9.2.4.1.1 LPDDR2 Power Fail Management

The DDR controller (MPDDRC) is used to manage the LPDDR memory when an uncontrolled power off occurs.

The DDR power rail must be monitored externally and generate an interrupt when a power fail condition is triggered. The interrupt handler must apply the sequence defined in the MPDDRC Low-power register (MPDDRC_LPR) by setting bit LPDDR2_PWOFF (LPDDR2 Power Off bit).