P4X MAINBOARD SERIES
Page 36
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Onboard Serial Port 1/Port 2
These two selection fields allow you to select the I/O address and corre-
sponding interrupts for the first and second serial ports.
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UART Mode Select
Your system may offer a variety of infrared modes on the second serial port.
The options are Standard, HPSIR or ASKIR.
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RxD, TxD Active
This field allows you to set the IR reception/transmission polarity as high or
low. To determine which polarity is appropriate you must refer to the docu-
mentation for the IR peripheral that is being used.
This field is usually found under the Onboard Serial Port 2 option. If you dis-
able the Onboard Serial Port 2 Option then you will probably not be able to
configure this field.
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IR Transmission Delay
This field allows you to “Enable” or “Disable” the IR Transmission Delay.
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UR2 Duplex Mode
This field appears in an infrared port mode. You have two options: half or full
duplex function. The full duplex mode allows bi-directional transmission at a
single time where as the half duplex mode only allows transmission in one
direction at a time. This setting depends on the nature of your IR peripheral
device. Check the IR device’s manual to determine the appropriate setting.
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Use IR Pins
To determine the correct settings for the TxD and RxD signals of your IR pe-
ripheral component, you need to consult the components manual.
CMOS Setup Utility - Copyright (C) 1984 - 2001 Award Software
SuperIO Device
Item Help
Menu Level
!!
Onboard FDC Controller [Enabled]
Onboard Serial Port 1 [3F8/IRQ4]
Onboard Serial Port 2 [2F8/IRQ3]
UART Mode Select [Normal]
X
RxD, TxD Active Hi, Lo
X
IR Transmission Delay Enabled
X
UR2 Duplex Mode Half
X
Use IR Pins IR-Rx2Tx2
Onboard Parallel Port [378/IRQ7]
Parallel Port Mode [SPP]
X
EPP Mode Select EPP1.7
X
ECP Mode Use DMA 3
Game Port Address [201]
Midi Port Address [330]
Midi Port IRQ [10]
Managing The PC BIOS
