Can a Global Clock (GCLK) be used as the input clock source for a non-DPA ALTLVDS_RX interface, in Stratix V, Arria V or Cyclone V devices?

Description

No, a Global Clock (GCLK) cannot be used as the input clock source for a non-DPA ALTLVDS_RX interface in Stratix® V, Arria® V or Cyclone® V devices. However, due to a known issue in the Quartus® II software version 13.0, no error or warning message is generated if this is implemented.

 

 

Resolution

This issue is fixed in Quartus II software version 13.0 SP1. A valid error message will be generated if a Global Clock (GCLK) is used as the input clock source for a non-DPA ALTLVDS_RX interface.