[Coco] Coco proto board

[Mark McDougall]

OK, I'm now looking at using an EMP364/128 100-pin TQFP CPLD.
There's _plenty_ of I/O. :)

I'm thinking of adding a socket for 27C256/512 & footprint for M29F040 
(512KBx8) Flash. The flash will be programmable from the Coco.

All the cart pins (except SND) are routed to the CPLD. This would allow the 
'address decode fix' for internal devices IIUC.

There's 16 GPIO lines and 8 external CS lines for add-on IO.

I'd imagine you could hook up one-wire/SPI devices at least. I2C might be 
asking a bit much of the CPLD - I'm not sure?!?

Any other ideas? Should I add some dipswitches into the CPLD? LEDs? Was 
going to route SND to the 'prototyping area' of the board...

Regards,

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