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Altera_Forum's avatar
Altera_Forum
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10 years ago

Cyclone V GX using all 6 transceivers in both directions

I want to use all 6 transceivers for Gb Ethernet communication but I'm having trouble with the IP and assigning a TX PLL that is not from one of the channels as these are all used for RX. Is it...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

I'm currently investigating the clock options for Cyclone V as well and what I learnt so far is that you CAN use all 6 channels, but you must use the fPPLs for TX located in the 'PLL strip' (not the ones in the corners). They take one of the refclks as input. Caveat: only up to 3.125 Gbps !