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Appendix
MBN800 Series 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.
MBN800-8L:
Level
Function
IRQ 0
System timer
IRQ 3
Communications Port (COM2)
IRQ 4
Communications Port (COM1)
IRQ 8
System CMOS/real time clock
IRQ 9
Intel(R) Xeon(R) E3 - 1200/1500 v5/6th Gen Intel(R)
Core(TM) Gaussian Mixture Model - 1911
IRQ 9
Intel(R) 100 Series/C230 Series Chipset Family
SMBus - A123
IRQ 11
Intel(R) 100 Series/C230 Series Chipset Family
Thermal subsystem - A131
IRQ 13
Numeric data processor
IRQ 14
Motherboard resources
IRQ 54 ~ IRQ 204
Microsoft ACPI-Compliant System
IRQ 256 ~ IRQ 511
Microsoft ACPI-Compliant System
IRQ 4294967232
Intel(R) Management Engine Interface
IRQ 4294967233 ~
IRQ 4294967238
Intel(R) I210 Gigabit Network Connection #8
IRQ 4294967239 ~
IRQ 4294967244
Intel(R) I210 Gigabit Network Connection #7
IRQ 4294967245 ~
IRQ 4294967250
Intel(R) I210 Gigabit Network Connection #6
IRQ 4294967251 ~
IRQ 4294967256
Intel(R) I210 Gigabit Network Connection #5
IRQ 4294967257 ~
IRQ 4294967262
Intel(R) I210 Gigabit Network Connection #4
IRQ 4294967263 ~
IRQ 4294967268
Intel(R) I210 Gigabit Network Connection #3
IRQ 4294967269
Intel(R) USB 3.0 eXtensible Host Controller - 1.0
(Microsoft)
IRQ 4294967270
Intel(R) HD Graphics 630