Sys tem in ter rupts ( irqs ) 24, Dma chan nel as sign ments 24, Irqs 24 – Intel SBC-370 User Manual
Page 22: Sys tem in ter rupts 24, System interrupts (irqs) dma channel assignments, System interrupts (irqs), Dma channel assignments
SYSTEM INTERRUPTS (IRQS)
IRQ
Description
IRQ0
System Timer
IRQ1
Keyboard
IRQ2
Cascade to IRQ Controller
IRQ3
COM2/COM4
IRQ4
COM1/COM3
IRQ5
Unused
IRQ6
Floppy Drive (FDC)
IRQ7
Printer
IRQ8
Real Time Clock
IRQ9
Unused
IRQ10
Unused
IRQ11
Unused
IRQ12
PS/2 Mouse
IRQ13
FPU
IRQ14
Primary IDE
IRQ15
Secondary IDE
DMA CHANNEL ASSIGNMENTS
Channel
Function
0
Available
1
Available
2
Floppy disk ( 8-bit transfer )
3
Available
4
Cascade for DMA Controller 1
5
Available
6
Available
7
Available
Board Configuration
24
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