17.4.2.1.5 Brown-out Reset (BOR)
This device has a simple Brown-out Reset (BOR) capability. If the voltage supplied to the regulator is inadequate to maintain a regulated level, the regulator Reset circuitry generates a BOR event, which is synchronized with the system clock, SYS_CLK, before asserting the SYSRST. The BOR flag bit (RCON[1]) captures this event. For more information, see Electrical Characteristics from Related Links.