Take a peek here:
http://microprocessor68000.tripod.com/
Under bus arbitration it gives a good explanation.
Also, I attached my library of documents I have. Just with these alone, an accelerator could be built inside a CPLD and real CPU easily.
Oh, if you do jump into making one for an SE, might be worth it to toss a SONIC chip on there and get ethernet too!
and maybe even address selection for flash ROM to do netbooting. haha. now I am getting carried away.
PAK68 Accelerator Schematics - c't 1987.pdf
AN944.pdf
LUCAS-11.pdf
http://microprocessor68000.tripod.com/
Under bus arbitration it gives a good explanation.
Also, I attached my library of documents I have. Just with these alone, an accelerator could be built inside a CPLD and real CPU easily.
Oh, if you do jump into making one for an SE, might be worth it to toss a SONIC chip on there and get ethernet too!
and maybe even address selection for flash ROM to do netbooting. haha. now I am getting carried away. PAK68 Accelerator Schematics - c't 1987.pdf
AN944.pdf
LUCAS-11.pdf