KIM-4 and other motherboard pins

Topics related to older 6502-based hardware and systems including (but not limited to) the MOS Technology KIM-1, Synertek SYM-1, and Rockwell AIM-65.
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EmbeddedBob
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KIM-4 and other motherboard pins

Post by EmbeddedBob »

I'm trying to construct a motherboard for my KIM-1. Various sources show different signals for various pins on the connector. Some motherboards have both the Expansion and Application bus, while some have only the Expansion. The KIM-4 schematics seem to disagree with other "KIM-4" definitions, and not all of the signals are defined.

Does someone have a good reference for the signals? I'm hoping to be compatible with any third-party boards I happen to stumble across.

Bob
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