Course detail
Digital Circuits
FEKT-BPC-DIOAcad. year: 2025/2026
Fundamentals of digital circuits. VHDL language and general syntax. Concurrent statements, design methodology and examples. Logic hazards, their elimination and avoiding. Sequential statements, design methodology and examples. Metastability. State machine theory and design methodology. Translation of VHDL code to schematic representation (methodology understanding). Practical design of sequential systems and state machines.
Language of instruction
Number of ECTS credits
Mode of study
Guarantor
Department
Entry knowledge
- Describe the basic logic gates NAND, NOR, AND, OR, INV – logic functions, truth tables etc.
- Conversion from various number representations
- Describe CMOS technology process and how the NMOS and PMOS transistor work.
- Fundamentals of flowcharts and their utilization
Rules for evaluation and completion of the course
70 points for final exam.
The content and forms of instruction in the evaluated course are specified by a regulation issued by the lecturer responsible for the course and updated for every academic year.
Aims
Student will be able to:
- explain fundamentals of combinational and sequential circuits and how these circuits manually design
- describe digital circuits by using VHDL
- design state machines and their design and methodology
- draw the schematic representation from VHDL code
- explain synchronous circuit design methodology
Study aids
electronic texts, presentations, video tutorials
Prerequisites and corequisites
Basic literature
Kang, Yusuf Leblebici, Chulwoo Kim, CMOS Digital Integrated Circuits, 2019, ISBN 978-9353165093 (EN)
Pinker, J., Poupa, M., Číslicové systémy a jazyk VHDL, BEN - Technická literatura, 2006, ISBN: 80-7300-198-5 (CS)
Volnei A. Pedroni, Circuit Design with VHDL, third edition, 2023, ISBN 978-0262042642 (EN)
Recommended reading
Classification of course in study plans
Type of course unit
Lecture
Teacher / Lecturer
Syllabus
Laboratory exercise
Teacher / Lecturer
Syllabus
1. Introduction to the Xilinx ISE development environment, basic commands of the VHDL language
2. Basic logic gates, Boolean algebra, De Morgan's laws
3. Design of a BCD decoder for a 7-segment display, combinational logic
4. Design of a digital comparator, design of basic arithmetic operations, combinational logic, structural description
5. Solution of a complex task using combinational logic - Chemical tank
6. Sequential logic - RS flip-flop, D flip-flop, JK flip-flop, shift register
7. Sequential logic - design of asynchronous and synchronous binary counters, advantages and disadvantages, applications
8. Sequential logic - design of a complex BCD counter 0÷99, multiplexing of 7-segment display (dynamic mode), state machines
9. Sequential logic - debouncer, counters - reaction time measurement
10. Complex example - design of control logic for a simple vending machine - combinational + sequential logic (state machines)
11. Design of a 4-bit pulse width modulator, design of a sequential circuit, pulse width modulation
12. Credit week, evaluation