VHDL Mock Test 4 - Sanfoundry

10%

Question 1 of 10

1. Which of the following statements can be seen as sequential equivalent to the selected concurrent assignment?

WHEN

IF ELSE

CASE

WAIT

Question 1 of 10

Question 2 of 10

2. Which of the following statement can’t be used inside a process?

Variable declaration

IF ELSE

WAIT

PORT MAP

Question 2 of 10

Question 3 of 10

3. A postponed process runs when ___________

First of all processes

Concurrently with all other processes

All the other processes have completed

After completion of one particular process

Question 3 of 10

Question 4 of 10

4. Inertial delay in Signal assignment is useful to ___________

Ignore input glitches

No use

Accumulate delay

Specify wire delay

Question 4 of 10

Question 5 of 10

5. Which of the following is correct syntax for process declaration?

     {Label :} PROCESS {sensitivity_list}
     {process_declaration_part}
     BEGIN
     sequential_statements;
     END PROCESS {Label};

     {Label :} PROCESS
     {process_declaration_part};
      sensitivity_list;
     BEGIN
     sequential_statements;
     END PROCESS {Label};

     {Label :} PROCESS
     {process_declaration_part}
     BEGIN
     sensitivity_list;
     sequential_statements;
     END PROCESS;

     PROCESS {sensitivity_list}
     {process_declaration_part}
     BEGIN
     sequential_statements;
     END PROCESS {Label};

Question 5 of 10

Question 6 of 10

6. In case any of the conditions is not covered by ‘cases’ in the case statement, which of the following keyword can be used to cover all those conditions?

OTHERS

ELSIF

ELSE

REMAINING

Question 6 of 10

Question 7 of 10

7. For a signal used in sequential assignment, it can have _______ driver(s).

Question 7 of 10

Question 8 of 10

8. The driver(s) of signal y is _________

PROCESS ()
BEGIN
y <= ‘1’;
y <= x;
y <= z;
END PROCESS;

x and z

Question 8 of 10

Question 9 of 10

9. If no signal in the sensitivity list is changed, then how many times the process will be executed?

Question 9 of 10

Question 10 of 10

10. It is possible to use sensitivity list and wait statements in the same process.

True

False

Question 10 of 10