Altera Stratix II GX PCI Express Development Board - Manual (Page 45)

Altera Corporation Reference Manual 2–35
August 2006 Stratix II GX PCI Express Development Board
Board Components & Interfaces
High-Speed Mezzanine Connectors A and B Interface
The high-speed Mezzanine connector (HSMC) is an Altera-developed
specification, which allows users to expand the functionality of the PCIe
development board through the addition of daughter cards (HSMC
cards).
The specification allows for eight transceiver channels, up to 18 LVDS
channels (plus differential clock input and output), 6 single ended I/O
(plus dedicated clock input and output), a JTAG bus, 3.3 V, 12 volts, and
GND.
f
For more information about the Altera HSMC connectors, refer to the
HSMC specifications on the Altera website, www.altera.com.
The Stratix II GX device has 16 transceivers: Two are used by the SFP
connectors and eight are used by the PCIe edge connector, which leaves
only six for the HSMC connectors. Therefore, HSMC A has only four
transceivers routed to it and HSMC B has only two transceivers routed to
it. This is the only deviation from the HSMC specification made on these
connectors.
Table 2–26 lists the HSMC A and B connector component reference and
manufacturing information.
Table 2–27 lists HSMC A connector pin-out as well as corresponding
Samtec and Stratix II GX pin numbers.
Table 2–26. HSMC A and B Connectors
Board
Reference
Description Manufacturer
Manufacturer Part
Number
Manufacturer
Website
J1, J2 High speed Mezzanine
connector Samtec ASP-122953-01 www.samtec.com
Table 2–27. HSMC A Connector Pin-Out (Part 1 of 5)
Schematic Signal Name Samtec Pin Number Stratix II GX Pin Number
hsma_clk_in_n1 98 C38
hsma_clk_in_n2 158 V38
hsma_clk_in_p1 96 C39
hsma_clk_in_p2 156 V39
hsma_clk_in0 40 V37
hsma_clk_out_n1 97 Y31