Microprocessor System, Question Paper of Bsc.IT 4th Semester, Download Previous Years Question Paper 4

Roll No.................................

BS-206: MICROPROCESSOR SYSTEM

Paper ID : A0415

Time allowed : 3 Hrs.

Note : This paper consists of two sections. Section A is compulsory, Do any four questions from Section B.

Section – A

1.

(a) How many memory locations can be addressed by a microprocessor with 14 address lines?

(b) Why is the data bus bidirectional?

(c) How are clock signals generated in 8085?

(d) What is the significance of XCHG and SPHL instructions?

(e) Define T-state. In which T-state is the ALE signal activated?

(f) When and where is the Ready signal used?

(g) Out of SRAM and DRAM which on is faster and why?

(h) What is stack? List instructions related to stack operations.

(i) What are Soft Errors in Dynamic Ram?

(j) Define opcode and operand.

Section – B

2. Write short notes on: 

a) Evolution of Microprocessors 

b). Data representation

3. Draw and explain block diagram of 8085 microprocessor.

4. Discuss various instructions available in 8085 microprocessor.

5. Explain various semiconductor memories.

6. Explain the timing diagrams for

 (i) Opcode fetch eycle

 (ii) I/O write cycle

7. Draw and explain in brief the timing diagrams for the instruction CALL 2000H, with appropriate control and status signals.