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E1153 Pages: 2

What are the different input modes of 8279?
Describe the sequence of steps for developing and deploying an ISR for handling
interrupt in 8086.
PARTE
Answer any four full questions, each carries 10 marks.
Describe different types of microcontrollers.
What are the different criteria that should be considered while selecting a
microcontroller?
What are the different operating modes of 8253?
Describe any four control transfer instructions of 8051?
What are the Special Purpose Registers of 8051?
Write the structure of Program Status Word (PSW) of 8051?
How the stack operations of 8051 differ from 8086?
Write an 8051 program to count the number of Is in the binary representation of
a given number.
Explain the internal memory organization of 8051.
Explain any five addressing modes of 8051 with example.
What is the use of following 8051 instructions :
ADDC, SUBB, CPL, RLC and SWAP?

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