Microprocessors and Microcontrollers BE(EE/EEE) 5th Upcoming topics

Unit-I: Microprocessor 8086Introduction to 16-bit 8086 microprocessors, architecture of 8086, Pin Configuration, interrupts, minimum mode and maximum mode, timing diagram, Memory interfacing. Comparative study of Salient features of 8086, 80286 and 80386.

Unit-II: Microprocessor 8086 programming Instruction set of 8086, Addressing mode, Assembler directives & operations, assembly and machine language programming, subroutine call and returns, Concept of stack, Stack structure of 8086, timings and delays

Unit-III: Input-Output interfacing: Memory Mapped I/O and Peripherals I/O. PPI 8255 Architecture and modes of operation, interfacing to 16-bit microprocessor and programming, DMA controller (8257) Architecture, Programmable interval timer 8254, USART 8251, 8-bit ADC/DAC interfacing and programming.

Unit-IV: Microcontroller 8051Intel family of 8 bit microcontrollers, Architecture of 8051, Pin description, I/O configuration, interrupts; Interrupt structure and interrupt priorities, Port structure and operation, accessing internal& external memories and different mode of operations, Memory organization, addressing mode, instruction set of 8051 and programming

Unit-V: 8051 Interfacing, Applications and serial communication8051 interfacing to ADC and DAC, Stepper motor interfacing, Tuner/ counter functions, 8051 based thyristor firing circuit, 8051 connections o tRS-232, 8051 Serial communication, Serial communication modes, Serial communication programming, Serial port programming in C

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8086 pins configuration

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8086 pins configuration The description of the pins of 8086 is as follows: AD0-AD15 (Address Data Bus):  Bidirectional address/data lines. These are low order address bus. They are multiplexed with data. When these lines are used to transmit memory address, the symbol A is used instead of AD, for example, A0- A15. A16 - A19 (Output):  High order address lines. These are multiplexed with status signals. A16/S3, A17/S4:  A16 and A17 are multiplexed with segment identifier signals S3 and S4. A18/S5:  A18 is multiplexed with interrupt status S5. A19/S6:  A19 is multiplexed with status signal S6. BHE /S7 (Output):  Bus High Enable/Status. During T1, it is low. It enables the data onto the most significant half of data bus, D8-D15. 8-bit device connected to upper half of the data bus use BHE signal. It is multiplexed with status signal S7. S7 signal is available during T3 and T4. RD  (Read):  For read operation. It is an output signal. It is active when...
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Architecture of 8086

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A   Microprocessor   is an Integrated Circuit with all the functions of a CPU. However, it cannot be used stand-alone since unlike a microcontroller it   has no memory or peripherals .  8086 does not have RAM or ROM inside it. However, it has  internal registers  for storing intermediate and final results and interfaces with memory located outside it through the System Bus.  In the case of 8086, it is a 16-bit  Integer processor  in a 40-pin, Dual Inline Packaged IC.  The size of the internal registers(present within the chip) indicates how much information the processor can operate on at a time ( in this case 16-bit registers ) and how it moves data around internally within the chip, sometimes also referred to as the internal data bus.  8086 provides the programmer with 14 internal registers, each of 16 bits or 2 bytes wide.  The main advantage of the 8086 microprocessor is that it supports Pipelining. 8086 Architecture M...
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Assignment Questions (Subject:- Microprocessor and Microcontroller)

  Microprocessor and Microcontroller Assignment Questions Instructions: ·          Solve any 8 questions in each section. ·          Make appropriate assumptions wherever necessary. Unit 1 1.       What is microprocessor? 2.       What is the difference between the microprocessor and microcontroller? 3.       Explain the register organization of 8086 4.       How many data lines and address lines are available in 8086? 5.       Explain briefly about the internal hardware architecture of 8086 microprocessor with a neat diagram 6.       What is the maximum memory size that can be addressed by 8086? 7.       Calculate the physical address for fetching the next instruction to be executed, in 8086? 8.  ...
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