Article View: comp.arch
Article #2223Re: 29K
From: Phil Ngai
Date: Thu, 14 Sep 1989 00:48
Date: Thu, 14 Sep 1989 00:48
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1202 bytes
In article <624@unicads.UUCP> les@unicads.UUCP (Les Milash) writes:
|also this chip works well with the vram trick, fetching inst's out of the
|vram's serial port, except it looks like they're gonna be faster than vrams
|pretty soon; they're already interleaving vrams.
But note that Toshiba's 256K x 4 VRAMs can shift at 25 ns. This can at
least take you up to 25 MHz with very little effort. (making the shift
clock takes another 7-10 ns)
What if someone made a VRAM from SRAM? With a smarter shift clock?
--
Phil Ngai, phil@diablo.amd.com {uunet,decwrl,ucbvax}!amdcad!phil
"In the West, the only waste of water is not to use it."
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!mailrus!wuarchive!brutus.cs.uiuc.edu!apple!oliveb!amdahl!amdcad!diablo!phil From: phil@diablo.amd.com (Phil Ngai) Newsgroups: comp.arch Subject: Re: 29K Keywords: my *new* favorite chip :-) Message-ID: <27242@amdcad.AMD.COM> Date: 14 Sep 89 00:48:52 GMT References: <21936@cup.portal.com> <7851@cbmvax.UUCP> <27133@proton.mips.COM> <624@unicads.UUCP> Sender: news@amdcad.AMD.COM Reply-To: phil@diablo.AMD.COM (Phil Ngai) Organization: Advanced Micro Devices, Inc. Sunnyvale CA Lines: 14