Where can I find a schematic/circuit diagram for a 1000 Mbit/s RJ-45 network card?

I have to build a customized network card. My background is in computer engineering and robotics so I'm familiar with VHDL, micro-controllers, and FPGAs. I'm guessing that the best place to start is to learn how an existing network card works. How can I get started? Is there a public (or fairly economical) way to access a schematic of a 1Gbit card? Is there a book, manual, or paper that can get me started?
Juzzam2Asked:
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larsgaCommented:
Can you say something about what kind of customisation we are talking about here?

If you don't need core level customisation, you might get in touch with some of the ethernet chipset manufacturers and ask if they provide development boards / reference designs / driver source code.

If you are talking about making your own custom Ethernet implementation in a FPGA, you might want to take a look at the ethernet cores available at http://www.opencores.org/ as a starting point. Just make sure that you abide by the license the core is released under if you decide to use it.

For the Ethernet MAC/PHY standards, see the IEEE website. http://standards.ieee.org/getieee802/802.3.html

For general information, these wikipedia articles might be useful:
http://en.wikipedia.org/wiki/Gigabit_Ethernet
http://en.wikipedia.org/wiki/Ethernet

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