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ST STM32F40 Series User Manual

ST STM32F40 Series
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Contents RM0090
7/1422 Doc ID 018909 Rev 4
7.4.4 GPIO port pull-up/pull-down register (GPIOx_PUPDR)
(x = A..I/) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
7.4.5 GPIO port input data register (GPIOx_IDR) (x = A..I) . . . . . . . . . . . . . 200
7.4.6 GPIO port output data register (GPIOx_ODR) (x = A..I) . . . . . . . . . . . 200
7.4.7 GPIO port bit set/reset register (GPIOx_BSRR) (x = A..I) . . . . . . . . . . 201
7.4.8 GPIO port configuration lock register (GPIOx_LCKR)
(x = A..I) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
7.4.9 GPIO alternate function low register (GPIOx_AFRL) (x = A..I) . . . . . . 202
7.4.10 GPIO alternate function high register (GPIOx_AFRH)
(x = A..I) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
7.4.11 GPIO register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
8 System configuration controller (SYSCFG) . . . . . . . . . . . . . . . . . . . . 206
8.1 I/O compensation cell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
8.2 SYSCFG registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
8.2.1 SYSCFG memory remap register (SYSCFG_MEMRMP) . . . . . . . . . . 206
8.2.2 SYSCFG peripheral mode configuration register (SYSCFG_PMC)
for STM32F405xx/07xx and STM32F415xx/17xx . . . . . . . . . . . . . . . . 207
8.2.3 SYSCFG peripheral mode configuration register (SYSCFG_PMC)
for STM32F42xxx and STM32F43xxx . . . . . . . . . . . . . . . . . . . . . . . . . 207
8.2.4 SYSCFG external interrupt configuration register 1
(SYSCFG_EXTICR1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
8.2.5 SYSCFG external interrupt configuration register 2
(SYSCFG_EXTICR2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
8.2.6 SYSCFG external interrupt configuration register 3
(SYSCFG_EXTICR3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
8.2.7 SYSCFG external interrupt configuration register 4
(SYSCFG_EXTICR4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
8.2.8 Compensation cell control register (SYSCFG_CMPCR) . . . . . . . . . . . 210
8.2.9 SYSCFG register maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
9 DMA controller (DMA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
9.1 DMA introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
9.2 DMA main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
9.3 DMA functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
9.3.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
9.3.2 DMA transactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
9.3.3 Channel selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
9.3.4 Arbiter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

Table of Contents

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ST STM32F40 Series Specifications

General IconGeneral
BrandST
ModelSTM32F40 Series
CategoryMicrocontrollers
LanguageEnglish

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