Altera 100G Development Kit, Stratix IV GT Edition Instrukcja Użytkownika Pobierz pdf (Strona 72)

2–64 Chapter 2: Board Components

Components and Interfaces

100G Development Kit, Stratix IV GT Edition Reference Manual September 2010 Altera Corporation

Ethernet RGMII Interface

The Stratix IV GT 100G development board incorporates a triple speed 10/100/1000

Base-T Ethernet RGMII interface.

The implementation uses an auto-negotiating Marvell 88E1111 Ethernet PHY (U66)

with an RGMII interface to the FPGA and interfaces to an RJ-45 connector (J49) with

internal magnetics that can be used for driving copper lines with Ethernet traffic.

Figure 2–11 shows the RGMII interface between the FPGA and Marvell 88E1111 PHY.

Table 2–41 shows the Ethernet RGMII interface pin connection to the FPGA for the

Ethernet PHY.

Figure 2–11. Ethernet RGMII Interface

Stratix IV GT

FPGA

(U44)

RGMII

Marvell 88E1111

Ethernet PHY

(U66)

TX/RX

RJ45

Connector (J49)

Table 2–41. Ethernet RGMII Interface Pin Assignments, Signal Names and Functions (Part 1 of 2)

Board

Reference

Description

Schematic Signal

Name

I/O Standard

Stratix IV GT

Device Pin

Number

Other

Connections

U66.28 Ethernet reset

ENET_RESETn

LVCMOS

AV35 —

U66.24 Ethernet management bus data

ENET_MDIO

AV38 —

U66.25 Ethernet management bus control

ENET_MDC

AJ32 —

U66.8 Ethernet clock

ENET_GTX_CLK

AP37 —

U66.9 Ethernet transmit enable

ENET_TX_EN

AJ31 —

U66.94 Ethernet receive data valid

ENET_RX_DV

AV37 —

U66.11 Ethernet transmit data

ENET_TXD0

AK31 —

U66.12 Ethernet transmit data

ENET_TXD1

AK32 —

U66.14 Ethernet transmit data

ENET_TXD2

AW36 —

U66.16 Ethernet transmit data

ENET_TXD3

AW37 —

U66.95 Ethernet receive data

ENET_RXD0

AR35 —

U66.92 Ethernet receive data

ENET_RXD1

AT36 —

U66.93 Ethernet receive data

ENET_RXD2

AU34 —

U66.91 Ethernet receive data

ENET_RXD3

AT34 —

U66.2 Ethernet receive clock

ENET_RX_CLK

U39 —

U66.31 Media dependent interface 0 (N)

MDI_N0

— J49.2

U66.29 Media dependent interface 0 (P)

MDI_P0

— J49.1

U66.34 Media dependent interface 1 (N)

MDI_N1

— J49.6

U66.33 Media dependent interface 1 (P)

MDI_P1

— J49.3

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 78 79 80

Komentarze do niniejszej Instrukcji

Brak uwag

Altera 100G Development Kit, Stratix IV GT Edition Instrukcja Użytkownika Strona 72

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Urządzenia pomiarowe Altera 100G Development Kit, Stratix IV GT Edition