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©2004 Inova Computers GmbH Page 2-7Doc. PD00941013.001
ICP-CM
Configuration
CompactPCI
®
2
Table 2.30 PC-AT Interrupt Definitions
1)
Entries may be reserved for ISA devices with the BIOS
2.4 DMA Channel Descriptions
The ICP-CM CPU can access the devices shown in table 2.4 through the specified DMA channels.
Table 2.40 DMA Channel Description
DMA Channel Description
0-
1-
2 Floppy
3 LPT1 (ECP only)
Interrupt Request Interrupt Vector Function/Assignment
IRQ0 08h Timer
IRQ1 09h Keyboard
IRQ2 0Ah Slave 8259
IRQ3
1)
0Bh COM 2
IRQ4
1)
0Ch COM 1
IRQ5
1)
0Dh Free for PCI
IRQ6 0Eh Floppy
IRQ7
1)
0Fh LPT1
IRQ8 70h Real-Time Clock
IRQ9
1)
71h Free for PCI
IRQ10 72h Free for PCI
IRQ11
1)
73h Free for PCI
IRQ12 74h Mouse
IRQ13 75h Co-processor
IRQ14
1)
76h Hard Disk (IDE 0)
IRQ15
1)
77h Hard Disk (IDE 1)