Direct Memory Access (Dma) Channels - Kontron ETX®-CN8 User Manual

In APIC mode:
IRQ # Used For
0 Timer0
1 Keyboard
2 Slave 8259
3 COM2
4 COM1
5 PCI/LPT2
6 Floppy Drive Controller
7 LPT1
8 RTC
9 SCI
10 COM3
11 COM4
12 PS/2 Mouse
13 FPU
14 IDE0
15 IDE1
16 LNKA
17 LNKB
18 LNKC
19 LNKD
20 LNKA
21 LNKB, LNKC
22 LNKB
23 LNKA
27 LINKH
31 LINKH
Note: 1 If the "Used For" device is disabled in setup, the corresponding interrupt is available for other devices.
2 Unavailable if baseboard is equipped with an I/O controller SMC FDC37C669, and the device is enabled in
setup.
3 Unavailable in Advanced Configuration and Power Interface (ACPI) mode. Used as System Control
Interrupt (SCI) in ACPI mode.
8.2

Direct Memory Access (DMA) Channels

DMA # Used for
0
1
2 FDC
3 LPT
4 Cascade
5
6
7
Kontron User's Guide ETX®-CN8
Available Comment
No
No
No
No Note (1)
No Note (1)
Yes Note (2)
No Note (1)
No Note (1)
No
No System Control Interrupt (3)
Yes Note (2)
Yes Note (2)
No Note (1)
No
No Note (1)
No Note (1)
For PCI PCI IRQ line 1 + Graphics controller
For PCI PCI IRQ line 2 + HD Audio
For PCI PCI IRQ line 3
For PCI PCI IRQ line 4
No IDE Controller + UHCI Controller #1
No SATA Controller + EHCI Controller
No UHCI Controller #2
No LAN Controller
No PCI to PCI Bridge
No PCI to PCI Bridge
Available Comment
Yes
Yes
If the "used-for" device is disabled in setup, the corresponding DMA channel is
No
available for other devices.
Yes Unavailable if LPT is used in ECP mode.
No
Yes
Yes
Yes
46
8 System Resources