Hysteresis functionality according to Figure shall be used to avoid an oscillating behaviour in low
and high voltage conditions. Hysteresis shall be minimum 100mV. The direction of the hysteresis
shall be according to Figure above.
Since hardware circuits for measuring node power supply voltage have inaccuracy, the maximum
total inaccuracy must be calculated for all hardware and software affecting inaccuracy in voltage
supply measurement and appropriate margins used to ensure that communication is possible
within the specified voltage range above even if all circuits have maximum tolerance deviations