Zilog System 8000

[Alexandre Souza]

> So - none has a S8000... at home? ;)
> I'm missing a backplane so I tried at first hooking up power on my CPU
> module and connecting a serial interface to the tty1 (console) pins of
> the bus-connector.... powering on the system makes the cpu getting a bit
> warm but my console is quiet :( I'm not sure if I've to connect some
> other pins as well with +5V or GND. NMI... RESET whatever... so I
> wonder if someone has a S8000 at hand and can measure some things?

    Old computers with serial port? Take a look at the 1488 and 1489 chips, 
they have to be supplied with +12 and -12 tensions. Don't forget old RAM 
memories who uses -5 volts...