August
T05/E07053/EE/20150814
2015
Microprocessor -2
Instructions:
MARKS-80
Time: 3 Hrs
1. All questions are compulsory.
2. “Long Answer type Question (LAQ)” is a supply type
question of 15 marks which required a typical answer of about
60-80 lines in bout 32-40 minutes.
3. “Sort Answer type Question (SAQ)” is a supply type question
of 5 marks which required a typical answer of about 15-20 lines
in bout 08-10 minutes.
4. Figures to the right indicate marks allotted to the questions.
5. Assume suitable data if necessary
6. Use a nonprogrammable type of scientific calculator is
allowed
Marks
SECTION-A
Q.1 Draw a neatly labeled 8259A internal block diagram. Describe in
brief. State the function of IRR, IMR, ISR and priority resolver,
draw response of its.
OR
15
Q.1 State 8086 interrupt types, Explain
1) Divide by Zero interrupt -Type0
2) Single step interrupt- Type1
3) Non makeable interrupt- Type2
4) Break-point interrupt – Type3
15
Q.2 What are the keyboard types? Draw key-switch types and explain it.
Draw 8255A status word format for 1 input and output operation.
15
OR
Q.2 Explain 8255A operational three modes with diagrammatic form.
Describe the hardware & software needed to control a stepper
motor.
15
Q.3 Draw 8279 display refresh timing and keyboard scan timing.
Explain it.
5
Q.4 Explain interfacing to AC power device of solid-state relay.
5
SECTION-B
Q.5 Draw a block diagram of a digital filter and briefly and briefly
describe its basic operation. Write short note of switched capacitor
digital filter. State any two advantages & applications of digital
filters.
OR
Q.5 Draw block diagram, circuit diagram, waveform of microcomputer
based process control system and explain it. Write short note of the
80960 embedded controller.
15
Q.6 Draw block diagram of 8087 Math coprocessor and explain
function of each block. State advantages and disadvantages of its.
15
15
OR
Q.6 Draw pin diagram of 8237 DMA controller and explain its pin
functions.
15
Q.7 Describe the major difference in how an output value is computed
in an FIR digital filter and how it is computed in IIR filter.
5
Q.8 Draw block diagram of microcomputer based smart scale and
explain its operation.
5
Computer Generated Random Question Paper dated: 16-07-2015 11:32:14
***BEST OF LUCK***