/* Enables the USART for the specified USART in SPI mode.  */
void usart_spi_enable(USART_t *usart)
/* Enables the USART for the specified USART in SPI mode.  */
void usart_spi_enable(USART_t *usart)
{
	usart_tx_enable(usart);
	usart_rx_enable(usart);
}