BCT-ETX-C3-XXX
S
INGLE
B
OARD
C
OMPUTER
I
NSTALLATION
I
NTERRUPT
A
SSIGNMENT
T
ABLE
IRQ
Device
Comment
0
Timer 0
Fixed
1
Keyboard
Fixed
2
8259 (2
nd
Int Controller)
Fixed
3
COM 2
Can be released if disabled in BIOS Set-up
4
COM 1
Can be released if disabled in BIOS Set-up
5
Soundblaster Audio
If legacy Soundblaster audio enabled in BIOS Set-
up else free
6
Floppy Drive
Fixed
7
LPT 1
If Floppy enabled this becomes free
8
Real Time Clock
Fixed
9
USB
Mobile. Can map elsewhere and share with another
PCI device.
If VGA interrupt enabled it is present here
10
Audio
Mobile. Can map elsewhere and share with another
PCI device
11
Ethernet
Mobile. Can map elsewhere and share with another
PCI device
12
PS/2 Mouse
If enabled in BIOS Set-up
13
Floating Point Unit
Fixed
14
Primary IDE
Fixed
15
Secondary IDE
Fixed