Subject: Re: IPX serial ports...
To: matthew green <mrg@eterna.com.au>
From: anthony baxter <anthony.baxter@aaii.oz.au>
List: port-sparc
Date: 06/25/1996 14:12:10
David Miller wrote:
> It is a Zilog 85C30, it cannot go faster than 38400 at least on sun4c
> because of the crystal clock frequency being fed into it.

matthew green wrote:
>    I know that at least two 8530 uarts can speak with each other at baudrate
>    generator value 0 (from a target hardware which even has the same quartz).
> the z8530 is certainly capable of doing faster tha 38400 ...
>    So the problem is "you *can* run faster, but you won't get 115k" ?
> but not on a sparc.  the clock is the problem.

FWIW, we run Sparc 2's with SunOS 4.1.3 at 76.8K all the time - they handle
the load fine. Actually, now that I think about it, there's an ELC doing it,
too.

Anthony