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scan design

<electronics> (Or "Scan-In, Scan-Out") A electronic circuit design technique which aims to increase the controllability and observability of a digital logic circuit by incorporating special "scan registers" into the circuit so that they form a scan path.

Some of the more common types of scan design include the multiplexed register designs and level-sensitive scan design (LSSD) used extensively by IBM. Boundary scan can be used alone or in combination with either of the above techniques.

["Digital Systems Testing and Testable Design" by Abramovici, Breuer, and Friedman, ISBN 0-7167-8179-4].

["Design of Testable Logic Circuits" by R.G. Bennetts, (Brunel/Southhampton Universities), ISBN 0-201-14403-4].

(1995-02-23)


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