Hello Jeff,

   JB> I just went to check out Amiga pinouts to see just
     > what all the serial port could handle, and apparently
     > different models had varying capabilities, everything
     > from audio in, audio out, the various power voltages
     > you mention, interrupts, and even the system clock.
     > That's actually pretty awesome from a tinkerer's
     > perspective.

    Handy both for homebrew electronics people and for
peripheral manufacturers.  I never did figure out what the audio in was for
though, afaik Paula didn't have an ADC.

  JB> Might have been a headache for people to use standard
    > cables with, though, until they made sure it was
    > ignoring those other pins instead of passing them
    > through.

    I made myself a little adaptor: 25 pin M to 25 pin F
with only the "safe" pins wired through.

- Andy Ball

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