[Coco] J&M Controller Manual request

[David Ladd]

I am looking for the manual to the J&M Systems Disk Controller.  I
recently got my controller fixed and am trying to figure out the
memory map of the parallel port on it so I can try to make a cable to
make use of it and to also make sure that it doesn't overlap with any
other carts I want to use.

Thanks for any help if anyone has  PDF for this controller.