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Altera_Forum
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13 years ago

PMA Direct Transceivers and ATX PLLs

Hey everyone, I've been digging through the documentation and trying things in Quartus and I'd like to see if anyone else has had success with this. Basically, I would like to use an ATX PLL t...
Altera_Forum's avatar
Altera_Forum
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13 years ago

Did you review the list of errata:

http://www.altera.com/literature/es/es_stratixiv_gx.pdf

Search for ATX in the document. There are a few errata listed. I'm not sure if its one that is affecting you.

Note the placement restrictions on p11, i.e., ATX PLLs cannot drive all the transceivers blocks on a side, but only the ones right next to it.

The GTs have a similar errata. I created a 32 x 10Gbps transceiver design using CMU PLLs and it was acceptable to Quartus.

Cheers,

Dave