[Coco] [Color Computer] USB project

James Diffendaffer jdiffendaffer at yahoo.com
Sat Jul 30 10:23:11 EDT 2005


Even if I have to invert the reset/interrupt lines and include the
clock I shouldn't need additional chips.  I could even add jumpers to
give the interface an alternate address.

--- In ColorComputer at yahoogroups.com, "James Diffendaffer"
<jdiffendaffer at y...> wrote:
> --- In ColorComputer at yahoogroups.com, "James Diffendaffer"
> <jdiffendaffer at y...> wrote:
> > The Cypress USB chip requires the following inputs:
> > D0-D7 for data I/O
> > A0 to select which address on the chip you will be accessing
> > /R read line active low
> > /W write line active low
> > /CS chip select active low
> 
> Oops... I also need to look at the interrupt interface and reset.  I
> still think I'll have enough gates even if I need to invert a line.





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