
Radhika
Member • Jul 10, 2011
Techincal Interview Questions - Microprocessor questions
MICROPROCESSOR QUESTIONS
- · Which type of architecture 8085 has?
- · How many memory locations can be addressed by a microprocessor with 14 address lines?
- · 8085 is how many bit microprocessor?
- · Why is data bus bi-directional?
- · What is the function of accumulator?
- · What is flag, bus?
- · What are tri-state devices and why they are essential in a bus oriented system?
- · Why are program counter and stack pointer 16-bit registers?
- · What does it mean by embedded system?
- · What are the different addressing modes in 8085?
- · What is the difference between MOV and MVI?
- · What are the functions of RIM, SIM, IN?
- · What is the immediate addressing mode?
- · What are the different flags in 8085?
- · What happens during DMA transfer?
- · What do you mean by wait state? What is its need?
- · What is PSW?
- · What is ALE? Explain the functions of ALE in 8085.
- · What is a program counter? What is its use?
- · What is an interrupt?
- · Which line will be activated when an output device require attention from CPU?