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 CHAPTER 19 Foundations of Synchronous Circuits

In this chapter, we deal with synchronous circuits. We begin with a formal definition that builds on the definition of combinational circuits. This definition is syntactic, and we must prove that a circuit that satisfies this definition does what we expect it to do. But how do we define what it should do? Namely, how do we specify functionality, and how do we specify timing?

We begin with a simple form of synchronous circuits that we call the canonic form. In the canonic form, it is clear what the flip-flops do, where the output is computed, and where we compute the inputs of the flip-flops. We begin by analyzing the timing of a synchronous circuit in canonic form. We show that stability ...

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