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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,

1050

What does SD RAM refers to

CDAC,

1013

How is EPROM generally erased

CDAC,

1065

In what is the ready pin of a microprocessor used

CDAC,

1113

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

CDAC,

1023

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

CDAC,

1333

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,

1258

What is 8251?

CDAC,

1108

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

CDAC,

1495

Where the data is transferred in a DMA write operation?

CDAC,

1105

What is the bit size of Itanium processor of Intel?

CDAC,

1033

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

CDAC,

1673

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,

1413

In the instruction FADD, What does F stands for

CDAC,

1191

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

CDAC,

1027

Un-Answered Questions { Embedded Systems }

What is Latch Up? Explain Latch Up with cross section of a CMOS Inverter. How do you avoid Latch Up?

1245

Given time, cost, client satisfaction and best practices, how will you prioritize them for a project you are working on? Explain why.

846

What type of architecture is used in 8085 microprocessor?

859

In how many groups can the signals of 8085 be classified?

1155

What is an interrupt? List various types of interrupts available in 8051 microcontroller?

1092

How about voltage source?

2212

What are the advantages of memory segmentation in 8086

1079

Explain various adders and difference between them?

1157

What is the function of enhancement mode transistor?

1064

What is the bus arbitration problem in the 8086 and how can it be resolved?

1065

what are the differences between isolated i/o and memory mapped i/o

992

What are the software instructions related to stack operations?

1056

What is risc architecture?

767

Do the interrupts of 8085 have priority?

981

Describe the instruction register of 8085?

986

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