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Re: ECHO+ Card

Michael J. Mahon wrote:

> Given the unusual signal arrangement, my guess is that
> the original designer took the straightforward approach and
> used the other 6522 port for the bus controls, so that any
> timing arrangement could be created in software.

No need to guess, that is exactly the case.

-- 

Linards Ticmanis

 The Master said, "The business of laying on the colors follows the
preparation of the plain ground."