Explain all the bits of PSW register.
[3 marks]Explain demultiplexing of address/data lines in 8085.
[4 marks]Draw & explain physical structure of port 0.
[7 marks]Differentiate between RET & RETI, SJMP & LJMP instruction in 8051.
[3 marks]Explain the assembly directives supported by 8051 assembler.
[4 marks]Draw & explain the timing diagram of instruction MOV C, Ain 8085.
[7 marks]Draw & explain interfacing of seven segment LED with 8051.
[7 marks]What are tri-state devices & why they are essential in bus oriented system?
[3 marks]Discuss the RAM memory space allocation in 8051.
[4 marks]Write an assembly program to add two 16 bit numbers.
[7 marks]Write steps required to develop an assembly language program.
[3 marks]State the function of ALE & TRAP pins in 8085
[4 marks]Write an assembly program to find factorial of a number.
[7 marks]List the alternate functions of all the ports of 8051.
[3 marks]Find the control word to be loaded in TH0 & TL0 to generate a time delay of 10 μs. (Assume 12 MHz clock)
[4 marks]Write a Cprogram to generate a square wave of frequency 10 KHz on pin P0.1
[7 marks]Explain how priorities of interrupts can be set & changed in 8051.
[3 marks]Explain the instructions DJNZ & SWAP with reference to 8051.
[4 marks]Write a Cprogram to toggle all the bits of port 1 with a delay of 250 ms.
[7 marks]Why Cprogramming is preferred to assembly programming?
[3 marks]List the Cdata types available in 8051.
[4 marks]Explain the role of SCON & SBUF in serial communication.
[7 marks]Compare Von Neuman & Harvard architecture.
[3 marks]Write down steps to be performed during execution of interrupt in 8051.
[4 marks]Write a short note on different types of memory.
[7 marks]