What I/O standard setting should be used for the DDR4 alert_n signal? - What I/O standard setting should be used for the DDR4 alert_n signal? Description In Intel® Quartus® software version 16.1 and earlier, the default I/O standard setting for the alert_n signal is SSTL-12. It is recommended to change the setting to 1.2V. Resolution The default I/O standard setting for the alert_n signal is set to 1.2 V, starting in Intel® Quartus® software version 17.0. Custom Fields values: ['novalue'] Troubleshooting FB: 400506; False ['External Memory Interfaces Arria® 10 FPGA IP'] ['FPGA Dev Tools Quartus® Prime Software Pro'] novalue 16.0 ['Arria® 10 FPGAs and SoCs', 'Stratix® 10 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']