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

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HP CQ60-107TU, CQ60-109TX manual System DMA specifications, System interrupt specifications, Hardware DMA System function

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