Power Reset

The Power-on Reset (POR) initializes the system when the supply voltage is above the power-on threshold. The system will be held in the reset phase until the supply voltage has reached the minimum operating voltage. The power-on threshold V_work of the device is about 1.75 V.

Brown-out Reset is dependent on the Brown-out detector (BOD). BOD reset circuit puts the system into reset state when the supply falls below the Brown-Out Reset threshold.

For detailed description of the BOD reset, refer to "Brown-out Detector (BOD)".