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).
USCI_A0 can be configured to handle LIN,IrDA,SPI and asynchronous serial communication (UART) while USCI_B0 can handle SPI and I2C. MSP430G2553 has two USCI modules names as USCI_A0 and USCI_B0 for handling multiple communication formats. The peripheral is designed in such a way that it can handle multiple serial communication formats ,synchronous as well as asynchronous like SPI, I2C,IrDA, UART etc.
In MSP430, serial communication is handled by an on chip peripheral called USCI ( Universal Serial Communications Interface).
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