16-Peripheral Component Interconnect(PCI)

16-Peripheral Component Interconnect(PCI) - Overview of...

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Unformatted text preview: Overview of Peripheral Component Interconnect (PCI) Presenter Tathagata Bhattacharjee Tathagata Bhattacharjee 2 Expansion Cards Expansion cards are the small circuit boards that you put into slots on the motherboard that make do additional work. Such cards are video cards, sound cards, modems, image capture cards, etc. Video Card Tathagata Bhattacharjee 3 Slots Industry Standard Architecture (ISA) Enhanced Industry Standard Architecture (EISA) Micro Channel Architecture (MCA) Video Electronics Standard Association (VESA) Peripheral Component Interconnect (PCI) Personal Computer Memory Card International Association (PCMCIA) Tathagata Bhattacharjee 4 Industry Standard Architecture (ISA) This was the most widely used bus, because it is the original. If you open up an old 286, you'll see a couple of these. An 8-bit ISA slot is capable of 0.625MB/sec. transfer rate between the card and the motherboard. Tathagata Bhattacharjee 5 Later versions of this bus were 16-bit, capable of 2MB/sec. This is still slow, but cards such as modems do not require anything faster than this. If you look at your motherboard's slots, the longer ones are the ISAs. Tathagata Bhattacharjee 6 Enhanced Industry Standard Architecture (EISA) This type of bus is not used very often in desktop machines. It is used mainly in servers , or computers that host networks. With such a computer, the demands placed on its components are too big for ISA to handle. Tathagata Bhattacharjee 7 Also, the EISA bus is capable of bus mastering , which allows components attached to the bus to talk to each other without bothering the CPU. This feature is much like SCSI and speeds up the computer quite well. Tathagata Bhattacharjee 8 Micro Channel Architecture (MCA) Not too common either, this bus was created by IBM. It is 32-bit, like EISA, but you can't stick ISA cards into it. MCA was capable of bus mastering, plus it could look at other devices plugged into it and identify them, leading to automatic configuration. MCA also produced less electrical interference, reducing errors. MCA is history. Don't get it now-a-days. Tathagata Bhattacharjee 9 Video Electronics Standard Association (VESA) This is a very fast interface made up mainly for fast video cards. Videos and graphics require much speed. The VESA-Local Bus, or VL-Bus, is connected straight to the CPU's own internal bus, hence the name "local". This bus can transfer data at 132MB/sec. VESA buses are basically an ISA slot with an extra slot on the end. The whole thing is about 4 inches longer than an ISA slot. Tathagata Bhattacharjee 10 Peripheral Component Interconnect (PCI) This is the other very fast bus developed by Intel....
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This note was uploaded on 07/15/2011 for the course ECO 2023 taught by Professor Mr.raza during the Summer '10 term at FAU.

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16-Peripheral Component Interconnect(PCI) - Overview of...

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