MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -MCLR:-The Master Clear pin is an optional external reset that is activated by pulling the pin low. The MCLR pin can be setup as an standard digital input pin or be enabled as an external reset pin.

Detailed explanation-2: -The MCLR pin provides two specific device functions: Device Reset, and Device Programming and Debugging. If programming and debugging are not required in the end application, a direct connection to V DD may be all that is required.

Detailed explanation-3: -During a LVD reset, the RESET pin is held low, thus permitting the MCU to reset other devices. After the device is powered on the supply voltage starts increasing. when the supply voltage reaches around 1.1V, the internal pull-up on the RESET pin is enabled and the core is initial-ized.

Detailed explanation-4: -Because the microcontroller must differenti‑ ate between normal and programming mode, the MCLR pin usually reaches a voltage of approximately 12V to en‑ ter programming mode.

Detailed explanation-5: -With the help of three left bits (IRP, RP1, and RP0) one can control the transition between the banks: IRP-Register Bank Select bit, used for indirect addressing method. RP1:RP0:-Register Bank Select bits, used for direct addressing method.