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TU87m12
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10.3
PCI Interrupt Routing Map
Table 32 PCI Interrupt Routing Map
PIRQ PCI BUS
INT Line ¹
APIC
Mode IRQ
Graphic HDA
XHCI EHCI
SM Bus +
Thermal
LAN
SATA
PCI-EX
Root Port
0
PCI-EX
Root Port
1
PCI-EX
Root Port 2
PCI-EX
Root
Port 3
PCI-EX
Port 0
PCI-EX
Port 1
PCI-EX
Port 2
PCI-EX
Port 3
A
INTA
16
x
x
x
x
x
2
x
5
x
4
x
3
B
INTB
17
x
x
3
x
2
x
5
x
4
C
INTC
18
x
x
x
4
x
3
x ²
x
5
D
INTD
19
x
x
x
5
x
4
x ³
x
2
E
20
x
F
21
G
22
H
23
x
Note
1
These interrupt lines are virtual (message based).
2
Interrupt used by single function PCI Express devices (INTA).
3
Interrupt used by multifunction PCI Express devices (INTB).
4
Interrupt used by multifunction PCI Express devices (INTC).
5
Interrupt used by multifunction PCI Express devices (INTD).
10.4
I²C Bus
There are no onboard resources connected to the I²C bus. Address 16h is reserved for congatec Battery Management solutions.
10.5
SM Bus
System Management (SM) bus signals are connected to the Intel
®
8 Series PCH-LP and the SM bus is not intended to be used by off-board
non-system management devices. For more information about this subject, contact congatec technical support.