14.4.2.2 Sleep Modes

The device can enter a sleep mode, during which the CPU is stopped. Peripherals may remain active or become idle, depending on the depth of the selected sleep mode.

Idle sleep mode: The CPU is stopped. Synchronous clocks are halted except when requested. The state of the logic and the contents of the SRAM are retained.
Standby sleep mode: The CPU and peripherals are stopped. The logic state and the contents of the SRAM are retained.

Refer to Sleep Mode Operation for more details on Idle and Standby sleep modes.

The PM is always active.

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