Path: utzoo!attcan!uunet!isc-br!hawk!wddami!wayned From: wayned@wddami.spoami.com (Wayne Diener) Newsgroups: comp.sys.m68k Subject: Re: What company makes the 68070? Message-ID: Date: 12 Oct 90 00:44:29 GMT References: <8b4BSYy00Uh7E2nmco@andrew.cmu.edu> <3375@wombat.UUCP> <47494@mcdchg.chg.mcd.mot.com> Sender: uueagle@hawk.isc-br.com (Eagle Proj UUCP login) Lines: 33 >In article <47494@mcdchg.chg.mcd.mot.com> michael@mcdchg.chg.mcd.mot.com (Michael Bodine) writes: >George Scolaro (george@wombat.UUCP) writes: >> In article <8b4BSYy00Uh7E2nmco@andrew.cmu.edu> rh2y+@andrew.cmu.edu (Russell E. Hoffman, II) writes: >> >Signetics make the 68070. It is roughly a 68000 clone with some on board >> Another 68k clone that uses the same core as Moto (2nd source) and is cmos >Hmmm...as long as you're bringing up alternatives, Motorola Semiconductor is >now making the first of a long series of 68000-core based, integrated cpus: >the 68300 line. They've got timers, dmas, async and synchronous communications >ports and protocols, all built into the chips. I believe the two announced >parts are the 68302 and the 68332. Check 'em out! >-- I just picked up my 68332 evaluation board this afternoon and got it running. It looks like it'll be a pretty good platform for evaluating the part. One problem I've noticed alread though, is that the internally generated chip selects for the on-board RAM use the pins that have the alternative functions ~BG, ~BR and ~BGACK. My first anticipated use for this thing was to try to interface it with the NCR 53C700 SCSI chip - which should become a bus-master for maximum speed. The documentation seems to indicate that you can work around this by adding additional off-board RAM and then disabling (wasting!) 32K x 16 worth of 35 nS static RAM! (And the documentation for making changes to the board are sketchy.) Does anyone from Motorola read this group? I would be delighted to find that I'm incorrect. -- |---------------------------------------------------------------| | // Wayne D. Diener | | // Spokane, WA | | \\ // E-mail reply to: | | \X/ To: isc-br!hawk!wddami!wayned@uunet.uu.net | |---------------------------------------------------------------|