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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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STM32F469AE 데이터시트(PDF) 23 Page - STMicroelectronics |
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STM32F469AE 데이터시트(HTML) 23 Page - STMicroelectronics |
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23 / 217 page  DocID028196 Rev 3 23/217 STM32F469xx Functional overview 46 Figure 6. STM32F469xx Multi-AHB matrix 2.8 DMA controller (DMA) The devices feature two general-purpose dual-port DMAs (DMA1 and DMA2) with 8 streams each. They are able to manage memory-to-memory, peripheral-to-memory and memory-to-peripheral transfers. They feature dedicated FIFOs for APB/AHB peripherals, support burst transfer and are designed to provide the maximum peripheral bandwidth (AHB/APB). The two DMA controllers support circular buffer management, so that no specific code is needed when the controller reaches the end of the buffer. The two DMA controllers also have a double buffering feature, which automates the use and switching of two memory buffers without requiring any special code. Each stream is connected to dedicated hardware DMA requests, with support for software trigger on each stream. Configuration is made by software and transfer sizes between source and destination are independent. |
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