Hardware Specifications and Configurations 1-47
System DMA Specification
System Interrupt Specification
Legacy Mode Power Management
DMA0 Not applicable
DMA1 Not applicable
DMA2 Not applicable
DMA3 Not applicable
DMA4 Direct memory access controller
DMA5 Not applicable
DMA6 Not applicable
DMA7 Not applicable
*ExpressCard controller can use DMA 1, 2, or 5.
Hardware IRQ System Function
IRQ0 System timer
IRQ1 Standard PS/2 Keyboard
IRQ2 Not in use
IRQ3 Not in use
IRQ4* Direct memory access controller
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 Synaptics PS/2 Port Touchpad
IRQ13 Numeric data processor
IRQ14* Not in use
IRQ15* Not in use
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