Compare Van Neumann and Harvard Architecture.
[3 marks]Define addressing mode. List different addressing modes of 8051with example.
[4 marks]Draw and explain architectural block diagram of 8051.
[7 marks]List different modes of Timers and show bit structure of TMOD and TCON register.
[3 marks]Explain PSW register in brief.
[4 marks]Write an Assembly language program to find number of 1’s and 0’s from a given 8 bit data.
[7 marks]Write an Assembly language program to copy block of 8 bit data stored at 40h-44h memory location into 50h-54h Memory locations.
[7 marks]Explain function of following pins: (A) TRAP (C) HOLD (D) READY
[3 marks]Give Bit format of PSW in 8051.Explain bit significance of each bit.
[4 marks]Prepare a timing diagram for instruction MOV A, B.
[7 marks]For an 8051 system of 11.0592MHZ,Find how long it takes to execute following instructions: DEC R3, LJMP, MUL AB
[3 marks]Write an 8051 Cprogram to turn bit p0.5 on and off 10,000times.
[4 marks]Write an assembly language program to convert HEX number in unpacked BCD number .Store the result into Memory locations 30H onwards.
[7 marks]Enlist 8051 interrupts with vector address according to Priority.
[3 marks]Explain IE and IP register in brief.
[4 marks]Write an assembly language program to generate square wave of 50HZ frequency on pin 1.2using Timer 0 ,Mode1 and assume XTAL=11.0592MHZ
[7 marks]Draw logic diagram to generate control signal necessary for interfacing with memory chip.
[3 marks]Explain demultiplexing of Address/data lines in 8085.1
[4 marks]Explain Editor, Assembler, Compiler and Linker.
[7 marks]Explain tri state logic devices in brief.
[3 marks]Write a short not on different type of Memory.
[4 marks]Draw and explain LCD interfacing circuit.
[7 marks]Compare CISC and RISC processor.
[3 marks]Write a Cprogram for 8051 to transfer letter “A” serially at 9600 baud rate continuously.
[4 marks]Give a complete scheme to interface an 8 bit ADC to 8051 microcontroller.
[7 marks]