we will introduce a design methodology for describing and designing large, complex digital systems. The various mod ules are interco nnected with datapaths and control signals to fonn a d igital sys tem. multiplexers, arith-me tic elements, and control logic. The modules are co nstructe d fro m such dig ita l devices as registers. The sys tem is part itioned into modul ar subsys tems. To overcome this difficulty, digital systems are designed via a modular approach. To specify a large digital system with a state table is very difficult, because the number of states would be enormous. Sequ ential circuits can bespecified by means of state tables as shown in Chapter 5.
A digital system is a seq uential logic system co nstruc ted with flip-flops and gates.
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