MSI MS 6378 User Guide - Page 54

Chapter 3 1 (COM A)/Serial Port 2 (COM B). Selecting Auto allows BIOS to automatically determine the correct base I/O port address. Settings: Disabled, 3F8/IRQ4, 2F8/IRQ3, 3E8/IRQ4, 2E8/IRQ3, Auto. If you have ISA add-on card, the suggested configuration is as the following: If the ISA add-on card has COM1 COM2 COM3 COM4 (I/O:3F8H) (I/O:3F8H) (I/O:3E8H) (I/O:2E8H) Onboard Serial port to be set at PORT1 IRQ ASSIGNED PORT2 IRQ ASSIGNED 9 9 99 DISABLED X DISABLED X 9 9 XX COM3 4 COM4 3 X X 99 COM1 4 COM2 3 9 X X 9 COM2 3 COM3 4 X 9 9X COM1 4 COM4 3 9 9 9X COM4 3 DISABLED X 9 9 X 9 COM3 4 DISABLED X 9 X 99 COM2 3 DISABLED X X 9 99 COM1 4 DISABLED X X X XX COM1 4 COM2 3 9 X XX COM2 3 COM3 4 X 9 XX COM1 4 COM3 4 X X 9X COM1 4 COM2 3 X X X 9 COM1 4 COM2 3 Note: To use the IR function, you need to enable the serial port 2. UART 2 Mode This setting allows you to specify the operation mode for serial port 2. Setting options: IrDA, ASKIR, Normal. HPSIR IrDA-compliant Serial Infrared Port ASKIR Amplitude Shift Keyed Infrared Port Standard RS-232C Serial Port IR Function Duplex This setting controls the operating mode of IR transmission/reception. Setting options: Full, Half. Under Full Duplex mode, synchronous, bidirectional transmission/reception is allowed. Under Half Duplex mode, only asynchronous, bi-directional transmission/reception is allowed. 3-18