Specifications

Little Board/486i Technical Manual
3–6
3.4 SETUP PAGE 2—OPTIONS/PERIPHERAL CONFIGURATION
Use SETUP page 2 to enable or disable many of the functions and peripherals provided on the Little
Board/486i. Figure 3-2 shows what can be configured on SETUP page 2, and the sections that follow
describe each parameter.
Figure 3-2 SETUP Page 2
3.4.1 Extended BIOS
Normally, the Ampro Extended BIOS is enabled. This allows access to SETUP pages three and four and
the features they define. If you do not want to use the BIOS extensions, you can disable them using this
parameter. (Sometimes UNIX or other operating systems may require disabling the extended portion of
the BIOS.) Ampro Application Note AAN-9210 documents the features in the extended BIOS, including
the application program interface specifications.
3.4.2 Serial Ports
Use SETUP to either enable or disable any of the four serial ports on the board. (When you use SETUP
to enable or disable a port, the change does not take effect until you reboot the system.)
The I/O addresses for the serial ports cannot be changed. The following table lists the I/O addresses of
each port (when enabled).