Software • BIOS options
Chapter 4 Software
Panel PC 800 User's Manual V1.30
225
1.13.4 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 NMI NONE
System timer
●
Keyboard
●
IRQ cascade
●
COM1 (serial port A)
○
●
○
○
○
○
○
○
ACPI
1)
●
Real-time clock
●
Coprocessor (FPU)
●
Primary IDE channel
●
Secondary IDE channel
●
COM3
(COM C)
○
○
○
○
○
○
●
○
○
B&R
COM5
(COM D)
○
○
○
○
○
○
○
○
●
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 194: IRQ interrupt assignments in APIC mode
1)
A
dvanced
C
onfiguration and
P
ower
I
nterface.
2)
PIRQ A: for PCIe; UHCI host controller 2, VGA controller, Intel High Definition Audio controller, PCI Express root port 4
3)
PIRQ B: for PCIe; PCI Express root port 1, onboard gigabit LAN controller
4)
PIRQ C: for PCIe; PCI express root port 2
5)
PIRQ D: for PCIe; UHCI host controller 1, SMBus controller, PCI Express root port 3, Serial ATA controller in enhanced/native mode 3
6)
PIRQ E: PCI bus INTD, UHCI host controller 3, parallel ATA controller in enhanced/native mode
7)
PIRQ F: PCI Bus INTA
8)
PIRQ G: PCI Bus INTB
9)
PIRQ H: PCI bus INTC, UHCI host controller 0, EHCI host controller
● ... Default setting
○ ... Optional setting
Intel 82574
B2:D0:F0
(PCI-EX Slot 0)
PCI-EX port 1
B0:D28:F1
PCI-EX port 4
B0:D28:F4
PCI-EX port 2
B0:D28:F2
PCI-EX port 3
B0:D28:F3
Native IDE
(SATA)
B0:D31:F2
Realtek, 8111 B
B3:D0:F0
(PCI-EX slot 5)
PCIe bus
A
B
C
D
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
CPU module
Mainboard
PCI bus
VGA
B0:D2:F0,
B0:D2:F1
Native IDE
(PATA)
B0:D31:F1
USB UHCI-2
B0:D29:F2
USB UHCI-3
B0:D29:F3
PIRQ E
APIC IRQ 20
A
A
B
B
C
C
D
D
USB UHCI-0
B0:D29:F0
USB UHCI-1
B0:D29:F1
SM bus
B0:D31:F3
USB EHCI
B0:D29:F7
D
A
B
C
HDA
B0:D27:F0
PCIe 2
PCI 1 PCI 2
IF slot
Figure 124: PCI and PCIe routing with enabled APIC for 945GME CPU boards and BIOS versions ≥ 1.15