Interrupt Lines; Irq Lines; Dma Channels - Kontron cPCI-MXS64GX Technical Reference Manual

C. INTERRUPT LINES
C.1 IRQ L
INES
The board is fully PC compatible with interrupt steering for PCI plug and play compatibility.
Controller # 1
IRQ 0 Timer Output 0
IRQ 1 Keyboard (Output Buffer Full)
IRQ 2 Cascade Controller # 2
IRQ 3* Serial Port 2
IRQ 4* Serial Port 1
IRQ 5* Parallel Port 2 or Available
IRQ *6 Floppy Controller
IRQ 7* Parallel Port 1 or Available
* :All functions marked with an asterisk (*) can be disabled or reconfigured.
1 Available lines service on board and external PCI/ISA PnP devices or a Legacy ISA device.
C.2 DMA C
HANNELS
The cPCI-MXS64GX integrates the functionality of two 8237 DMA controllers. Eight
DMA channels are available.
According to Plug and Play standards, the system BIOS automatically allocates DMA
Channel 1 or 3 for the parallel port's ECP mode. Channel 2 is reserved for the floppy
controller and Channel 4 is used to cascade Channels 0 through 7 to the microprocessor.
IRQ 10
IRQ 11
IRQ 12
1
IRQ 13
IRQ 14
1
IRQ 15
DMA Channel
DMA 0
DMA 1
DMA 2
DMA 3
DMA 4
DMA 5
DMA 6
DMA 7
Controller # 2
IRQ 8 Real-Time Clock
IRQ 9 Available
Available
Available
PS/2 Mouse
Coprocessor Error
Primary IDE * or available
Secondary IDE * or available
Function
Available
PnP available (ECP)
Floppy controller
PnP available (ECP)
Cascade controller # 1
PnP available
PnP available
PnP available
C-1
1
1
1
1
1