External Input X 0 0 X 0 0 1 1 1 1 Present State Q1 0 0 Clk 1 1 0 1 Built Circuit In Figure 2 In Deeds Please Complet 1 (155.72 KiB) Viewed 38 times
External Input X 0 0 X 0 0 1 1 1 1 Present State Q1 0 0 CLK- 1 1 0 1) Built circuit in Figure 2 in DEEDS. Please complete the circuit until it can work as a counter. 0 2) Investigate the behaviour of the counter by observing the next state of the counter for all combination of Present State and X values. Complete the NextState table of the counter in Table 3. 1 1 QO 0 1 0 1 FFO 0 1 OPC 0 1 K Q Figure 2 FFI Table 3 4₁ K₁ Q₁ Q1+ Next State N QO+ External Output Z
3) Produce the equations for JO, KO and J1, K1. 4) Fill out the Transition and Next State Table in Figure 4 based on your equations in Q3. External Input X 0 0 0 0 1 1 1 1 Present State 0 0 1 1 0 0 1 1 0 1 0 1 0 Next State 1 0 1 Table 4 Q0Q1+Q0+ J1 KI JO ΚΟ JK FF Transition 5) Your Table 3 and Table 4 should produce the same answer. If they are not, please check your circuit or your equations. External Output Z 6) By referring to the Next-State in Table 3, sketch the state diagram of the counter. Please indicate input/output for each transition. 8) What is the function of switch X in the circuit? 7) What is the main indicator to decide that the counter is a synchronous counter? 10) List all the characteristics of this counter. 9) What were the missing wires that were not drawn in the original Figure 2? What are their functions?
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