A wakeup signal can be generated from 20 different sources, the source number 0 is the API, the
source number 1 is the RTC and the other ones are external sources that are located on some
specifics pads of some ports that has also communication functionalities like CAN or LIN. This
can allow, for example, to put the device en low power mode while awaiting
information/commands from CAN.
The following table shows different wakeup sources, their id numbers, modules, IRQ
associations and flags.
Figure 82 : Wakeup vector mapping (R.M. Rev8 – Table 12-1)
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