Atria Logic Interview Questions and Answers

Q1. Rtl code for fifo
Ans. 
RTL code for FIFO is a hardware description language code that implements a First-In-First-Out buffer.
• Use Verilog or VHDL to write RTL code for FIFO

• Define input and output ports for data and control signals

• Implement logic for enqueue and dequeue operations

• Use registers or memory elements to store data temporarily
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Q2. Task to write 50 transactions to a memory
Ans. 
Writing 50 transactions to a memory task
• Use a loop to iterate 50 times and write each transaction to the memory

• Ensure each transaction is unique and properly formatted

• Verify the transactions after writing them to the memory
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Q1. Difference between mealy and moore
Ans. 
Mealy machines have outputs that depend on both present state and input, while Moore machines have outputs that depend only on present state.
• Mealy machines have outputs that change asynchronously with input changes

• Moore machines have outputs that change synchronously with state changes

• Mealy machines have fewer states compared to Moore machines

• Example: Traffic light controller is a Mealy machine as the output changes ba...read more
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Q2. Uvm sequencer hand shake
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Q1. Questions on digital electronics
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Q2. Verilog and system verilog
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Q3. Universal Verification Methodology
Ans. 
Universal Verification Methodology (UVM) is a standardized methodology for verifying digital designs.
• UVM is based on SystemVerilog and provides a standardized way to create testbenches for verifying digital designs.

• It helps in improving verification productivity, reusability, and scalability.

• UVM consists of a set of classes and macros that help in creating modular and reusable testbenches.

• It supports constrained random...read more
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Q1. Coding in verilog
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Verilog is a hardware description language used for designing digital circuits.
• Verilog is used to describe the behavior of electronic systems.

• It is commonly used in the design and verification of digital circuits.

• Verilog code consists of modules, which can be instantiated and interconnected to create complex systems.

• Simulation tools like ModelSim can be used to test Verilog code before implementation on hardware.
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Q2. System verilog and UVM
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Q1. Write a 8X1 mux using if else with clock and reset
Ans. 
Implementing an 8X1 mux using if else statements with clock and reset
• Declare input signals, output signal, clock and reset signals

• Use if else statements to select the output based on the select lines

• Ensure proper handling of clock and reset signals

• Example: if(sel == 3) output = in3;
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Q1. SV, UVM and Communication
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Basic SV and UVM object oriented and some construction

Q1. Communication and presence of mind
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