Skip to main content

shift counter

shift counter A synchronous counter that consists of clocked flip-flops arranged as a shift register. Data is propagated from left to right (or from right to left) between the flip-flops by the application of a clock or count pulse. Counting is achieved by setting the contents of the shift register to logic 0 (or logic 1) and loading the leftmost (rightmost) flip-flop with a logic 1 (logic 0). An m-bit counter, which has m flip-flops, will then require m clock pulses to shift this 1 (or 0) to the rightmost (leftmost) flip-flop. The position in the register of the 1 (or 0) thus acts as a count of the number of pulses received since application of the load.

The counter may be made to count continuously by arranging that the output of the rightmost (leftmost) flip-flop sets the input of the leftmost (rightmost) flip-flop. The counter is then known as a ring counter.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"shift counter." A Dictionary of Computing. . Encyclopedia.com. 13 Dec. 2018 <https://www.encyclopedia.com>.

"shift counter." A Dictionary of Computing. . Encyclopedia.com. (December 13, 2018). https://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/shift-counter

"shift counter." A Dictionary of Computing. . Retrieved December 13, 2018 from Encyclopedia.com: https://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/shift-counter

Learn more about citation styles

Citation styles

Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

http://www.mla.org/style

The Chicago Manual of Style

http://www.chicagomanualofstyle.org/tools_citationguide.html

American Psychological Association

http://apastyle.apa.org/

Notes:
  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.