on 12/16/99 4:15 AM, Toru Nishimura at nisimura@itc.aist-nara.ac.jp wrote:

>> Just curious as to if anyone is working on ISDN/Audio and/or FD support
>> for the Personal DECstations. I've got Ultrix 4.5, running NetBSD 1.4P
>> (1.4.1 base), and DECstation Linux available. I'm no programmer yet, but
>> I'll do what I can for coding/testing/finding docs.
> 
> You need to understand how to manipulate IOASIC DMA engine.   Currently
> only one (simplex, bidirectional) DMA channel is used out of 8.
> 
> Tohru Nishimura
> 

    Yikes, only one DMA channel is running the entire system? I remember not
being able to find a free DMA channel with Windoze. Is there any speculation
on what future DMA needs/wants are? I imagine that one would want two DMA
channels for the 79C30 currently. At least until we can get full duplex,
bidirectional DMA. Am I interpreting that correctly?

    Chris

-- 
    "I use to be indecisive, now I'm not so sure..."