Parallel ports, power supply <br />and the clock oscillator <br />in this video we will explain: <br />::: Why we need parallel input/output. <br /> How simple logic circuits can be developed to give a flexible interface between the <br />microcontroller data bus and the outside world – these are the parallel ports. <br /> How external devices can be connected to the parallel port. <br /> The parallel input/output available on the PIC 16F84A.
