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Microcontro  Theory
Unit I ARCHITECTURE OF 8051 MICROCONTROLLER
Microprocessor-Microcontroller-Comparison of Microprocessor and
Microcontroller-Architecture diagram of Microcontroller 8051-Functions

of each Block-Pin details of 8051-ALU-Special Function Registers-
Program Counter-PSW Register-Stack I/O Ports-Timer-Interrupt-Serial

Port-External memory.

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Unit II 8051 INSTRUCTION SET AND PROGRAMMING
Instruction set of 8051-Classification of 8051 Instructions-Data

Transfer Instructions-Arithmetic Instructions-Logical Instructions-
Branching Instructions-Bit Manipulation Instructions – Different

Addressing Modes of 8051-Time Delay routines.
Assembly Language Programs – 16 Bit Addition -8 Bit Multiplication –
BCD to HEX Code Conversion- Smallest number.

12

Unit III PERIPHERALS OF 8051
I/O Ports – Bit Addresses for I/O Ports-I/O Port Programming-I/O bit
Manipulation Programming.

Timer/Counter – SFRS for Timer- Modes of Timers/counters-
Programming 8051 Timer (Simple programs).

Serial Communication – SFRs for Serial Communication-RS232
Standard-8051 Connection to RS 232-8051 Serial Port Programming
Interrupts – 8051 Interrupts-SFRs for interrupt-Interrupt priority
Interfacing Techniques

12

Unit IV INTERFACING TECHNIQUES
IC 8255-Block diagram-Modes of 8255-8051 interfacing with 8255
Interfacing – Relay interfacing- Sensor interfacing -Seven Segment LED
Display Interfacing – LCD Interfacing-Keyboard Interfacing-Stepper
Motor interfacing-ADC Interfacing- DAC interfacing – DC motor
Interfacing using PWM.

12

Unit V ADVANCED MICROCONTROLLERS
Arduino- General Block diagram- Features-Applications
IoT- Introduction to IoT-Architecture of IoT- IoT Services and
Applications – IoT Ethics.

12
TOTAL HOURS 60