cExpress-BL
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IRQ#
Typical Intterupt Resource
Connected to Pin
Available
11
Serial Port 4 (COM4)
IRQ11 via SERIRQ / PIRQ
Note (1)
12
PS/2 Mouse
IRQ12 via SERIRQ / PIRQ
Note (1)
13
Math Processor
N/A
Note (1)
14
Primary IDE controller
IRQ14 via SERIRQ / PIRQ
Note (1)
15
Secondary IDE controller
IRQ15 via SERIRQ / PIRQ
Note (1)
16
N/A
P.E.G Root Port,Intel HDA, PCIE Port
0/1/2/3/4/5/6, EHCI Conterller #2 , I.G.D ,XHCI
Controller
Note (1)
17
N/A
PCIE Port 0/1/2/3/4/5/6, P.E.G Root Port,
Note (1)
18
N/A
PCIE Port 0/1/2/3/4/5/6, P.E.G Root Port,
SMBus Controller, EHCI Controller #2
Note (1)
19
N/A
PCIE Port 0/1/2/3/4/5/6, P.E.G Root Port,
Note (1)
20
N/A
Gbe Controller
Note (1)
21 N/A
Note
(1)
22
N/A
Intel HDA
Note (1)
23
N/A
EHCI Controller #1
Note (1)
Note (1):
These IRQs can be used for PCI devices when onboard device is disabled.
