14.2 Brown-out Reset (BOR)
The BOR circuit holds the device in Reset when VDD reaches a
selectable minimum level. Between the POR and BOR, complete voltage range coverage for
execution protection can be implemented. The BOR bit will be set to ‘0’ if
a BOR has occurred.
The BOR module has four operating modes controlled by the BOREN Configuration bits. The four operating modes are:
- BOR is always on
- BOR is off when in Sleep
- BOR is controlled by software
- BOR is always off
Refer to the BOR Operating Modes table for more information.
A VDD noise rejection filter prevents the BOR from triggering on small events. If VDD falls below VBOR for a duration greater than parameter TBORDC, the device will reset. Refer to the “Electrical Specifications” chapter for more details.