I found that there is a possible minimum connection for the ColdFire BDM, as listed below:
ALLPST (connected to all four PST[3:0] signals)
If using something other than the P&E wiggler, you don't need the ALLPST and PSTCLK signals.
This allow the debugging but not the tracing.
I think that this connection allow to set software and hardware breakpoints, to dump the ram and CPU registers.
What are the not allowed features?
Thanks in advance