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STMicroelectronics STM32F407 - Page 8

STMicroelectronics STM32F407
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Contents RM0090
8/1731 DocID018909 Rev 11
8.3.7 I/O alternate function input/output . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
8.3.8 External interrupt/wakeup lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
8.3.9 Input configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
8.3.10 Output configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
8.3.11 Alternate function configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
8.3.12 Analog configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
8.3.13 Using the OSC32_IN/OSC32_OUT pins as GPIO PC14/PC15
port pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
8.3.14 Using the OSC_IN/OSC_OUT pins as GPIO PH0/PH1 port pins . . . . 280
8.3.15 Selection of RTC_AF1 and RTC_AF2 alternate functions . . . . . . . . . . 281
8.4 GPIO registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
8.4.1 GPIO port mode register (GPIOx_MODER) (x = A..I/J/K) . . . . . . . . . . 283
8.4.2 GPIO port output type register (GPIOx_OTYPER)
(x = A..I/J/K) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
8.4.3 GPIO port output speed register (GPIOx_OSPEEDR)
(x = A..I/J/K) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
8.4.4 GPIO port pull-up/pull-down register (GPIOx_PUPDR)
(x = A..I/J/K) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
8.4.5 GPIO port input data register (GPIOx_IDR) (x = A..I/J/K) . . . . . . . . . . 285
8.4.6 GPIO port output data register (GPIOx_ODR) (x = A..I/J/K) . . . . . . . . 285
8.4.7 GPIO port bit set/reset register (GPIOx_BSRR) (x = A..I/J/K) . . . . . . . 286
8.4.8 GPIO port configuration lock register (GPIOx_LCKR)
(x = A..I/J/K) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
8.4.9 GPIO alternate function low register (GPIOx_AFRL) (x = A..I/J/K) . . . 287
8.4.10 GPIO alternate function high register (GPIOx_AFRH)
(x = A..I/J) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
8.4.11 GPIO register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
9 System configuration controller (SYSCFG) . . . . . . . . . . . . . . . . . . . . 291
9.1 I/O compensation cell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
9.2 SYSCFG registers for STM32F405xx/07xx and STM32F415xx/17xx . . 291
9.2.1 SYSCFG memory remap register (SYSCFG_MEMRMP) . . . . . . . . . . 291
9.2.2 SYSCFG peripheral mode configuration register (SYSCFG_PMC) . . 292
9.2.3 SYSCFG external interrupt configuration register 1
(SYSCFG_EXTICR1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
9.2.4 SYSCFG external interrupt configuration register 2
(SYSCFG_EXTICR2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
9.2.5 SYSCFG external interrupt configuration register 3
(SYSCFG_EXTICR3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

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