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Digital Electronics - Digital System Projects Using HDL

Exercise : Digital System Projects Using HDL - General Questions
26.
In the frequency counter, what is the function of the Schmitt trigger circuit?
To reduce input noise
To condition the input signal
To convert non-square waveforms
To provide a usable signal to the display unit
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
List three basic blocks in the digital clock project.
MOD-60, MOD-12 counters
MOD-5, MOD-10, MOD-12 counters
MOD-60, MOD-10 counters
MOD-6, MOD-12, and MOD-10 counters
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
When designing an HDL digital system, which is the worst mistake one can make?
Concluding that a fundamental block works perfectly
Failing to provide proper documentation
Adding blocks of code prior to testing them
Overlooking a possible VARIABLE
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
In the keypad application, just after the 4 ms mark the simulation imitates the release of the key by changing the column value back to F hex, which causes the d output to go into its Hi-Z state. On the next rising clock edge, what happens to dav?
It goes HIGH.
It goes LOW.
It goes to Hi-Z.
It goes to 1111H.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
For the frequency counter, which is not a control signal from the control and timing block?
Clear
Enable
Reset
Store
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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