Introduction of the BIOS
3-35
User’s Manual
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RxD , TxD Active:
Set IR transmission/reception polarity as High or Low.
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IR Transmission Delay:
Set IR transmission delays 4 character-time(40 bit-time) when SIR is changed from RX
mode to TX mode.
Onboard Parallel Port:
Sets 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 ECP, EPP, ECP+EPP, or Normal (SPP) mode. Default is Normal (SPP)
mode.
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ECP Mode Use DMA:
When the mode selected for the onboard parallel port is ECP, the DMA channel selected
can be Channel 1 or Channel 3.
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EPP Mode Select:
When the mode selected for the onboard parallel port is EPP, two EPP version options
are available: EPP1.7 and EPP1.9.
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