KayPro II keyboard schematic?

[Allison]

>
>Subject: Re: KayPro II keyboard schematic?
>   From: ard at p850ug1.demon.co.uk (Tony Duell)
>   Date: Sat, 15 Dec 2007 23:09:21 +0000 (GMT)
>     To: cctalk at classiccmp.org
>
>> 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?

Z80 DART, The keyboard is a simple TTL level serial (async)
protocal.  It's bidirectional for lighting leds if memory serves.

Allison

>
>-tony