MU Electronics and Telecom Engineering (Semester 4)
Microprocessor and Peripherals
December 2012
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) Explain need of demultiplexing of ADO-AD7 of 8085 microprocessor.
5 M
1 (b) Explain difference between AJMP, 5JMP, LJMP instructions of 8051 microcontroller.
5 M
1 (c) Write program to 8255 PPI to read data from CL and transfer it to Port CU.
5 M
1 (d) Describe features of ARM controller.
5 M

2 (a) Draw and explain Timing diagram of LDA DOSOH.
10 M
2 (b) What is difference between memory mapped I/O and I/O mapped I/O? Interface 8085-8255 in I/O mapped I/O.
10 M

3 (a) Draw and explain architecture of 8051 microcontroller.
10 M
3 (b) Write a 8051 assembly language program to transfer message ?WELCOME? serially at 9600 boud 8 bit data, 1 stop bit.
10 M

4 (a) Explain addressing modes of ARM controller with examples.
10 M
4 (b) Write a program to generate square wave with pulse width of 100 as using 8155. Assume clock frequency is 3MHz.
10 M

5 (a) Interface 16KB EPROM using 8KB chip and 8KB RAM using 4KB chip. Use absolute decoding.
10 M
5 (b) Explain interrupt structure of 8051 microcontroller and related SFRs.
10 M

6 (a) Explain instruction DAA of 8085 with an example what are the contents of Reg A after following Program executed: [ egin {align*} 6000:& MVI A, 11 H \ & MVI B, 22 H \ & LXI H, 600 C \ & CALL ADDs \ &INR A \ &HLT \ ADDs: & XTHL \ & ADDB \ &RET end{align*} ]
10 M
6 (b) Explain internal structure of I/O ports of 8051 microcontroller.
10 M

7 (a) Explain SIM and RIM instruction of 8085 microprocessor.
10 M
7 (b) Write a program for 8051 microcontroller to count the number of 1's and number of 0's in 8-bit number.
10 M



More question papers from Microprocessor and Peripherals
SPONSORED ADVERTISEMENTS