IEEE 1284

(redirected from 1284)
Also found in: Wikipedia.

IEEE 1284

An IEEE standard for an enhanced parallel interface (parallel port) for personal computers, superseding the Centronics interface. Introduced in 1994, IEEE 1284 can send addresses, allowing individual components in a multifunction device (printer, scanner, fax, etc.) to be addressed independently. Unlike the Centronics interface, the specifications of the cable are also defined in IEEE 1284, providing a cable length up to 32 feet. A legacy interface today, IEEE 1284 has been superseded by USB and network connections. See Centronics interface, DOT4 and USB.

Five Modes of Operation
The mode chosen by the software driver is based on the connected device. 1-Compatibility mode supports the Centronics interface at 150 KB/sec. 2-Nibble mode supports Bi-tronics; HP's parallel port variation. 3-Byte mode supports IBM PS/2 personal computers. 4-Enhanced Parallel Port (EPP) provides bidirectional speeds up to 1.5 MB/sec. 5-Enhanced Capability Port (ECP) is similar to EPP but can transfer 2.5 MB/sec using direct memory access (see DMA).


IEEE 1284 Printer Cable
Using the same Micro-Ribbon connectors as the Centronics interface, IEEE 1284 specifies higher-quality cables up to 32 feet long.
References in periodicals archive ?
As chairperson of the Senate Committee on Public Services, Poe sponsored Senate Bill 1284, or the proposed Traffic and Congestion Act of 2016, which seeks to address transportation and congestion problems in the country by granting the President special emergency powers.
The money (PS502.67) will be spent on new polytunnels and seed beds at Lower Treginnis, a farmstead near St David's that dates back to 1284.
Which was the first Cambridge college, founded in 1284? 10.
1284: According to legend, the Pied Piper reappeared in the German town of Hamelin.
Which college founded in 1284, is the oldest at Cambridge University?
The events of which German legend allegedly took place in 1284? 8.
With my 105-mm scope at 28x, the emission nebula 1C 1284 is easily visible around the 7.6-magnitude star HD 167815 (SAO 161273) and covers about IT x 7' of sky.
Booth 1284. RheoSense's pVISC is a portable instrument for testing and evaluating materials such as inks, biologics, chemicals, oils and other liquids.
Johann Gutenberg's famous Bible - which appeared in 1455 in two volumes - had 1284 pages and took three years of constant printing to complete.
To our knowledge, though, Garry has never treated his readers to a detailed treatise on the 1284 Statute of Rhuddlan, which made Monmouthshire part of Wales.