Interrupt Request Lines (Irq) - ROHS EmCORE-i2702 User Manual

2 000h-0Fh
2 0800h-087Fh
26 0A00h-0A07h
27 0A10h-0A17h
28 0CF8h
29 0CFCh
0 700h-70Bh

4.2 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.
Item IRQ
1 IRQ 0
2 IRQ 1
 IRQ 2
 IRQ 
 IRQ 
6 IRQ 
7 IRQ 6
8 IRQ 7
9 IRQ 8
10 IRQ 9
11 IRQ 10
12 IRQ 11
1 IRQ 12
1 IRQ 1
1 IRQ 1
16 IRQ 1
South Bridge GPIO
ACPI
PME
Hardware Monitor
PCI Configuration address
PCI Configuration Data
TPM (If use)
Function
System Timer
Keyboard Controller
VGA and Link to Secondary PIC
COM 2
COM 1
PCI Device
Floppy Controller
Parallel Port
CMOS/RTC Timer
ACPI
COM /6 or Other PCI device
COM / or Other PCI device
PS/2 Mouse
FPU exception
IDE Controller
PCI Express Controller
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Appendix