Irq assignments – Sony PCV-LX920 User Manual

Page 82

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VAIO Slimtop System Reference Manual

70

IRQ Assignments

IRQ #

Default Assignment

(ISA) 0

System timer

(ISA) 1

Standard 101/102-Key or Microsoft® Natural PS/2® Keyboard

(ISA) 3

Communications Port (COM2)

(ISA) 4

Communications Port (COM1)

(ISA) 8

System CMOS/real time clock

(ISA) 9

Microsoft ACPI-Compliant System

(ISA) 12

PS/2 Compatible Mouse

(ISA) 13

Numeric data processor

(ISA) 14

Primary IDE Channel

(ISA) 15

Secondary IDE Channel

(PCI) 9

Lucent Win Modem

(PCI) 9

Ricoh R/RL/RT/RC/5C475(II), R5C520 or compatible CardBus
Controller

(PCI) 9

SiS 630/730

(PCI) 9

SiS 7001 PCI to USB Open Host Controller

(PCI) 9

SiS 7001 PCI to USB Open Host Controller

(PCI) 9

SiS 7018 Audio Driver

(PCI) 9

SiS 900 PCI Fast Ethernet Adapter

(PCI) 9

Sony Memory Stick® controller (PCI)

(PCI) 9

Texas Instruments OHCI Compliant IEEE 1394 Host Controller

This shows the factory default values. Windows® XP operating system reassigns
resources to best meet the needs of a particular configuration. PCI IRQs can be shared
between several PCI devices.

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