S3F84B8_UM_REV 1.00 8 RESET AND POWER-DOWN8-2+-VREF BGRVDDVREFV INV DDN.FInternal SystemRESETBWhen the VDD levelis lower than V LVRComparatorNOTES:1. The target of voltage detection level is the one you selected at smart option 3FH.2. BGR is Band Gap voltage ReferenceLongger than 1usN.FRESETWatchdog RESETLongger than 1usSmart Option 3FH.7Figure 8-1 Low Voltage Reset CircuitNOTE: To program the duration of oscillation stabilization interval, you must set the basic timer control register, BTCON,before entering the Stop mode. If you do not want to use the basic timer watchdog function (which causes a systemreset when a basic timer counter overflow occurs), you can disable it by writing “1010B” to the upper nibble of BTCON.
