>    Date: Sun, 16 Jun 1996 17:20:35 -0700
>    From: greywolf@siva.captech.com (Greywolf)
>
>    Is there any way of getting the serial ports on a SPARCstation IPX
>    (the din-8 -> DB-25 thingies) to go faster than 38400?  Has anyone
>    tried?  I can't quite seem to locate the proper place in the kernel
>    for getting and setting the line speed, and where the timing delays
>    actually happen.
>
>    What kind of chip sits on an IPX port, anyway?
>
> 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.
>
> Later,
> David S. Miller
> dm@sgi.com

The baudrate table in the SunOS zs driver says value 2 for B38400. So
with "0" the 8530 should run with 76800, and "1" gives 51200. Right ?

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).

So the problem is "you *can* run faster, but you won't get 115k" ?

louis
--
louis@dachau.marco.de		in real life: Ju"rgen Fluk
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