Specifications

3-32 Chapter 3
Onboard PS/2 Mouse:
This is to Enable or Disable the PS/2 Mouse. When in Enable, IRQ 12 is
used.
On Board FDD Controller:
This is to Enable or Disable the Onboard FDD Controller.
On board Serial Port 1:
This is used to specify the I/O address and IRQ of Serial Port 1. Five
options are available: Disable, 3F8h/IRQ4, 2F8h/IRQ3, 3E8h/IRQ4 or
2E8h/IRQ3.
On board Serial Port 2:
This is used to specify the I/O address and IRQ of Serial Port 2. Five
options are available: Disable, 3F8h/IRQ4, 2F8h/IRQ3, 3E8h/IRQ4 or
2E8h/IRQ3.
Attention: Do not select the same I/O address and IRQ for the two
serial ports, otherwise the serial ports will not be able to
operate normally.
/ Onboard IR Function:
Onboard serial port 2 can support IR (Infrared) function. Three
options are available:
ä Disable: No support for IR function.
ä IrDA (HPSIR) mode.
ä ASK IR (Amplitude Shift Keyed IR) mode.
/ IR Duplex Mode:
Set the IR mode as Half or Full. Default is Half.
/ IR Tr/Re Polarity:
Set IR transmission/reception polarity as High or Low.
On board parallel Port:
Set the I/O address and IRQ of the onboard parallel port. Four options
are available: Disable, 3BCh/IRQ7, 278h/IRQ5 and 378h/IRQ7. Default
is 378h/IRQ7.