Peripheral Component Interconnect (PCI)

Satisfactory Essays
Peripheral Component
Interconnect (PCI)

Babak Kia
Adjunct Professor
Boston University
College of Engineering

ENG SC757 - Advanced Microprocessor Design

Why PCI?
The original PC bus developed by IBM in 1982 was
16 bits wide and operated at 4.77 MHz
This was known as the ISA bus, capable of transferring data at a whopping rate of 9 Mbytes per second!
Gradually peripherals such as video cards and hard drives required a higher bandwidth, and in
1992 Intel introduced the PCI bus standard to allow connected devices direct access to the system memory
It detached the speed of the peripheral bus from that of the memory, so even though today’s Front
Side Buses can run up to 800 MHz, the PCI devices can operate at their own independent speed What is PCI?
The Peripheral Component Interconnect is an interconnect bus developed by Intel in 1992 which runs at 33 MHz and supports plug-and-play
It allows high speed connection between peripherals, and from the peripherals to the processor Allows for transfer of data amongst peripherals independently of the processor
Found on many desktops, but not limited to them, the PCI bus is a 32 bit wide bus capable of transferring at data rates up to 132 MBytes per second A 66 MHz, 64-bit version is capable of transfer rates of up to 524 Mbytes/second

1

PC System Architecture
Northbridge is the chipset which interfaces with memory, PCI bus, level 2 caches,
Accelerated Graphics
Port (AGP), on the
Front Side Bus (FSB)
Southbridge is the chipset which handles the basic I/O such as
USB, serial, audio,
IDE devices and ISA bus PC System Architecture

2

PCI Bus Signals
AD[31:0] – Multiplexed
Address/Data
C/BE[3:0]# - Command/Byte
Enable
• 0110: Memory Read
• 0111: Memory Write

PAR – Parity, always driven as even for all AD[31:0] and
C/BE[3:0] signals
PCLK – PCI Clock, operates from DC (0 Hz) to 33 MHz
RST# - Reset

PCI Bus Signals
FRAME# - Driven by bus
master

You May Also Find These Documents Helpful

  • Good Essays

    PCI Compliance

    • 797 Words
    • 4 Pages

    processed with the simple swipe of a card or entry of account numbers faster than traditional checks and cash payments. Companies everywhere today are experiencing the advantages that come with this merchant service, like improved customer service and PCI compliance. A Better Customer Experience Superior credit card processing services can translate into a more positive customer experience overall in several ways. First of all, accepting a wide range of payments will show your dependability as a company…

    • 797 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    PCI DSS Compliance

    • 1344 Words
    • 6 Pages

    Executive summary This report outlines the history of the PCI DSS which came about from the emergence of the CISP and SDP that MasterCard and Visa have developed. This standard was then adopted by almost every major card brand; it is known as the Payment card industry security standard council and extends invites at a fee to become a member of the council which governs this standard. However research has been shown that less than half of Australia has adopted this standard and the even though this…

    • 1344 Words
    • 6 Pages
    Powerful Essays
  • Powerful Essays

    Proper Pci /Pcc

    • 1812 Words
    • 8 Pages

    CPL KELLY RYAN 10/17/11 Proper PCI’S/PCC’S Writing this essay about why conducting proper PCI’S and PCC’S are in important before every mission whether or not it’s an actual mission or training mission. Why do we have inspections? From long experience, the Army has found that some soldiers, if allowed to, will become careless and lax in the performance of minor barrack duties in their unit. They become accustomed to conditions in their immediate surroundings and overlook minor deficiencies…

    • 1812 Words
    • 8 Pages
    Powerful Essays
  • Better Essays

    Explain the hardware, software and peripheral components of a computer system and the functional relation between these components. Fig: functions of the operating systems (1) 1- Hardware Hardware consists of physical equipment of the computer. We distinguish equipment within the Case such as: Power supply: it is the equipment that receives electricity from a DC current and converts it to a alternative current AC for the needs of the computer. The power supply may depends on the motherboard…

    • 1626 Words
    • 7 Pages
    Better Essays
  • Powerful Essays

    Pci Quick Guide

    • 7658 Words
    • 31 Pages

    PCI Quick Reference Guide Understanding the Payment Card Industry Data Security Standard version 1.2 For merchants and organizations that store, process or transmit cardholder data Contents Copyright 2008 PCI Security Standards Council, LLC. All Rights Reserved. This Quick Reference Guide to the PCI Data Security Standard is provided by the PCI Security Standards Council to inform and educate merchants and other organizations that process, store or transmit cardholder data. For more…

    • 7658 Words
    • 31 Pages
    Powerful Essays
  • Satisfactory Essays

    PCI DSS Interviews

    • 363 Words
    • 2 Pages

    Good Day, PCI DSS Assessment Personnel Interviews will be conducted the week of October 31 through November 4, 2016. Most, if not all of you were selected by the External PCI Audit Team last year so I anticipate similar, if not the same this audit cycle. As soon as the Lead Auditor (QSA) confirms, I will communicate dates, times, and locations. In the meantime, please take a moment to review the Interview Preparation guidance below. For your convenience, intent this year is to conduct most interviews…

    • 363 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Pci Sdn Bhd

    • 499 Words
    • 2 Pages

    Recommend improvement of internal control weaknes * In Improving weakneses on the internal control PCI Sdn Bhd should develop more comprehensive Standard of Procedure on preparing Purchase transaction also the accounting preparer role treatment. Refer to the first problem occur where planning section should not easily give MMR to En.Razi without any proper authorization, there should be the MMR must be authorized by their head department first before sent to En. Razi to recheck the exactly amount…

    • 499 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Peripheral Neuropathy

    • 1376 Words
    • 6 Pages

    Neuropathy: Get the Facts on This Little-Known Nerve Disorder Neuropathy or peripheral neuropathy afflicts millions of people across this country. If you suffer from this disorder, your symptoms may include unexplained pain, tingling, numbness or muscle weakness. The symptoms will appear in the legs, feet, arms, hands and other parts of your body depending on the cause of it in a particular sufferer. When you first notice signs of the disorder, you should consult a doctor to receive a proper diagnosis…

    • 1376 Words
    • 6 Pages
    Good Essays
  • Good Essays

    Peripheral Nervous System

    • 3016 Words
    • 13 Pages

    Anatomy of Peripheral Nerves Peripheral nerves consist of fascicles that contain myelinated and unmyelinated axons. Endoneurium is the small amount of matrix that is present between individual axons. The perineurium is a sheath of special, fiber-like cells that ties the axons of each fascicle together. Epineurium is the connective tissue that surrounds the entire nerve trunk and gives off vascular connective tissue septa that traverse the nerve and separate fascicles from one another. | | Single…

    • 3016 Words
    • 13 Pages
    Good Essays
  • Satisfactory Essays

    Peripheral Vision

    • 401 Words
    • 2 Pages

    Peripheral Vision Peripheral vision is also known as Side vision. It is the ability to see objects and movement outside of the direct line of vision. Peripheral vision gives you the ability to pay attention to something even if your front vision is focus on something else. This kind of vision gives consumers the capacity to process information even if they are not aware that they are doing so, this process is called preattentive processing. When preattentive processing is occurring, the consumers’…

    • 401 Words
    • 2 Pages
    Satisfactory Essays