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EES SNOT DS Berd, , i'd tee + LCQuired,, , lie , serial communication, aj] bits in th, It fer on t, , © word are sent through a Single line se, ing word is stored in the buf h, 1, com, , tially. The, © sender side. Then, bit-wise each bit is taken and, 1 the single communication channel in a serial, , gent 3 a buffer and coming bits, , per, , d in sender buffer. The a, , Be HOR line is required, , eee of the data transfer js, S}, , the, , dvanta g, to send a, decreas, , here are three different modes inw, There, , € of the serial communication is tha, NY number of }, , ed in Serial, hich Serial ¢, , t only one, its of the communication data. But, communication,, , are : Simplex: It allows transmission of data in Only one direction i.e, data, (i) tion. It is very rarely Used in dats (. mMunication because the re, one aires cate with the sender.. Examples of simplex communication mode, serisiin broadcasting., , telev"s, , ommunication can be implement. These, , travel in only, , ceiver cannot, , are radio and, , : ission of data in either direction, but not at the same, , -. -duplex: It allows the transmission 0 ' |, , _ nee ae is needed for this mode. The time required to switch a half-duplex line from, , Sane to the other is called a turn around time., one ¢ 1, , . . . . *. . uly., , ta in both direction simultaneo, , = : lex: It allows the transmission of da a, , ee ee is possible on a four-wire link, with two-wire dedicated to ea, , l-duplex we ,, , F ee of transmission. 7 eke, , is mmunication lines which is used by the end device, The co, , called data link and how, he information will be transfer from one end, the, , to the other end is accomplished by a protocal., , 1. Asynchronous and Synchronous Transmission, 8.8.1. As, , icati method is, i i nication. One, ays of implementing the ae eae, ous., ag od is synchron, ae transmission and other meth yn, asyn, , 8.8.1.1. Asynchronous Data Transfer, , f the character, ial bit is inserted at both ends o, data transmission a special bit ig i bit, the character bits and, masyncheonpus ter will consists of three p ao is used to indicate the paemeivae, hei ne - oe Bai the start bit, is always s 1, called the stop bit. The Fig., stop bits. The as ? ’ bit-of the cleanse eam aa, the character. T e las : unication., shoal a format of asynchronous serial comm