what do they mean by UART multibuffer communication?

[RSolo.1]

Tell me about multibuffer communication in the registers of the UART. We have a description of the RXNE flag. "The RXNE flag can also be cleared by writing a zero to it. This clearing sequence is recommended only for multibuffer communication". It turns out that when using DMA, you can reset RXNE this way. But why? After all, DMA does this automatically during operation.

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Edited to add 'F4' and 'DMA' Labels.

[RSolo.1]

I understand, thank you. They just confused me with their text. I already thought that in some cases it needs to be done manually

[Andrew Neil]

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@RSolo.1 wrote:

I already thought that in some cases it needs to be done manually

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Indeed it does.