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Embedded Systems Interview Questions
Questions Answers Views Company eMail

in a sn SR latch made by using cross coupling of two nand gates, if both S andR inputs set o then it will result

DRDO, ISRO,

1 6010

How can to check the working of a sensor deployed in a project?

CMC,

1683

how to know weather the controller is 16 bit or 32 bit?

Bosch,

1 4009

what is the undefined bits in flag registers of 8085 microprocessor?

2118

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;

1616

Design an 8 is to 3 encoder using 4 is to encoder?

Intel,

1338

List some analog modulation techniques.

Zensar,

1085

What are the main differences between the 8085 and 8086 microprocessor?

Zensar,

1087

What is the difference between a microprocessor and a microcontroller?

Zensar,

1101

What is the difference between 8085 microprocessor and 8086 microprocessor?

Visa,

1095

What is rise time and bandwidth?

Syntel,

979

What is the difference between 8085 microprocessor and a 8086 microprocessor?

Syntel,

1245

These are two ways in which a microprocessor can come out of Halt state.

CDAC,

1111

After the following has been executed MOV BL, 8C MOV AL, 7E ADD AL, BL; what will be the contents of register AL?

CDAC,

2337

What are Pseudo instructions basically?

CDAC,

1078


Un-Answered Questions { Embedded Systems }

Explain how does combination of functions reduce memory requirements in embedded systems?

939


explain about externally initiated operations

1070


On a scale of one to ten, rate me as an interviewer now 26 which stack is used in 8086?

974


What are the different types of customizations that is used with the “volatile” keyword?

857


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

3146


What is the position of the stack pointer after the pop instruction?

1054


How does input/output bus functions?

832


Do you know what is the use of volatile keyword?

837


Mention any one 32 bit microcontroller and explain the same.

961


How much total external data memory that can be interfaced to the 8051?

1212


Comment the size of stack?

998


List various types of interrupts available in 8051 microcontroller?

1067


How are labels named in assembly language?

1303


What is single stepping and how can it be achieved on the 8086?

1221


What type of interrupt is the “trap” and what does it do?

1108