LL_USART_ClockInitTypeDef::LastBitClockPulse field
Specifies whether the clock pulse corresponding to the last transmitted data bit (MSB) has to be output on the SCLK pin in synchronous mode. This parameter can be a value of USART_LL_EC_LASTCLKPULSE. USART HW configuration can be modified afterwards using unitary functions LL_USART_SetLastClkPulseOutput(). For more details, refer to description of this function.