The 8051 Microcontroller
Well known in this discipline to be the most concise yet adequate treatment of the subject matter, it provides just enough detail in a direct exposition of the 8051 microcontroller’s internal hardware components. This book provides an introduction to microcontrollers, a hardware summary, and an instruction set summary. It covers timer operation, serial port operation, interrupt operation, assembly language programming, 8051 C programming, program structure and design, and tools and techniques for program development. For microprocessor programmers, electronic engineering specialist, computer scientists, or electrical engineers.
Why Read This Book
You should read this if you need a compact, no‑nonsense reference to the 8051 family and want practical coverage of its internals, instruction set, timers, serial I/O and interrupt model. The book gets quickly to useful programming examples in both assembly and C so you can start writing and debugging firmware for legacy 8051-based designs.
Who Will Benefit
Students, firmware engineers, and hobbyists who are learning microcontroller basics or maintaining/working with legacy 8051-based hardware.
Level: Beginner — Prerequisites: Basic digital logic and familiarity with programming concepts (C or another high-level language helpful but not strictly required).
Key Takeaways
- Explain the internal architecture, pinout, memory model, and I/O structure of the 8051/MCS-51 family.
- Write and assemble simple to moderate programs in 8051 assembly language using standard addressing modes and instructions.
- Develop and debug firmware in C targeted to 8051 compilers, including common program/data memory models.
- Configure and use timers/counters, UART serial communication, and the interrupt subsystem effectively.
- Interface basic peripherals and perform I/O operations with memory-mapped and bit-addressable registers.
- Select and use common development tools (assemblers, compilers, simulators, and programmers) for 8051 development.
Topics Covered
- Introduction to Microcontrollers and the 8051 Family
- 8051 Pinout, Signals and System Overview
- Memory Organization and Addressing
- Instruction Set and Addressing Modes
- Assembly Language Programming Techniques
- C Programming for the 8051 (memory models, calling conventions)
- Timers and Counters
- Serial Communication (UART) and Baud Rate Generation
- Interrupts and Interrupt Programming
- Input/Output Ports and Peripheral Interfacing
- Program Structure, Design and Debugging Techniques
- Development Tools: Assemblers, Compilers, Simulators and Programmers
- Worked Examples and Short Applications
- Appendices: Instruction Summary, Opcode Tables, Reference Data
Languages, Platforms & Tools
How It Compares
Shorter and more concise than Mazidi et al.'s 'The 8051 Microcontroller and Embedded Systems' (which is more tutorial- and lab-oriented) and less project-focused than Predko's practical guides; MacKenzie is a compact reference and quick learning text.
