State the difference between RISC and CISC architecture
[3 marks]What is the size of address and data bus in 8085? Are they unidirectional or bidirectional? Show, how a 2K memory can be interfaced with 8085?
[4 marks]Draw and explain architectural block diagram of 8085 microprocessor
[7 marks]Give the function of RS0 and RS1 bits in PSW register of 8051
[3 marks]State the significance of PC and DPTR register of 8051
[4 marks]Draw and explain timing diagram of MVI instruction of 8085 microprocessor
[7 marks]Draw and explain the internal RAM structure of 8051. Show register banks and bit addressable area of 8051
[7 marks]Explain the function of the following pins in 8051
[3 marks]INT0 (ii) RXD (iii) EA
[ marks]Explain the following instructions of 8051 giving appropriate examples (i) CJNE (ii) JBC
[4 marks]Discuss the different types of bit manipulation instructions available with
[ marks]Write an ALP to divide the data in RAM location 3FH by the number 12. Put the quotient in R4 and remainder in R5.
[3 marks]Write an ALP to subtract the contents of register R2 from the number F3H and put the result in external RAM location 5678H
[4 marks]With the help of appropriate examples, discuss the different types of rotate instructions available with 8051
[7 marks]Acertain instruction requires two machine cycles for execution. If the clock frequency is 11.0592 MHz determine the time required to execute the instruction
[3 marks]What is the significance of GATE bit in TMOD register?
[4 marks]Give the format of TCON register and explain the function of each bit.
[7 marks]Give difference between simplex, half duplex and full duplex transmission
[3 marks]Write an assembly language program for 8051 to transfer the letter “A” serially at 4800 baud continuously. Assume XTAL = 11.0592 MHz
[4 marks]Write a Cprogram to alternately display 55H and AAH on P1 port with some delay
[7 marks]Give interrupt vector table of 8051. Discuss their priorities
[3 marks]Discuss the format of IE register and explain the function of each bit
[4 marks]Draw and explain how 8051 can be connected to external 8K RAM. Which ports are used for address and data lines?
[7 marks]What is meant by pipelining? How it affects execution speed?
[3 marks]Discuss the format CPSR register in ARM. State the different operating modes of the processor.
[4 marks]What is stepper motor? State some of its applications. Draw and discuss how 8051 can be interfaced with stepper motor?
[7 marks]