(1 << TXEN1) | /* Enable transmitter */
(1 << RXCIE1) | /* Enable receive interrupts */
(1 << UDRIE1)); /* Enable transmit empty interrupts */
(1 << TXEN1) | /* Enable transmitter */
(1 << RXCIE1) | /* Enable receive interrupts */
(1 << UDRIE1)); /* Enable transmit empty interrupts */