Subject: Re: DEC 3000/400 Serial Port Question
To: None <>
From: Toru Nishimura <>
List: port-alpha
Date: 07/13/2001 23:34:44
T. Martin <> wrote;

> The serial port is the same as the 3000/300, its either 9600 max or 19200,
> but stil its not fast enough to take a 56k modem, I had the same thought
> till I sorted through the programmers guide. 

More depressing fact is NetBSD/alpha does not utilize DMA assist for
Zilog SCC.  The current implementation of NetBSD/alpha runs plain PIO
(like as most of other SCC).  Worse than it, the implementation does not do the
right thing on the _paired_ SCCes for full modem control.  To make all right,
it'd require full scratching of zs_ioasic.c code.

Tohru Nishimura