Path: utzoo!attcan!uunet!husc6!purdue!mentor.cc.purdue.edu!mace.cc.purdue.edu!asd
From: asd@mace.cc.purdue.edu (Kareth)
Newsgroups: comp.sys.next
Subject: Re: DMA Channels: Where'd they go?
Keywords: dma
Message-ID: <5606@mace.cc.purdue.edu>
Date: 25 Sep 90 00:10:14 GMT
References: <5593@mace.cc.purdue.edu> <50950@brunix.UUCP>
Organization: Purdue University
Lines: 23

In <50950@brunix.UUCP> rca@cs.brown.edu (Ronald C.F. Antony) writes:

>In article <5593@mace.cc.purdue.edu> asd@mace.cc.purdue.edu (Kareth) writes:
>>
>>Okay, maybe I misunderstand something, or remember something wrong, so
>>just correct me if I'm wrong.
>>
>>But didn't there used to be 12 DMA channels on the NeXT Cube???
>>Now there are only 9!  Only 8 on the slab.  What happened to those 3 DMA
>>channels?

>Good question. I guess the difference between the slab and the cube
>lies in the missing OD support for the slab. But what happened to the
>3 others I can't tell.

Hmm, I wonder if it's bad form to answer my own question in a followup
to my message.

One of the guys here suggest that he believed that the missing channels
were due to the fact that the MMU, FPU, and cache which are all on the
040 now.

-k