PCI IDE Card 2nd Channel
This turns the onboard IDE controller’ s second channel
on and off. If you disable this it makes IRQ15 available
to the ISA expansion bus. The default setting is Enabled.
PCI IDE Card IRQ Map To
This item sets how the system assigns IRQs to a PCI IDE
controller card installed in one of the PCI expansion slots.
There are four options for this item. The default setting
is PCI-AUTO. The options are:
P C I - A U T O
Automatically assigns IRQ14 to the INT# for the
slot the card is installed in.
PCI-slotX
If an installed PCI IDE card does not support auto-
detection, you have to enter which slot it is installed
in by selecting the slot number. IRQ14 will be as-
signed automatically.
ISA
This for PCI IDE cards that connect to IRQs 14 and
15 directly via a “ paddleboard” installed in an ISA
slot and connected to the card by a cable. No IRQ
is assigned to the slot with the PCI IDE card in it.
The PCI Slot INT# specification options are:
Slot1–INT#A; Slot2–INT#B; Slot3–INT#C; Slot4–INT#D
Slot1–INT#B; Slot2–INT#C; Slot3–INT#D; Slot4–INT#A
Slot1–INT#C; Slot2–INT#D; Slot3–INT#A; Slot4–INT#B
Slot1–INT#D; Slot2–INT#A; Slot3–INT#B; Slot4–INT#C
In each case above the Slot/INT# associations are assigned
the same IRQ. This means you can not install more than
one PCI expansion card that uses an IRQ.
PS/2 Mouse Function (IRQ12)
This turns the PS/2 mouse port on and off. The default
setting is Enabled.
Summary of Contents for PR5
Page 10: ...System Block Diagram ...