Monday, 12 November 2018

RC Circuit interview question and answers

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We have created a new course to help candidates crack VLSI job interviews. This course covers all the possible question that can appear in RC circuits. 

RC Circuits are complex to understand. It usually takes lots of effort to get down to all the basics to solve problems on RC.

Even though , there are just these two components, Yes, just Two, R and C. There can be a plethora of questions which can be asked.

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Wednesday, 22 August 2018

Koggetsone adder : Fault Tolerant

   


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The Kogge-Stone adder is a parallel prefix adder. It will have a generate and the propagate signals. Area and power are compromised at the cost of fast computation. Logic depth is reduced in this module. It overcomes the disadvantages of a carry propagate delay in regular ripple carry adder.  

 

 

This operator works on the generate and propagate pairs as defined by,
(gL, pL) (gR, pR) = (gL + pL gR, pL pR)

 

An 8-bit Kogge-Stone adder : 

8 :Generate and propagate (GP) blocks

8: Black cells (BC) blocks

8: Gray cell (GC) blocks

9:Sum blocks.  

Reader can refer to any standard papers for the top module design

 

Verilog Code : 

 




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