Learn Microcontroller 8051 from basics to advance

Name: Learn Microcontroller 8051 from basics to advance
Rating: 4.7 (30 reviews)

Microcontrollers

Created byAmdoor Srinivas

Last updated 4/2024

English

English [Auto],

What you'll learn

On completion of this course student will describe the architecture of 8051and the organization of 8051 microcontroller
On completion of this course student will Identify the Instruction set and addressing modes of 8051 microcontroller
On completion of this course student will Develop programming skills in assembly language
On completion of this course student will Explain the need for different interfacing devices.

Course content

3 sections • 17 lectures • 3h 54m total length

Introduction and features of 805117:21
Explore the 8051 microcontroller basics, including its Harvard architecture, eight-bit cpu with alu, ram and rom memory, 32 bidirectional io lines, two 16-bit timers, and uart serial communication.
Bus structure12:35
Explore bus structure of microprocessors and microcontrollers, including address buses, data buses, and control buses, and how the 8051 uses 16 address lines and 8 data lines for memory access.
Block diagram of 8051 microcontroller9:37
Explore the 8051 microcontroller block diagram, detailing the CPU, 8-bit ALU, registers, 4 kb ROM, 128 bytes RAM, four IO ports, timers, UART, and five hardware interrupts at 11.0592 MHz.
Registers of 805110:18
Learn the 8051 register organization, focusing on the eight-bit accumulator and b register, their roles as ALU results, and how higher and lower bytes are stored during multiplication.
Registers of 8051_0216:10
Understand how the 8-bit program status word in the 8051 stores seven flags—four status flags and three control flags for instruction results and register bank selection.
Registers of 8051_035:28
Explore the 8051 flag status: auxiliary carry, carry, parity, and overflow flags, their roles in BCD and signed operations, plus rs1/rs0 bank selection and the default bank zero.
Registers of 8051_0410:04
Learn how the 8051 uses the eight-bit stack pointer to track the top of the stack. See how the 16-bit program counter and data pointer address memory during subroutine calls.

Harvard and Princeton architecture12:37
Explore memory organization in the 8051 microcontroller by contrasting Harvard architecture with von Neumann, and detailing internal and external data and program memories.
Internal RAM structure of 8051 microcontroller21:59
Explore the 8051 internal ram structure: 128 bytes from 00h to 7fh, with default bank zero, four register banks, and bit-addressable and available registers.
On-chip ROM and external memory14:54
Explore the 8051 memory architecture, including on-chip 4 kB program memory with 12 address lines and 8 data lines, and 64 kB external program and data memory under Harvard architecture.
Pin diagram of 805120:06
Explore the 8051 pin diagram in a 40-pin dip package, detailing port 0–3, reset, interrupts, clock pins, and multiplexed address/data lines with the address latch enable and external memory selection.
Input and output ports of 805112:42
Explore the 8051's four bidirectional ports delivering 32 io lines, with port 0's open collector design that multiplexes lower order address lines a0-a7 and data lines d0-d7 via ALE.
Location of special function registers in 805118:20
Explore the 8051 memory map, detailing internal ram size and the location of special function registers, including a, b, psw, sp, dptr, pc, and p0-p3.

Parallel and Serial data transfer11:38
Explain serial and parallel data transfer in the 8051 microcontroller, detailing transmitter and receiver roles, clock pulses, and usb as a widely used serial transfer method.
Synchronous and asynchronous data transfer16:22
Explore types of serial data transfer—simplex, half duplex, and full duplex—and how 8051 microcontroller uses full duplex asynchronous UART with separate TXD and RXD lines for bidirectional communication.
SCON and SBUF register function17:37
Explain the 8051 serial control register and serial buffer register, detailing how scon and sbuf manage asynchronous serial communication and mode selection from mode zero to mode three.
PCON Register6:14
Explore 8051 pcon register, 8-bit power control register, that selects power down and idle modes and sets baud rate via s mode with gf1 and gf0 as general purpose flags.

Requirements

Basic knowledge of electronic devices and Digital electronics like Combinational and sequential circuits

Description

8051 microcontroller was designed in 1981 by INTEL. In this course I am going discuss difference between microprocessor and microcontroller. 8051 microcontroller is designed by Intel in 1981. It is an 8-bit microcontroller. It is built with 40 pins DIP (dual inline package), 4kb of ROM storage and 128 bytes of RAM storage, 2 16-bit timers. It consists of are four parallel 8-bit ports, which are programmable as well as addressable as per the requirement. An on-chip crystal oscillator is integrated in the microcontroller having crystal frequency of 11.0592MHz.

Basic structure of ALU and registers. Block diagram of 8051 microcontroller. register organization of 8051 microcontroller, pin diagram of 8051 microcontroller. Function of special registers, Addressing modes and Instruction set of 8051 microcontroller.

Assembly language Programming, Memory interfacing, Interfacing with peripheral ICs 8251- serial I/O, 8255-parallel I/O ( The 8255A is a general purpose programmable I/O device designed to transfer the data from I/O to interrupt I/O under certain conditions as required. It can be used with almost any microprocessor.

It consists of three 8-bit bidirectional I/O ports (24I/O lines) which can be configured as per the requirement.) ,

8257-DMA( DMA stands for Direct Memory Access. It is designed by Intel to transfer data at the fastest rate. It allows the device to transfer the data directly to/from memory without any interference of the CPU.

Using a DMA controller, the device requests the CPU to hold its data, address and control bus, so the device is free to transfer data directly to/from the memory. The DMA data transfer is initiated only after receiving HLDA signal from the CPU.) ,

8259 PIC( The 8259 is known as the Programmable Interrupt Controller (PIC) microprocessor. This chip combines the multi-interrupt input source to single interrupt output. This provides 8-interrupts from IR0 to IR7.

The 8259A was the interrupt controller for the ISA bus in the original IBM PC and IBM PC AT. By connecting 8259 with the CPU, we can increase the interrupt handling capability. ),

8251 USART, serial communication and types of serial communication. 8051 microcontrollers have 4 I/O ports each of 8-bit, which can be configured as input or output. Hence, total 32 input/output pins allow the microcontroller to be connected with the peripheral devices.

Input Configuration

If any pin of this port is configured as an input, then it acts as if it “floats”, i.e. the input has unlimited input resistance and in-determined potential.

Output Configuration

When the pin is configured as an output, then it acts as an “open drain”. By applying logic 0 to a port bit, the appropriate pin will be connected to ground (0V), and applying logic 1, the external output will keep on “floating”. 8051 has 5 interrupt signals, i.e. INT0, TFO, INT1, TF1, RI/TI. Each interrupt can be enabled or disabled by setting bits of the IE register and the whole interrupt system can be disabled by clearing the EA bit of the same register.

Who this course is for:

Beginners electronic circuits developer
Engineering students

Learn Microcontroller 8051 from basics to advance

What you'll learn

Explore related topics

Course content

Introduction7 lectures • 1hr 22min

Memory organization of Microcontroller6 lectures • 1hr 41min

Serial Communication of 80514 lectures • 52min

Requirements

Description

Who this course is for: