Re: HS-modem substitute

[Michael Schwingen <rincewind@tubul.dascon.de>]

On Fri, Jun 26, 1998 at 01:22:38PM -0400, Martin-Eric Racine wrote:
>    1) modified MFP (ie: RSVE)

The hardware modifications are documented - simply put, 110, 134 and 150 bps
are replaces with 38400, 57600 and 115200 bps. You should be able to
auto-detect RSVE by using timer code.

>    2) modified SCC (ie: 14 MHz PCLK and/or ESCC replacement)

Should be no problem, either. A different clock only requires different
routines to set the baud rate registers - the chip documentation from AMD
(?) should tell you how to do this.

And the ESCC should work fine as an SCC. You might want to support the
'E'xtended features - but again, the chip documentation should be enough for
this.

>    3) ST ESCC addition

All you would need for this is the base address - which should be easy to
find out, if it is not in the ST_ESCC documentation.

cu
Michael
-- 
Michael Schwingen, Ahornstrasse 36, 52074 Aachen