Embedded Systems Interview Questions
Questions Answers Views Company eMail

Difference between 80286 and 80287

Mascot,

2 8066

In a processor these are 120 instructions . Bits needed to impliment this instructions [a] 6 [b] 7 [c] 10 [d] none

Wipro,

2 8390

In 8085 microprocessor READY signal does.which of the following is incorrect statements [a]It is input to the microprocessor [b] It sequences the instructions

Wipro,

2 7955




Return address will be returned by function to

Wipro,

2 4472

load a mul a store t1 load b mul b store t2 mul t2 add t1 then the content in accumulator is

Wipro,

2 5891

In 8085 microprocessor READY signal does.which of the following is incorrect statements [a]It is input to the microprocessor [b] It sequences the instructions

Wipro,

4 7356

what is conductance and valence band?

1 4050

What is Fermi level?

5 5721

How does Vbe and Ic change with temperature?

Qualcomm,

2179

If the substrate doping concentration increase, or temperature increases, how will Vt change? it increase or decrease?

1 2020

what is Channel length modulation?

Intel,

2 2744

what is the doping?

5 4108

How does a pn junction works?

Wipro,

2 4371

What is the depletion region?

1 3547

Tell me the parameters as many as possible you know that used to character an amplifier?

1 1282







Un-Answered Questions { Embedded Systems }

If not into production, how far did you follow the design and why did not you see it into production?

1030


Explain the Charge Sharing problem while sampling data from a Bus?

1170


Are you familiar with the term MESI?

1403


What work have you done on full chip Clock and Power distribution? What process technology and budgets were used?

2081


What is Noise Margin? Explain the procedure to determine Noise Margin?

1274






How do you size NMOS and PMOS transistors to increase the threshold voltage?

1708


How to improve these parameters? (Cascode topology, use long channel transistors)

1065


What types of I/O have you designed? What were their size? Speed? Configuration? Voltage requirements?

1336


What types of CMOS memories have you designed? What were their size? Speed?

1902


What happens if we use an Inverter instead of the Differential Sense Amplifier?

1892


Explain CMOS Inverter transfer characteristics?

2642


What transistor level design tools are you proficient with? What types of designs were they used on?

3763


How can you model a SRAM at RTL Level?

4238


Help with VHDL programming. Write a VHDL code for a D-Latch with clear input ?? (Hint: Set up a “Process” with appropriate sensitivity list to get the desired D-Latch with Clr working.) Inputs AND OUTPUTS: entity Lab4b is Port ( Clr, Clk, D : in STD_LOGIC; Q : out STD_LOGIC); end Lab4b;

364


Write a VLSI program that implements a toll booth controller?

2836