Anna University
Department of Electronics and Communication Engineering
5th Semester Question Bank
EC2304 Microprocessors and Microcontrollers - Question Bank - 16 mark Questions
Unit I
1. Draw & explain the architecture of 8085 microprocessor (16)
2. Draw the Pin Diagram of 8085 and explain the function of various signals (16)
3. Explain the instruction classification & instruction sets (16)
4. Write a program to sort the numbers in ascending and descending order. (16)
5. Draw the timing diagram of the following Instructions (16)
Unit II
1. With neat sketch explain the functions of 8255 PPI. (16)
2. With neat sketch explain the functions of 8251. (16)
3. With neat sketch explain the function of DMA controller. (16)
4. With neat sketch explain the function of Programmable Interrupt Controller. (16)
5. With neat sketch explain the function of Keyboard and display controller. (16)
6. With neat sketch explain the function of A/D converter. (16)
7 With neat sketch explain the function of D/A converter. (16)
Unit III
1. Draw the architectural block diagram of 8086. (16)
2. Explain with examples addressing modes of 8086 processor. (16)
3. Draw & explain the modes of operation of 8086. (16)
4. Explain the instruction set of 8086 with examples. (16)
Unit IV
1.With neat sketch explain the architecture of 8051 microcontroller. (16)
2. Draw the Pin Diagram of 8051 and explain the function of various signals. (16)
3. List the various Instructions available in 8051 microcontroller. (16)
4. Explain the memory structure of 8051 (16)
5. Explain the I/O port structure of 8051. (16)
6. Draw the pin configuration of 8051, explain each pin. (16)
Unit V
1. Explain the instruction set of 8051. (16)
2. Draw the format of SCON register. Explain different bits in it. (16)
3. Write an assembly language program to find “Fibonacci Series” of “N” given term. (16)
4. Write an assembly language program for stepper motor control. (16)
5. Explain the interfacing concept of keyboard with 8051. (16)
6. Explain the interfacing concept of ADC & DAC with controller. (16)