Assignment I

Question: 1 (Reg.No: 63-85) A personal computer manufacturer plans to upgrade from an 8-bit to a 16-bit processing system. Explain the architecture of the 8086 microprocessor, emphasizing the roles of the Bus Interface Unit (BIU) and Execution Unit (EU). Compare the 8085 and 8086 architectures in terms of data width, memory addressing capability, instruction queue, and performance, and justify why 8086 is more suitable for high-performance computing applications. Industry Link: Microprocessor-Based System Design & Computing Hardware. GATE Relevance: High-weightage topic: 8086 architecture and comparison with 8085 Bloom’s Level: Analyze (L4) Course Outcome: CO2 - Apply microprocessor concepts to select suitable processors for applications. Question: 2 (Register no: 86-108) An educational robotics company is developing a training kit that interfaces sensors and actuators using a microprocessor. Describe the pin configuration and signal functions of the 8085 microprocessor, explaining the purpose of address/data multiplexing, control signals, and interrupt pins. Discuss how proper understanding of pin functions helps in error-free hardware interfacing and system reliability. Industry Link: Robotics Training Kits & Embedded Hardware Design GATE Relevance: Frequently tested concept on 8085 pin diagram and signal roles. Bloom’s Level: Apply (L3) Course Outcome: CO1 - Understand microprocessor operation and hardware interfacing Question: 3 (Register no: 109-125,503,505,506.508, 514) An electronics engineering team is developing an 8085-based embedded control system for an industrial monitoring application. Explain in one page how the architecture and instruction set choices e.g., use of memory-mapped I/O vs isolated I/O, specific addressing modes make the system easier or harder to maintain for technicians. Draw a clean block diagram of an 8085-based system for this application, labeling buses, memory, and I/O devices. Write a short technical note justifying how the use of specific addressing modes and instructions in the 8085 improves. (CO-1) Industry - Power Electronics & Defense Systems GATE : GATE ECE 2020