Interrupt Channel Assignments; Table 3-2. Interrupt Channel Assignments - ADLINK Technology CoreModule 430 Reference Manual

Chapter 3

Interrupt Channel Assignments

The interrupt channel assignments are shown in

Table 3-2. Interrupt Channel Assignments

Device vs IRQ No.
Timer
Keyboard
Secondary Cascade
COM1
COM2
COM3
COM4
Parallel
RTC
IDE
Math Coprocessor
(only in DX
processor)
PS/2 Mouse
PCI INTA
PCI INTB
PCI INTC
PCI INTD
USB
VGA
Ethernet
Legend: D = Default, O = Optional, X = Fixed
NOTE
Table 3-3. DMA Map
DMA # Use
0-1, 5, 6, 7 Direct Memory Access
3 LPT 1, only in ECP mode (configurable)
4 DMA 1 cascade
18
Table
0 1 2 3 4
X
X
X
D
D O
O O
O O
The IRQs for the Ethernet, Video, and Internal Local Bus (ISA) are
automatically assigned by the BIOS Plug and Play logic. Local IRQs assigned
during initialization can not be used by external devices.
Reference Manual
3-2.
5 6 7 8 9 10 11
O
D
O D
X
Automatically Assigned
Automatically Assigned
Automatically Assigned
Automatically Assigned
Automatically Assigned
Automatically Assigned
Automatically Assigned
Hardware
12 13 14 15
D
O
D
X
X
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