Are there any known issues with Stratix V IBIS models generated in the Quartus II software for SSTL and HSUL I/O standards with input OCT?

Description

Yes.  Due to a problem in the Quartus® II software versions 13.1 update 4 and earlier, Stratix® V IBIS models generated for the following I/O standards with input On-Chip Termination (OCT) do not show the correct behaviour.

• SSTL-15 with input OCT 20, 30, 40, 60, 120 Ohm
• SSTL-135 with input OCT 20, 30, 40, 60, 120 Ohm
• SSTL-125 with input OCT 20, 30, 40, 60, 120 Ohm
• SSTL-12 with input OCT 60, 120 Ohm
• HSUL-12 with input OCT 34, 40, 48, 60, 80 Ohm

Resolution

To work around this problem, regenerate the IBIS models using the Quartus II software version 14.0 or later.