Ibase IB892 Manual do Utilizador descarregar pdf (Página 46)

APPENDIX

IB892 User’s Manual

B. Interrupt Request Lines (IRQ)

Peripheral devices use interrupt request lines to notify CPU for the service

required. The following table shows the IRQ used by the devices on

board.

Level

Function

IRQ0

System Timer Output

IRQ1

Keyboard

IRQ2

Interrupt Cascade

IRQ3

Serial Port #2

IRQ4

Serial Port #1

IRQ5

Reserved

IRQ6

Reserved

IRQ7

Reserved

IRQ8

Real Time Clock

IRQ9

Reserved

IRQ10

Serial Port #4

IRQ11

Serial Port #3

IRQ12

PS/2 Mouse

IRQ13

80287

IRQ14

Primary IDE

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 55 56

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Ibase IB892 Manual do Utilizador Página 46