| 单词 | EBCDIC (Extended Binary Coded Decimal Interchange Code) |
| 释义 | EBCDIC (Extended Binary Coded Decimal Interchange Code) Table E-2: EBCDIC Code — 00–FF Hexadecimal Notation (continued) Dec Hex Code Dec Hex Code Dec Hex Code Dec Hex Code 144 90 176 B0 208 D0 } 240 F0 0 145 91 j 177 B1 209 D1 J 241 F1 1 146 92 k 178 B2 210 D2 K 242 F2 2 147 93 l 179 B3 211 D3 L 243 F3 3 148 94 m 180 B4 212 D4 M 244 F4 4 149 95 n 181 B5 213 D5 N 245 F5 5 150 96 o 182 B6 214 D6 O 246 F6 6 151 97 p 183 B7 215 D7 P 247 F7 7 152 98 q 184 B8 216 D8 Q 248 F8 8 153 99 r 185 B9 217 D9 R 249 F9 9 154 9A 186 BA 218 DA 250 FA 155 9B 187 BB 219 DB 251 FB 156 9C 188 BC 220 DC 252 FC 157 9D 189 BD 221 DD 253 FD 158 9E 190 BE 222 DE 254 FE 159 9F 191 BF 223 DF 255 FF Although the full explanations of all control codes are outside the scope of this book, the following is a representative list: • NUL (NULl): A transmission control character used to serve a media-fill or time-fill requirement, i.e., a stuff character or padding character. • SOH (Start Of Header): A transmission-control character indicating the start of a message heading. • STX (Start of TeXt): A transmission-control character to start the reading, transmission, reception, or recording of text. • ETX (End of TeXt): A transmission-control character to terminate the reading, transmission, reception, or recording of text. • EOT (End Of Transmission): A transmission-control character to terminate a transmission that may have included one or more texts or messages. • ENQ (ENQuiry): A transmission-control character used to request a response from a station to which a connection has been established.The request may be for the station identification, type of equipment, and station status. • NAK (Negative AcKnowledgement): A transmission-control character sent by the receiving device to the transmitting device to indicate that a received block of data contained one or more errors. A NAK will trigger the transmitting device to retransmit that errored block. • ACK (ACKnowledgement): A transmission-control character sent by the receiving device to the transmitting device to indicate that a received block of data contained no errors. 74570c05.qxd 9/11/07 12:20 PM Page 158 |
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