[Coco] Coco proto board

[Mark McDougall]

Hi,

I'm toying with the idea of producing a coco 'prototype' board that plugs
into the cartridge connector slot.

I'm thinking of putting a MAX3000A CPLD on there to handle both address
decoding and allow programmable I/O. It will also have a ROM socket and a
'proto area'. Build option will be clocked by E/Q or on-board clock.

Question:

Which address lines should I route to the CPLD for decoding? I was
thinking perhaps the top few lines and the bottom few... what would be the
best mapping options for such a board?

And any other options that would be nice?

FYI: we're getting another (non-coco) PCB (2-sided) done and I thought we
could fill out the panel with a handful of these boards... so it's not
definite yet... just a thought atm...

Regards,

-- 
|              Mark McDougall                | "Electrical Engineers do it
|  <http://members.iinet.net.au/~msmcdoug>   |   with less resistance!"