Question

2. (25 pts) Refer to the sequential circuit given below. Think about how you design a sequential circuit. Analyze the circuit by reversing the design process. - W Clock (1) Write down the excitation equations and output equation. (2) Write down the state assigned table. There should be four states: 00, 01, 10, and 11. (3) Write down the state table. (4) Draw the state diagram. (5) Describe the circuit behavior, i.e., the operation of the circuit.

Answer 1

Given cireuit, Cik ā . ckt aut R from sequential circut &z=9,400 Z = 0, Dp= (Qo+91).w. Di&Do are excitation eqaations, . z output equation. State a table This stable represets the next state Values & presat state Vales. for D-filip flop nex state is Qn41 = D = 0 = Do ] LOL = DI | CamScanner Ics Scanned with

State assign . There table are States this are four states. Assign to 00, 01, 10, 11 A B CD. 00-A State table lor=g, w+ Tow/ a5 208 wt| 2 = 0, 900 / di dol w z aut I got l z ooo Toot oo l I l I l 0 oilo ó lo lo. 017 State doagram Ď State diagram . (5) It is a moore circuit, Outpat doesn't depends on it for w=1; 90=1; &, swing in b/w of 2 dies at produces frodency wave 94 We can take di as forgency deviction CS Scanned with CamScanner