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Altera_Forum's avatar
Altera_Forum
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12 years ago

Can you get RGMII working with the EQFP package parts

I am working on a design that looks to need about 16MB/s of bandwidth. That, unfortunately, is more than a single 100Mb/s link can manage. We presently have two ideas to solve this: 1) Use 2 10...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

A EP4C22 should handle an RGMII interface just fine, especially a -7 speed grade. I believe some of Altera's C4 reference designs use an RGMII interface (http://www.altera.com/products/devkits/altera/kit-cyclone-iv-gx.html). If you have the pins, you could use a GMII interface instead (SDR), which would reduce the switching rates on the data lines if you're concerned about it.

I use raw L2 Ethernet interfaces for internal communication all the time to communicate with our main system processor. Works great, Just need mac dst/src, length/type, data and crc, and you can use a raw socket interface.