[Coco] speech/orch pak

[Mark Marlette]

At 02:57 PM 7/21/2004 -0700, you wrote:

Depends on how the cartridge is decoded. At Cloud-9 our devices are memory 
mapped and the address bits in the Multipak are global, all slots see the 
address bits regardless of the switch position. The switch multiplexes CTS 
and SCS effectively.Now to read from the FLASH, not the Compact Flash, we 
decode to CTS which is a modified CTS because CTS is not active during a 
write to the CTS range. This is all done in the CPLD. That what makes it 
fun, do what ever you want. We also use SLENB to take other devices off the 
bus.

The flexibility and thought that was placed in this machine still amazes me!

Regards,

Mark
Cloud-9




>But if you plug it into the mpi, I thought it would only be active when the
>selector switch was selecting it (unless you put it in slot 4? [which I
>imagine runs concurrently with the other 3 slots?]). That is why I could
>never quite figure out how it was used.
>
>SB
>
>'I stepped in What??'
>
> > > Ah, I think I understand. The Y-cable lets the speech pak
> > and multipak
> > > run concurrently.
> > >
> > ...and without using up an MPI slot. I could have just
> > plugged it into the MPI.
> >
> > Bob
>
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