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Technical Manual "Thunderbird/MM” Version 1.2
12.08.2005
Page 42 of 48
5.2 Interrupts And DMA Channels
Interrupts
IRQ
System Resource
NMI Parity
Error
0 Timer
1 Keyboard
2
Interrupt Controller 2
3
Serial Port 2
4
Serial Port 1
5 VGA
Adapter
6 Floppy
7 Not
used
8
Real Time Clock
9
User available (PCI)
10 USB
Controller
11 Ethernet
Controller
12 Mouse
13 Math
coprocessor
14 IDE
Controller
15 IDE
Controller
DMA channels
DMA
Data width
System Resource
0
8 bits
User available
1
8 bits
User available
2 8
bits
Floppy
3
8 bits
(Parallel Port)
4
Reserved, Cascade Channel
5
16 bits
User Available
6
16 bits
User Available
7
16 bits
User Available
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