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1-28 Hardware Specifications and Configurations
System DMA Specification
System Interrupt Specification
Legacy Mode Power Management
DMA0 Free
DMA1 Free
DMA2 Free
DMA3 Free
DMA4 Direct memory access controller
DMA5 Free
DMA6 Free
DMA7 Free
Hardware IRQ System Function
IRQ0 System timer
IRQ1 Standard PS/2 keyboard
IRQ2 Not in use
IRQ3 Not in use
IRQ5 Not in use
IRQ6 Not in use
IRQ7 Not in use
IRQ8 System CMOS/real time clock
IRQ9 Not in use
IRQ10 Not in use
IRQ11 Not in use
IRQ12 PS/2 port Touchpad
IRQ13 Numeric data processor
IRQ14 Not in use
IRQ15 Not in use