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Design a memory tester that verifies the correct operation of a 6116 static RAM (Figure 8-15).The tester should store a checkerboard pattern (alternating 0's and 1's in the even addresses, and alternating 1's and 0's in the odd addresses) in all memory locations and then read it back. The tester should then repeat the test using the reverse pattern.
(a) Draw a block diagram of the memory tester. Show and explain all control signals.
(b) Draw an SM chart or state graph for the control unit. Use a simple RAM model and disregard timing.
(c) Write VHDL code for the tester and use a test bench to verify its operation.
A proton moves around a circular path ( radius = 2.0 mm ) in a uniform .25-T magnetic field. what total distance does this proton travel during a 1.0-s time interval
The dielectric constant of one mediumis 1.25 if the permeability of each medium is the same as that offree space and the reflection coefficient is 0.25 determine thedielectric constant of the other medium
Determine the range of H0, in oersteds, where an extraordinary wave (polarized in x, propagating in z) will be cut off. The frequency is 4 GHz.
If the receiver has a phase noise of -100 dBc/Hz, what is the highest blocker level that allows a signal-to-noise ratio of 30 dB? Neglect other sources of noise.
A sequential circuit has one flip-flop Q, two inputs X and Y, andone output S. The circuit consists of a D flip-flop with S asits output and logic implementing the function D = X (+) Y (+) S with D as the input to the D flip flop.
Create a Mealy FSM with an input A and an output Z. If 10101 shows up on A, then in the same cycle 1 should show up on Z, else Z is 0. Do the entire FSM design following all steps: State diagram, state tables, all equations, and circuit.
Consider the signal x (t) = 10+ 20 cos (100*2 t + 4) + 10 cos (250*2 t ) A. Using Euler's relation, the signal x(t) defined by the above equation can be expressed as a sum of complex exponentials in the form X(t) = x0 + Re{k=1N Xkejk2fot}
If our connection to the Internet is via a 56-kbps modem, how long will we need to wait before the song can be started (downloading time)?
A motor is connected to a 120 V rms, 60 Hz line. The motor is rated at 2 kVA and operates with a power factor of 0.8.
Create a state transition diagram for a simple state machine to detect a positive pulse. You choose either a Moore or Mealy machine. Write a Verilog HDL module for your state machine.
A silicon abrupt junction in thermal equilibrium at T=300 K is doped such that Ec-Ef=0.21 eV in the n region and Ef-Ev=0.18eV in the p region. (a) draw the energy band diagram of the pn junction.
For a mixture of ethane 60%, acetylene 20%, and benzene 20% total mass of 250 kg is loaded into a reactor obeying the Carnot cycle, we want to know which produces more work when reacted with 25% fuel, 60% O2, 15% CO2 for 30 cycles.
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