Pinout for SED9421

lee davison leeedavison at
Fri Nov 25 18:43:13 CST 2005

>> Also Ohio Scientific, I think that was with an async UART?
>> (Don't know for sure, but I do know the best way to get the
>> correct information is to post incorrect information!)

>> Tim.

> I think the part they used was an USART as in async, bisync,
> and HDLC/.x25 kinda thing.

> Allison

6850 Async UART clocked at 125K bits/s, and a PIO for the control



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