MIC-3368 Series User Manual -- Page 41

19 HDA1 44 N/C
20 HDA0 45 SANLED
21 ID0 46 N/C
22 ID1 47 ID8
23 ID2 48 ID9
24 N/C 49 ID10
25 N/C 50 GND.
B.12 System I/O Ports
Table B-8: System I/O ports
Addr. range (Hex) Device
000-01F DMA controller
020-021 Interrupt controller 1, master
022-023 Chipset address
040-05F 8254 timer
060-06F 8042 (keyboard controller)
070-07F Real-time clock, non-maskable interrupt (NMI)
mask
080-09F DMA page register
0A0-0BF Interrupt controller 2
0C0-0DF DMA controller
0F0-0F8 Math co-processor
1F0-1F7 Fixed disk
2F8-2FF Serial port 2
3B0-3BB VGA adapter
3C0-3DF VGA adapter
3F0-3F5 Diskette controller
3F8-3FF Serial port 1.
B.13 Interrupt Assignments
Table B-9: Interrupt assignments
Interrupt# Interrupt source
IRQ 0 Interval timer
IRQ 1 Keyboard
IRQ 2 Interrupt from controller 2 (cascade)
IRQ 8 Real-time clock
IRQ 9 VGA
IRQ 10 Available