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12.8 Brown-out Reset (BOR)The configuration bit, BODEN, can enable or disablethe Brown-out Reset circuit. If VDD falls below VBOR(parameter D005, about 4V) for longer than TBOR(parameter #35, about 100 μS), the brown-out situationwill reset the device. If VDD falls below VBOR for lessthan TBOR, a RESET may not occur.Once the brown-out occurs, the device will remain inBrown-out Reset until VDD rises above VBOR. ThePower-up Timer then keeps the device in RESET forTPWRT (parameter #33, about 72 mS). If VDD should fallbelow VBOR during TPWRT, the Brown-out Reset processwill restart when VDD rises above VBOR, with thePower-up Timer Reset. The Power-up Timer is alwaysenabled when the Brown-out Reset circuit is enabled,regardless of the state of the PWRT configuration bit.