66
SP-63ER 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 0
System timer
IRQ 1
Standard PS/2 Keyboard
IRQ 3
Communications Port (COM2)
IRQ 4
Communications Port (COM1)
IRQ 11
Intel(R) SMBus - A323
IRQ 11
Intel(R) Thermal Subsystem - A379
IRQ 12
Microsoft PS/2 Mouse
IRQ 13
Numeric data processor
IRQ 14
Intel(R) Serial IO GPIO Host Controller - INT3450
IRQ 16
High Definition Audio Controller
IRQ 17
High Definition Audio Controller
IRQ 19
Intel(R) Active Management Technology - SOL
(COM3)
IRQ 55-511
Microsoft ACPI-Compliant System
IRQ 4294967282
Intel(R) Management Engine Interface
IRQ 4294967283-290
Intel(R) I211 Gigabit Network Connection
IRQ 4294967291
Intel(R) USB 3.1 eXtensible Host Controller - 1.10
(Microsoft)
IRQ 4294967292
NVIDIA GeForce GTX 1080
IRQ 4294967293
Intel(R) Ethernet Connection (7) I219-LM
IRQ 4294967294
Standard SATA AHCI Controller
