On Thu, 28 Sep 100 g.j.p.a.a.baltissen@kader.hobby.nl wrote: > I draw the SCH from papers Marko gave me. If you looked good, you only > saw ONE 2114. 1024*4 is a bit small for a 8 bit bus :) The one piece I'm > missing in your list is U5, a 6116. HW-guys know this is a 2048*8 RAM. But doesn't the UltiMax memory configuration in the C64 have 4 kilobytes of RAM ($0000-$0fff)? Or maybe the Commodore engineers thought that the 64 would be compatible enough; it wouldn't be necessary to map the addresses $0800-$0fff to $0000-$07ff. By the way, I'm going to Berlin for a few days (7th through 11th October). I noticed that Schaltungsdienst Lange, the place where our extremely bad copy of the UltiMax schematics originates, has an office there. I'll try to visit them and to see what else they have than the VC-10 schematics. Marko PS: dot.tcm.hut.fi has been renamed to dot.tml.hut.fi; there's no reason to send the messages twice. - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tml.hut.fi.
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