How does dma complicate hardware design

For us as developers however, by knowing what functionality is behind each memory address we can use the DMA for the following type of transfers:. They are used in case a busy resource is preventing the transfer from completing. DMA is used for moving data from one address of the memory to another. When used properly it can improve the efficiency of an embedded system.

The CPU can be more focused on performing calculations, without having to waste too many instruction cycles for transferring data. This can result in improving the speed of our program. Another benefit can be the reduction of power consumption.

The two common ways of transferring data without the use of DMA are:. Both methods require the CPU to be awake. This site uses Akismet to reduce spam. Learn how your comment data is processed. Previous Next. Principle of Operation There are many different types of DMA implementations, some of them for very specific use cases. Fig,1 Simplified DMA block diagram. Was this article helpful?

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