Re: [N8VEM-S100:239] S-100 CPU boards

[mike <mi...@pikeaero.com>]

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I think you may be right there Douglas, I thought you just had to expose
the bit clock I/O to make it possible to implement in sofware, but I see
there's a some other timing that is difficult or perhaps impossible to
achieve with the 16550. My mistake.

- --Mike

On 11-06-01 03:13 AM, Douglas Goodall wrote:
> Hi Mike,
> 
> I was looking around on your web site, and I noticed your 8-port serial
> board is listed as capable of bit protocols and synchronous  operation.
> 
> I have quite a bit of experience with synchronous and SDLC, and I seem
> to remember that you need an MPSC (Multi-Protocol Serial Controller.
> 
> Either Intel 8274 
> 
> http://n8vem-sbc.pbworks.com/w/file/40807659/P8274.pdf
> 
> or Zilog SCC
> 
> http://www.zilog.com/docs/appnotes/pb0227.pdf
> 
> Are you certain you can do SDLC with a 16550?
> 
> Douglas
> 

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