Not all clock synchronization options are available in the DCFIFO MegaWizard Plug-In Manager - Not all clock synchronization options are available in the DCFIFO MegaWizard Plug-In Manager Description In the DCFIFO MegaWizard Plug-In Manager, on page 3 under Are the FIFO clocks synchronized? , the option Yes, the clocks are synchronized, do not add clock synchronization latency. is not available. Resolution If you want to use this option, generate the megafunction with the No, the clocks are not synchronized, add latency to handle unrelated clocks. option. Edit the megafunction file generated and change the line: dcfifo_component.clocks_are_synchronized = "FALSE" to dcfifo_component.clocks_are_synchronized = "TRUE" Custom Fields values: ['novalue'] Troubleshooting novalue True ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 10.0 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']