EasyManuals Logo

ST STM32L0x3 User Manual

ST STM32L0x3
1043 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #11 background imageLoading...
Page #11 background image
RM0367 Rev 7 11/1043
RM0367 Contents
40
Circular mode (in memory-to-peripheral/peripheral-to-memory transfers) . . . . .273
Memory-to-memory mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .273
Peripheral-to-peripheral mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .274
Programming transfer direction, assigning source/destination . . . . . . . . . . . . . .274
11.4.5 DMA data width, alignment and endianness . . . . . . . . . . . . . . . . . . . . 274
Addressing AHB peripherals not supporting byte/half-word write transfers . . . .275
11.4.6 DMA error management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
11.5 DMA interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
11.6 DMA registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
11.6.1 DMA interrupt status register (DMA_ISR) . . . . . . . . . . . . . . . . . . . . . . 277
11.6.2 DMA interrupt flag clear register (DMA_IFCR) . . . . . . . . . . . . . . . . . . 279
11.6.3 DMA channel x configuration register (DMA_CCRx) . . . . . . . . . . . . . . 280
11.6.4 DMA channel x number of data to transfer register (DMA_CNDTRx) . 283
11.6.5 DMA channel x peripheral address register (DMA_CPARx) . . . . . . . . 284
11.6.6 DMA channel x memory address register (DMA_CMARx) . . . . . . . . . 284
11.6.7 DMA channel selection register (DMA_CSELR) . . . . . . . . . . . . . . . . . 286
11.6.8 DMA register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
12 Nested vectored interrupt controller (NVIC) . . . . . . . . . . . . . . . . . . . . 289
12.1 Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
12.2 SysTick calibration value register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
12.3 Interrupt and exception vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
13 Extended interrupt and event controller (EXTI) . . . . . . . . . . . . . . . . . 292
13.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
13.2 EXTI main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
13.3 EXTI functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
13.3.1 EXTI block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
13.3.2 Wakeup event management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
13.3.3 Peripherals asynchronous interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . 294
13.3.4 Hardware interrupt selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
13.3.5 Hardware event selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
13.3.6 Software interrupt/event selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
13.4 EXTI interrupt/event line mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
13.5 EXTI registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
13.5.1 EXTI interrupt mask register (EXTI_IMR) . . . . . . . . . . . . . . . . . . . . . . 297
13.5.2 EXTI event mask register (EXTI_EMR) . . . . . . . . . . . . . . . . . . . . . . . . 297

Table of Contents

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the ST STM32L0x3 and is the answer not in the manual?

ST STM32L0x3 Specifications

General IconGeneral
BrandST
ModelSTM32L0x3
CategoryMicrocontrollers
LanguageEnglish

Related product manuals