User`s guide

Copyright © 2008 congatec AG B915m10 62/92
PCI Interrupt Routing Map8.5
Table 32 PCI Interrupt Routing Map
PIRQ PCI BUS INT Line ¹ APIC Mode IRQ VGA Azalia HDA UHCI 0 UHCI 1 UHCI 2 UHCI 3 EHCI PATA Native SMBus AC’97
A 16 x x x
B 17 x
C 18 x x
D 19 x x
E INTA 20
F INTB 21
G INTC 22
H INTD 23 x x
Table 33 PCI Interrupt Routing Map (continued)
PIRQ LAN SATA Native 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
A x x
2
x
5
x
4
B x x
3
x
2
x
5
C x x
4
x
3
x ²
D x x x x
5
x
4
x ³
E
F
G
H
Note
1
These interrupts are available for external devices/slots via the C-D connector rows.
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).