KayPro II keyboard schematic?

Tony Duell ard at p850ug1.demon.co.uk
Sat Dec 15 17:09:21 CST 2007

> It has an 8048 uP if memory serves and the output is TTL level serial 
> ASCII.  Making it put out parallel would be a major hackup including 
> reprogramming an 8748.

Or alternatively converting that serial output to parallel using an 
external circuit. How hard that is depends on the format of the serial 
data. If it's an asynchonous signal, with start and stop bits, a 40 pin 
dumb UART chip should do it.

What was used inside the Kaypro to receive the keyboard data?


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