Express-SL/SLE
47
Hex Range
Device
4D0,4D1 Interrupt
controller
CF8-CFB
PCI configuration address register (32 bit I/O only)
CF9
Reset Control register (8 bit I/O)
CFC-CFF
PCI configuration data register
F040
Smbus base address for SB.
1C00
GPIO Base Address for SB
1800
PM (ACPI) Base Address for SB
1860
Alias for ICH TCO base address.
0A00~0AFF
Reserved for SIO functions base address (ex: PME /GPIO etc)
6.4
Interrupt Request (IRQ) Lines
6.4.1 PIC
Mode
IRQ#
Typical Intterupt Resource
Connected to Pin
Available
0 Counter
0
N/A
No
1
Keyboard controller
IRQ1 via SERIRQ
No
2
Cascade interrupt from slave PIC
N/A
No
3
Serial Port 4 (COM4)
IRQ3 via SERIRQ / PIRQ
Note (1)
4
Serial Port 3 (COM3)
IRQ4 via SERIRQ / PIRQ
Note (1)
5
Serial Port 2 (COM2)
IRQ5 via SERIRQ / PIRQ
Note (1)
6
Generic
IRQ6 via SERIRQ / PIRQ
No
7
Serial Port 1 (COM1)
IRQ7 via SERIRQ / PIRQ
Note (1)
8 Real-time
clock
N/A
No
9 Generic
N/A
Note
(1)
10
Generic
IRQ10 via SERIRQ / PIRQ
Note (1)
11
Generic
IRQ11 via SERIRQ / PIRQ
Note (1)
12
PS/2 Mouse
IRQ12 via SERIRQ / PIRQ
Note (1)
13 FERR#
logic
N/A
No
14
SATA Primary
IRQ14 via SERIRQ / PIRQ
Note (1)
15
SATA Secondary
IRQ15 via SERIRQ / PIRQ
Note (1)
Note (1):
These IRQs can be used for PCI devices when onboard device is disabled.
