Mirafra Technologies Design & Verification Engineer Interview Questions and Answers

Q1. 1) Explain flipflops 2) UVM Architecture 3)constraints
Ans. 
Flip-flops are sequential logic circuits used to store and manipulate binary data.
• Flip-flops are basic building blocks of digital circuits.

• They can store a single bit of information, either 0 or 1.

• Flip-flops have two stable states: set and reset.

• They are used to store and transfer data in sequential circuits.

• Examples of flip-flops include D flip-flop, JK flip-flop, and T flip-flop.
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Q1. And gate code in behavioral
Ans. 
Implementing an AND gate in behavioral code
• Use if statements to check if both inputs are high

• Assign the output to high if both inputs are high

• Use Verilog or VHDL syntax depending on the language being used
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Q2. Difference between Ff & latch
Ans. 
FF is edge-triggered, stores data on clock edge. Latch is level-sensitive, stores data as long as enable signal is active.
• FF stores data on clock edge, latch stores data as long as enable signal is active

• FF has two stable states (0 or 1), latch has one stable state (depends on enable signal)

• FF is used for sequential circuits, latch is used for level-sensitive circuits

• Example: D flip-flop (FF) vs SR latch
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