Kontron ETX-LX - Manual (Page 29)

10 Appendix B: System Resources
Kontron User's Guide ETX®-LX 29
10 Appendix B: System Resources
10.1 Interrupt Request (IRQ) Lines
IRQ # Used For Available Comment
0 Timer0 No
1 Keyboard No
2 Slave 8259 No
3 COM2 No Note (1)
4 COM1 No Note (1)
5 LPT2 Yes Note (2)
6 Floppy Drive Controller No Note (1)
7 LPT1 No Note (1)
8 RTC No
9 SCI No Note (3)
10 COM3 Yes Note (2)
11 COM4 Yes Note (2)
12 PS/2 Mouse No Note (1)
13 FPU No
14 IDE0 No
15 IDE1 No
Note: 1 If the “Used For” device is disabled in setup, the corresponding interrupt is available for other devices.
2Unavailable if baseboard is equipped with an I/O controller SMC FDC37C669, and the device is enabled in
setup.
3Unavailable in Advanced Configuration and Power Interface (ACPI) mode. Used as System Control Interrupt
(SCI) in ACPI mode. Currently not free in Non-ACPI mode.
10.2 Direct Memory Access (DMA) Channels
DMA # Used for Available Comment
0 Memory Refresh Yes
1 Sound No Note (1)
2 Floppy disk controller No Note (1)
3 free No Unavailable if LPT used in ECP mode.
4 Cascade No
5 Sound No Note (1)
6 free Yes
7 free Yes
Note: If the “Used For” device is disabled in setup, the corresponding DMA channel is available for other devices.