SLAZ755A May 2024 – October 2024 MSPM0L1227 , MSPM0L1228 , MSPM0L2227 , MSPM0L2228
ADVANCE INFORMATION
UART Module
Functional
UART End of Transmission interrupt not set when only TXE is enabled
UART End Of Transmission (EOT) interrupt does not trigger when the device is set for transmit only (CTL0.TXE = 1, CTL0.RXE = 0). EOT successfully triggers when device is set for transmit and receive (CTL0.TXE = 1, CTL0.RXE = 1)
Set both CTL0.TXE and CTL0.RXE bits when utilizing the UART end of transmission interrupt. Note that you do not need to assign a pin as UART receive.