Re: Unknown Apple II board: "FLY BD"

["Ron Kneusel" <oneelkruns@hotmail.com>]

Michael J. Mahon wrote:
> I've always had a fondness for 6522-based cards (like the Mockingboard)
> since they have two counter/timers and two bi-directional parallel
> ports (plus handshake lines), and can generate interrupts.
>
> It's a very versatile card, and you can terminate the data cables (D1
> and D2) in any way that is useful for your purposes.
>
> Most 6522-based cards did not contain EPROMs (unless they were intended
> to interface with printers), but software is usually written for each
> specific purpose to which they are applied.
>
> A little tracing of address wires will usually confirm that the chip's
> 16 registers are mapped directly into the /DEVSEL space ($C0sx).

I believe you are correct as to the board's purpose.  But, why are
there two cables, each with 16 wires?  There is also an EPROM (or, what
I naively call an EPROM: has a little window on it presumably to erase
it?)

Can't seem to find anything about it online but it might be fun to play
around with if it works.  I have no idea where I got it or when.

Thanks for the info everyone!

Ron