Lesson 4 .... Bus.

Bus:

We must have some "way" through data goes from one block to another,
That "way" is called "bus". Physically, it represents a group of 8, 16, or more wires.



There are two types of buses:

1-Address bus:
it consists of as many lines as the amount of memory we wish to address, and serves to transmit address from CPU memory.

2-Data bus:
it is as wide as data, in our case 8 bits or the connection line. First one , and connect all blocks inside the microcontroller.