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COMe-cDC2 / System Ressources

5 System Ressources

5.1 Interrupt Request (IRQ) Lines

Please be aware that an ACPI OS decides itself on resource usage. The tables below show only an example distribution.

5.1.1 In 8259 PIC Mode

IRQ# Used For Available Comment

0 Timer 0 No -

1 Keyboard No -

2 Slave 8259 No -

3 COM2 Yes Note(1)

4 COM1 Yes Note(1)

5 Free Yes -

6 Floppy Drive Controller Yes Note(1)

7 LPT1 Yes Note(1)

8 RTC No -

9 SCI No Note(2)

10 Free Yes -

11 Free Yes -

12 PS/2 Mouse No Note(1)

13 FPU No -

14 IDE0 No Note(1)

15 IDE1 No Note(1)

1 If the “Used For” device is disabled in setup, the corresponding interrupt is available for

other devices.

2 Unavailable in Advanced Configuration and Power Interface (ACPI) mode. Used as System

Control Interrupt (SCI) in ACPI mode. Currently not free in Non-ACPI mode.

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Kontron COMe-cDC2 Manuale Utente Pagina 46