ST STM32F31xx

General-purpose I/Os (GPIO)
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DocID023800 Rev 1
12 General-purpose I/Os (GPIO)
12.1 GPIO Firmware driver registers structures
12.1.1 GPIO_TypeDef
GPIO_TypeDef is defined in the stm32f30x.h
Data Fields
 __IO uint32_t MODER
 __IO uint16_t OTYPER
 uint16_t RESERVED0
 __IO uint32_t OSPEEDR
 __IO uint32_t PUPDR
 __IO uint16_t IDR
 uint16_t RESERVED1
 __IO uint16_t ODR
 uint16_t RESERVED2
 __IO uint32_t BSRR
 __IO uint32_t LCKR
 __IO uint32_t AFR
 __IO uint16_t BRR
 uint16_t RESERVED3
Field Documentation
 __IO uint32_t GPIO_TypeDef::MODER
 GPIO port mode register, Address offset: 0x00
 __IO uint16_t GPIO_TypeDef::OTYPER
 GPIO port output type register, Address offset: 0x04
 uint16_t GPIO_TypeDef::RESERVED0
 Reserved, 0x06
 __IO uint32_t GPIO_TypeDef::OSPEEDR
 GPIO port output speed register, Address offset: 0x08
 __IO uint32_t GPIO_TypeDef::PUPDR
 GPIO port pull-up/pull-down register, Address offset: 0x0C
 __IO uint16_t GPIO_TypeDef::IDR
 GPIO port input data register, Address offset: 0x10
 uint16_t GPIO_TypeDef::RESERVED1
 Reserved, 0x12
 __IO uint16_t GPIO_TypeDef::ODR
 GPIO port output data register, Address offset: 0x14
 uint16_t GPIO_TypeDef::RESERVED2
 Reserved, 0x16
 __IO uint32_t GPIO_TypeDef::BSRR
 GPIO port bit set/reset registerBSRR, Address offset: 0x18
 __IO uint32_t GPIO_TypeDef::LCKR
 GPIO port configuration lock register, Address offset: 0x1C