After fiddling around with my Briel Altair Micro, I've come to desire more than just the console serial port. To that end, I read up on the 16550A UART, line drivers, line receivers, and schematics for other implementations of serial ports. I came up with this:

http://661.org/tmp/altairmicro-serial.pdf

How close am I to this design making sense and working?

--
David Griffith
d...@661.org

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