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5 System resources
5.1
PCI IRQ Routing
HW-option without PCIe switch (Chipset PCIe lane 2 is connected through PCIe switch to COMExpress connector lanes 2-4):
NOTICE: Chipset PCIe lane 0 is connected to COMExpress connector lane 0.
Slot Number
(or Onboard Device)
IGD
IUNIT
PMC
HDA
CSE
ISH
SATA
xHCI
I2C4
I2C5
I2C6
UART0
UART1
SDCard
EMMC
SMBus Controller
PCIE Root Port 0
PCIE Root Port 1
PCIE Root Port 2 /PCIe switch optional
PCIE Root Port 3
( connected to GBE Lan )
MSC C6C-AL
PIRQ 0
PIRQ 1
Dev /
Bus #
Function
(INT A)
(INT B)
0x02/0
0
0x03/0
0
0x0D/1
0 x
0x0E/0
0 x
0x0F/0
0
0x11/0
0
0x12/0
0 x
0x15/0
0
x
0x17/0
0
x
0x17/1
0
x
0x17/2
0
0x18/0
0 x
0x18/1
0
x
0x1B/0
0
0x1C/0
0
0x1f/1
0
0x13/0
0
0x13/1
0
0x13/2
0
0x13/3
0
MSC C6C-AL User Manual
Interrupts of Controller
PIRQ 2
PIRQ 3
PIRQ 4
PIRQ 5
(INT C)
(INT D)
(INT E)
(INT F)
x
x
x
x
x
x
x
x
a
b
d
a
c
d
PIRQ 6
PIRQ 7
(INT G)
(INT H)
c
d
b
c
a
b
x
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