6.3. Cortex-M3 reset modes

The reset signals present in the processor design enable you to reset different parts of the design independently. Table 6.4 shows the reset signals, and the combinations and possible applications that you can use them in.

Table 6.4. Reset modes

Reset modeSYSRESETnnTRSTPORESETnApplication
Power-on resetx00Reset at power up, full system reset. Cold reset.
System reset0x1Reset of processor core and system components, excluding debug.
SWJ-DP reset101Reset of SWJ-DP logic.


PORESETn resets a superset of the SYSRESETn logic.

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