EC6504 Microprocessor and Microcontroller, Third year, Department of Electronics & Communication Engineering, First and second Units Questions

PART A – (10 x 2 = 10 Marks)
1.      What are the basic units of a microprocessor?
2.      What is assembly Language?
3.      What are machine Language and Assembly Language Programs?
4.      What is a bus?
5.      What is the function of Microprocessor in a system?
6.      What is fetch and execute cycle?
7.      What is DMA?
8.      What is the need for MN / MX pin in 8086?
9.      Explain the function of M / IO in 8086.
10.  Where is the READY signal used?
PART B – (5 x 16= 80 Marks)

1.      Explain the 8086 architecture with neat sketch.                                                         (16)
2.      (i) Explain the 8086 Data Transfer instructions with an example for each.                (8)
(ii) Explain the 8086 Logical instructions with an example for each.             (8)
3.      Briefly explain the assembler directives.                                                                    (16)
4.      Explain the minimum and maximum modes operations of 8086 with neat diagram.(16)
5.      Explain the Pin configuration of 8086.                                                                       (16)