![]() ![]() In general form the Mealy circuit can be represented with its block schematic as shown in Fig.3.40. The false outputs can be eliminated by allowing input to change only at the active transition of the clock (in our example HIGH-to-LOW). Due to this, if the input variations are not synchronized with the clock, the derived output will also not be synchronized with the clock and we get false output (as it is a synchronous sequential circuits). However, they can affect the output of the circuit. a feedback path the state of the sequential circuit (inputs. 3.39, we can easily realize that, changes in the input within the clock pulses can not affect the state of the flip-flop. Q1 For the following clocked sequential circuit with one input (X) and one output (Z). 3.39, the output of the circuit is derived from the combination of present state of flip-flops and input (s) of the circuit. ECE124 Digital Circuits and Systems, Final Review, Spring 2011. When the output of the sequential circuit depends on both the present state of flip-flop(s) and on the input(s), the sequential circuit is referred to as Mealy Circuit. it varies in synchronism with the clock input. View Analysis of Clocked Sequential Circuits.pdf from CIS 2202 at University of San Carlos - Talamban Campus. We demonstrate the functional analysis of synchronous sequential circuits by means of the multiplexer loop, extended with a D-flipflop in the feedback loop. In the Moore Circuit, as output depends only on present state of flip-flops, it appears only after the clock pulse is applied, i.e. ![]()
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