Zephyr ncs sleep modes

Zephyr and Nordic ncs Sleep Modes 2022-01-15 Tuesday

Some posts and links to follow:

• https://devzone.nordicsemi.com/f/nordic-q-a/83227/how-to-put-nrf52832-into-a-deep-sleep-mode-for-some-amount-of-time-as-well-as-wake-it-up-from-deep-sleep-mode-which-header-file-contains-all-these-functionalities/345474#345474
And from this post, note however these forum replies are for Nordic nRF5x family parts:
• https://devzone.nordicsemi.com/f/nordic-q-a/51648/how-to-put-nrf52840-to-deep-sleep-system-off/207410#207410 post ~two years ago (2019) by Nordic Semi Amanda Hsieh
• https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.nrf52832.ps.v1.1%2Fpower.html&cp=4_2_0_17_1&anchor=unique_2047546596