8051 Questions


#1
  1. Why do we connect external pull up resistor at port 0 of 8051 ?
  2. What is highest priority interrupt in 8051?How to set priorities?
  3. Lower priority interrupt in 8051?
  4. Min. & Max. Baud rate acheived in serial transmission of 8051? How can we achieve it?
  5. Difference between controller & processors?
  6. What does embedded mean?
  7. In which register results of arithmetic & logical operations are stored in 8051?
  8. What is machine cycle and instruction cycle?
  9. Under which condition overload register is high?
  10. Advantage & disadvantage of 8051?