Home > Terms > English, UK (UE) > Aliasing

Aliasing

There are a number of different kinds of aliasing that can occur in BIST engines. The most commonly discussed type of aliasing occurs when two faults have a cancelling effect in the signature register. In other words, two wrongs appear to make a right. Two other forms of aliasing are zeroing and overcounting the LFSR. Zeroing refers to the occurrence of a zero in the LFSR that can have a reset-like effect on the LFSR and 'erase' the history of the previous tests. Overcounting occurs when a value or sequence in the LFSR occurs more than once in a test, typically due to a roll-over (e.g. 1 + 2n cycles of an n-bit counter will guarantee that at least one value will be repeated). Overcounting can generate a similar test history 'erasing' phenomenon.

This is auto-generated content. You can help to improve it.
0
Collect to Blossary

Member comments

You have to log in to post to discussions.

Terms in the News

Featured Terms

Harry8L
  • 0

    Terms

  • 0

    Blossaries

  • 1

    Followers

Industry/Domain: Medical Category: Gastroenterology

Hemochromatosis

A disease that occurs when the body absorbs too much iron or receives many blood transfusions. The body stores the excess iron in the liver, pancreas, ...

Contributor

Featured blossaries

Sheryl Sandberg

Category: Business   4 1 Terms

Red Hot Chili Peppers Album

Category: Entertainment   1 10 Terms