Reply to thread All DDR is SDRAM, and although usually in DIMM packages, SO-DIMM packaging is available. (I do not mean that DDR is the same as SRAM, of course.) I agree with you that 66MHz/64b is the native maximum; I am saying this is equivalent to 133MHz/32b. This means the logic to convert between 64b and 32b is inside the ARM already. I don't see how reducing memory latency below processor latency would help: The memory would be faster than the processor, and therefore only called at the maximum speed of the processor, ie wasted. With sufficient cache, a main store speed half that of the processor (if "single data rate" used) should be good enough, that is, increasing the speed of the memory to that of the processor would not double the overall system speed. Nonetheless, I may have confused references to the Iyonix's use of DDR with the Kinetic somewhere along the line. I don't see why the Kinetic can't use DDR, the question is if CTL intended it to be used. (And the answer to the question why didn't CTL run the memory at 133MHz instead of 66MHz, is that it was (if DDR used) already being accessed at that rate, clock speed regardless.) Anon on 19/1/09 3:39PM [ Reply | Permalink | Report ] Please login before posting a comment. Use the form on the right to do so or create a free account.

Search the archives Today's featured article RISC OS artist wows public with digital artwork A RISC OS-using artist has described exhibiting his digitally-created work in a public gallery as a "rewarding experience". Richard Ashbery, who used ArtWorks and Photodesk to create his images, showed off patterns and colourful illustrations to punters, who told him his work made a change from the oils and watercolour masterpieces usually exhibited.  1 comment, latest by socris on 18/11/08 4:23PM. Published: 17 Nov 2008 Random article RISC OS Memory Protection Corruption at the lowest levels  25 comments, latest by Jaco on 30/4/05 9:54AM. Published: 25 Apr 2005 Useful links News and media: Iconbar • MyRISCOS • ArcSite • RISCOScode • ANS • C.S.A.Announce • Archive • Qercus • RiscWorld • Drag'n'Drop • GAG-News Top developers: RISCOS Ltd • RISC OS Open • MW Software • R-Comp • Advantage Six • VirtualAcorn Dealers: CJE Micros • APDL • Castle • a4 • X-Ample • Liquid Silicon • Webmonster Usergroups: WROCC • RONE • NKACC • IRUG • SASAUG • ROUGOL • RONWUG • MUG • WAUG • GAG • RISCOS.be Useful: RISCOS.org.uk • RISCOS.org • RISCOS.info • Filebase • Chris Why's Acorn/RISC OS collection • NetSurf Non-RISC OS: The Register • The Inquirer • Apple Insider • BBC News • Sky News • Google News • xkcd • diodesign

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