B.2 direct memory access channels, Direct memory access channels, Table b-2: direct memory access channels – ADLINK NuPRO-E320 User Manual
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System Resources
B.2 Direct Memory Access Channels
Table B-2: Direct Memory Access Channels
Note (1): DMA channel 0/1/3 is selected when using parallel port.
Floppy and parallel port cannot be used at the same time.
Channel Number
Data Width
System Resource
0
8-bits
Parallel port
(1)
1
8-bits
Parallel port
(1)
2
8-bits
Diskette drive
(1)
3
8-bits
Parallel port
(1)
4
Reserved - cascade channel
5
16-bits
Open
6
16-bits
Open
7
16-bits
Open
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