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From: weaver@prls.UUCP (Michael Gordon Weaver)
Newsgroups: comp.sys.m68k,comp.sys.atari.st,comp.sys.amiga
Subject: Re: the 68070 - has it left hyperspace yet?
Message-ID: <3584@prls.UUCP>
Date: Fri, 8-May-87 20:33:43 EDT
Article-I.D.: prls.3584
Posted: Fri May  8 20:33:43 1987
Date-Received: Sun, 10-May-87 00:59:36 EDT
References: <280@spectrix.UUCP>
Reply-To: weaver@prls.UUCP (Michael Gordon Weaver)
Followup-To: comp.sys.m68k
Organization: Signetics Microprocessor Division
Lines: 42
Keywords: 68070 Signetics Philips Microprocessor
Summary: Not quite yet
Xref: mnetor comp.sys.m68k:463 comp.sys.atari.st:3331 comp.sys.amiga:4644

In article <280@spectrix.UUCP> rmc@spectrix.UUCP (Russell Crook) writes:
>
> A long while ago, Electronics had a small item about the 68070 to be
> built by philips or signetics (I think). Recently, a couple of other
> articles in other trade journals have mentioned this chip, which was to be
> a 68000 + unspecified MMU + 1 or 2 serial ports + timer + ... for
> under 25$ U.S.
>

(NOTE: the following does NOT represent in any way the opinions of 
Philips or Signetics. For official information, contact Nelson 
Chan, Signetics (408) 991-3359. The following is from memory 
and may contain errors). 

The 68070 was designed by Philips with help from Signetics (Philips
owns Signetics). It will be sold by Signetics and Philips. It has 
not yet been sampled. I believe samples are expected before the end of
1987. The price will probably be quite a bit higher than $25 US at 
introduction time, although that might be a reasonable cost as the 
price erodes. Signetics is hoping to sell a lot of these, and any
follow-on products.

The 68070 is not a drop-in replacement for the 68000, it has too many 
pins. The bus is described as '68000 compatible' in Signetics liturature.
The MMU is a Philips/Signetics design and is not software compatible with
the Motorola MMUs.

Additional features are:

o 4 decoded interrupts
o decoded interrupt acknowlege
o 2 channel DMA controller
o 1 serial line 
o counter/timer


Michael Gordon Weaver
Usenet: ...pyramid!prls!weaver
Signetics Microprocessor Division
811 East Arques Avenue
Sunnyvale, CA 94088-3409
(408) 991-3450