Acer Aspire E1-521 Service Manual page 39

System Interrupt Specification
Hardware IRQ
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ6
IRQ7*
IRQ8
IRQ9*
IRQ10*
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
NOTE:
*
Default configuration, audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none.
Hardware Specifications and Configurations
System Function
High precision event timer
Standard PS/2 Keyboard
Cascaded
AMD EHCI USB Controller (7808, 7808)
AMD High Definition Audio controller(780D)
Ethernet controller(1083)
Diskette drive
Parallel port
High precision event timer
Microsoft ACPI-compliant system
ATI High Definition Audio controller(1314)
AMD AHCI 1.0 SATA controller(7801)
Atheros Network controller(0032)
ATI VGA compatible controller(9809)
AMD USB Controller(7812)
AMD OHCI USB Controller(7807, 7807)
Realtek Device Does Not Fit In Class Code(5209)
ELAN PS/2 Port Smart-Pad
Numeric data processor
Primary IDE channel
Secondary IDE channel
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