Q.1
14 Marks(a)
Compare RISC Processor with CISC Processor.
(b)
Explain How address and data bus can be demultiplexed in 8085.
(c)
Describe 8085 microprocessor architecture with neat diagram.
Gujarat Technological UniversitySummer 2026 examination
GTU 3160914 Microprocessors and Microcontrollers Summer 2026 Question Paper & PDF
B.E. · Electrical Engineering · Semester 6 · Subject code 3160914
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 10:30 AM – 1:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
Draw pin diagram of 8051 microcontroller.
(b)
Explain Flag register in detail for 8085 microprocessor
(c)
Describe generation of control signals for 8085 microprocessor.
OR
(c)
List out various Hardware and software interrupts of 8085. Describe vectored and non-vectored Interrupts for 8085 microprocessor.
Q.3
14 Marks(a)
Write full name of instructions of machine control: EI, DI, NOP, HLT, SIM, RIM.
(b)
Draw timing diagrams for instructions MOV A, B.
(c)
Explain interfacing of 8051 with ADC 0808.
OR
(a)
Find the time duration for one machine cycle if a 16 MHz crystal is connected to 8051.
(b)
Explain the function of following pins in 8085 μp: HLDA, HOLD, TXD, EA.
(c)
Draw and explain timing diagram of instruction STA 2000H of 8085.
Q.4
14 Marks(a)
Give the priority level of the interrupt sources of 8051.
(b)
Explain in brief : Program Counter, Stake Pointer.
(c)
Explain the working of timer in 8051 using the configuration of TCON and TMOD registers. Explain the timer operation in mode 0 and mode 1.
OR
(a)
List out various features of Arm processor.
(b)
Explain the role of SBUF & SCON registers in serial transfer in
8051
(c)
Explain how to interface 7-segment LED display with 8051.
Q.5
14 Marks(a)
Compare basic differences of Van neuman and Harvard architecture.
(b)
Compare Microprocessor, Microcontroller, and ARM Processors.
(c)
Draw and explain an interfacing diagram to interface 4 x 4 matrix keyboard with 8051 microcontroller.
OR
(a)
List various processing modes of ARM processors with classification.
(b)
Write a program to add any two 16-bit data using 8051.
(c)
Draw the bit pattern of program status word of 8051 and explain the significance of each bit with examples.
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About this paper
Official Gujarat Technological University (GTU) examination paper for Microprocessors and Microcontrollers (Summer 2026, B.E. · Electrical Engineering, Sem 6). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.