Date   : Mon, 23 Feb 1987 16:23:26 GMT
From   : Douglas J Roberts <dzzr@beta.uucp>
Subject: Fact sheet or info in the 8251 USART

       Does anybody know the commands for the 8251 USART?
I would like to tell the USART in my Z-80 CPM machine to
send serial data with 1 start bit, 7 data bits, 1 parity bit, and
one stop bit.

       The initialization routine in my bios sends 0CEH to the serial status 
port which sets the UART to 2 stop bits, 16xclock, 8 data bits, no parity.

       If anybody knows the other control bytes, mucho appreciado!
       
-- 
Douglas J. Roberts, dzzr@lanl.gov
Los Alamos National Laboratory
Box 1663, F602
Los Alamos, N. M. 87544