Microcontroller for Power Electronics — Winter 2018

Explain the bits of PSW register of 8051.

Explain role of microcontroller for power electronics converters.

Explain various addressing modes of 8051 microcontroller with any instruction.

What is multiplexing of data/address bus.

Draw RAM organization of 8051 microcontroller describing general purpose and special function register area.

Give comparison of microcontroller and microprocessor.

Explain MVI A,#05h machine cycle for 8085 microprocessor.

Define bits of IE register of 8051 microcontroller.

What is software delay? Where it is necessary?

Draw and explain internal architecture of 8085 microprocessor.

What is interrupt vector table ?

Generate 100 microsecond delay by assembly language program assuming each instruction used being of 1 machine cycle. Take crystal frequency of 12 Mhz.

Explain interfacing of LCD display with 8051 microcontroller.

Draw pin diagram of 8051 microcontroller.

Define instruction cycle, machine cycle & T-state.

Explain interfacing of 7-segment display with 8051 microcontroller without 7447 decoder driver.

List 3-byte instructions of 8051 instruction set.

In a semester, a student has to take six subjects. The marks of the midsem exam of a student are stored in RAM locations 47H onwards. Write assembly language program to find the average marks and output it on port 1.

Explain interfacing of 7-segment display with 8051 microcontroller with 7447 decoder driver.

List and define branching instructions of 8051 instruction set.

Explain any two arithmetic instruction of 8051 microcontroller.

Draw architecture of 8085 microprocessor and explain its registers.

What is interrupt? Give general steps for attending any interrupt.

Explain any two logical instructions of 8051 microcontroller.

Explain timer of 8051 microcontroller. Explain mode 2 operation of timer.1