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NetFPGA-1G-CML™ Board Reference Manual
Revised July 16, 2014
This manual applies to the NetFPGA-1G-CML rev. E
DOC#: 6015-502-001
Copyright Digilent, Inc. All rights reserved.
Other product and company names mentioned may be trademarks of their respective owners.
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Overview
The NetFPGA-1G-CML is a versatile, low-cost network hardware development platform featuring a Xilinx® Kintex®-
7 XC7K325T FPGA and includes four Ethernet interfaces capable of negotiating up to 1 GB/s connections. 512 MB
of 800 MHz DDR3 can support high-throughput packet buffering while 4.5 MB of QDRII+ can maintain low-latency
access to high demand data, like routing tables. Rapid boot configuration is supported by a 128 MB BPI Flash,
which is also available for non-volatile storage applications. The standard PCIe form factor supports high speed x4
Gen 2 interfacing. The FMC carrier connector provides a convenient expansion interface for extending card
functionality via Select I/O and GTX serial interfaces. The FMC connector can support SATA-II data rates for
network storage applications. The FMC connector can also be used to extend functionality via a wide variety of
other cards designed for communication, measurement, and control.
The NetFPGA-1G-CML is designed to support the Stanford NetFPGA architecture with reference designs available
through the NetFPGA GitHub Organization (www.github.com/organizations/NetFPGA). It is fully compatible with
Xilinx Vivado™ and ISE® Design Suites as well as Xilinx SDK for embedded software design.
The NetFPGA-1G-CML board.
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Xilinx Kintex-7 XC7K325T-1FFG676 FPGA
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Low-jitter 200 MHz oscillator
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Four 10/100/1000 Ethernet PHYs with
RGMII
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X4 Gen 2 PCI Express
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X16 4.5 MB QDRII+ static RAM (450 MHz)
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X8 512 MB DDR3 dynamic RAM (800 MHz)
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1-Gbit BPI Flash
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SD card slot
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32-bit PIC microcontroller
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USB microcontroller
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Real time clock
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Crypto-authentication chip
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High pin count FMC connector (VITA 57)
withh 100 Select-IO and 4 GTX serial pairs
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Two Pmod connectors
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Four on-board LEDs and four on-board
general-purpose buttons