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ST STM32L4x6 User Manual

ST STM32L4x6
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Contents RM0351
10/1693 DocID024597 Rev 3
10.5.1 DMA interrupt status register (DMA_ISR) . . . . . . . . . . . . . . . . . . . . . . 307
10.5.2 DMA interrupt flag clear register (DMA_IFCR) . . . . . . . . . . . . . . . . . . 308
10.5.3 DMA channel x configuration register (DMA_CCRx)
(x = 1..7 , where x = channel number) . . . . . . . . . . . . . . . . . . . . . . . . 309
10.5.4 DMA channel x number of data register (DMA_CNDTRx) (x = 1..7,
where x = channel number) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
10.5.5 DMA channel x peripheral address register (DMA_CPARx) (x = 1..7,
where x = channel number) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
10.5.6 DMA channel x memory address register (DMA_CMARx) (x = 1..7,
where x = channel number) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312
10.5.7 DMA1 channel selection register (DMA1_CSELR) . . . . . . . . . . . . . . . 313
10.5.8 DMA2 channel selection register (DMA2_CSELR) . . . . . . . . . . . . . . . 315
10.5.9 DMA register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
11 Nested vectored interrupt controller (NVIC) . . . . . . . . . . . . . . . . . . . . 319
11.1 NVIC main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
11.2 SysTick calibration value register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
11.3 Interrupt and exception vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
12 Extended interrupts and events controller (EXTI) . . . . . . . . . . . . . . . 324
12.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
12.2 EXTI main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
12.3 EXTI functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
12.3.1 EXTI block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
12.3.2 Wakeup event management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
12.3.3 Peripherals asynchronous Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . 326
12.3.4 Hardware interrupt selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
12.3.5 Hardware event selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
12.3.6 Software interrupt/event selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
12.4 EXTI interrupt/event line mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
12.5 EXTI registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
12.5.1 Interrupt mask register 1 (EXTI_IMR1) . . . . . . . . . . . . . . . . . . . . . . . . 329
12.5.2 Event mask register 1 (EXTI_EMR1) . . . . . . . . . . . . . . . . . . . . . . . . . . 329
12.5.3 Rising trigger selection register 1 (EXTI_RTSR1) . . . . . . . . . . . . . . . . 330
12.5.4 Falling trigger selection register 1 (EXTI_FTSR1) . . . . . . . . . . . . . . . . 330
12.5.5 Software interrupt event register 1 (EXTI_SWIER1) . . . . . . . . . . . . . . 331
12.5.6 Pending register 1 (EXTI_PR1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332

Table of Contents

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ST STM32L4x6 Specifications

General IconGeneral
BrandST
ModelSTM32L4x6
CategoryMicrocontrollers
LanguageEnglish

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