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What is the difference between dma and channel management? This problem may be often seen in our daily study or work. I hope you can gain a lot from this question. The following is the reference content that the editor brings to you, let's take a look at it!

What is the difference between dma and channel management? The following article will introduce you. There is a certain reference value, friends in need can refer to, hope to help you.

What are the similarities and differences between the DMA channel control mode and the Ipaw O channel control mode:

The channel control (Channel Control) mode is similar to the DMA mode, which is also a memory-centered control mode that realizes the direct exchange of data between the device and the memory.

Different from the DMA mode, in the DMA mode, the direction of data transmission, the memory address where the data is stored and the length of the data block are all controlled by CPU, while in the channel mode, these are all controlled by the channel. In addition, DMA mode requires at least one DMA controller for each device, and one channel controller can control multiple devices.

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