Software • BIOS options
Chapter 4 Software
Panel PC 2100 swing arm user's manual V1.00
133
1.10.4 Interrupt assignments in APIC mode
A total of 23 IRQs are available in APIC (
A
dvanced
P
rogrammable
I
nterrupt
C
ontroller) mode. Enabling this option
is only effective if done before the Windows operating system is installed.
IRQ
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 NONE
System timer
●
Keyboard
●
IRQ cascade
●
ACPI
1)
●
Real-time clock
●
Co-processor (FPU)
●
COM B
●
○
○
○
○
○
○
○
COM C
○
○
○
○
○
○
●
○
COM A
○
●
○
○
○
○
○
○
COM D
○
○
○
○
○
●
○
○
B&R
Option-
al
CAN
○
○
○
○
○
●
○
○
PIRQ A
2)
●
PIRQ B
3)
●
PIRQ C
4)
●
PIRQ D
5)
●
PIRQ E
6)
●
PIRQ F
7)
●
PIRQ G
8)
●
PIRQ H
9)
●
Table 116: IRQ interrupt assignments in APIC mode
1)
A
dvanced
C
onfiguration and
P
ower
I
nterface.
2)
PIRQ A: For PCIe, PCI Express root port 0, VGA controller.
3)
PIRQ B: For PCIe, PCI Express root port 1, optional interface option.
4)
PIRQ C: For PCIe, PCI Express root port 2, SMBus controller, ETH2 controller.
5)
PIRQ D: For PCIe, PCI Express root port 3, serial ATA controller, ETH1 controller.
6)
PIRQ E: XHCI host controller.
7)
PIRQ F: Unused.
8)
PIRQ G: Optional High Definition Audio controller.
9)
PIRQ H: EHCI host controller.
● ... Default setting
○ ... Optional setting
PIRQ A
APIC IRQ 16
PIRQ B
APIC IRQ 17
PIRQ C
APIC IRQ 18
PIRQ D
APIC IRQ 19
PIRQ F
APIC IRQ 21
PIRQ G
APIC IRQ 22
PIRQ H
APIC IRQ 23
System unit
PCIe 0
PCIe 1
XHCI
PIRQ E
APIC IRQ 20
USB EHCI
VGA
HDA
Interface
Option
PCIe 2
SM bus
ETH2
PCIe 3
SATA
ETH1
Figure 87: PCIe routing with enabled APIC
