Refer to the PDF data sheet for device specific package drawings
The eUSCI modules are used for serial data communication. The eUSCI module supports synchronous communication protocols such as SPI (3-pin or 4-pin) and I2C, and asynchronous communication protocols such as UART, enhanced UART with automatic baud-rate detection, and IrDA.
The eUSCI_An module provides support for SPI (3-pin or 4-pin), UART, enhanced UART, and IrDA.
The eUSCI_Bn module provides support for SPI (3-pin or 4-pin) and I2C.
The MSP432P401x MCUs offer up to four eUSCI_A and four eUSCI_B modules.