HP CQ60 System DMA specifications, System interrupt specifications, Hardware DMA System function

System DMA specifications

	Hardware	DMA System function
	DMA0	Not applicable
	DMA1*	Not applicable
	DMA2*	Not applicable
	DMA3	Not applicable
	DMA4	Direct memory access controller
	DMA5*	Available for PC Card
	DMA6	Not assigned
	DMA7	Not assigned
	*PC Card controller can use DMA 1, 2, or 5.
System interrupt specifications

Hardware IRQ	System function
IRQ0	System timer
IRQ1	Standard 101-/102-key or Microsoft® Natural Keyboard
IRQ2	Cascaded
IRQ4	COM1
IRQ6	Diskette drive
IRQ7*	Parallel port
IRQ8	System CMOS/real-time clock
IRQ9*	Microsoft ACPI-compliant system
IRQ12	Synaptics PS/2 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.

✎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.

Specifications 6–5