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Control and Observation points

Explain some of the examples of good candidates for control and observation  points.

E

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Examples of good candidates for control points are as follows:

a) Control lines to tri state devices

b) Data select lines to multiplexers and de-multiplexers

c) Enable read/write inputs to the memory devices

d) Enable/hold inputs to the microprocessors.

Some of the examples of good candidates for the observation points are as follows:

a) Global feedback paths.

b) Redundant signal lines.

c) Stem lines associated with signals having high fan-outs.

d) Address, control, and data buses.

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