Chapter 4: BIOS
4-19
KBC Clock Input
This setting allows you to select the clock frequency for the Keyboard Controller.
The options are 6MHz, 8MHz,
12MHz,
and 16MHz.
Serial Port A
This setting allows you to decide how the system controls Serial Port A. The
options are
Enabled
(user defi ned) and Disabled.
Base I/O Address
This setting allows you to select the base I/O address for Serial Port A. The
options are
3F8
, 2F8, 3E8, and 2E8.
Interrupt
This setting allows you to select the IRQ (interrupt request) for Serial Port A.
The options are IRQ3 and
IRQ4
.
Serial Port B
This setting allows you to decide how the system controls Serial Port B. The
options are
Enabled
(user defi ned), Disabled, Auto (BIOS controlled) and OS
Controlled.
Mode
This setting allows you to set the type of device that will be connected to Serial
Port B. The options are
Normal
and IR (for an infrared device) and ASK-IR.
Base I/O Address
This setting allows you to select the base I/O address for Serial Port B. The
options are 3F8,
2F8
, 3E8 and 2E8.
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