August V63/T04052/EE/20150812 2015 Microcontroller Instructions: Marks-80 Time: 3 Hrs 1. All questions are compulsory. 2. “Long Answer type Question (LAQ)” is a supply type question of 15 marks which required a typical answer of about 60-80 lines in bout 32-40 minutes. 3. “Sort Answer type Question (SAQ)” is a supply type question of 5 marks which required a typical answer of about 15-20 lines in bout 08-10 minutes. 4. Figures to the right indicate marks allotted to the questions. 5. Assume suitable data if necessary 6. Use a nonprogrammable type of scientific calculator is allowed Marks SECTION-A Q.1 Explain the WREG Register in the PIC, also explain the PIC File Register Using Instructions with the Default Access Bank. 15 OR Q.1 Give applications of 8051 microcontroller and explain one of them in detail. Q.2 Differentiate between ADDC and SUBB instruction. List precaution to the taken for both instructions during the program. 15 15 OR Q.2 What is the difference between SJMP, AJMP and LJMP? 15 Q.3 What is Special Function Register of 8051 Microcontroller? 5 Q.4 Compare Instructions, Rotate Instruction and Data Serialization. 5 SECTION-B Q.5 Describe the concept of Data Types and Time Delays in C. Explain it briefly. 15 OR Q.5 Differentiate between the PIC18 Connection to RS232 and PIC18 Serial Port Programming in C. 15 Q.6 Draw a circuit schematic of washing machine control using 8051. 15 OR Q.6 Describe serial interface with 8051 microcontroller. 15 Q.7 What are the design steps used for stepper motor. 5 Q.8 Explain the interrupt structure of 8051 microcontroller. Computer Generated Random Question Paper dated: 07-07-2015 14:53:40 ***BEST OF LUCK*** 5