Dma Request Mapping - ST STM32L4x6 Reference Manual

Direct memory access controller (DMA)
10.4.7

DMA request mapping

DMA controller
The hardware requests from the peripherals (TIM1/2/3/4/5/6/7/8/15/16/17, ADC1/2/3,
DAC1/2, SPI1/2/3, I2C1/2/3, SDMMC1, QUADSPI, SWPMI1, DFSDM, SAI1/2, AES,
USART1/2/3, UART4/5 and LPUART1) are mapped to the DMA1 or DMA2 channels (1 to 7)
through the DMA1/2 channel selection register.
Refer to
The peripheral DMA requests can be independently activated/de-activated by programming
the DMA control bit in the registers of the corresponding peripheral.
302/1693
Figure 24: DMA1 request mapping and Figure 25: DMA2 request
DocID024597 Rev 3
RM0351
mapping.