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Embedded Systems Interview Questions
Questions Answers Views Company eMail

Signal voltage ranges for a logic high and for a logic low in RS-232C standard are

CDAC,

1087

What does SD RAM refers to

CDAC,

1080

How is EPROM generally erased

CDAC,

1125

In what is the ready pin of a microprocessor used

CDAC,

1169

The PCI bus is the important bus found in all the new Pentium systems because

CDAC,

1077

Which type of JMP instruction assembles if the distance is 0020h bytes

CDAC,

1396

If a1M1× DRAM requires 4 ms for a refresh and has 256 rows to be refreshed, no more than __________ of time must pass before another row is refreshed.

CDAC,

1318

What is 8251?

CDAC,

1162

In which T-state does the CPU sends the address o memory or I/O and the ALE signal for Demultiplexing

CDAC,

1530

Where the data is transferred in a DMA write operation?

CDAC,

1146

What is the bit size of Itanium processor of Intel?

CDAC,

1084

If the crystal oscillator is operating at 15 MHz. What will be the PCLK output of 8284?

CDAC,

1749

What number of the times the instruction sequence below will loop before coming out of loop is MOV AL, 00hA1: INC AL JNZ A1

CDAC,

1465

In the instruction FADD, What does F stands for

CDAC,

1233

In case of DVD, the speed is referred in terms of n X. Here what does X refers to

CDAC,

1092


Un-Answered Questions { Embedded Systems }

Describe to me some bad code you've read or inherited lately.

800


Mention what are three regions of operation of mosfet and how are they used?

1080


Tell me why embedded system is useful?

820


When is the LOCK prefix used often?

1120


What is the difference between cmos and bipolar technologies?

1129


Explain me what is the difference between microprocessor and microcontroller?

902


Tell me what are the commonly found errors in embedded systems?

864


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

3445


What is program counter in 8085?

1086


What are the different functional units in 8086?

1141


What is digital signal controller ?

863


What are the different types of arithmetic operations that can be performed by the 8085 microprocessor?

1200


What is the function of simple thread poll in embedded system?

851


What is the function of eu?

1101


How subroutine can be called from the main program and how the program returns from the subroutine?

993