67.4.2.4 Idle Mode

In Idle mode, power consumption of the device versus response time is optimized. In this mode, only the core clock is stopped. The peripheral clocks, including the DDR controller clock, can be enabled. The current consumption in this mode is application-dependent and can be reduced by enabling Dynamic Clock Gating (L2CC_POWCR.DCKGATEN = 1).

This mode is entered via the Wait for Interrupt (WFI) instruction and PCK disabling.

The processor can be awakened from an interrupt. The system resumes where it was before entering WFI mode.