Compaq Presario CQ71-200 Compaq Presario CQ71 Notebook PC and HP G71 Notebook - Page 107

System interrupt specifications, Hardware IRQ, System function

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System interrupt specifications Hardware IRQ System function IRQ0 IRQ1 System timer Standard 101-/102-Key or Microsoft® Natural Keyboard IRQ2 IRQ3 IRQ4 IRQ5* IRQ6 IRQ7* IRQ8 Cascaded Intel 82801DB/DBM USB2 Enhanced Host Controller-24CD COM1 Conexant AC-Link Audio Intel 82801DB/DBM SMBus Controller-24C3 Data Fax Modem with SmartCP Diskette drive Parallel port System CMOS/real-time clock IRQ9* IRQ10* IRQ11 IRQ12 IRQ13 IRQ14 IRQ15 Microsoft ACPI-compliant system Free resource ICH9 SMBus controller Synaptics PS/2 TouchPad Numeric data processor Free resource Free resource IRQ16 USB UHCI controller Micron card reader controller IRQ17 1394 OHCI controller High definition audio controller IRQ18 IRQ19 IRQ20 IRQ21 IRQ22 IRQ23 Ethernet controller USB UHCI controller USB UHCI / EHCI controller SATA controller USB UCHI controller High definition audio controller HP mobile data protection sensor *Default configuration; audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none. NOTE: PC Cards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, or IRQ15. Either the infrared or the serial port may assert IRQ3 or IRQ4. System interrupt specifications 99

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System interrupt specifications
Hardware IRQ
System function
IRQ0
System timer
IRQ1
Standard 101-/102-Key or Microsoft® Natural Keyboard
IRQ2
Cascaded
IRQ3
Intel 82801DB/DBM USB2 Enhanced Host Controller—24CD
IRQ4
COM1
IRQ5*
Conexant AC—Link Audio Intel 82801DB/DBM SMBus Controller—24C3 Data Fax
Modem with SmartCP
IRQ6
Diskette drive
IRQ7*
Parallel port
IRQ8
System CMOS/real-time clock
IRQ9*
Microsoft ACPI-compliant system
IRQ10*
Free resource
IRQ11
ICH9 SMBus controller
IRQ12
Synaptics PS/2 TouchPad
IRQ13
Numeric data processor
IRQ14
Free resource
IRQ15
Free resource
IRQ16
USB UHCI controller
Micron card reader controller
1394 OHCI controller
IRQ17
High definition audio controller
Ethernet controller
IRQ18
USB UHCI controller
IRQ19
USB UHCI / EHCI controller
IRQ20
SATA controller
IRQ21
USB UCHI controller
IRQ22
High definition audio controller
IRQ23
HP mobile data protection sensor
*Default configuration; audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none.
NOTE:
PC Cards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, or IRQ15. Either the infrared or the serial port
may assert IRQ3 or IRQ4.
System interrupt specifications
99