Table 2.30 pc-at interrupt definitions, 4 dma channel descriptions, Table 2.40 dma channel description – Inova PD00941013.001 User Manual
Page 39: Table 2.30 pc-at interrupt definitions -7, 4 dma channel descriptions -7, Table 2.40 dma channel description -7, Compactpci, Configuration, Icp-cm
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©2004 Inova Computers GmbH
Page 2-7
Doc. 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)
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