13.31.18.1 Load from File

Load from file enables you to load an I/O Settings (*.ios) file. You can use the IOS file to import saved custom settings for all your I/Os. The exported IOS file have the following format:

  • Used I/Os have an entry in the IOS file with the following format:

    set_prog_io_state -portName {<design_port_name>} -input <value> -outputEnable <value> - output <value>

  • Unused I/Os have an entry in the IOS file with the following format:

    set_prog_io_state -pinNumber {<device_pinNumber>} -input <value> -outputEnable <value> - output <value>

Where <value> is:
  • 1 – I/O is set to drive out logic High
  • 0 – I/O is set to drive out logic Low
  • Last_Known_State: I/O is set to the last value that was driven out prior to entering the programming mode, and then held at that value during programming
  • Z - Tri-State: I/O is tristated