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APPENDIX
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 Output
IRQ1
Keyboard
IRQ3
Serial Port #2
IRQ4
Serial Port #1
IRQ5
SMBus Controller
IRQ8
Real Time Clock
IRQ19
SATA AHCI Controller
58
IB909 User’s Manual
Summary of Contents for IB909F
Page 1: ...IB909F Intel Broadwell ULT 3 5 Disk Size SBC USER S MANUAL Version 1 0...
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Page 8: ...INTRODUCTION Board Dimensions 4 IB909 User s Manual...
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