The
AZZA
P4X MAINBOARD SERIES
Page 36
!
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.
!
UART Mode Select
Your system may offer a variety of infrared modes on the second serial port.
The options are Standard, HPSIR or ASKIR.
!
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.
!
IR Transmission Delay
This field allows you to “Enable” or “Disable” the IR Transmission Delay.
!
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.
!
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
