Direct memory access (dma) channels – Kontron COMe-bCD2 User Manual
Page 45
9 System Ressources
Kontron User's Guide ETXexpress® CD
45
In APIC mode:
IRQ #
Used For
Available
Available for PCI
Comment
0
Timer0
No
No
1
Keyboard
No
No
2
Slave 8259
No
No
3
COM2
No
Yes
Note (2)
4
COM1
No
Yes
Note (2)
5
PCI
Yes
Yes
6
Floppy Drive
Controller
No
Yes
Note (2)
7
LPT1
No
Yes
Note (2)
8
RTC
No
No
9
SCI
No
No
System Control Interrupt
10
-
Yes
Yes
11
-
Yes
Yes
12
PS/2 Mouse
No
Yes
Note (2)
13
FPU
No
No
14
IDE0
No
No
15
SATA
No
No
Note (3)
16
PIRQ[A]
For PCI
PCI IRQ line 1 + USB UHCI controller #3 + Graphics
controller + PCIE Slot 0 + PCIE Slot 4
17
PIRQ[B]
For PCI
PCI IRQ line 2 + AC97 Audio controller + PCIe Slot 1
+ PCIe Slot 5
18
PIRQ[C]
For PCI
PCI IRQ line 3 + USB UHCI controller #2 + Native
IDE + PCIe Slot 2
19
PIRQ[D]
For PCI
PCI IRQ line 4 + USB UHCI controller #1 + SATA +
SMBus + PCIe Slot 3
20
PIRQ[E]
No
21
PIRQ[F]
No
22
PIRQ[G]
No
23
PIRQ[H]
No
USB UHCI Controller #0 + USB EHCI controller
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 Winbond W627, and the device is enabled in
setup. Always available in legacy free versions of the BIOS.
3 Unavailable in SATA legacy mode. It cannot be used for PCI, but for ISA bus, when SATA is in enhanced
mode.
9.2
Direct Memory Access (DMA) Channels
DMA #
Used for
Available
Comment
0
Yes
1
Yes
2
Yes
3
LPT
Yes
Unavailable if LPT is used in ECP mode.
4
Cascade
No
5
Yes
6
Yes
7
Yes