9.13.16.1 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 programming mode, and then held at that value during programming.
- Z – Tri-State: I/O is tristated.