48 UMT-7211
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 4294967291
Intel(R) HD Graphics 520
IRQ 4
Communications Port (COM1)
IRQ 3
Communications Port (COM2)
IRQ 5
Communications Port (COM3)
IRQ 7
Communications Port (COM4)
IRQ 11
Intel(R) 100 Series Chipset Family Integrated Sensor
Hub - 9D35
IRQ 11
Intel(R) 100 Series Chipset Family SMBUS - 9D23
IRQ 11
Intel(R) 100 Series Chipset Family Thermal subsystem -
9D31
IRQ 19
Intel(R) Active Management Technology - SOL (COM5)
IRQ 54 ~ IRQ 204
Microsoft ACPI-Compliant System
IRQ 256 ~IRQ 511
Microsoft ACPI-Compliant System
IRQ 0
System timer
IRQ 4294967285
Intel(R) Management Engine Interface
IRQ 4294967294
Intel(R) 100 Series Chipset Family PCI Express Root
Port #10 - 9D19
IRQ 4294967290
Intel(R) USB 3.0 eXtensible Host Controller - 1.0
(Microsoft)
IRQ 4294967289
Intel(R) I211 Gigabit Network Connection
IRQ 4294967288
Intel(R) I211 Gigabit Network Connection
IRQ 4294967287
Intel(R) I211 Gigabit Network Connection
IRQ 4294967286
Intel(R) I211 Gigabit Network Connection
IRQ 4294967292
Intel(R) Ethernet Connection I219-LM
IRQ 1
Standard PS/2 Keyboard
IRQ 12
Microsoft PS/2 Mouse
IRQ 16
High Definition Audio Controller
IRQ 4294967293
Standard SATA AHCI Controller
IRQ 8
System CMOS/real time clock