Chuong 2 - KT Truyen So Lieu

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<ul><li><p>M ha knh</p><p>d</p><p>9/16/2013 - 1</p></li><li><p>9/16/2013 - 2</p></li><li><p>(coding schemes)</p><p>Baudot (Emile Baudot)5 bit (32 m)</p><p>M EBCDIC (Extended Binary Coded Decimal Interchange Code)8 bit</p><p>M ASCII (American Standards Committee for Information Interchange)</p><p>Unicode</p><p>9/16/2013 - 3</p></li><li><p>M 8 bit EBCDIC</p><p>9/16/2013 - 4</p></li><li><p>M ASCII 7 bit</p><p>8 bit</p><p>9/16/2013 - 5</p></li><li><p>M ASCII</p><p>9/16/2013 - 6</p></li><li><p>- point).</p><p>- Multidrop).</p><p>Sao (Star).</p><p>Vng (Ring).</p><p>9/16/2013 - 7</p></li><li><p>9/16/2013 - 8</p></li><li><p>Bn song cng (half-duplex</p><p>9/16/2013 9</p></li><li><p>Song cng (full-duplex</p><p>(telephone).</p><p>9/16/2013 - 10</p></li><li><p>-9/16/2013 11</p></li><li><p>9/16/2013 - 12</p></li><li><p>9/16/2013 - 13</p></li><li><p>(Bn phm my tnh)</p><p>Start bit </p><p>Stop bit (bit 1).</p><p>(Asynchronous transmission)</p><p>9/16/2013 - 14</p></li><li><p>(Asynchronous transmission)</p><p>9/16/2013 - 15</p></li><li><p>Nguyn l :</p><p>) </p><p>(Asynchronous transmission)</p><p>9/16/2013 - 16</p></li><li><p>9/16/2013 - 17</p></li><li><p>Truyen bat ong bo</p><p>(Asynchronous transmission)</p><p>9/16/2013 - 18</p><p>chnh xc</p></li><li><p>(Asynchronous transmission)</p><p>9/16/2013 19</p><p>msb P</p><p>Start bit - 1bit. Stop bits - 1,1.5,2 bit. Data bits: 5,6,7,8.</p><p>Parity :</p></li><li><p>(Asynchronous transmission)</p><p>start, data, parity &amp; stop </p><p>bits).</p><p>9/16/2013 - 20</p></li><li><p>(Asynchronous transmission)</p><p>:</p><p>Stuffing).</p><p>9/16/2013 - 21</p></li><li><p>(Asynchronous transmission)</p><p>9/16/2013 - 22</p></li><li><p>:V 1 k m ha m ASCII 8 bit, 1bit start v 2 bit stop</p><p>thm parity th</p><p>: k ra</p><p>1200bps. Th l</p><p>1200x0.727= 872bps </p><p>(Asynchronous transmission)</p><p>' 80.727 72.7%</p><p> ' ` 8 1 2</p><p>S bt thng tin</p><p>T ng s bt truy n</p><p>9/16/2013 - 23</p></li><li><p>: TSLDLE</p><p>1200bps. </p><p>a.</p><p>b.</p><p>c.</p><p>khc).</p><p>(Asynchronous transmission)</p><p>9/16/2013 - 24</p></li><li><p>(Synchronous transmission)</p><p>khng c Start Bit v Stop bit.</p><p>9/16/2013 - 25</p></li><li><p>(Synchronous transmission)</p><p>9/16/2013 - 26</p></li><li><p>Encoder. </p><p>(Synchronous transmission)</p><p>9/16/2013 - 27</p></li><li><p>(Synchronous transmission)</p><p>9/16/2013 - 28</p></li><li><p>Digital Phase-lock-loop (DPLL): </p><p>m ho </p><p>1 0 hay 0 1). </p><p>4B3T, 2B1Q</p><p>(Synchronous transmission)</p><p>9/16/2013 - 29</p></li><li><p>(Synchronous transmission)</p><p>9/16/2013 - 30</p></li><li><p>N=32 </p><p>clock. </p><p>(Synchronous transmission)</p><p>9/16/2013 - 31</p></li><li><p>Clock</p><p>hnh 3.3.3 d). </p><p>(Synchronous transmission)</p><p>9/16/2013 - 32</p></li><li><p>Truyen ong bo</p><p>(Synchronous transmission)</p><p>9/16/2013 - 33</p></li><li><p>9/16/2013 - 34</p><p>V tr cac </p><p>chuyen tiep</p><p>Luong bit thu </p><p>c, RxD</p><p>32 x CLK</p><p>Xung lay mau </p><p>tn hieu, RxC</p><p>32 chu ky 32 chu ky</p><p>Trng hp ly tng.</p></li><li><p>9/16/2013 - 35</p><p>V tr cac </p><p>chuyen tiep</p><p>Luong bit thu </p><p>c, RxD</p><p>32 x CLK</p><p>Xung lay mau </p><p>tn hieu, RxC</p><p>32 chu ky 32 chu ky</p><p>Trng hp ieu chnh pha (DPLL).</p><p>A B C D E</p><p>10 4 4 4 10</p><p>32+1 chu ky32+2 chu ky32-1 chu ky32-2 chu ky</p></li><li><p>B, C, D, E (hnh 3.3.3 d). </p><p>32 2 = 30 clock.</p><p>E, th </p><p>32+2 =34 clock. </p><p>(Synchronous transmission)</p><p>9/16/2013 - 36</p></li><li><p>-</p><p>).</p><p>(Synchronous transmission)</p><p>9/16/2013 - 37</p></li><li><p>2</p><p>(Synchronous transmission)</p><p>9/16/2013 - 38</p></li><li><p>Hybrid.</p><p>(Synchronous transmission)</p><p>9/16/2013 - 39</p></li><li><p>9/16/2013 - 40</p></li><li><p>(Synchronous transmission)</p><p>Character-</p><p>(control characters) </p><p>SYN</p><p>9/16/2013 - 41</p></li><li><p>(SYN)</p><p>(Synchronous transmission)</p><p>9/16/2013 - 42</p></li><li><p>Truyen ong bo</p><p>(Synchronous transmission)</p><p>9/16/2013 - 43</p></li></ul>