
Chapter 3
Hardware
ReadyBoard 910
Reference Manual
21
Interrupt Channel Assignments
The interrupt channel assignments are shown in
.
Legend:
D = Default, O = Optional, X = Fixed
Table 3-1. Interrupt Channel Assignments
Device vs IRQ No.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Timer X
PS/2 Keyboard
X
Secondary Cascade
X
COM1
O D
COM2
D O
RTC
X
Math Coprocessor
X
PS/2 Mouse
X
SATA Primary
X
SATA Secondary
X
Audio Controller
Automatically Assigned
PCI INTA
Automatically Assigned
PCI INTB
Automatically Assigned
PCI INTC
Automatically Assigned
PCI INTD
Automatically Assigned
USB
Automatically Assigned
Video
Automatically Assigned
Ethernet
Automatically Assigned
NOTE
The IRQs for the Ethernet, Video, and USB are automatically assigned by the
BIOS Plug and Play logic. Local IRQs assigned during initialization can not be
used by external devices.