interfaces
March 2013 Altera Corporation Cyclone V E FPGA Development Board
Reference Manual
Figure 2–7 shows the RGMII interface between the FPGA (MAC) and Marvell 88E1111
PHY.
Table 2–20 lists the Ethernet PHY interface pin assignments.
Figure 2–7. RGMII Interface between FPGA (MAC) and Marvell 88E1111 PHY
10/100/1000 Mbps
Ethernet MAC
Marvell 88E1111
PHY
Device
Transformer RJ45
RGMII Interface
TXD[3:0]
RXD[3:0]
CAT 5 UTP:
- 10BASE-T
- 100BASE-TX
- 1000BASE-T
Table 2–20. Ethernet PHY Pin Assignments, Signal Names and Functions (Part 1 of 3)
Board
Reference
Schematic Signal Name
Cyclone V E FPGA
Pin Number
I/O Standard Description
Ethernet PHY A (U14)
8 ENETA_GTX_CLK H27 2.5-V CMOS 125-MHz RGMII transmit clock
23 ENETA_INTN J27 2.5-V CMOS Management bus interrupt
60 ENETA_LED_DUPLEX — 2.5-V CMOS Duplex or collision LED. Not used
70 ENETA_LED_DUPLEX — 2.5-V CMOS Duplex or collision LED. Not used
76 ENETA_LED_LINK10 — 2.5-V CMOS 10-Mb link LED
74 ENETA_LED_LINK100 — 2.5-V CMOS 100-Mb link LED
73 ENETA_LED_LINK1000 — 2.5-V CMOS 1000-Mb link LED
58 ENETA_LED_RX — 2.5-V CMOS RX data active LED
69 ENETA_LED_RX — 2.5-V CMOS RX data active LED
68 ENETA_LED_TX — 2.5-V CMOS TX data active LED
25 ENETA_MDC G29 2.5-V CMOS Management bus data clock
24 ENETA_MDIO L25 2.5-V CMOS Management bus data
28 ENETA_RESETN N22 2.5-V CMOS Device reset
2 ENETA_RX_CLK T23 2.5-V CMOS RGMII receive clock
95 ENETA_RX_D0 N26 2.5-V CMOS RGMII receive data bus
92 ENETA_RX_D1 N27 2.5-V CMOS RGMII receive data bus
93 ENETA_RX_D2 N24 2.5-V CMOS RGMII receive data bus
91 ENETA_RX_D3 N25 2.5-V CMOS RGMII receive data bus
94 ENETA_RX_DV L25 2.5-V CMOS RGMII receive data valid
11 ENETA_TX_D0 J28 2.5-V CMOS RGMII transmit data bus
12 ENETA_TX_D1 J29 2.5-V CMOS RGMII transmit data bus
14 ENETA_TX_D2 H29 2.5-V CMOS RGMII transmit data bus
16 ENETA_TX_D3 H30 2.5-V CMOS RGMII transmit data bus
9 ENETA_TX_EN F30 2.5-V CMOS RGMII transmit enable
55 ENETA_XTAL_25MHZ — 2.5-V CMOS 25-MHz RGMII transmit clock
29 ENETA_MDI_P0 — 2.5-V CMOS Media dependent interface
31 ENETA_MDI_N0 — 2.5-V CMOS Media dependent interface