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Chapter 9 Data Communication Interfaces

Elsevier Science & Technology
DOI: 10.1016/s0922-3487(08)70063-7
  • Communication
  • Computer Science


Publisher Summary A computer system's busses, address, data, control, are made available to a peripheral I/0 device by a data communication interface. Digital information is transmitted and received along the line(s) comprising the interface in a variety of different formats and protocols depending on the particular application and/or peripheral device. Some of the more popular types are discusses in the chapter: the Centronics parallel, Recommended Standard (RS)-232C serial, and the IEEE-488 parallel interfaces. A few points is made about other bus systems, which may be more appropriately regarded as “localized” interfaces and referred to as backplane busses. The RS-232C Interface is used for the serial transmission of data. This simply means that each data bit is transmitted one after the other in single-step fashion. Signal timing is precise and the transmission speed is usually given in bits per second sometimes called the “baud-rate.”

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