/** Retrieves the currently selected SPI mode, once the SPI interface has been configured.
*
* \return \ref SPI_MODE_MASTER if the interface is currently in SPI Master mode, \ref SPI_MODE_SLAVE otherwise
/** Retrieves the currently selected SPI mode, once the SPI interface has been configured.
*
* \return \ref SPI_MODE_MASTER if the interface is currently in SPI Master mode, \ref SPI_MODE_SLAVE otherwise