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Question asked by Alice Li on Mar 26, 2018
Latest reply on Mar 29, 2018 by Alice Li

Dear NXP engineers,

 I have some questions about FCCU errors resources of MPC5744P. Would you help me?

 As described in AN5259,  MPC574xP FCCU Fault Sources, several NCFs related to STCU and BIST have been listed,including NCF[7]-NCF[9] and NCF[60]-NCF[64]. 

  1. First, NCF[7]  STCU2 fault condition (run in application mode) , does it means that MCU enter BIST mode unexpectedly? As we know, BIST will be performed when start-up and shun-down. It would not enter BIST mode when MCU is in application mode?  How and when will make  NCF[7] occur?
  2. Secondly,  how to clarify the NCF and CF? Does it predefined in DCF records? User cannot change a NCF to a CF?
  3. Thirdly, what's the difference between NCF[8-9] and NCF[60-64]. It seems like that NCF[8-9] contain NCF[60-64] and NCF[60-64] just a part of BIST results.  Why specailly list MBIST results in NCF[60-64] while no LBIST results.

Thank you for reading and I am looking forward to your answer.

Best wishes.