The clock module provides the following oscillators:
- LFOSC: Internal low-frequency oscillator (32 kHz)
- SYSOSC: Internal high-frequency oscillator (4 MHz or 32 MHz with factory trim, 16 MHz or 24 MHz with user trim)
The following clocks are distributed by the clock module for use by the processor, bus, and peripherals:
- MCLK: Main system clock for PD1 peripherals, derived from SYSOSC or LFCLK, active in RUN and SLEEP modes
- CPUCLK: Clock for the processor (derived from MCLK), active in RUN mode
- ULPCLK: Ultra-low power clock for PD0 peripherals, active in RUN, SLEEP, STOP, and STANDBY modes
- MFCLK: 4-MHz fixed mid-frequency clock for peripherals, available in RUN, SLEEP, and STOP modes
- LFCLK: 32-kHz fixed low-frequency clock for peripherals or MCLK, active in RUN, SLEEP, STOP, and STANDBY modes
- ADCCLK: ADC clock, available in RUN, SLEEP and STOP modes
- CLK_OUT: Used to output a clock externally, available in RUN, SLEEP, STOP, and STANDBY modes
For more details, see the CKM chapter of the MSPM0 L-Series 32-MHz Microcontrollers Technical Reference Manual.