What is address bus, data bus and control bus in microprocessor 8051 ?
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Discuss 3 states signals io/m,s0,s1?
How subroutine can be called from the main program and how the program returns from the subroutine?
List some features of 8051 microcontroller.
How is EPROM generally erased
How clock signal is generated in 8086? What is the maximum internal clock frequency of 8086?
What is a coprocessor trap?
Which interrupt has highest priority?
Explain memory mapped i/o and i/o mapped i/o schemes?
Explain sphl instruction?
Write a program that will store the contents of an accumulator and flag register at locations 2000h and 2001h.
can microcontroller work indepandently
Give examples for maskable interrupts?