B.Tech-B.Tech Electrical Engineering 5th Sem Microprocessors and computer Architecture 5E3124(Rajasthan Technical University-2012)
5E3124
B.Tech. V Sem.(Main/Back) Exam. Dec. 2012
Electrical Engg.
5EE2 Microprocessors and computer Architecture
Time: 3 Hours
Maximum Marks: 80
Min. Passing Marks: 24
UNIT - I
Q.l. (a) Explain the architecture of 8085 in detail. [8]
(b) Differentiate between 8085 & 8086 microprocessor. [8]
OR
Q.l. (a) Explain the pin diagram of 8085. [8]
(b) Explain the followings (in brief):-
l. Control Bus.
2. Buffer.
3. Latches.
4. CPU. [4x2=8]
UNIT - II
Q.2. Explain the following terms with reference to 8085 microprocessor :-
1. ALU.
2. Control & timing unit.
3. Register array.
4. Interrupt control.
5. Serial I/O control.
6. Instruction register and decoder.
Draw the functional block diagram of 8085 also. [6x2+4=16]
OR
Q.2. (a) Explain various input/output devices. [8]
(b) Draw timing diagram of opcode fetch machine cycle. [8]
UNIT - III
Q.3. (a) Explain the following instructions using a suitable example:-
1. XCHG
2. DAA
3. LHLD
4. XTHL [4x2=8]
(b) Write an assembly language program for printing table of a given integer number. [8]
OR
Q.3. (a) Explain various instruction formats applicable to the 8085 instruction set. [8]
(b) Write an assembly language program that count the number of 1's in a given 8 bit stream. [8]
UNIT-IV
Q.4. (a) Explain 8257 chip using block diagram. [8]
(b) Write Short Note on:-
(i) AID Convertor.
(ii) Applications of 8253 chip. [8]
OR
Q.4. (a) Explain 8155 chip using a block diagram. [8]
(b) Explain keyboard and display interface. [8]
UNIT- V
Q.5. (a) Differentiate between:-
1. Primary and secondary memory.
2. Static and dynamic memory.
3. Virtual and physical memory.
4. Volatile and non-volatile memory. [4x2=8]
(b) Explain cache memory. [4]
(c) Explain basic computer architecture [4]
OR
Q.5. Define the followings:-
l. Memory latency.
2. Memory Bandwidth
3. Memory seek time
4. PAL
5. PLA
6. Flash Memory
7. DDRAM
8. SDRAM [8X2=16]
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