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ST STM32WL55JC User Manual

ST STM32WL55JC
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Contents RM0453
16/1454 RM0453 Rev 2
13.5 DMA interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465
13.6 DMA registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465
13.6.1 DMA interrupt status register (DMA_ISR) . . . . . . . . . . . . . . . . . . . . . . 465
13.6.2 DMA interrupt flag clear register (DMA_IFCR) . . . . . . . . . . . . . . . . . . 468
13.6.3 DMA channel x configuration register (DMA_CCRx) . . . . . . . . . . . . . . 469
13.6.4 DMA channel x number of data to transfer register (DMA_CNDTRx) . 474
13.6.5 DMA channel x peripheral address register (DMA_CPARx) . . . . . . . . 475
13.6.6 DMA channel x memory address register (DMA_CMARx) . . . . . . . . . 475
13.6.7 DMA register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 476
14 DMA request multiplexer (DMAMUX) . . . . . . . . . . . . . . . . . . . . . . . . . 479
14.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479
14.2 DMAMUX main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480
14.3 DMAMUX implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480
14.3.1 DMAMUX1 instantiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480
14.3.2 DMAMUX1 mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 481
14.4 DMAMUX functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 483
14.4.1 DMAMUX block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 483
14.4.2 DMAMUX signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484
14.4.3 DMAMUX channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484
14.4.4 DMAMUX secure/non-secure channels . . . . . . . . . . . . . . . . . . . . . . . . 485
14.4.5 DMAMUX privileged / unprivileged channels . . . . . . . . . . . . . . . . . . . . 485
14.4.6 DMAMUX request line multiplexer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485
14.4.7 DMAMUX request generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 488
14.5 DMAMUX interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489
14.6 DMAMUX registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 491
14.6.1 DMAMUX request line multiplexer channel x configuration register
(DMAMUX_CxCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 491
14.6.2 DMAMUX request line multiplexer interrupt channel status register
(DMAMUX_CSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 492
14.6.3 DMAMUX request line multiplexer interrupt channel clear flag register
(DMAMUX_CCFR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 492
14.6.4 DMAMUX request generator channel x configuration register
(DMAMUX_RGxCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 493
14.6.5 DMAMUX request generator interrupt status register
(DMAMUX_RGSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494
14.6.6 DMAMUX request generator interrupt clear flag register
(DMAMUX_RGCFR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495

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ST STM32WL55JC Specifications

General IconGeneral
BrandST
ModelSTM32WL55JC
CategoryMicrocontrollers
LanguageEnglish

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