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- Path: watnews.watson.ibm.com!kgold
- From: kgold@watson.ibm.com (Ken Goldman)
- Newsgroups: comp.sys.m68k
- Subject: Re: Cheap DMA controller
- Date: 20 Feb 1996 15:02:38 GMT
- Organization: IBM T.J. Watson Research Center
- Distribution: world
- Message-ID: <4gcnqe$m7c@watnews1.watson.ibm.com>
- References: <4ganqp$t3v@charnel.ecst.csuchico.edu> <4gcj6a$2os@zaphod.develcon.com>
- NNTP-Posting-Host: elena.watson.ibm.com
-
- dickg@develcon.com (Dick Ginther) writes:
- > Chris Hafey <chafey@ecst.csuchico.edu> wrote:
-
- > > I am looking for a cheap ( < $50) DMA controller for a 68000 based
- > >machine. We will only be using it to do block transfers so it doesn't
- > >need to be very complex. The motorolla (68450?) is hard to find,
- > >expensive and does much more than we need. Any ideas?
- >
- > I would also like some pointers for this. While the 683xx series
- > occasionally come with built-in DMA, what are us 68040/5102 users
- > going to do?
- >
-
- So you don't like the 68340 because you need the 68040. OK.
-
- I'm not that familiar with the 68302, but I think it has one DMA channel
- and hopefully a slave mode where the internal CPU can be disabled.
- And it's cheap. Check it out and let us know.
-
- The 68360 has two DMA channels and definitely can be run in slave mode,
- but it fails the cheapness test.
-
- --
- Ken Goldman kgold@watson.ibm.com
-