Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!brutus.cs.uiuc.edu!apple!oliveb!mipos3!cadev4!dbraun From: dbraun@cadev4.intel.com (Doug Braun ~) Newsgroups: comp.os.cpm Subject: Re: z280 hardware problem Keywords: dram timing Message-ID: <894@mipos3.intel.com> Date: 11 Sep 89 17:47:28 GMT References: <3876@cosmo2.UUCP> Sender: news@mipos3.intel.com Reply-To: dbraun@cadev4.UUCP (Doug Braun ~) Organization: Corporate CAD, INTeL Corporation, Santa Clara, CA Lines: 19 I, too would like to hear about hooking up DRAMS to a Z280. I currently have one using 128K of static RAM (32Kx8 chips) in 16-bit z280 mode, with burst mode working on a 5-HHz bus. I would like to go to a 10-MHz bus, but I would need to use static-column DRAMs (256Kx4 parts) to get enough speed. This system currently runs CP/M 3 with a 20 meg SCSI hard disk very well. If you are thinking of building a Z280 system, get in touch with me, and I can relate my experiences (and circuit diagrams, etc.) Doug Braun Intel Corp CAD 408 765-4279 / decwrl \ | hplabs | -| oliveb |- !intelca!mipos3!cadev4!dbraun | amd | \ qantel /