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Path: utzoo!watmath!clyde!ima!mirror!datacube!berger
From: berger@datacube.UUCP
Newsgroups: comp.sys.mac
Subject: Apple-NU bus to VMEbus adapter?
Message-ID: <105800002@datacube>
Date: Wed, 28-Jan-87 15:13:00 EST
Article-I.D.: datacube.105800002
Posted: Wed Jan 28 15:13:00 1987
Date-Received: Sat, 31-Jan-87 06:20:44 EST
Lines: 25
Nf-ID: #N:datacube:105800002:000:1006
Nf-From: datacube.UUCP!berger    Jan 28 15:13:00 1987


Ok, so the new mac's are going to use a modified form of the NU bus
for their expansion slots.  Does anyone have or is working on producing
a Apple-NU bus to VMEbus adapter?  

This could be a two card system, one card is of the Apple-Nu bus type
and would plug into the new Mac slots, the card would be a VMEbus card
and would plug into the VME card cage. Some form of robust cable would
then connect the two cards.  A range of memory accesses by the Mac cpu
would transparently map to a range of addresses on the VMEbus.

It would be nice if transfers could also go the other way, a VMEbus master
could access chunks of the Mac Memory.

If anyone is working on such a beast, we would be interested in volume
purchase as an OEM.

Please send any info to me via EMail.

				Bob Berger 

Datacube Inc. Systems / Software Group	4 Dearborn Rd. Peabody, Ma 01960
VOICE:	617-535-6644;	FAX: (617) 535-5643;  TWX: (710) 347-0125
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