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System Verilog Interview Questions and Answers

1] What is the Difference between Param and typedef in System Verilog ? In SystemVerilog, both param and typedef are used to define constants or custom data types, but they serve different purposes. Here is the difference between param and typedef in SystemVerilog: param: typedef: 2] What is `timescale in System Verilog? In SystemVerilog, the `timescale directive is used to specify the time […]

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What are some common scenarios in System Verilog where race conditions can occur?

In SystemVerilog, race conditions can occur in various scenarios where multiple processes or threads access and modify shared variables simultaneously. Here are some common scenarios where race conditions can occur: It is important to note that these are just a few examples of common scenarios where race conditions can occur in System Verilog. It is

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X-Propagation in VLSI

X-propagation in VLSI refers to the propagation of the ‘X’ value, which represents an unknown logic value, through different logic gates in a VLSI (Very Large Scale Integration) circuit. When a simulator is unable to determine whether a logic value should be a ‘0’ or a ‘1’, it assigns an ‘X’ value. This can lead

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What is a black-box module and why do we need them?

A black-box is a module in which only the input and output ports of module is available for the designers to connect and integrate with the other modules: The below is an example of a 2 to 1 multiplexer black-box module: /////////////—————–////////////////////module mux2_1 (input a,input b,input sel,output reg out); endmodule/////////////////————-///////////////// In the above Verilog code

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