Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!ucbvax!bloom-beacon!eru!hagbard!sunic!ugle.unit.no!lise.unit.no!stigvi From: stigvi@Lise.Unit.NO (Stig Vidar Hovland) Newsgroups: comp.sys.atari.st Subject: Re: TT ram revisited Message-ID: <1991Jun10.145719.10708@ugle.unit.no> Date: 10 Jun 91 14:57:19 GMT References: <3590@sirius.ucs.adelaide.edu.au> Sender: news@ugle.unit.no Reply-To: stigvi@Lise.Unit.NO (Stig Vidar Hovland) Organization: University of Trondheim Lines: 14 |> From article , by meulenbr@cst.prl.philips.nl (Frans Meulenbroeks): |> |> > Also I found out that the TT ram is 100ns ram. I do not have any 68030 |> > doc handy, but with a 32 Mhz clock, I think at least one (and very maybe 2) |> > wait states will be required to access this memory. |> > Would it be technically feasible to replace this memory with faster |> > memory, and get rid of this wait state? Will 80 ns be enough to get rid |> > of the wait state, or should 60 ns be used?? |> If the cpu need to read data, it is done in burst modus. This means that the cpu reads the first long word in two cycles and the next three long words in three cycles. You will only speed up writing to memory if you replace the memory card with a faster one. There are some third party ram cards which are faster than Ataris, but I don't know nothing about these cards. Stig Vidar Hovland - stigvi@lise.unit.no