How to enable parallel on chip termination for a LVDS input on Arria 5 GX Devices? - How to enable parallel on chip termination for a LVDS input on Arria 5 GX Devices? I used the assignment editor in order to enable the termination but unfortunately the fitter gives warning saying: Warning (171167): Found invalid Fitter assignments. See the Ignored Assignments panel in the Fitter Compilation Report for more information. In the ignored assignment report I can find my on chip termination assignment! Replies: Re: How to enable parallel on chip termination for a LVDS input on Arria 5 GX Devices? You are welcome. Best regards, Ivan Replies: Re: How to enable parallel on chip termination for a LVDS input on Arria 5 GX Devices? Yes it helped, thank you very much. Replies: Re: How to enable parallel on chip termination for a LVDS input on Arria 5 GX Devices? I suppose you made a wrong assignment. You need to choose "Input termination" -> "Differential". Hope that helps. Best regards, Ivan