Explain all the bits of PSW register.
[3 marks]What is the function of following pins in 8085: TRAP & HLDA
[4 marks]Draw & explain the timing diagram of MVI A, 32H instruction for 8085.
[7 marks]Differentiate between MOVX & MOVC instructions instruction
[3 marks]How stacks are accessed in 8051? Explain PUSH & POP instructions.
[4 marks]How demultiplexing of address/data lines (AD0 – AD7) can be achieved? Also explain the generation of all the control signals.
[7 marks]Write a short note on interrupts available in 8051.
[7 marks]Explain assembly directives.
[3 marks]Explain the instruction DJNZ & JBC in 8051
[4 marks]Write an assembly program to find 0’s & 1’s from a given number.
[7 marks]List all the data types available in C.
[3 marks]Explain the programming model of 8085.
[4 marks]Write an assembly program to add two 16 bit numbers.
[7 marks]What is the function of temporary registers W & Zin 8085.
[3 marks]Compare Von Neumann & Harvard architecture.
[4 marks]Write a Cprogram to toggle all the bits of port 1 at a time delay of 50 ms.
[7 marks]Why Cprogramming is preferred over assembly programming?
[3 marks]Find control word to be loaded in timer registers TH0 & TL0 to generate time delay of 25 ms. Assume clock frequency as 11.0592MHz
[4 marks]Write a Cprogram to continuously transfer the message “YES” serially at 9600 baud, 8 bit data, and 1 stop bit.
[7 marks]What is RETI instruction? How it is different from RET instruction?
[3 marks]List the alternate functions of all the pins of port 3.
[4 marks]Draw & explain the interfacing of matrix keyboard with 8051.
[7 marks]Explain the advantage of IDE in program development.
[3 marks]Write a short note on types of memory.
[4 marks]Explain the role of SBUF & SCON registers in serial transfer in8051.
[7 marks]