Will the Locked port of the PLL toggle whilst it is in the process of acquiring lock to the input reference clock?

Description

Assuming the input reference clock to the PLL is stable, the PLL Locked signal will not toggle while the PLL establishes lock.  The general purpose PLLs in Stratix® V, Stratix IV, Stratix III, Arria® 10, Arria V, Arria II, Cyclone® V, Cyclone IV and Cyclone III devices have a hardened hysteresis filter which will prevent the Locked port from toggling.