Question

2500 Lab Laboratory Eleven Advanced SLC Design Basic 1. A code sequence detector is a SLC which identifies a specific input sequence code, similar to a digital combinational lock 2. State assignment is the process of assigning a specfic binary code to each state of a state diagram or table The complexity of a SLC drcuit can be reduaed by using a state assignment other than a counting sequence. 3. Note: This preab assignment is worth 10 points. Lab is still 10. Consider the design of a 4-state code sequence detector similar to that presented in lecture. Record the results of your work in your lab notebook 1. (Pre) Draw a block diagram for the sequence detector prescribed by the state dagram shown at right, whidh outputs Z = 1 anytime the input seven e X= 0110 is observed. In your design, indude a RESETinput for asyndhronously clearing the cirouit 1/0 2. (Pre) Draw a state table in terms of states a, b, cand d 3. (Pre) Make a state assignment for this SLC and finish the ONO design steps 3-5 of the 5-step design procedure to obtain a SLC JK F/F design (Note that state a should always be 00.) Refer to the statetable and Design#1 and Design#2 for the example 4-state sequence detector given in lecture (a similar, but not identical example) (Pre) Repeat Step 3 of the prelab but using a different state assignment for states b, cand d make two contrasting designs. (Pre) If your JK design equations of Step 4 above are about the same order of complexity as Step 3, search for an even more contrasting design implementation (either a more-or-less complex design) by repeating Step 4 of the pre-lab a second time. Simulate your best sequence detector using Logisim. Test your design with the overlapping sequence 0110110, and plot waveforms for outputs Y1, Y2 and Z 1/0 4. We are going to C0/1 5. 1/0 6. 7. Construct your sequence detector by writing Case and download your SLC to the Digilent board and verify its operation Complete a stae race for X 0110110 Y a?7?????

Answer 1

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