IBASE MI987 - Manual (Page 58)

APPENDIX
54 MI987 User’s Manual
B. Interrupt Request Lines (IRQ)
Peripheral devices use interrupt request lines to notify CPU for the service
required. The following table shows the IRQ used by the devices on
board.
Level Function
IRQ0 System Timer
IRQ3 Serial Port #2
IRQ4 Serial Port #1
IRQ 10
Intel(R) 8 Series/C220 Series
SMBus Controller - 8C22
IRQ 13 Numeric data processor
IRQ 16 High Definition Audio Controller
IRQ 16
Intel(R) 8 Series/C220 Series USB
EHCI #2 - 8C2D
IRQ 16
Intel(R) Management Engine
Interface
IRQ 19
Intel(R) 8 Series/C220 Series
SATA AHCI Controller - 8C02
IRQ 19
Intel(R) Active Management
Technology - SOL (COM3)
IRQ 22 High Definition Audio Controller
IRQ 23
Intel(R) 8 Series/C220 Series USB
EHCI #1 - 8C26