/* Check if the Rx fifo is empty or not. 
@method UART_IsRXFIFONotEmpty  */
Boolean UART_IsRXFIFONotEmpty(UART_TypeDef *UARTx)
/* Check if the Rx fifo is empty or not. 
@method UART_IsRXFIFONotEmpty  */
Boolean UART_IsRXFIFONotEmpty(UART_TypeDef *UARTx)
{
    _ASSERT(IS_UART(UARTx));
    return (Boolean)(!(UARTx->STATUS.bit.RX_EMPTY));
}