Description
The [Diff Pin] section is not yet supported in IBIS files generated by the Quartus® II software for the Stratix® V, Arria® V, and Cyclone® V device families.
Resolution
This problem is fixed starting with the Intel® Quartus® Prime Pro/Standard Edition software version 13.0
Refer to the related solution below for instructions on manually adding this section to the IBIS files generated in the Quartus® II software for these device families.