On Mon, 17 Oct 2016 17:11:28 -0700, John R. Hogerhuis wrote:

Interesting.  Might have a use for that, I do some work with vending
machines. The MDB bus used for communication with payment device has 9 bit

Yeah, that looks like the same protocol (not identified as such with the kit I was working with) - 9th bit set on address, reset on the data bytes.
For an uncommon protocol, it pops up quite a lot.

  Daryl Tester
  Handcrafted Computers Pty. Ltd.

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