886LCD-M Family
KTD-00474-E
Public User Manual
Date: 2005-05-24
Page
53 of 78
6.3 Interrupt
Usage
IRQ
O
nbo
ard syste
m
parity e
rrors an
d I
O
CH
C
H
K
si
g
n
a
l
activatio
n
O
nbo
ard T
im
e
r 0 In
terrup
t
O
nbo
ard K
e
ybo
a
rd In
terrupt
Use
d
fo
r
Ca
scading
IR
Q
8
-IR
Q
15
May be used
by
o
n
b
oard S
e
rial
P
o
rt A
May
be
used
by o
n
b
oard
S
e
rial P
o
rt
B
/ IrD
A
P
o
rt
May be used
by
o
n
b
oard S
e
rial
P
o
rt C
May be used
by
o
n
b
oard S
e
rial
P
o
rt D
May be used
by
o
n
b
oard S
A
T
A
con
troller
May be used
by
o
n
b
oard P
a
rallel
P
o
rt
May be used
by
o
n
b
oard Flop
py
d
isk
Co
ntroller
Use
d
by
onb
oa
rd
Re
al T
ime
C
lo
ck A
larm
May
be
used
by o
n
b
oard
P
/S
2
sup
port
Use
d
fo
r
O
nbo
ard co
-p
ro
cessor su
ppo
rt
May
be
used
by p
rim
ary ha
rd
disk con
troller
May
be
used
by se
cond
ary ha
rd
disk con
troller
May
be
used
for o
nbo
ard S
oun
d S
y
s
tem
May be used
by
o
n
b
oard US
B
con
tr
o
lle
r
May
be
used
by o
n
b
oard
E
the
rn
et co
ntroller 1
May
be
used
by o
n
b
oard
E
the
rn
et co
ntroller 2
May
be
used
by o
n
b
oard
E
the
rn
et co
ntroller 3
May be used
by
o
n
b
oard V
G
A
C
o
n
troll
e
r
May be used
by
o
n
b
oard S
M
B
u
s
C
ont
ro
lle
r
A
v
ailable
on
P
C
I slots a
s
IR
Q
A
-IR
Q
D
dep
en
ding
on
selection
s
in th
e B
IO
S
Notes
NMI
•
IRQ0
•
IRQ1
•
IRQ2
•
IRQ3
•
•
•
•
•
1, 2
IRQ4
•
•
•
•
•
1, 2
IRQ5
•
•
•
1, 2
IRQ6
•
•
•
•
•
•
1, 2
IRQ7
•
•
1, 2
IRQ8
•
IRQ9
•
•
•
•
•
1, 2
IRQ10
•
•
•
•
•
•
1, 2
IRQ11
•
•
•
•
•
1, 2
IRQ12
•
•
1
IRQ13
•
IRQ14
•
•
1
IRQ15
•
•
1
IRQ16
•
•
3
IRQ17
•
3
IRQ18
•
3
IRQ19
•
3
IRQ20
3
IRQ21
3
IRQ22
3
IRQ23
•
3
IRQ24
•
3
IRQ25
•
3
IRQ26
•
3
Notes
:
1.
Availability of the shaded IRQs depends on the setting in the BIOS. According to the PCI Standard,
PCI Interrupts IRQA-IRQD can be shared.
2.
These interrupt lines are managed by the PnP handler and are subject to change during system
initialisation.
3.
IRQ16 to IRQ26 are APIC interrupts
