Acer Aspire 7750Z - System Interrupt Specification

1-42 Hardware Specifications and Configurations
System Interrupt Specification
System DMA Specification (Continued)
DMA6 Not Assigned
DMA7 Not Assigned
*ExpressCard controller can use DMA 1, 2, or 5.
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*
 Intel USB UHCI controller-24C2
 Intel 82852/82855 GM/GME Graphic Controller
 Realtek RTL8139 Family PCI Fast Ethernet Controller
IRQ11
 Intel USB EHCI controller-24CD
 Intel USB UHCI controller-24C4
 Intel USB UHCI controller-24C7
 Intel Pro/Wireless 2200BG
 TI OHCI 1394 host controller
 TI PCI1410 CardBus controller
IRQ12 Synaptics PS/2 Port Touchpad
IRQ13 Numeric data processor
IRQ14 Primary IDE channel
IRQ15 Secondary IDE channel
*Default configuration; audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none.
NOTE:
Default configuration; audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none.
NOTE:
ExpressCards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, or IRQ15. Either
the infrared or the serial port may assert IRQ3 or IRQ4.
Legacy Mode Power Management