Article View: comp.arch
Article #22105Motorola DMA controllers
From: Jean-Francois Panisset
Date: Tue, 30 Jan 1990 14:53
Date: Tue, 30 Jan 1990 14:53
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1547 bytes
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...) -- ---------------------------------------------------------------------------- Jean-Francois Panisset "Oui Allo!" INET: panisset@larry.mcrcim.mcgill.edu Madame Brossard, 1988 UUCP: ...!mcgill-vision!panisset
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!clyde.concordia.ca!mcgill-vision!mcgill-vision!panisset 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