Monday, January 17, 2022

Dr.A.P.J.Abdul Kalam University BE V SEM ALL BRANCH Microprocessors & Microcontrollers [EC504] Dec - 2020 Question Paper

Dr.A.P.J.Abdul Kalam University

Bachelor of Engineering

Fifth Semester Main Examination, Dec-2020

Microprocessors & Microcontrollers [EC504]

Branch-EC

Time: 3:00 Hrs Max Marks 70

Note : Attempt any five questions. All questions carry equal marks.

Q.1 (a) Explain the working of 8255in BSR and I/O modes.

(b) Explain with help of block diagram the 8086 internal architecture?

Q.2 (a) Describe addressing mode of 8086.

(b) Explain feature and architecture of 8051?

Q.3 (a) Explain with the help of block diagram 6845 CRT controller.

(b) Explain architecture of 8051 micro controller?

Q.4 (a) Explain different JUMP instruction of 8086.

(b) Explain data transfer mode of DMA controllers?.

Q.5 (a) Explain maskeble and non-maskebal intrupts.

(b) Write short note on memory interfacing?

Q.6 (a) Write about EEPROM and EROM?

(b) Explain general purpose register in detail?

Q.7 (a) Write a short note on subruotin calls.

(b) What do you mean by Instruction queue?

Q.8 Explain the following memories:

i) Main memory

ii) Secondary memory

iii) Cache Memory

Attachment & Scanned Copies:

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