1.3. Microcontroller Features

Microcontrollers from different manufacturers have different architectures and different capabilities. Some may suit a particular application while others may be totally unsuitable for the same application. Some of the hardware features of microcontrollers in general are described in this section.

1.3.1. Buses

The connections between various blocks of a computer system are called buses. A bus is a common set of wires that carry a specific type of information. In general, every computer system has three buses: address bus, data bus, and control bus.

An address bus carries the address information in a computer system. It is a unidirectional bus having 16 bits in small computer systems and 32 or more bits in larger ...

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