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APPENDIX
60
MI981 User’s 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
IRQ0
System Timer
IRQ3
Serial Port #2
IRQ4
Serial Port #1
IRQ5
Serial Port #3
IRQ5
Serial Port #4
IRQ7
Serial Port #5
IRQ7
Serial Port #6
IRQ8
Real Time Clock
IRQ 10
Intel(R) 8 Series/C220 Series SMBus Controller -
8C22
IRQ 13
Numeric data processor
IRQ 16
High Definition Audio Controller
IRQ 16
Intel(R) 8 Series/C220 Series USB EHCI #2 - 8C2D
IRQ 16
Intel(R) Management Engine Interface
IRQ 16
Intel(R) 8 Series/C220 PCI-Express Root Port #1 -
8C10
IRQ 16
Intel(R) Xeon(R) processor E3-1200 v3/4th Gen
Core processor PCI Express x16 Controller - 0C01
IRQ 19
Intel(R) 8 Series/C220 Series SATA AHCI
Controller - 8C02
IRQ 19
Intel(R) Active Management Technology - SOL
(COM7)
IRQ 22
High Definition Audio Controller
IRQ 23
Intel(R) 8 Series/C220 Series USB EHCI #1 - 8C26
Summary of Contents for MI981
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Page 8: ...INTRODUCTION 4 MI981 User s Manual Board Dimensions...
Page 17: ...INSTALLATIONS MI981 User s Manual 13 Connector Locations on MI981...
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