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| -rw-r--r-- | docs/library/pyb.rst | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/docs/library/pyb.rst b/docs/library/pyb.rst index 478ca7f27..98cb763ee 100644 --- a/docs/library/pyb.rst +++ b/docs/library/pyb.rst @@ -169,7 +169,8 @@ Power related functions Put the pyboard into a "deep sleep" state. This reduces power consumption to less than 50 uA. To wake from this - sleep state requires an external interrupt or a real-time-clock event. + sleep state requires a real-time-clock event, or an external interrupt + on X1 (PA0=WKUP) or X18 (PC13=TAMP1). Upon waking the system undergoes a hard reset. See :meth:`rtc.wakeup` to configure a real-time-clock wakeup event. |