Abit NF7, User Manual

Page: 53 / 96

BIOS Setup 3-19
EXT-P2P’s Discard Time:
This item allows you to set EXT-P2P’s discard time.
Onboard FDD Controller:
Two options are available: Enabled and Disabled. The default setting is Enabled . You can enable or
disable the onboard FDD controller.
Onboard Serial Port 1:
This is used to specify the I/O address and IRQ of Serial Port 1. Six options are available: Disabled
3F8/IRQ4 2F8/IRQ3 3E8/IRQ4 2E8/IRQ3 AUTO. The default setting is
3F8/IRQ4
.
Onboard Serial Port 2:
This is used to specify the I/O address and IRQ of Serial Port 2. Six options are available: Disabled
3F8/IRQ4 2F8/IRQ3 3E8/IRQ4 2E8/IRQ3 AUTO. The default setting is 2F8/IRQ3 .
If you choose Disabled , the following items will not be available to set.
Onboard IR Function:
Three options are available: IrDA (HPSIR) ASKIR (Amplitude Shift Keyed IR) Disabled. The
default setting is Disabled .
When you select the item IrDA or ASKIR, the following items will be available to set.
RxD , TxD Active:
Four options are available: Hi, Hi Hi, Lo Lo, Hi Lo, Lo. The default setting is Hi, Lo . Set IR
transmission/reception polarity as High or Low.
IR Transmission Delay:
Two options are available: Enabled and Disabled. The default setting is Enabled . Set IR transmission
delays 4 character-time (40 bit-time) when SIR is changed from RX mode to TX mode.
IR Function Duplex:
Two options are available: Full and Half. The default setting is Half . Select the value required by the IR
device connected to the IR port. Full-duplex mode permits simultaneous two-direction transmission.
Half-duplex mode permits transmission in only one direction at a time.
Use IR Pins:
Two options are available: RxD2, TxD2 and IR-Header. The default setting is
IR-Header
. If you choose
RxD2, TxD2 , your motherboard must support a COM port IR KIT connection. Otherwise, you can only
choose the IR-Header to use the IR header on your motherboard to connect your IR KIT. Please use the
default setting.
NOTE: The setting for item “ RxD, TxD Active ”, also called “ TX, RX inverting ”, allows you to
determine the activity of RxD and TxD. We set it to “ Hi, Lo ”. If your motherboard BIOS uses “ No ” and
“
Yes
” to represent this item, you should set it to the same setting as the NF7/NF7-M/NF7-S. This means
that you should set it to “ No, Yes ” in order to match the transfer and receiving speed. If you fail to do so,
you will not get an IR connection between the NF7/NF7-M/NF7-S and the other computer.
User’s Manual