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Altera_Forum
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16 years ago

TSE 1000BASE-X/SGMII PCS only w/LVDS I/O

Hey Guys, I know this has been discussed a few times, but I couldn't find the answer I was looking for. I'm using a Stratix IV GX board with the Marvell Phy. I have a stripped down version ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

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I use evaluation version ... I presume everythign would be okay except the fact the it will not work after sometime.

I tried enable the bit in IF_MODE and restart negotiation, no hope.

I took the example design, same TSE MAC settings. I do nothing, just boot up and read the partner ability register, it's all right... 0xd801 which means ... GigE mode, copper link is up ... etc ... The IF_MODE register is still 0 though. Without any writing.

Very weird.

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I deleted everything and started all over again. It worked.

I had to change the "Loopback" option to "No loopback". The default is loopback when i first instantiate the TSE Core.

Very weird!