When you are trying to understand how one component of an electronic device works, it is important to start at the very beginning. If you want an in-depth guide on the PIC microcontroller, you may click here to check it out. But we can go over some of the basics, in order to give you an idea about how this microcontroller operates. The first thing you need to know is that the PIC microcontroller is something that controls one aspect of the application. Microcontrollers are integrated within a single chip, and this chip provides them with both memory and processing capability.
These microcontrollers can use different peripherals as well, and that will depend a lot on how it is being used. At the end of the day, you are going to need to do some research if you are thinking of building or crafting up an electronic device where you will use a microcontroller. It is vital that these are never used without proper knowledge, as you may get into a situation where you have tried something and it has not worked, and you may think something is wrong with the microcontroller. But it is simply that you did not get the process right.
There are various options within a microcontroller, and these configuration bits are going to allow you to make some changes and tweaks in its performance. For instance, you have the oscillator type, whether you want to use low voltage programming, a fail safe clock monitor, a power-up timer and a watchdog timer. There is also an internal or external switchover that you may use. Each of these are optional, and they are only to be used if you need them, and if you know exactly how they are going to impact the microcontroller and your electronic device in general.