Altera Arria V GT FPGA Development Board - Manual (Page 43)

Chapter 2: Board Components 2–33
Components and Interfaces
December 2014 Altera Corporation Arria V GT FPGA Development Board
Reference Manual
Table 2–23 summarizes the SDI video input interface pin assignments, signal names,
and functions.
Components and Interfaces
This section describes the development board's communication ports and interface
cards relative to the Arria V GT FPGA. The development board supports the
following communication ports:
■ PCI Express
■ 10/100/1000 Ethernet
■ HSMC
■ SFP+ modules
■ FMC connector
■ Bull’s Eye connector
PCI Express
The Arria V GT FPGA development board is designed to fit entirely into a PC
motherboard with a ×8 PCI Express slot that can accommodate a full height long form
factor add-in card. This interface uses the Arria V GT FPGA's PCI Express hard IP
block, saving logic resources for the user logic application. The PCI express edge
connector has a presence detect feature to allow the motherboard to determine if a
card is installed.
f For more information on using the PCI Express hard IP block, refer to the PCI Express
Compiler User Guide .
The PCI Express interface supports auto-negotiating channel width from ×1 to ×4 to
×8 by using Altera's PCIe MegaCore IP. You can also configure this board to a ×1, ×4,
or ×8 interface through a DIP switch that connects the PRSNTn pins for each bus width.
The PCI Express edge connector has a connection speed of 2.5 Gbps/lane for a
maximum of 20 Gbps full-duplex (Gen1) or 5.0 Gbps/lane for a maximum of 40 Gbps
full-duplex (Gen2).
Table 2–23. SDI Video Input Interface Pin Assignments, Schematic Signal Names, and Functions
Board Reference
(U23)
Schematic
Signal Name
Arria V GT FPGA
Pin Number
I/O Standard Description
2 SDI_A_EQIN_P1 — 3.3-V SDI video cable equalizer input P
3 SDI_A_EQIN_N1 — 3.3-V SDI video cable equalizer input N
7 SDI_A_RX_BYPASS P19 2.5-V Equalizer bypass enable
11 SDI_A_RX_P AJ1 1.4-V PCML SDI video output P
10 SDI_A_RX_N AJ2 1.4-V PCML SDI video output N
14 SDI_A_RX_EN AK34 2.5-V Device enable
15 SDI_A_RX_CDN — 3.3-V
SDI video cable equalizer input carrier
detect output to LED