At 20.40 11/03/2004 -0500, you wrote:
>> >        I don't really see you being able to do with JUST a PIC, perhaps
>> >with one
>> >of the REALLY high pin count 18F parts out there. Off hand, for PCI, you
>> >need 32 wires for the AD bus, 5? wires for the transaction type
>> signals, and
>> >a few more (i.e. FRAMEB, DEVSEL, etc.)
>> >
>> >        Aside from that it isn't too much of a problem, from a hardware
>> >point of view.
>>
>> I'm not sure about that. IIRC the PCI specs, you've to respond to a bus
>> request in one cycle. Then you can put wait states to take the time you
>> need to satisfy the request.
>>
>> But address decoding should be fast.. and that can't be done with a PIC,
>> given the 33 MHz speed of the PCI bus.
>
>        The OP, AFAIK, is thinking of creating his own PCI bus, so no need
>to run at 33MHz, no need to decode addresses, just generate bus cycles.

Yes, you're right. I was tuned to think more in terms of standard 33 MHz bus
because it's tough to transfer video in realtime with a PIC. ;)

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