Advantech PCA-6774 user manual Table C.3 DMA channel assignments

C.3 DMA channel assignments

Table C.3: DMA channel assignments

Channel Function

0Available

1Available (audio)

2Floppy disk (8-bit transfer)

3Available (parallel port)

4Cascade for DMA controller 1

5Available

6Available

7Available

* Audio DMA select 1, 3, or 5

** Parallel port DMA select 1 (LPT2) or 3 (LPT1)

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