In this article we we will configure USCI_A0 in MSP430G2553 to handle asynchronous serial communication or commonly known as UART mode.The UART mode uses two pins to transmit(UCA0TXD) and receive data(UCA0RXD) .Asynchronous serial communication is widely used for communicating with external devices like PC/Laptops,GSM modems,GPS modules etc.It also forms the basis for many standard protocols like RS232,RS422,RS485 etc.
Full Tutorial is Available here
http://xanthium.in/Serial-Communication-MSP430-UART-USCI_A
Sourcecodes can be downloaded from our Github repo.