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 bits. The four operating modes are:

Refer to Table 1 for more information.

The Brown-out Reset voltage level is selectable by configuring the BORV bits.

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 and the BOR bit will be cleared, indicating the Brown-out Reset condition occurred. See Figure 1.