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Altera_Forum
Honored Contributor
16 years agoNormally, you instantiate a LVDS transmitter or receiver by assigning LVDSI/O standard to a single ended port pin with an optional DIFFIO_xxp function. The inverted DIFFIO_xxn is then selected by the Quartus fitter automaticly. There's are also differential I/O low-level primitives, but they are rarely required in standard designs.