Drivers on more than just the CPU

[Steven Graham]

Hi

I'm making myself a small Z80 based microcomputer as a hobby project. It
will have 4 or 5 PIO chips, an SIO, ROM, RAM and a small graphic LCD,
plus an expansion port.

I am going to have bus drivers on the bus lines at the CPU end but what
about on each of the other components? Do they need drivers as well or
can I just get away with having them at the CPU?

thanks
srg