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2–24
Reference Manual
Altera Corporation
Arria GX Development Board
October 2007
Standard Communication Ports
High-Speed Mezzanine Connector Interface
The high-speed mezzanine connector (HSMC) is an Altera-developed
specification, which allows users to expand the functionality of the
development board through the addition of daughter cards (HSMC
cards).
The HSMC interface specification allows for up to eight transceiver
channels, a full SPI 4.2 interface (18 LVDS channels), and SMBus
management signals. The LVDS channels can be used for CMOS
signaling as well as LVDS. Due to limited transceiver resources, four
transceiver channels route to the HSMC interface.
f
For more information about the Altera HSMC interface, refer to the
HSMC specifications on the Altera website,
www.altera.com
.
Table 2–23
lists the HSMC interface component reference and
manufacturing information.
PCIE_PERSTn
Fundamental reset
LVTTL out
PCIE_REFCLKp
PCIE_REFCLKn
Reference clock input
REFCLK in
12V
Power
3.3V
Power
3.3VAUX
Power
GND
Ground
Table 2–22. PCIe Edge Connector Pin-Out (Part 2 of 2)
Schematic Signal Name
Description
Signal Type
Table 2–23. HSMC Interface Component Reference and Manufacturing Information
Board
Reference
Description
Manufacturer
Manufacturer Part
Number
Manufacturer
Website
J2
High speed mezzanine
connector
Samtec
ASP-122953-01
www.samtec.com