STM32F446RC datasheet(19/202 Pages) STMICROELECTRONICS

No. de pieza	STM32F446RC

Descripción Electrónicos	ARM Cortex-M4 32b MCUFPU, 225DMIPS, up to 512kB Flash/1284KB RAM, USB OTG HS/FS, 17 TIMs, 3 ADCs, 20 comm. interfaces

PDF	202 Pages

Scroll/Zoom	100%

Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

Página de inicio	http://www.st.com

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19 / 202 page

DocID027107 Rev 6

19/202

STM32F446xC/E

Functional overview

Figure 4. STM32F446xC/E and Multi-AHB matrix

3.8

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.

STM32F446RC Datasheet(PDF) 19 Page - STMicroelectronics