Correspondence between API registers and API
low-layer driver functions
LL_USART_DisableDirectionTx
LL_USART_EnableDirectionTx
LL_USART_GetTransferDirection
LL_USART_SetTransferDirection
LL_USART_ConfigHalfDuplexMode
LL_USART_ConfigMultiProcessMode
LL_USART_ConfigSmartcardMode
LL_USART_DisableSCLKOutput
LL_USART_EnableSCLKOutput
LL_USART_IsEnabledSCLKOutput
LL_USART_GetClockPolarity
LL_USART_SetClockPolarity
LL_USART_GetLastClkPulseOutput
LL_USART_SetLastClkPulseOutput