9 ANOTHER QUESTION STRAIGHT OUT OF THE BOOK (THESE ARE TOO EASY…)

9.9 Another question straight out of the book (these are too easy…). Section 9.6.2.

Basically, a scan design is implemented by turning all D flip-flops into scannable D

flip-flops. This usually involves adding a two input multiplexer to the existing D

flip-flop designs that are used (this isn’t done manually, but using library elements).

Once scan flip flops are inserted, the task remains to divide the flip-flops into scan

chains.