Different Serial Communication Protocolsĭifferent protocols are used in data communication for efficient transfer of data between different devices. So there is small difference between bit rate (bps) and baud rate. In modems, sometimes a signal change of signal transfers several bits of data. This is because baud rate is a modern terminology and is defined as the number of signal changes per second. However, the baud rate and bps are not necessarily equal. The rate of data in serial data communication is known as bits per second or bps. PIC microcontroller has a full-duplex, serial mode of Communication.Half and Full-Duplex Transmission Data Transfer Rate – Baud Rate If data can go both ways at the same time then it is Full duplex. If data is transmitted one way at a time, then it is half duplex. Duplex Transmission can be Half or Full duplex depending upon whether the data transfer is simultaneous or not. In contrast, a simplex transmission only sends data from one device to the other such as from computer to printer. Since more hardware is required in parallel communication mode, hence, serial communication is preferred.In data Transmission, if data can both be transmitted and received, it is a duplex transmission. Serial mode is used to transfer data to greater distances and parallel only works for short distances. In serial Communication, only a single wire is required to transfer n bits of data or one or two wires for ready and acknowledge signals whereas in parallel communication, n wires are required to transfer n bits of data. Serial vs Parallel TransferĬomputers transfer data in two ways: serial and parallel. You will also study the use of a communication component – UART (Universal Asynchronous Receiver Transmitter) present within the microcontroller.
In this tutorial, you will learn how to serially communicate a PC or any other device with a PIC microcontroller. Unlike parallel communication, where several bits are send at one time, Serial Communication is a process of transmitting data bit by bit. Serial communication example 2 What is serial communication ?.PC Serial Port vs Microcontrollers Serial Port.Different Serial Communication Protocols.