[Coco] Coco proto board

[Mark McDougall]

Phill Harvey-Smith wrote:

> Well if you are not wedded to Altera, Xilinx do 84pin PLCC versions of 
> the XC9572 and 95108, both of which are also 5V, with these you have 
> enough lines to completely decode any address, which means that you can 
> put RAM in the $C000 reigon, you'd of course need to use DSD to disable 
> the onboard device selection too, and of course this should only be used 
> in map type 0 :)

Unfortunately, I am kinda 'wedded' to Altera - several years of experience 
and not a single Xilinx design. :( Perhaps the other way to look at it is an 
opportunity... I actually _do_ have a Xilinx FPGA dev board myself, just 
haven't actually done anything with it yet...

Regards,

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