Stage and show lighting Lighting is important in theatre and shows. Lighting allows us to see the performers. Lighting provides a tool for setting moods and tones of scenes on stage. Different type of performanced have different lighting needs.
What are the features of VHDL? What are the different types of modeling in VHDL? What is port mapping and how is it done? What is the use of foreign attribute in VHDL? Can any design be implemented using any of the design models in VHDL?
Process is a concurrent statement.
What is the use of Assertion statement? What do you mean by generic mapping and what is the use of it? What is the difference between a procedure and a function?
Differentiate between operators overloading and function overloading?
|VHDL samples||Depending upon how close the inputs switch, the output may be a runt pulse which may cause metastability in downstream circuits but this circuit will behave cleanly. The general operating theory of the circuit is nice, but implementing it properly and reliably would be problematic.|
|JK Flip-Flop||A JK flip-flop has two inputs similar to that of RS flip-flop. We can say JK flip-flop is a refinement of RS flip-flop.|
Difference between exit and next statements? What is an attribute?
Name some of the predefined attributes? Implement a full adder using two half adders? What is the difference between inertial delay and transport delay? How do you detect if two 8-bit signals are same? What are the two key concepts in the simulation semantics of VHDL and how does each concept help VHDL simulation produce waveforms that match the behaviour that we expect?
For a combinational process in VHDL, the sensitivity list should contain all of the signals that are read in the process. Please give a detailed reason and an exception to this statement. For a combinational process, every signal that is assigned to, must be assigned to in every branch of If-Then-Else statement and Case statement.
Each signal should be assigned to in only one process.
Separate unrelated signals into different processes. Give atleast two reasons! In a state-machine, illegal and unreachable states should transition to the reset state.
If your state-machine has less than 16 states, use a one-hot encoding. Include a reset signal in all clocked circuits. For implicit state-machines, check for reset after every wait statement. Connect reset to the important control signals in the design, such as the state signal.
Do-not reset every flip-flop. Discuss the subtypes with examples as are used in VHDL.short production runs, or where the contents of the ROM • RAM (random access memory) – read and write to any location given a valid address – Historically term had more meaning when tape drives and – Still used in older machines – Instead of output tri-state being controlled by CAS line.
The state of all elements of a synchronous circuit changes only by an application of a distributed clock signal. So, this makes the state of a synchronous circuit predictable.
Also, synchronous clock signals are less susceptible to noise, circuit anomalies and hence safer to design and operate.
6. Design project for example digital clock, digital event counter, timers, and various multi-vibrator Circuits, small processor, ports or scrolling display. A student and faculty may choose any other such problem which includes the concept used in the course.
Major Equipments: 1. Pattern Generators 2. Logic State Analyzers 3. Represent the states in a state machine with the parameter data types in Verilog and Verilog, and use the parameters to make state assignments. This parameter implementation makes the state machine easier to read and reduces the risk of errors during coding.
Stable state,Unstable state,Cycles,Race Analyze the Boolean expression, K- Map, transition and state table and primitive flow table of the following asynchronous sequential circuits. On the contrary, the reset state machine needs a stabilized clock to operate correctly. capacitor C. Note that an internal pull-down device on the RPD pin is turned on when the ns clock cycles Short synchronous reset.