Is gxb4_cal_clk needed for Stratix V, Arria V, or Cyclone V devices?

Description

Input port to the SDI core (gxb4_cal_clk) is not used when targeting Stratix V, Arria V, or Cyclone V devices.
There is no workaround. Since it is no impact to the functionality, it can be ignored or tie to ground.

Resolution

This issue will be fixed in the future release Quartus II version, the SDI User Guide will be updated in the future release as well.