Re: 65C816 adapter for 6502 computers (aka Apple II)

[mjmahon@aol.com (Michael J. Mahon)]

Steven N. Hirsch wrote:

>Michael J. Mahon wrote:
>
>> Very interesting.  I've recently encountered my first card that relies
>> on the RDY line for synchronization, so I'm quite curious about the
>> details on this (now diving into manuals...).
>
>I have a Taurus 8-inch diskette controller which uses RDY to synchronize 
>double-density data rates with the 6502 CPU.  Which card are you looking at?

The uSPEED floating-point accelerator card.

Since I have a Zip Chip in my //e, the RDY line on my machine
is already non-functional, which is what led me to reverse-engineer
the card.

For testing, I am able to simply access it _slowly_, but that isn't
practical for actually using it.  ;-)

-michael

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