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8255 on PCI bus

Discussion in 'Electronic Design' started by Guest, Sep 12, 2004.

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  1. Guest

    Guest Guest

    I do not have much experience on PCI bus. I designed and used 8255 on many
    different ISA boards.
    Can anyone suggest how can I connect an (or couple of ) 8255 to a PCI bus in
    simplest possible way?
     
  2. Leon Heller

    Leon Heller Guest

    You might be able to use a PCI bridge chip like the ones from PLX to
    interface the 8255. You could also emulate the 8255 in an FPGA and put the
    PCI interface into it, as well. Designing the PCB might be the hardest part
    of the job due to the PCI interface requirements.

    Leon
     
  3. Pier Joursey wrote...
    Use a PCI-ISA bridge chip, like an Intel 82380AB or 82371SB, see
    http://www.intel.com/design/chipsets/datashts/290550.htm. Or the
    ISA-bridge function in an IP core for FPGA. Or a Super-IO chip,
    SMSC LPC47N227, http://www.smsc.com/main/datasheets/47n227.pdf

    Or purchase a pcb containing one of these devices, ready to go,
    with drivers and instructions...
     
  4. Rick Cassidy

    Rick Cassidy Guest

    I found a Great PCI-DIO card on Ebay for $30. It has 6 bytes I/O...I'm
    multiplexing it into a bunch more, but you might be better off going that
    route.

    Rick-
     
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