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86 Family Interview Questions
Questions Answers Views Company eMail

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

 605

What are the steps involved in a fetch cycle

 574

What are the advantages of memory segmentation in 8086

 613

The interrupt response time is determined by?

 587

What is the purpose of the biu in the 8086?

 605

After a pop instruction where does the stack pointer points?

 604

What are the two major differences between intr and other interrupts (hardware)?

 1022

explain the trap input for the 8085.

 586

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

 699

Explain the internal architecture of the 8086 microprocessor?

 590

Define psp?

 631

Define the architecture of the 8085 microprocessor?

 568

What are the index registers in 8086?

 625

Classify interrupts on the basis of signals.

 540

What is the purpose of a buffer register in reference to 8085?

 605

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Un-Answered Questions { 86 Family }

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

560

With the help of an example explain how physical address is calculated?

542

What is the significance of the clk pin in the 8086?

771

Define the functions of the dx register.

606

List various types of interrupts available in 8051 microcontroller?

601




What are the data pins of microprocessors? What is their use?

596

Can 8259 be interfaced with 8085 via the trap pin?

570

Which is the stack used in 8085?

581

What is the need for port?

663

What does a microprocessor mean?

645

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

660

What are the different types of addressing modes?

571

Explain with an example how parameters can be passed using registers.

600

What is an interrupt service routine in microcontroller?

568

Why 8051 is called 8 bit microcontroller?

915

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