ST STM32F31xx

Universal synchronous asynchronous receiver
transmitter (USART)
UM1581
534/584
DocID023800 Rev 1
 USART Request register, Address offset: 0x18
 uint16_t USART_TypeDef::RESERVED3
 Reserved, 0x1A
 __IO uint32_t USART_TypeDef::ISR
 USART Interrupt and status register, Address offset: 0x1C
 __IO uint32_t USART_TypeDef::ICR
 USART Interrupt flag Clear register, Address offset: 0x20
 __IO uint16_t USART_TypeDef::RDR
 USART Receive Data register, Address offset: 0x24
 uint16_t USART_TypeDef::RESERVED4
 Reserved, 0x26
 __IO uint16_t USART_TypeDef::TDR
 USART Transmit Data register, Address offset: 0x28
 uint16_t USART_TypeDef::RESERVED5
 Reserved, 0x2A
23.1.2 USART_InitTypeDef
USART_InitTypeDef is defined in the stm32f30x_usart.h
Data Fields
 uint32_t USART_BaudRate
 uint32_t USART_WordLength
 uint32_t USART_StopBits
 uint32_t USART_Parity
 uint32_t USART_Mode
 uint32_t USART_HardwareFlowControl
Field Documentation
 uint32_t USART_InitTypeDef::USART_BaudRate
 This member configures the USART communication baud rate. The baud rate is
computed using the following formula: IntegerDivider = ((PCLKx) / (16 *
(USART_InitStruct->USART_BaudRate)))FractionalDivider = ((IntegerDivider -
((uint32_t) IntegerDivider)) * 16) + 0.5
 uint32_t USART_InitTypeDef::USART_WordLength
 Specifies the number of data bits transmitted or received in a frame. This
parameter can be a value of USART_Word_Length
 uint32_t USART_InitTypeDef::USART_StopBits
 Specifies the number of stop bits transmitted. This parameter can be a value of
USART_Stop_Bits
 uint32_t USART_InitTypeDef::USART_Parity
 Specifies the parity mode. This parameter can be a value of USART_Parity
 uint32_t USART_InitTypeDef::USART_Mode
 Specifies wether the Receive or Transmit mode is enabled or disabled. This
parameter can be a value of USART_Mode
 uint32_t USART_InitTypeDef::USART_HardwareFlowControl