8086-Microprocessor-Architecture.ppt

8086-Microprocessor-Architecture.ppt - 8086-Microprocessor...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
8086-Microprocessor Architecture In 1978, Intel released its first 16-bit microprocessor- 8086. It executes the instructions at 2.5MIPS Execution time for one instruction is 400ns(1/MIPS). 8086 can address 1MB(1MB=2 20 bytes) of memory-20 bit address bus Width of the data bus is 16bits Feature- Small six-byte instruction queue Instruction fetched from the memory are placed before they are executed.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
8086-Microprocessor Architecture Functional block diagram of 8086, subdivided into the following two units: 1. Execution unit (EU) 2. Bus interface unit (BIU) Execution unit : It includes the ALU, eight 16-bit general purpose registers, a 16-bit flag register, and a control unit Bus Interface unit : It includes an adder for address calculations, four-16 bit segment registers(CS,DS,SS,ES), a 16-bit instruction pointer(IP), a six-byte instruction queue, and bus control logic
Image of page 2
8086-Microprocessor Architecture Components in BIU: Segment Register The Instruction pointer Address generation Register Bus control logic Instruction Queue Components in EU: Arithmetic logic Unit: ALU Status and control logic General purpose registers Temporary operand registers
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern