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(Direct Memory Access)

DMA refers to a data transfer method. It consists in accessing the central memory directly through the main data bus, without the main processor being aware of it.

On Atari platforms, DMA is used for Hard Drive and FloppyDrive data transfers. On STE?, TT? and Falcon030? platforms, DMA is used for sound playback and recording (Falcon030? only). On the Falcon030? platform, it is also used to transfer data from or to the DSP? memory. The BLiTTER chip also transfers its data using DMA.
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