> > > I rather suspect that one of the Super Nova system's custom-named ICs is some
> sort
> > of
> > > MCU that channels the board I/O through shared RAM rather than the direct mapping
> > the
> > > driver currently provides.
> >
> > 400000-40000f looks like a somewhat usual in/ou mux to me, what makes you think
> that?
> >
> > OG.
>
> It's the analog "paddle" stuff, which is mapped to some oddly nonconsecutive bytes.
> What's even more odd about that is that the ADC on the board is a MSM6253, which has
> a microprocessor bus-compatible serial readout.
I vaguely recall the SH2 has some kind of serial interface, sure it isn't hooked up to that, and the current hookup is just skipping that part?
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