4 Technical Information
System Specifications
82
English
IRQs, DMAs, and I/O Addresses Used by Your PC Workstation
The IRQ, DMA, and I/O address mappings shown here are for a basic
configuration. The resources used by your PC Workstation may vary,
depending on which accessory boards are bundled with the
PC Workstation. Resources are allocated by the system BIOS or the
Plug and Play operating system.
IRQs used by
PC Workstation
IRQ0
System timer
IRQ1
Keyboard controller
IRQ2 Free
IRQ3
COM2, COM4
IRQ4
COM1, COM3
IRQ5 LPT2
IRQ6
Floppy disk drive controller
IRQ7 LPT1
IRQ8
Real-time clock
IRQ9
IRQ10
IRQ11
IRQ12 Mouse
IRQ13 Not
connected
IRQ14
Integrated IDE controller
IRQ15
Integrated IDE controller
DMAs used by
PC Workstation
DMA 0
Capture
DMA 1
Playback
DMA 2
Floppy disk drive controller
DMA 3
LPT ECP
DMA 4
Cascade
DMA 5
free
DMA 6
free
DMA 7
free
ashaki.bk : ashak-4.fb4 Page 82 Thursday, September 10, 1998 5:58 PM