Apricot XEN Pentium 60, Owner'S Handbook Manual, Page: 114 / 139

A/4 XEN OWNER'S HANDBOOK
Inside the Apricot XEN
Appendix A
Configuring expansion cards
Many expansion cards have a number of configurable options.
These options can include items such as: the interrupt used, the
DMA channel used, where any ROM on the card will appear in
the processor’s memory map and which I/O ports are used to
control the card.
Most ISA cards use jumpers and/or switches to select their
configuration options. If this is the case then the card should be
configured before you install it. A few cards are configured
using a software utility supplied with the card, this can only be
done after the card is installed. PCI cards are automatically
configured by a utility included in the BIOS.
The SETUP utility includes the facility to indicate to the PCI
auto-configuration utility whether or not each of three interrupts
(IRQ9, 10 and 11) are used by ISA cards. If you use SETUP to
indicate that one of these interrupts is used, then the auto-
configuration utility will not attempt to configure a PCI card to
use that interrupt.
For ISA cards how configuration options are selected varies
from card to card and will be described in documentation
supplied with the card. Remember to check any floppy disks
supplied with the card for README or Help files.
If you are not familiar with the concepts of interrupts, DMA
channels, memory maps and I/O ports the following text
attempts to explain what they are, and how to decide which
option to select.
For the following explanations it should be understood that a
peripheral can be either, a subsystem on the motherboard, or
an expansion card.