MIDI interfaces

From: Richard Atkinson (rga24_at_cantab.net)
Date: 2002-09-12 11:29:42

What were the address maps of the popular C64 MIDI interfaces? There seem
to have been a few of them, all slightly different. I think the strange
mapping of the Sound Expander cartridge thru port is intended to make the
MIDI cartridges appear the same. Any info on C64 MIDI standards would be
gratefully appreciated. See

http://www.funet.fi/pub/cbm/schematics/cartridges/c64/sfx/sfx-sch.gif

for the details of the cartrige thru port.


Richard


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