[Coco] 64K Coco mode and the MC6883

[RETRO Innovations]

On 3/28/2023 12:17 AM, RETRO Innovations via Coco wrote:


I also think S=7 is the "don't select anything" choice.  Routing another 
pin to disable the 74ls138 would have pushed over the pin limit, and if 
they only needed 7 decodes, the 8th could be the "don't use this" decode.

Jim


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