Microprocessor & Interfacing 2022 Question Paper — Government College…
The 2022 Microprocessor & Interfacing previous year question paper (Government College of Engineering and Technology, Jammu), with every question and its marks.
- University: Government College of Engineering and Technology, Jammu
- Subject: Microprocessor & Interfacing
- Course: Microprocessor & Interfacing
- Year: 2022
- Paper: end-term
- Duration: 180 minutes
- Total marks: 75
Instructions
- 1. Attempt any five questions selecting atleast two from each section. All questions carry equal marks.
- 2. Assume missing data if any.
- 3. Use of scientific Calculator is allowed.
Questions
SECTION - A
- QQ1(a). Draw and explain the architecture of 8085 microprocessor. [9 marks]
- Q(b). Draw a schematic to de-multiplex the bus $AD_7 - AD_0$ using 8282 octal latch. [6 marks]
- QQ2 (a). Write a program in 8085 assembly language to find square of an 8-bit number. [7 marks]
- Q(b). With a neat diagram describe the architecture of the 8085 interrupt system. [8 marks]
- QQ3. Categorize the instruction set of 8085 microprocessor. Support your answer with relevant example in each case. [15 marks]
- QQ4 (a). Draw the block diagram showing interfacing schemes for interfacing four 8K EPROMs, two 4K RAMs with 8085 microprocessor indicating all the required control, signals. [8 marks]
- Q(b). Draw the timing diagram for the instruction LDA 9000H stored in the memory location 8000H. [7 marks]
SECTION - B
- QQ5. Explain the operation and application of the 8259 PIC in detail with diagram. Also explain various modes of operation. [15 marks]
- QQ6 (a). Explain mode 0 and mode 1 operations of 8255 ports. [8 marks]
- Q(b). Explain the mode 1 input configuration of 8255 using its control word, control signals, timing diagram and status word. [7 marks]
- QQ7 (a). Show the pin configuration and function of signals of 8086 microprocessor. [9 marks]
- Q(b). Explain the functions of the following units with reference to 8086 CPU: (i) Instruction Queue (ii) Index Registers (iii) Segment Registers [6 marks]
- QQ8 (a). Explain various addressing modes of 8086 with example. [9 marks]
- Q(b). If the code segment for an 8086 program starts at address 80500 H, what number will be in the CS register? Assuming this same code segment base, what physical address will be code byte be fetched from if the instruction pointer contains 629C H. If the data segment register (DS) contains 5000 H. What physical address will the instruction MOV AL, [234B H] read? [6 marks]