Pci configuration space map, 5 pci configuration space map, Interrupt request (irq) lines (cont’d) apic mode – ADLINK Express-LPC User Manual
Page 31
Page 31
Express-IA533 User’s Manual
Page 31
Express-IA533 User’s Manual
Express-LPC User’s Manual
Page 31
Interrupt Request (IRQ) Lines (cont’d)
APIC Mode
IRQ#
Typical Interrupt Resource
Connected
Available
0
Counter 0
N/A
No
1
Keyboard controller
N/A
No
2
Cascade interrupt from slave PIC
N/A
No
3
Serial Port 2 (COM2) / PC
IRQ3 via SERIRQ
Note (1)
4
Serial Port 1 (COM1) / PCI
IRQ4 via SERIRQ
Note (1)
5
Parallel Port 2 (LPT2) / PCI
IRQ5 via SERIRQ
Note (1)
6
Floppy Drive Controller
IRQ6 via SERIRQ
No
7
Parallel Port 1 (LPT1) / PCI
IRQ7 via SERIRQ
Note (1)
8
Real-time clock
N/A
No
9
ACPI
N/A
No
10
PCI
IRQ10 via SERIRQ
Note (1)
11
PCI
IRQ11 via SERIRQ
Note (1)
12
PS/2 Mouse / PCI
IRQ12 via SERIRQ
Note (1)
13
Math Processor
N/A
No
14
Primary IDE controller / PCI
IRQ14 via SERIRQ
Note (1)
15
Secondary IDE controller / PCI
IRQ15 via SERIRQ
Note (1)
16
N/A
PCI Slot INT A, USB, VGA controller,
Yes
High Definition Audio controller
17
N/A
PCI Slot INT B, PCI-E Gigabit Ethernet NIC
Yes
18
N/A
PCI Slot INT C, USB
Yes
19
N/A
PCI Slot INT D, USB controller
Yes
20
N/A
No
21
N/A
No
22
N/A
No
23
N/A
EHCI, USB
No
(1) These IRQs can be used for PCI devices when onboard device is disabled.
7.5 PCI Configuration Space Map
Bus No. Device No.
Function No.
Routing
Description
00h
00h
00h
N/A
Intel 945 GME GMCH Host-Hub Interface Bridge
00h
02h
00h
Internal
Intel Integrated Graphics Device
00h
02h
01h
Internal
Intel Integrated Graphics Device (Function 1)
00h
1Bh
00h
Internal
High Definition Audio controller
00h
1Ch
00h
Internal
Intel ICH Express Root port
00h
1Dh
00h
Internal
Intel USB UHCI Controller 1
00h
1Dh
01h
Internal
Intel USB UHCI Controller 2