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Embedded Systems Interview Questions
Questions Answers Views Company eMail

For a NMOS transistor acting as a pass transistor, say the gate is connected to VDD, give the output for a square pulse input going from 0 to VDD

Infosys,

1394

Draw Vds-Ids curve for a MOSFET. Now, show how this curve changes with increasing transistor width.

Infosys,

1249

Let A & B be two inputs of the NAND gate. Say signal A arrives at the NAND gate later than signal B. To optimize delay, of the two series NMOS inputs A & B, which one would you place near the output?

Infosys,

1401

Why is digital communication better than analogue communication?

Aricent,

784

Using four cascaded counters with a total of 8 bits, how many states must be deleted to achieve a modulus of 20,000?

Ittiam Systems,

974

How many bits microprocessor was first developed?

Honeywell,

986

In 8085 name the 16 bit registers?

4Cplus,

1253

What is the RST for the TRAP?

1307

Device density on a microprocessor/chip?

Sony,

1064

How can you increase ports of a microprocessor?

Honeywell, Zomato,

1253

Which interrupt is not level-sensitive in 8085?

1043

What is the purpose of Program Counter in a Micro - Processor?

941

Can you tell how many pins are there in 8085 Microprocessor?

Honeywell, Huawei, Zomato,

957

What do you mean by radio environment in building?

Ericsson,

883

Tell me the role of a car driver as one of a feedback mechanism.

Ericsson,

924


Un-Answered Questions { Embedded Systems }

What are the main issues associated with multiprocessor caches and how might you solve them?

2164


How do malloc and calloc work?

780


What is so great about ?

714


why is the number of gate inputs to CMOS gates usually limited to four?

1278


6-T XOR gate?

4187


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

2415


State an interrupt that is not level sensitive?

1063


Why do we need a infinite loop in embedded systems development? What are the different ways by which you can code in a infinite loop?

854


State the differences between absolute and linear select decosing.

2176


Explain what is microcontroller?

1044


Explain what are the differences between analytical and computational modeling?

837


What is difference between using a macro and a in line function?

850


what is multiplexer?

1101


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

2052


Explain what is multiplexer?

1030