7201 (was Re: Z8530 (was Re: Navtel 9460 Protocol

Tony Duell ard at p850ug1.demon.co.uk
Sat Apr 16 18:53:08 CDT 2005

> Has anybody made a easy to use serial chip, all seem to be lacking some 
> feature?
> The only way I like to program is I/O is  'hardware" setup ... Dip 
> switches and hard reset
> lines. :)

Which reminds me... The HP98036 (serial [1] interface for the 9825, 9835, 
9845 computers) uses an 8251 USART. It's initially configured by dip 
switches on the PCB, there's a little state machine to load the right 
values into the 8251's registers.


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