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MelonPie
Joined: 16 Jan 2007
Posts: 5
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 16 Jan 2007 3:51 chip to chip connection with Ethernet |
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Hello,
I am thinking of using Gigabit Ethernet to have chip to chip interconnection.
How can I achieve this? Can I connnect Chip A to Chip B by SGMII without physical layer in between?
Chip A (GEMAC) -------> Chip B (GEMAC)
______________SGMII_______________
Thanks!
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dainis
Joined: 15 May 2001
Posts: 1451
Helped: 56
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| 16 Jan 2007 10:58 Re: chip to chip connection with Ethernet |
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| Yes it is possible, but you need chips with PHY and MAC mode SGMII interfaces, one chip with PHY mode other with MAC mode.
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MelonPie
Joined: 16 Jan 2007
Posts: 5
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| 16 Jan 2007 11:45 Re: chip to chip connection with Ethernet |
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Hello dainis,
Thanks for your reply.
Can you tell me what IP can be implemented into a FPGA as PHY mode?
Since I am using Xilinx`s FPGA which doesn`t support SMII.
I would like to use SGMII and run at 100Mbps only to connect from FPGA A to FPGA B.
Best Regards,
MelonPie
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dainis
Joined: 15 May 2001
Posts: 1451
Helped: 56
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| 16 Jan 2007 13:04 Re: chip to chip connection with Ethernet |
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After small thinking, I got answer that is possible connect two chips directly without PHY or switch chip, by using SGMII or MII intefaces with MAC mode.
Look this:
http://assets.zarlink.com/AN/ZLAN_36_AppNote_Sept06.pdf
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MelonPie
Joined: 16 Jan 2007
Posts: 5
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| 18 Jan 2007 2:02 Re: chip to chip connection with Ethernet |
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dainis,
Thank you very much!
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