All, Thanks Marco Antonio Simon Dal Poz <[EMAIL PROTECTED]>, the TC8566AF datasheet (which is the diskcontroller used by Panasonic MSX computers, including the MSX turbo R) is on my website.
http://www.msxnet.org/tech/
(pages are marked cachable for 24 hours, so you might need to reload the
page).
As far as I know, this datasheet wasn't available on the net before.
Sean
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