--- Quote Start --- Hi, I have LVDS output. Is there a any way to put both LVDS outputs to High-'Z' or either both driving '0' ? -Tero --- Quote End --- Yes, you can disable (tri-state) LVDS outputs. You should be able to infer this in your HDL code or you could instantiate an Altera I/O buffer primitive (ALTIOBUF I think). You will need an output enable signal to enable/disable the output buffer. But as Galfonz said, you can't make an LVDS output buffer drive both sides low.
Tristateable Bus LVDS drivers are always emulated LVDS. There should be no basic problem (besides some timing drawbacks) to connect it trough logic gates.--- Quote Start --- Bus LVDS (BLVDS) output uses two single-ended outputs with the second output programmed as inverted. --- Quote End ---
Thanks, FvM, I didn't know that. To the OP, sorry for the misinformation (I was going from memory - always a mistake).If you are able to add external components I've used M-LVDS transceivers from TI. Analog Devices also makes them I believe. They also provide some protection if the LVDS signals are going off-board.