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EC-7100 User 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
IRQ 14
Motherboard resources
IRQ 17
High Definition Audio Controller
IRQ 13
Numeric data processor
IRQ 4294967293
Intel(R) 100 Series/C230 Series Chipset Family PCI
Express Root Port #9
– A118
IRQ 4
Communications Port (COM1)
IRQ 0
System timer
IRQ 4294967294
Intel(R) Xeon(R) E3 - 1200/1500 v5/6th Gen Intel(R)
Core(TM) PCIe Controller (x16) - 1901
IRQ 55 ~ IRQ 204
Microsoft ACPI-Compliant System
IRQ 256 ~ IRQ 511
Microsoft ACPI-Compliant System
IRQ 4294967276
Intel(R) Management Engine Interface
IRQ 4294967277
Intel(R) USB 3.0 eXtensible Host Controller - 1.0
(Microsoft)
IRQ 11
Intel(R) 100 Series/C230 Series Chipset Family SMBus
- A123
IRQ 11
Intel(R) 100 Series/C230 Series Chipset Family
Thermal subsystem - A131
IRQ 4294967279 ~
IRQ 4294967284
Intel(R) Ethernet Connection (2) I211-V
IRQ 4294967285 ~
IRQ 4294967290
Intel(R) Ethernet Connection (2) I211-V #2
IRQ 4294967291
Intel(R) Ethernet Connection (2) I219-V
IRQ 4294967278
NVIDIA GeForce GTX 1080
IRQ 8
System CMOS/real time clock
IRQ 16
High Definition Audio Controller
IRQ 14
Motherboard resources
IRQ 17
High Definition Audio Controller
IRQ 13
Numeric data processor
IRQ 4294967292
Standard SATA AHCI Controller
IRQ 4
Communications Port (COM1)
IRQ 0
System timer