Revision as per format MSRIT .F702 Rev. No. 2

CIE: Internal Assessment Details

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Internal Assessment Question Paper II

M.S. Ramaiah Institute of Technology

(Autonomous Institute, Affiliated to VTU)

Department of Computer Science and Engineering

Programme : B.E Term: Jan-May 2016 Date: 05- 04-2016

Course: Introduction to Microprocessors Course Code: CS1543 CIE: Test 2

Sem: IV Sec: A, B & C Max Marks: 30 Time: 2:00 3:00 PM

Portions for Test: (L10-L35)

Instructions to Candidates:

1. Answer any two full questions. Question 1 is compulsory. Each Question carries 15M.

2. Calculator is not allowed for the test.

3. Mobiles, smart watches or any electronic gadgets are strictly banned.

Sl#

Question

Marks

Blooms Level

CO Mapping

1

a. Write a C++ code using 8086 assembly constructs to accept and display one character of 1 through 9, all other characters are ignored.

4

Create

CO2

b. Use a BIOS routine and develop a 8086 assembly language program to clear the screen and keep the cursor at the center of the screen

3

Create

CO2

c. Discuss why address decoding is necessary in memory interface of processors?

4

Understand

CO3

d. Differentiate between the different methods used for interfacing I/O devices to the processor.

4

Understand

CO3

2

a. 100 bytes are stored in BLOCK1 and BLOCK2. write a 8086 assembly language program to sum the contents of BLOCK1 and BLOCK2 and stores the results over top of the data in BLOCK2.

3

Create

CO2

b. Design a circuit to connect eight EPROMs of 32KX8 to 8086 microprocessor based system. The starting address is F0000H. Write the complete address map, suitable decoding scheme and draw the final diagram.

8

Create

CO3

c. It is required to connect eight LED switches to the 8086 processor. Apply any logic of your choice and develop a diagram also write a piece of 8086 assembly code to read the status of the switches and display the count of switches ON and OFF. The port address is 87h.

4

Create

CO3

3

a. Develop a 8086 assembly language code to multiply the contents of register AX by 10(decimal), use logical instructions.

3

Create

CO2

b. Interface four 16KX8 ROMs and four 32KX8 RAMs to 8086 processor. Write address map, use suitable decoding logic and also write the diagram.

8

Create

CO3

c. Connect a printer device to the 8086 processor. Draw the circuit explain the method and the design of the decoding logic. Use any suitable port address.

3

Create

CO3

Course Outcomes meant to be assessed by the IA Test:

CO2: Develop 8086 assembly language programs for different applications.

CO3: Design memory and I/O interfacing circuits with the help of PPI to the 8086 processor.

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