NXP Semiconductors K32 L2A Series, Reference Manual, Page: 1090 / 1379

Reset
RUN Valid
SCG Modes
Run
HSRUN Valid
SCG Modes
SIRC FIRC
SYS
PLL
SOSC
Run
High Speed
SIRC FIRC
SYS
PLL
SOSC
VLPRUN Valid
SCG Modes
SIRC
SOSC
Run
Very Low Power
SCG Valid Mode Transitions
Figure 42-2. SCG Valid Mode Transition Diagram
NOTE
When a transition between run modes (RUN, HSRUN,
VLRUN) is required, the SCG should complete the switch to
the clock mode as defined in the SCG clock control register
first. Once the switch to the clock mode is completed, the
system can then initiate the request for the selected run mode.
Functional description
K32 L2A Reference Manual, Rev. 2, 01/2020
1090 NXP Semiconductors