Nov-2011.pdf - Seat No Enrolment No GUJARAT TECHNOLOGICAL...

This preview shows page 1 - 2 out of 2 pages.

1 Seat No.: _________ Enrolment No._______________ GUJARAT TECHNOLOGICAL UNIVERSITY BE SEM-IV Examination-Nov/Dec-2011 Subject code: 140701 Date: 25/11/2011 Subject Name: Microprocessor & Interfacing Time: 02.30 pm -5.00 pm Total marks: 70 Instructions: 1. Attempt all questions. 2. Make suitable assumptions wherever necessary. 3. Figures to the right indicate full marks. Q.1 (a) Explain (i) ALU (ii) Program counter (iii) Instruction decoder Explain addressing modes of 8085 microprocessor with example 03 04 (b) Draw and explain the block diagram of 8085 microprocessor architecture. Q.2 (a) Explain (i)CMA (ii) RRC (iii) RET Write a program to load two unsigned numbers 42H and 67H respectively in register B and register C. Subtract C from B. if the result is in 2’ complement, convert the result in absolute magnitude and display it at PORT1.otherwise display the positive result. 07 03 04

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture