Specifications

Hardware Configuration
2–53
Channel Function
0
1
2
3
Available for 8-bit transfers
Available for 8-bit transfers
(Multimode Parallel port)
Floppy controller
Available for 8-bit transfers
4
5
6
7
Cascade for channels 0-3
Available for 16-bit transfers
Available for 16-bit transfers
Available for 16-bit transfers
Table 2-40 DMA Channel Assignments
The following table summarizes the available interrupt assignments for all subsystems on the
Little Board/486i. Use the table to plan which interrupts to use in your system. Factory defaults are
shown in gray.
IRQ
Function 3456791011121415
Serial 1
"
Serial 2
"
Serial 3
" "
Serial 4
" "
Parallel
""
Floppy
"
IDE
"
SCSI
"
Ethernet
""""
Video
(None)
Table 2-41 Summary of IRQ Options