[Coco] FW: CoCO EPROM -- 32K test??

Darren A mechacoco at gmail.com
Sat Dec 13 14:39:32 EST 2014


On Sat, Dec 13, 2014 at 11:54 AM, Chad H <chadbh74 at hotmail.com> wrote:

> Well that sucks. But I guess if the CoCo 2 could be made to access 32k
> blocks of cartridge ROM someone would have already done it.



The CoCo 1 and 2 can access 32K cartridge ROM, but it would require the
addition of an address decoding circuit on the cartridge. You would need to
decode the additional 16K (8000-BFFF) and assert the SLENB* cartridge pin
to override the internal ROM selection.

Darren


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