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Altera_Forum
Honored Contributor
14 years agogigabit ethernet
For a Cyclone IV: Does Gigabit ethernet need to be implemented using transceivers, or can it be implemented using the normal IO pins? The PHY that was selected for this implementation has four separa...
Altera_Forum
Honored Contributor
14 years agoHi,
The GMII and RGMII interfaces don't use LVDS. They are single ended and use much lower frequencies on a parrallel bus. They will use LVCMOS bus: TMS320C6472/TMS320TCI6486 for GMII TLK2226 for RGMII Interface.( For sample only). But in the case of DDIO(needs to clock data in/out on both clock edges), It wont support LVDS. T&R Suresha