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Computer hardware that translates data between

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computer hardware that translates data between parallel and serial forms. circle6 An example of UART communication is RS-232. circle6 UARTs are commonly included in microcontrollers. circle6 A UART is usually used for serial communications over a computer or peripheral device serial port. circle6 Serial ports are used as a control console for diagnostics & configuration. circle6 Many modern personal computers do not have a serial port since this legacy port has been superseded by USB now. Reference : Universal asynchronous receiver/transmitter. (2010, July 28). In Wikipedia, The Free Encyclopedia. Retrieved 15:14, August 1, 2010, from http://en.wikipedia.org/w/index.php?title=Universal_asynchronous_receiver/transmitter&oldid=375909355
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UART – Features circle6 The Universal Asynchronous Receiver/Transmitter (UART) controller is the key component of the serial communications subsystem of a computer. circle6 The UART takes bytes of data and transmits the individual bits in a sequential fashion. At the destination, a second UART re-assembles the bits into complete bytes. circle6 Serial transmission of digital information (bits) through a single wire or other medium is much more cost effective than parallel transmission through multiple wires. circle6 The UART usually does not directly generate or receive the external signals used between different items of equipment. Typically, separate interface devices are used to convert the logic level signals of the UART to and from the external signaling levels. Reference : Universal asynchronous receiver/transmitter. (2010, July 28). In Wikipedia, The Free Encyclopedia. Retrieved 15:14, August 1, 2010, from http://en.wikipedia.org/w/index.php?title=Universal_asynchronous_receiver/transmitter&oldid=375909355
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RS-232 – Example Connection
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RS-232 – Signal Lines Reference : http://en.wikipedia.org/w/index.php?title=Serial_port&oldid=375074019
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RS-232 – Bus Speeds & Signal Levels circle6 The typical operational speeds of the RS-232 bus are: 9600 bits/sec 19200 bits/sec 38400 bits/sec 57600 bits/sec 115200 bits/sec Reference : RS-232. (2010, July 30). In Wikipedia, The Free Encyclopedia. Retrieved 17:56, August 1, 2010, from http://en.wikipedia.org/w/index.php?title=RS-232&oldid=376240910
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RS-232 – Null Modem circle6 Null modem is a communication method to connect two DTEs directly using an RS-232 serial cable. circle6 The RS-232 standard is asymmetrical as to the definitions of the two ends of the communications link so it assumes that one end is a DTE and the other is a DCE e.g. a modem. Reference : Null modem. (2010, July 16). In Wikipedia, The Free Encyclopedia. Retrieved 18:01, August 1, 2010, from http://en.wikipedia.org/w/index.php?title=Null_modem&oldid=373861640
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RS-232 – Null Modem Connection Reference : Null modem. (2010, July 16). In Wikipedia, The Free Encyclopedia. Retrieved 18:01, August 1, 2010, from http://en.wikipedia.org/w/index.php?title=Null_modem&oldid=373861640
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