MSI 845GEM-L User Guide - Page 58

Serial Port A/B, Serial Port B Mode, RxD, TxD Active, IR Transmission Delay, IR Duplex Mode

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BIOS Setup Serial Port A/B 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 RxD, TxD Active This setting controls the receiving and transmitting speed of the IR peripheral in use. Setting options: Hi,Hi, Hi,Lo, Lo,Hi, Lo,Lo. IR Transmission Delay This setting determines whether the IR transmission rate will be delayed while converting to receiving mode. Setting options: Disabled, Enabled. IR Duplex Mode 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. IR Pin Select Please consult your IR peripheral documentation to select the correct setting of the TxD and RxD signals. Setting options: RxD2,TxD2, IRRx2Tx2. Parallel Port This field specifies the base I/O port address of the onboard parallel port. Selecting Auto allows AMIBIOS to automatically determine the correct base I/O port address. Settings: Auto, 378/IRQ7, 278/IRQ5, 3BC/IRQ7, Disabled. 3-17

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3-17
BIOS Setup
Serial Port A/B
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 auto-
matically 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
RxD, TxD Active
This setting controls the receiving and transmitting speed of the IR pe-
ripheral in use.
Setting options:
Hi,Hi
,
Hi,Lo
,
Lo,Hi
,
Lo,Lo
.
IR Transmission Delay
This setting determines whether the IR transmission rate will be delayed
while converting to receiving mode.
Setting options:
Disabled, Enabled
.
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, bi-directional transmission/reception is allowed.
IR Pin Select
Please consult your IR peripheral documentation to select the correct
setting of the TxD and RxD signals.
Setting options:
RxD2,TxD2,
IR-
Rx2Tx2
.
Parallel Port
This field specifies the base I/O port address of the onboard parallel port.
Selecting
Auto
allows AMIBIOS to automatically determine the correct base
I/O port address.
Settings:
Auto, 378/IRQ7
,
278/IRQ5
,
3BC/IRQ7, Disabled
.