Number Device
0 Printer interrupt from 82C710/1
1 Low battery warning
2 Floppy disc index pulse
3 VSync Pulse
4 Power on reset
5 IOC Timer 0
6 IOC Timer 1
7 FIQ downgrade - reserved for the current owner of FIQ
8 Expansion card FIQ downgrade; this should normally be masked off
9 Sound system buffer change
10 Serial port interrupt from 82C710/1 also mapped to FIQ device 4
11 IDE hard disc interrupt
12 Floppy disc interrupt from 82C710/1
13 Expansion card interrupt
14 Keyboard serial transmit register empty
15 Keyboard serial receive register full
16 DMA channel 0
17 DMA channel 1
18 DMA channel 2
19 DMA channel 3
20 DMA sound channel 0
21 DMA sound channel 1
22 ARM 7500 mouse port receive register full
23 ARM 7500 mouse port transmit register empty
24 ARM 7500 joystick A-to-D completion
25 ARM 7500 event 1
26 ARM 7500 event 2
PCI device numbers are allocated dynamically - see PCI_ReadInfo b11.
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