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Altera_Forum
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15 years ago

Is it possible to detect both K28.5+ and K28.5- symbols with ALTGX in Basic mode

Hello. I am designing SATA core for Cyclone IV GX device, using its ALTGX transceivers. There is not enough information about it, I think. I have read C4-GX datasheet, quartus-help about AL...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi

I use the Cyclone IV GX with a fibre optic link, and the other end is a Cypress Hotlink serdes.

I guess you are going to use the K28.5+ - to sync the link? This works fine for me. You will get the control code out of the receiver with the hex value on the data lines (0xBC) and the rx_ctrldetect signal high. There is also an optional running disparity which will tell you which one (+ or -) was detected.

Hope that helps.

DaveLuscher