Altera Stratix IV GX FPGA Development Board - Manual (Page 42)

2–34 Chapter 2: Board Components
Components and Interfaces
Stratix IV GX FPGA Development Board August 2012 Altera Corporation
Reference Manual
Table 2–35 lists the Ethernet PHY interface pin assignments.
Table 2–36 lists the Ethernet PHY interface component reference and manufacturing
information.
HSMC
The development board contains two HSMC interfaces, port A and port B. These
HSMC interfaces support both single-ended and differential signaling. The HSMC
interface also allows JTAG, SMB, clock outputs and inputs, as well as power for
compatible HSMC cards. The HSMC is an Altera-developed open specification, which
allows you to expand the functionality of the development board through the
addition of daughtercards.
f
For more information about the HSMC specification such as signaling standards,
signal integrity, compatible connectors, and mechanical information, refer to the
High
Speed Mezzanine Card (HSMC) Specification manual.
The HSMC connector has a total of 172 pins, including 120 signal pins, 39 power pins,
and 13 ground pins. The ground pins are located between the two rows of signal and
power pins, acting both as a shield and a reference. The HSMC host connector is
based on the 0.5 mm-pitch QSH/QTH family of high-speed, board-to-board
connectors from Samtec. There are three banks in this connector. Bank 1 has every
third pin removed as done in the QSH-DP/QTH-DP series. Bank 2 and bank 3 have
all the pins populated as done in the QSH/QTH series.
Table 2–35. Ethernet PHY Pin Assignments, Signal Names and Functions
Board Reference Description Schematic Signal
Name
I/O Standard
Stratix IV GX
Device
Pin Number
U21.82 SGMII TX data ENET_TX_P
LVDS
L29
U21.81 SGMII TX data ENET_TX_N K29
U21.77 SGMII RX data ENET_RX_P AC31
U21.75 SGMII RX data ENET_RX_N AC32
U21.25 Management bus control ENET_MDC
2.5-V
AH34
U21.24 Management bus data ENET_MDIO M33
U21.23 Management bus interrupt ENET_INTn R30
U21.28 Device reset ENET_RESETn V31
Table 2–36. Ethernet PHY Component Reference and Manufacturing Information
Board Reference Description Manufacturer
Manufacturing
Part Number
Manufacturer
Website
U21 Ethernet PHY BASE-T device
Marvel
Semiconductor
88E1111-B2-CAAIC000 www.marvell.com