7201 (was Re: Z8530 (was Re: Navtel 9460 Protocol Analyzerinfo?)) - test-drb@ccmp.vtda.org

16 Apr 2005

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Subject: Re: 7201 (was Re: Z8530 (was Re: Navtel 9460 Protocol Analyzerinfo?))
   From: Ben Franchuk <bfranchuk at jetnet.ab.ca> 
...
 > The Zilog SIO types are fine by me. The yard sale
full of assorted
> and scattered registers is annoying, but programmers opinions
> don't count. It does pretty much everything required for
> full-featured async. At least it does what you tell it to. 
They seem to.  Darn things were never cheap though but being two 
for one made them tolerable if you needed two.

...
 Well I favor dumb chips at the moment because I
don't have
several MEG or EPROM to bootstrap my HOMEBREW computer.Infact I have
no PROM of any kind, just toogle switches*. Since I favor a 6809
style of memory access** I am using 68B50's. I just need to finish
the CPU logic design and build it. :) 
I kinda liked that one to.  The MITS 2SIO card used them and it worked
very well.  That was for 8080, works well for 8085 too.

Allison