Re: 264 series questions

From: Nicolas Welte (
Date: 1999-10-06 23:12:36

Levente Hársfalvi wrote:
> I don't know if it's gated; the CS' logic is programmed into a GAL and I
> really don't know if it pays attention to sync with Phi2.

Ah, so there is probably lots of gating inside the GAL ;-) In my opinion
the SID belongs to the C64 anyway and I don't care much about
alternative uses like the Plus/4, the SIDstation and the HardSID. I even
find it _extremely_ strange that CBM used in the B series! But, how much
is such a Plus/4 SID cart and does it come with or without SID?

> Finally, I found a more obvious example that could be examined easier.
> This is the interface plug of the 1551 floppy drive. It is in fact a
> small interface card that connects to the expansion port, with a 6523
> TIA that handles all tasks of data communication. The firm should have
> also solved problems (if occured) when designing this board.

I don't have a 1551 myself. The only one I ever saw belonged to a
friend, but I think she stopped using her Plus/4 setup when I sold her a
C64 with 1541 and Speeddos. Unfortunately both setups dissapeared in a
very sad way, and we all don't really want to know the details.


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