9.2 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 Brown-out Reset module has four operating modes controlled by the BOREN<1:0> bits in Configuration Words. 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 “BOR Operating Conditions” table for more information.
The Brown-out Reset voltage level is selectable by configuring the BORV<1:0> bits in Configuration Words.
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.