Intel Braswell Series Technical Manual page 34

Change Settings
Use this item to select an optimal setting for super IO device.
The optional settings: [Auto]; [IO=3F8h; IRQ=4;]; [IO=2F8h; IRQ=3;]; [IO=3E8h;
IRQ=4;]; [IO=2E8h; IRQ=3;].
Transmission Mode Select
The optional settings are: [RS422]; [RS232]; [RS485].
Mode Speed Select
The optional settings are: [RS232/RS422/RS485=250kbps]; [RS232=1Mbps,
RS422/RS485=10Mbps].
Serial Port FIFO Mode
The optional settings are: [16-Byte FIFO]; [32-Byte FIFO]; [64-Byte FIFO];
[128-Byte FIFO].
 Serial Port 2 Configuration
Press [Enter] to make settings for the following items:
Serial Port
Use this item to enable or disable serial port (COM).
The optional settings: [Disabled]; [Enabled].
Change Settings
Use this item to select an optimal setting for super IO device.
The optional settings: [Auto]; [IO=3F8h; IRQ=4;]; [IO=2F8h; IRQ=3;]; [IO=3E8h;
IRQ=4;]; [IO=2E8h; IRQ=3;].
Serial Port FIFO Mode
The optional settings are: [16-Byte FIFO]; [32-Byte FIFO]; [64-Byte FIFO];
[128-Byte FIFO].
 Serial Port 3 Configuration
Press [Enter] to make settings for the following items:
Serial Port
Use this item to enable or disable serial port (COM).
The optional settings: [Disabled]; [Enabled].
Change Settings
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