This describes the hardware which interfaces between a PC printer port and a (reduced) version of a Z80 bus. It can be used in conjunction with either:-
The circuit has been drawn using KiCad. It is also possible, although tedious, to build the circuit using veroboard. The KiCad project maybe downloaded as Z80BusInterface.tgz.
Note one vcc/gnd decoupling capacitor for each integrated circuit - to be placed as near as possible to the power pins of the integrated circuit.
Alternativly download Z80BusInterface.pdf for the circuit diagram in pdf format. Note:KiCad does