Adlink ACL-8216 Manual do Utilizador descarregar pdf (Página 20)

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Installation

2.7 DMA Channel Setting

The A/D data transfer of ACL-8216 is designed with DMA transfer capability.

The setting of DMA channel 1 or channel 3 is controlled by the jumpers JP8

and JP7. The possible settings are shown below.

Note: On floppy disk only machine, we suggest you to set DMA level 3. If

you have hard disk equipped computer, level 1 is preferable.

DRQ

JP8

DACK

JP7

13

NO DMA

DMA 1

DMA 3

(Default)

X

DRQ

JP8

DACK

JP7

DRQ

JP8

DACK

JP7

13

X

13

X

13

X

13

X

13

X

Figure 2.4 DMA Channel Setting

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