ST STM32L4+ Series Reference Manual page 376

Direct memory access controller (DMA)
11.3 DMA implementation
11.3.1 DMA1 and DMA2
DMA1 and DMA2 are implemented with the hardware configuration parameters shown in
the table below.
Number of channels
11.3.2 DMA request mapping
The DMA controller is connected to DMA requests from the AHB/APB peripherals through
the DMAMUX peripheral.
For the mapping of the different requests, refer to the
implementation.
11.4 DMA functional description
11.4.1 DMA block diagram
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Table 48. DMA1 and DMA2 implementation
Feature
RM0432 Rev 6
DMA1
7
Section 12.3: DMAMUX
RM0432
DMA2
7