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  • Bus mastering for Idiots wanted.

    With all the busmastering talk and etc, how is it implemented on a PCI/AGP bus PC?

    Can you have more than one Bus master on a bus is the AGP and PCI the same bus, etc.

    Or is there a great but simple web page to explain this.

    thanks

  • #2
    Here's an excerpt from a PC Hardware FAQ at: http://www.pa.msu.edu/~wilkinson/faq/pc_hardware.txt

    It's rather old, and doesn't specifically mention the PCI or AGP bus, but the basic concepts still apply.

    Bus mastering is the ability of an expansion (ISA/EISA/VLB/MCA/etc)
    card to directly read and write to main memory. This allows the CPU
    do delegate I/O work out to the cards, freeing it to do other things.


    You can have multiple bus mastering cards in your computer, but some motherboards have one PCI slot that doesn't support bus mastering.
    If you put a bus master capable card in that slot it almost always will still work, just not to its full potential.

    There must be a good website out there with better info, anyone else want to jump in on this?

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    • #3
      <a href="http://www.entechtaiwan.com/files/pcilist.exe">PCIList</a> will tell you what cards are mastering the bus.

      _
      B


      [This message has been edited by Buuri (edited 20 October 1999).]

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      • #4
        Someone who wants to hijack an electric bus without the knowledge how to disable the power??

        Jorden.
        Jordâ„¢

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        • #5
          well im sure there are lots of schools out there that will teach you how to master a bus (school buses, city transit buses, oh and you can go to england and learn to master those dubble decker jobers ! fun....

          well what do you expect with a title like bus mastering for idiots ?

          ------------------
          EVIL IS GOOD. EVIL IS LIVE SPELLED BACKWARD AND WE ALL WANT TO LIVE RIGHT ?
          INTEL EVIL INSIDE, INTEL SPYCHIP INSIDE

          [This message has been edited by merchant2112 (edited 22 October 1999).]
          msi 6167 mobo k7 500 wk41 now at 650. 256 meg ram ,addtronics case w 250watt sp power supply, matrox g400, maxtor diammax 2500+ 10gig hd,10x aopen slot dvd, 3com 10/100 nic, sb live xgamer sound card, efecent networks dsl modem, dlink 701i dsl router/firewall, lots of controlers (joystick throttle rudder raceing wheel), 19in ctx monitor, logitech mouseman wheel usb, and klipsch promedia v2-400 speakers. win98 oem and win2k pro dual boot.

          noel
          it's times like this that make me think of my fathers last words....

          Don't son that gun is loaded.

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          • #6
            bust mastering? Breasts or trophies? (some breasts ARE trophies)

            ------------------
            k6-3 450 - tyan 1590s bios 1.16 - wdac310100 - g200 mill sgram w/8mb upgrade & bios 2.6-20 PD 4.51 (all software disabled) - AGP1x - 128MB 10ns sdram - sblive value 2.1 - 3com 3c905b-tx - cable access (28.8k for emergencies) - win98 service pack 1 + 2
            dx7

            abit kt7-raid athlon 1ghz quantum 20.4gb - 7200 + wd 200bb - 7200 rpm UDMA100-
            g400 max-
            256MB pc133 sdram - sblive value 3.0 - 4 Boston Acoustics A40's - 3com 3c905b-tx - cable access - winME
            dx7.?- V3 steering wheel/pedals - MS sidewinder PRO
            Kensiko (Netpointe) scrolling mouse

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