16.4.3.4 VDDCORE Reset

A VDDCORE reset occurs when VDDCORE is switched off.

The following actions result in a VDDCORE reset:

  • switching off the internal VDDCORE voltage regulator by writing SUPC_CR.VROFF to ‘1’
  • asserting the SHDN pin by writing SUPC_CR.SHDW to ‘1’ to switch off the external VDDCORE voltage regulator.

While exiting Backup mode, the VDDCORE reset signal is de-asserted by the Supply Controller.

RSTC_SR.RSTTYP is updated to report a backup reset.

Figure 16-6. VDDCORE Reset Timing Diagram
Note: Timings are defined in General Reset Timings.