The hysteresis functionality can be used in both continuous and sampling mode. Writing a one to the BOD33 Hysteresis bit (BOD33.HYST) in the BOD33 register will add hysteresis to the BOD33 threshold level. Writing a one to the BOD12 Hysteresis bit (BOD12.HYST) in the BOD12 register will add hysteresis to the BOD12 threshold level.