Occasional ContributorHi, I would like to ask if this means NC. Besides enabling VREF NC, do I need to make any additional settings, such as FPGE firmware?
Regular ContributorHI,
You can refer to the link below on the list of I/O standards supported in Intel Max 10. You can refer either it is voltage referenced I/O standard or not under "Type" column. If it shown as "voltage-referenced", means you need to connect Vref pin to voltage.
https://www.intel.com/content/www/us/en/docs/programmable/683751/22-1/i-o-standards-support.html
For the single-ended I/O standard, you no need to connect the Vref pin to voltage. Based on the Pin Connection Guidelines, which you can refer to below link, if you are not using the VREF pins, you can connect unused pins as defined in the Intel® Quartus® Prime software.
https://www.intel.com/content/www/us/en/docs/programmable/683232/current/differential-i-o-pins.html
For the unused pin settings in Intel Quartus software, you can refer below link:
