SLAZ741D March 2023 – August 2025 MSPM0L1105 , MSPM0L1106 , MSPM0L1303 , MSPM0L1304 , MSPM0L1305 , MSPM0L1306 , MSPM0L1343 , MSPM0L1344 , MSPM0L1345 , MSPM0L1346
UART Module
Functional
Incorrect UART data received with the fast clock request is disabled when clock transitions from SYSOSC to LFOSC
Scenario:
1. LFCLK selected as functional clock for UART
2. Baud rate of 9600 configured with 3x oversampling
3. UART fast clock request has been disabled
If the ULPCLK changes from SYSOSC to LFOSC in the middle of a UART RX transfer, it is observed that one bit is read incorrectly
Enable UART fast clock request while using UART in LPM modes.