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22-Elec-A4 Digital Systems and Computers: December 2018

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 NAND / NOR gate realizations of a Boolean function
  2. Question 2 Synchronous counter with JK flip-flops
  3. Question 3 K-map minimization and PAL/PLA choice
  4. Question 4 Computer-system components and CPU registers
  5. Question 5 Big-endian storage and the stack
  6. Question 6 Two-digit seven-segment display driver

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22-Elec-A4 Digital Systems & Computers — 2018-Dec (Worked Solutions)

National Exams — December 2018 · 16-Elec-A4 Digital Systems & Computers. Closed book, 3 hours. Six questions, 12 marks each; the rubric requires any five, but all six are solved here as a study resource. Approved Casio/Sharp calculator permitted. A Boolean-identity table and the flip-flop excitation table are supplied with the paper and are used where needed.

Reference texts. M. M. Mano & M. D. Ciletti, Digital Design (6th ed.) — Boolean minimization, NAND/NOR realizations, K-maps, synchronous counters; J. F. Wakerly, Digital Design: Principles and Practices (5th ed.) — counters, PAL/PLA devices; C. Hamacher, Z. Vranesic, S. Zaky & N. Manjikian, Computer Organization and Embedded Systems (6th ed.) — CPU registers, endianness, stacks, parallel I/O; Motorola M68HC11 Reference Manual — big-endian storage, PUSH semantics, Port B addressing.