Forum Discussion
Altera_Forum
Honored Contributor
11 years agoI'm not convinced GX parts will run at 6.375Gbps.
The maximum refclk for the GX parts is 622.08MHz. The serializer then gives a maximum serial data rate of 6.22Gbps. The GZ parts support a 637.5MHz refclk (and higher) giving the 6.375Gbps you're after. So, I think the devil is in the detail and, perhaps, explains why there are no references to anything over 6Gbps in the datasheet for GX parts. Cheers, Alex