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Altera_Forum
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15 years ago

using TSE MAC on a custom board

Hi,all.

I am using custom Arria II board and quartus 10.0 version.My goal is to implement UDP interface on 1 GigE interface.I am using Marvell 88E1111 PHY interface.I have no preference in matter of which interface (RGMII/GMII) to use,as long as it will work :) .

The trouble is that i have PCB wired in a way which only RGMII is possible (the schematic is attached ,any comment will be welcome,i am really unsure whether it is correct).Reviewing TSE user guide (http://www.altera.com/literature/ug/ug_ethernet.pdf) ,pages 4-23,4-24,2-25 (connections) got me really confused about the choice of connection and/or interface.My current preference is to use connection almost similar to the one in fugure 4-13.The problem is that the board layout on my board and also in evaluation boards differs from that connection by the fact the oscillator input to the PHY is 25 Mhz instead of 125 Mhz.

So, my first question is regarding the schematics and connections of the MAC.Are they correct ,and,more importantly,do they correspond to examples given by altera (i.e. standard ethernet example).Will be able to use that on custom board rather than in one of evaluation boards?

Thank you.
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