>At least PICmicros are still in plentiful supply. I do wish
>Microchip would fix the "RB6/7 holddown" bug in the ICD2
>though. If the ICD2 is in Programmer mode and is holding the
>target in reset, it should be holding RB6 and RB7 low.
>Thing is, when it releases MCLR, it never Hi-Zs RB6 and RB7
>so you get wonderful contention issues, Vcc mysteriously
>plummeting and other nastiness.
>Unplug the ICD and everything starts working again...

I suspect that the holding of RB6 & 7 is a legacy of it also being a debug
tool. You set the micro running, and then when it reaches a breakpoint it
talks to the ICD. However one would also have thought that this would also
require the lines to be tristated by the ICD, so the micro can wiggle them.

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