Appendix
MBN802 User Manual
51
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
IRQ 0
System timer
IRQ 3
Communications Port (COM2)
IRQ 4
Communications Port (COM1)
IRQ 8
System CMOS/real time clock
IRQ 11
Intel(R) Atom(TM) processor C3000 product family
Trace Hub - 19E2
IRQ 11
Intel(R) Atom(TM) processor C3000 product family
Management Engine Interface - 19D3
IRQ 11
Intel(R) Atom(TM) processor C3000 product family
Host SMBus - 19AC
IRQ 15
Intel(R) Atom(TM) processor C3000 product family
Legacy SMBus - 19DF
IRQ 16
NVIDIA GeForce GT 730
IRQ 17
High Definition Audio Controller
IRQ 23
Intel(R) Atom(TM) processor C3000 product family
RCEC - 19A2
IRQ 54 ~ IRQ 204
Microsoft ACPI-Compliant System
IRQ 256 ~ IRQ 511
Microsoft ACPI-Compliant System
IRQ 4294967096 ~
IRQ 4294967113
Intel(R) I211 Gigabit Network Connection #3
IRQ 4294967114 ~
IRQ 4294967131
Intel(R) I211 Gigabit Network Connection #5
IRQ 4294967132 ~
IRQ 4294967149
Intel(R) I211 Gigabit Network Connection #2
IRQ 4294967150 ~
IRQ 4294967167
Intel(R) I211 Gigabit Network Connection
IRQ 4294967168 ~
IRQ 4294967185
Intel(R) I211 Gigabit Network Connection #6
IRQ 4294967186 ~
IRQ 4294967203
Intel(R) I211 Gigabit Network Connection #4
IRQ 4294967204
Intel(R) USB 3.0 eXtensible Host Controller - 1.0
(Microsoft)