Re: Putting a RAM chip in U36 on a C128

From: Spiro Trikaliotis (
Date: 2002-08-21 22:00:12


MagerValp wrote:

> >>>>> "ST" == Spiro Trikaliotis <> writes:

> ST> selected. If the CS is not generated on write, the R/W logic is
> ST> not that simple anymore.
> Ah, major gotcha. Yep, doesn't work, back to the drawing board :)

anyway, why not generate the CS on our own? We can CS when we get a
CS from the PLA, or if it is a write and it goes to a specific area
which we can decode on our own. IMHO, it does not matter if "normal" 
RAM is written, too, since an update of the battery-backed RAM should
not be that often, should it? Anyway, any area you find to be decodable
ease can be choosen.

Just more thoughts,

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