Abit SM5, User Manual

Page: 57 / 96

Introduction of BIOS 3-29
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.
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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.
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IR Duplex Mode:
Set the IR mode as Half or Full. Default is Half.
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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.
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Parallel Port Mode:
Can be set as EPP v.1.7, EPP v. 1.9, ECP, ECP+EPP 1.7, ECP+EPP
1.9 or Normal (SPP) mode. Default is Normal (SPP) mode.