[Coco] Fwd: IP packets on my coco

[RETRO Innovations]

On 6/9/2016 8:48 PM, Dave Philipsen wrote:
> What do you need the CPLD for?
level shifting.  It's the easiest way to keep parts count low and unit 
cheap.

Otherwise, you need:

level shifters (2)
glue logic (looks like it has 8 bits of address, so at least enough to 
map the 256 bytes into the memory map, I assume in ROM space)
logic to create a pseudo CART signal when writing is needed.
logic to only enable that CART_WRITE line in certain cases.


Jim