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>The controller is made up of several blocks more or less separated from =
each
>other and connected with the internal bus. These blocks are the core =
CPU block,
>clock and reset block, port integration module, I2C module, A to D =
converter,
>timers, CAN and so on.
>
>One of these blocks is the BDM module which operates separately from =
the CPU
>block which gives it possibility to interrogate memory and registers in =
CPU
>dead cycles and by that not disturbing the CPU. It communicates with =
the debug
>environment serially with one bidirectional pin.

OK, thanks for the resume of the features. I hadn't delved that deeply =
into the innards that I  had realised they were specifically blocks =
seperated in that manner. I had been investigating with a view to =
attempt soem reverse engineering, though I suspect the chip will be =
locked down anyway.

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