5. CPU Board Resources
PC-686BX(NLX)-LV, PC-686BX(NLX)-LVV
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PCI Configuration Space Map
Table 5.4. PCI Configuration Space Map
Bus No. Device No. Function No.
00 00 00 Intel 82443BX (PAC)
00 01 00 Intel 82443BX PCI bridge (For A.G.P)
00 07 00 Intel 82371EB(PIIX4E) PCI/ISA bridge
00 07 01 Intel 82371EB(PIIX4E) IDE bridge
00 07 02 Intel 82371EB(PIIX4E) USB
00 07 03 Intel 82371EB(PIIX4E) power management
00 0D 00 PCI expansion slot 1
00 0E 00 PCI expansion slot 2
00 0F 00 PCI expansion slot 3
00 10 00 PCI expansion slot 4
01 00 00 A. G. P. connector
Description
Interrupts
Table 5.5. Interrupt Request Lines (IRQ)
IRQ No. System Resource
NMI I/O channel check
0 Reserved (Interval timer)
1 Reserved (keyboard controller)
2 Reserved (Cascade interrupt from slave PIC)
3 COM2*
4 COM1*
5 LPT2 (Plug and Play option). Available to user
6 Diskette drive controller
7 LPT1*
8 Realtime clock
9 ACPI
10 USB (Available to user)
11 Available to user
12 PS/2 mouse port (Available to user if unused) Must be disabled in BIOS
13 Reserved (Math coprocessor)
14 Primary IDE (Available to other users if unused)
15 Secondary IDE (Available to other users if unused)
* Indicates default. However, the default can be changed to a different IRQ.
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