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| | Asynchronous start-stop - Open Encyclopedia |
 | | Asynchronous start-stop signalling was widely used for dial-up modem access to time-sharing computers and BBS systems. | | | Asynchronous start-stop is still used to communicate with modems for many dial-up Internet access applications, using a framing protocol such as PPP to create packets made up out of characters. | | | The alternative to asynchronous start-stop was the use of synchronous protocols such as HDLC. |
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http://open-encyclopedia.com/8N1
(355 words)
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| | Citations: The design and implementation of an asynchronous microprocessor - Paver (ResearchIndex) |
| | The AMULET2 microprocessor was built using the micropipeline design style with four phase signalling [Furb97] However, before the advantages of asynchronous.... | | | It should also be borne in mind that current commercial memories present a synchronous interface and the asynchronous microprocessor must be able to interface to these devices at some level. | | | For the last five years the AMULET group at the University of Manchester has spent most of its energies addressing this shortfall and gaining experience of asynchronous engineering in the large. |
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http://citeseer.ist.psu.edu/context/198978/0
(355 words)
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| | NADCOMM Photo's |
| | No teleprinters were ever produced which used the Baudot code, but that is hardly surprising when one considers that the Baudot code was used in a very early synchronous system, and all teleprinters, as we now know them, operate on the start-stop (asynchronous) principle. | | | Hence the Baudot system was one of the earliest five-unit synchronous systems. | | | The manipulation of the Baudot keyboard called for a high degree of operating skill, since a definite, unvarying, rhythmic speed of signalling was necessary. |
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http://www.nadcomm.com/fiveunit/fiveunits.htm
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| | Asynchronous Logic: Background |
| | There is a world-wide resurgence of interest in asynchronous logic design techniques. | | | There are many different flavours of asynchronous logic, and they are as different from each other as they are from synchronous design. | | | The advantage of this approach over transition signalling is that the logic processing elements can be much simpler; familiar logic gates process levels whereas the circuits required to process transitions require state and are generally more complex. |
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http://www.cs.man.ac.uk/async/background/return_async.html
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| | Craig A. Finseth: Serial Speeds |
| | For asynchronous speeds at or below 600 bps and all synchronous speeds listed, this number is also the same as the baud (not "baud rate"). | | | In normal operations, the "baud rate" should therefore always be zero, thus indicating that signalling is happening at a constant speed. | | | For other speeds, the bits/second figure and the baud may or may not be the same: it depends upon the encoding used to carry the signal. |
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http://www.finseth.com/parts/serial.html
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| | X-Series: Data networks, open system communications and security |
| | Use on public data networks of Data Terminal Equipment (DTE) which is designed for interfacing to asynchronous duplex V-Series modems | | | Use on public data networks of Data Terminal Equipment (DTE) which is designed for interfacing to synchronous V-Series modems | | | Terminal and transit control signalling system for start-stop services on international circuits between anisochronous data networks |
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http://www.itu.int/ITU-T/recommendations/images/menuTreeX-en.html
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