Sleep Mode

When the device enters Sleep mode, the system clock to the module is shut down, therefore no DMA operation is supported in Sleep. Once the system clock is disabled, the requisite read and write clocks are also disabled, without which the DMA cannot perform any of its tasks.

Any transfers that may be in progress are resumed on exiting from Sleep mode. Register contents are not affected by the device entering or leaving Sleep mode. It is recommended that DMA transactions be allowed to finish before entering Sleep mode.