Acrosser AR-B1790 - Manual (Page 32)

AR-B1790 User’s Guide
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5.7 PERIPHERAL SETUP
This section is used to configure peripheral features.
Peripheral Setup
OnBoard IDE
This option is to set up the operating mode of IDE controller. If the main board offers the enhanced I/O port, the
choice should be <Enabled>.
OnBoard AC’97 Audio
This option allows you to select AC97 audio chip support Audio.
Auto
BIOS will automatically select onboard AC97 audio.
Disable Disable this function
OnBoard FDC
This option enables the floppy drive controller on the AR-B1790.
Serial Port A/B/C/D
These items specify the base I/O port addresses of the onboard Serial Port A (COM A)/Serial Port B (COM B).
Selecting Auto allows AWARD to automatically determine the correct base I/O port address. Settings: Auto,
3F8/IRQ4, 2F8/IRQ3, 3E8/COM4, 2E8/COM3 and Disabled.
Serial Port B Mode
This item sets the operation mode for Serial Port B. Settings: Normal, 1.6 uS, 3/16 Baud and ASKIR.
Normal: RS-232C Serial Port
IrDA: IrDA-compliant Serial Infrared Port
ASKIR: Amplitude Shift Keyed Infrared Port
IR Duplex Mode
This setting controls the operating mode of IR transmission/reception. Setting options: Full, Half. Under Full
Duplex mode, synchronous, bi-directional transmission/reception is allowed. Under Half Duplex mode, only
asynchronous, i-directional transmission/reception is allowed.