I am looking at interfacing a small hardware piece to the
serial port of my MarkII. Basically, I am looking for a UART
like chip available in a DIP package that performs the basic
serial operations, presents a new byte on a parallel interface,
allows another byte to be written to a parallel interface and
performs the serial transmit of the new byte.

I thought someone in this forum may have done similar serial
interfacing and had some ideas of particular chips to use.

My basic idea involves using a current 8-input A/D converter I have
to relay various information about the car environment to the empeg
where a small application will adjust EQ/Vol like parameters in response.
Things like vehicle-speed, top up/down, etc. I'm hoping to avoid
requiring a microcontroller by using a simple digital design of
1) receive byte index (only lower 3 bits count, address of 0-7)
2) send 1 byte value back

Thanks

Brett