Question

Describe SCAN path techniques used for testing of sequential circuits.

Answer 1

That's the answer:

The Scan-Path Technique The testing problems with sequential circuit can be overcome by two properties: 1.The circuit can easily be set to any desired internal state. 2.It is easy to find a sequence of input patterns such that the resulting output sequence will indicate the internal state of the circuit. In other words the circuit has a distinguishing sequence