Device Family: Intel® Stratix® 10

Intel Software: Quartus Prime Pro

Type: Answers

Area: Component


Last Modified: Tue Mar 19 2019 05:03:29 GMT-0700
Version Found: v17.0
Bug ID: 1507045879

Is there a known problem with how the Intel® Quartus® Prime Pro software implements Differential SSTL and HSTL I/O in Intel Stratix® 10 devices?

Description

Yes, due to a problem in Intel® Quartus® Prime Pro software versions 17.0 or later, Differential SSTL and HSTL inputs may not sample the input signal when implemented on bi-directional I/O in Intel Stratix® 10 devices if the respective VREF pin is not connected to a voltage reference. Differential SSTL and HSTL inputs should not require a VREF.

Workaround/Fix

This problem is scheduled to be fixed in a future version of the Intel Quartus Prime Pro software.