Introduction To 80386 Microprocessor p.pptx
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Introduction to 80386 80386 DX & SX Features of 80386 Internal Organization of 80386 Operating Modes of 80386 Registers A Component that iplements memory. A Electronic circuit that functions as the CPU of Computer. It is actually more advanced in terms of architectural design October 1985 Two versions 80386 DX 80386 SX
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Evolution of microprocessors
The document traces the evolution of microprocessors from the 1971 Intel 4004, the first commercially available microprocessor, through several generations of increasing capabilities. Early microprocessors had 4-8 bit architectures and contained only a few thousand transistors. The 1980s saw the rise of 16-bit processors like the Intel 8086 and 32-bit processors like Motorola's 68000. RISC architectures like the MIPS R2000 emerged in the 1980s with integrated caches and pipelines. By the early 1990s, microprocessors like the MIPS R4000 and Intel Pentium had transitioned to 64-bit architectures with over a million transistors enabling over 50 million instructions per second.
Evolution of microprocessors
The document traces the evolution of microprocessors from the early 4-bit Intel 4004 in 1971 to the 64-bit MIPS R4000 in 1991. It describes the key innovations of each generation including increased bit width, transistor count, and performance. The first generation from 1971-1978 had processors with less than 50k transistors and under 50k instructions per second. The second generation from 1979-1985 saw the introduction of 32-bit processors with over 50k transistors. The third generation from 1985-1989 included reduced instruction set computers with over 100k transistors. The fourth generation from 1990 onward introduced 64-bit architectures with over 1 million transistors and performance leadership.
8085
The document discusses the evolution of microprocessors from the Intel 4004 to the Intel Pentium IV. It begins with the first microprocessor, the Intel 4004 from 1971, and progresses through early 4-bit and 8-bit processors like the 8008, 8080, and 8085. It then covers the introduction of 16-bit processors like the 8086 and 32-bit processors such as the 80386, 80486, and various Pentium models. The document also includes block diagrams and descriptions of the architecture and features of the 8085 microprocessor.
8085
The document discusses the evolution of microprocessors from the Intel 4004 to the Intel Pentium IV. It begins with the first microprocessor, the Intel 4004 from 1971, and progresses through early 4-bit and 8-bit microprocessors like the 8008, 8080, and 8085. It then covers the introduction of 16-bit microprocessors like the 8086 and 32-bit processors such as the 80386, 80486, and various Pentium models. The document also includes block diagrams and descriptions of the architecture and features of the 8085 microprocessor.
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This document traces the evolution of Intel microprocessors from 1971 to present. It discusses each generation from the 4004 (4-bit) to the latest Intel i7 processors. Key details provided on each generation include the year of introduction, processing capabilities, memory capacity, and technological improvements over previous versions. The document shows how Intel microprocessors have progressed from 4-bit to 32-bit and 64-bit capabilities, with increasing speeds, memory capacity, and additional features with each new generation.
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The 80386 80486
The 80386 introduced 32-bit processing to the 8086 family, improving performance. It had multiple internal units that operated in parallel. The 80386 came in several versions, including the full 80386DX and reduced bus 80386SX. In protected mode, the 80386 supported virtual memory, multitasking, and memory protection through descriptor tables, paging, and privilege levels. New features like control registers and the task register enabled these protected mode capabilities.
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The document discusses the evolution of microprocessors from 1971 to 2002. It describes several generations of Intel microprocessors including the 4004, 8008, 8080, 8085, 8086/8088, 80186, 80286, 80386, 80486, Pentium, Pentium Pro, Pentium II, Pentium III, and Pentium IV. For each microprocessor, it provides the year of introduction, bits, memory capacity, clock speed, and key improvements over previous generations that expanded capabilities and performance. The document traces the technological progression from 4-bit to 32-bit processors over this time period.
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Evolution of microprocessors
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8085
The document discusses the evolution of microprocessors from the Intel 4004 to the Intel Pentium IV. It begins with the first microprocessor, the Intel 4004 from 1971, and progresses through early 4-bit and 8-bit processors like the 8008, 8080, and 8085. It then covers the introduction of 16-bit processors like the 8086 and 32-bit processors such as the 80386, 80486, and various Pentium models. The document also includes block diagrams and descriptions of the architecture and features of the 8085 microprocessor.
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The document discusses the evolution of microprocessors from the Intel 4004 to the Intel Pentium IV. It begins with the first microprocessor, the Intel 4004 from 1971, and progresses through early 4-bit and 8-bit microprocessors like the 8008, 8080, and 8085. It then covers the introduction of 16-bit microprocessors like the 8086 and 32-bit processors such as the 80386, 80486, and various Pentium models. The document also includes block diagrams and descriptions of the architecture and features of the 8085 microprocessor.
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This document traces the evolution of Intel microprocessors from 1971 to present. It discusses each generation from the 4004 (4-bit) to the latest Intel i7 processors. Key details provided on each generation include the year of introduction, processing capabilities, memory capacity, and technological improvements over previous versions. The document shows how Intel microprocessors have progressed from 4-bit to 32-bit and 64-bit capabilities, with increasing speeds, memory capacity, and additional features with each new generation.
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Microprocessors and microcontrollers both have CPUs and are used for real-time applications, but they differ in key ways. Microprocessors are standalone chips that require external memory and I/O devices, have higher clock speeds, and are more versatile. Microcontrollers integrate CPU, memory, and I/O on a single chip, have lower clock speeds, and are cheaper and used for embedded systems. The 8085 was an early 8-bit microprocessor from Intel that had 40 pins, accessed 64KB of memory, and was used in early PCs and instruments.
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The 80386 introduced 32-bit processing to the 8086 family, improving performance. It had multiple internal units that operated in parallel. The 80386 came in several versions, including the full 80386DX and reduced bus 80386SX. In protected mode, the 80386 supported virtual memory, multitasking, and memory protection through descriptor tables, paging, and privilege levels. New features like control registers and the task register enabled these protected mode capabilities.
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Processoer 80486
The Intel 80486 microprocessor was an upgrade from the 80386 with improved performance and new features. It had an on-chip cache, floating point unit, and clock doubling capabilities. There were several variants including the 80486DX with an FPU, 80486SX without an FPU, and clock doubled 80486DX2. It had a 5-stage pipeline allowing one instruction per clock cycle. The integrated floating point unit and cache improved performance significantly over previous Intel processors.
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The document discusses the history and evolution of microprocessors from early 4-bit designs like the Intel 4004 to modern 32-bit and 64-bit processors. It describes several important processors including the Intel 8008, 8080, 8085, 8086/8088, 80286, 80386, 80486, Pentium, and Pentium Pro. These processors enabled increasing memory addressing, speeds, functionality and applications over time. The document also introduces concepts like RISC architecture and cache memory.
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The document discusses the Intel 80286 microprocessor. It was introduced in 1982 as the 5th generation of Intel's x86 family. It had several improvements over the 8086 including a faster clock speed of 12.5MHz, more transistors at 125K, and an advanced memory management system. The 80286 could address up to 16MB of memory and had two operating modes: real address mode for compatibility and protected virtual address mode for multitasking. It also introduced the ability to use virtual memory in protected mode.
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The document describes the key features of several Intel processors from 80186 to Pentium Pro. Some main points:
- 80186 added internal clock generator, programmable interrupt controller, timers, DMA, and power save features.
- 80286 supported protected mode and virtual memory. 80386 added 32-bit registers and support for 4GB physical memory.
- 80486 added 8KB cache and new instructions. Pentium added dual cache and integer units. Pentium Pro added L2 cache on main board.
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The document provides information about the microprocessor 8085, including its pin configuration, functional blocks, interrupts, and history. It begins with an overview of the 8085 pinout and architecture, describing the functions of pins like crystal inputs, reset inputs/outputs, and serial I/O pins. It then covers the different types of interrupts the 8085 can receive, such as TRAP, RST, and INTR interrupts, and how interrupts are prioritized and handled. The document concludes with a brief timeline of Intel microprocessor developments from the early 4004 to multi-core 64-bit processors.History Of Microprocessors
This presentation was made for the subject of computer architecture and organisation for the understanding of evolution of microprocessors and their configurations
Microprocessor evolution
A microprocessor is an electronic component that is used by a computer to do its work. It is a central processing unit on a single integrated circuit chip containing millions of very small components including transistors, resistors, and diodes that work together. Some microprocessors in the 20th century required several chips. Microprocessors help to do everything from controlling elevators to searching the Web. Everything a computer does is described by instructions of computer programs, and microprocessors carry out these instructions many millions of times a second. [1]
Microprocessors were invented in the 1970s for use in embedded systems. The majority are still used that way, in such things as mobile phones, cars, military weapons, and home appliances. Some microprocessors are microcontrollers, so small and inexpensive that they are used to control very simple products like flashlights and greeting cards that play music when you open them. A few especially powerful microprocessors are used in personal computers.
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The document summarizes the evolution of several important Intel microprocessors from 1971 to the 1980s. It describes the key specifications and innovations of the Intel 4004, 8008, 8080, 8085, 8086/8088, 80286, 80386, and 80486 microprocessors, including their transistor counts, data bus widths, addressing capabilities, and the introduction of features like protected mode, virtual memory management, 32-bit registers and operands, and paging. Overall, it traces the progression from early 4-bit and 8-bit processors to later 16-bit and 32-bit designs with increasing performance, memory addressing, and instruction sets.
Introduction micropro1st-unit-200828175753.pdf
This document discusses the EC501 Microprocessor and Its Applications course. It provides an overview of reference books, course units on microprocessor evolution and features, and an introduction to the 8086 microprocessor including its register organization, addressing modes, and flag register. The professor, Ashish Verma, will be teaching about microprocessors including the 8086, 8088, 80186/286/386/486, and Pentium.
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Architecture, signal description of 8086,minimum mode 8086 systems and timings and maximum mode 8086 systems and timings
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- 1. INTRODUCTION TO 80386 MICROPROCESSOR - Submitted By- Prasenjit Chandrakant More Rajesh Santosh Walke
- 2. INDEX • Introduction to 80386 • 80386 DX & SX • Features of 80386 • Internal Organization of 80386 • Registers
- 3. INTRODUCTION • A Component that iplements memory. • A Electronic circuit that functions as the CPU of Computer. • October 1985 • Two versions • 80386 DX • 80386 SX
- 4. 80386 DX & SX • October 1985. • 32 Bit Address Bus. • 32 Bit Data Bus. • Packaged in 132 Pin PGA. • Address 4 GB of Memory. • Original 80386 is DX. • 1988 • 24 Bit Address Bus. • 16 Bit Data Bus. • 100 Pin flat Package. • 16 MB of Memory • The Internal Architecture of both DX and SX are same.
- 5. FEATURES OF 80386 • 32 Bit Microprocessor. It has 32 bit ALU. • 4 GB of Physical Memory. • 64 TB of Virtual Memory. • Integrated Memory Management Unit. • 32 bit data bus and 32 bit address bus. • It offers a 3 stage pipelining. • Multitasking. • Protection Mechanism. • Hardware Debugging Support.
- 6. INTERNAL ORGANIZATION OF 80386 • 80386 Was Organised As Six Stages : • Bus Interface Unit • Instruction Pre-Fetch • Instruction Pre-Decode • Execution Unit • Segmentation Unit • Paging Unit
- 7. ARCHITECTURE OF 80386 Segment Registers Segment Translator Translation Look aside Buffer Page Translator Prefetch Queue Prefetcher Decoder Instruction Queue Registers Barrel shifter Multiply/Divide ALU Bus Interface Page Unit Prefetch Unit Segment Unit Decode Unit Execution Unit Bus Unit
- 8. REGISTERS OF 80386 • 80386 has 32 registers which are grouped to 7 types. • General Purpose Registers. • Index Registers and pointers. • Segment Registers. • Flag Registers. • Control Registers. • Debug Registers. • Test Registers.
- 9. THANK YOU !