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From: panisset@mcgill-vision.uucp (Jean-Francois Panisset)
Newsgroups: comp.arch,comp.sys.misc
Subject: Motorola DMA controllers
Keywords: motorola dma
Message-ID: <1990Jan30.145337.1837@larry.mcrcim.mcgill.edu>
Date: 30 Jan 90 14:53:37 GMT
Sender: news@larry.mcrcim.mcgill.edu (Usenet File Owner)
Reply-To: panisset@larry.mcrcim.mcgill.edu (Jean-Francois Panisset)
Organization: McGill Research Centre for Intelligent Machines
Lines: 24


I am looking for information about a 32-bit Motorola-compatible DMA 
controller. I have been using the 68450 4-channel DMAC in my design, but
the kludges needed to generate 32-bit transfers are quite ugly. Does
anyone have information about the Motorola 68442? It appears to be
a real 32-bit DMA controller, but does it have 4 channels?
Also, does anyone know of any third-party devices which might do the
trick? (i.e. 32-bit, 4 channels). I am looking for a "Motorola-compatible"
part, since this DMAC will live on a VME board (I know Intel has some
good DMACs, but getting an Intel part to work on a VMEbus...)

Thank you in advance...

(P.S. I was not sure of which newsgroup to post this to: if anyone has
a better idea, please send me mail...)




--
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Jean-Francois Panisset                       "Oui Allo!"
INET: panisset@larry.mcrcim.mcgill.edu       Madame Brossard, 1988
UUCP: ...!mcgill-vision!panisset