MPC5748G FCCU fault details

[james-lee]

Hello team,

Can you please explain the details(especially error condition) of MPC5748G FCCU faults below?

1. NCF[18] / MEMU_0 / System RAM error overflow (all or'ed)

2. NCF[20] / MEMU_0 / Peripheral RAM uncorrectable ECC error (what's the Peripheral RAM?)

3. NCF[25] / PRAM_0 / System PRAM Controller_0 ahb alarm

4. NCF[41] / DMC PRAM1 / DMC PRAM1 FCCU ALARM

5. NCF[43] : PRAM_0 / System PRAM Controller_0 RAM alarm

There are two DMC PRAMx FCCU alarm faults - PRAM1 and PRAM2. Why isn't the DMC PRAM0 FCCU alarm fault? 

Best regards,

James

[petervlna · Accepted solution]

Hello,

1. NCF[18] / MEMU_0 / System RAM error overflow (all or'ed)

2. NCF[20] / MEMU_0 / Peripheral RAM uncorrectable ECC error (what's the Peripheral RAM?)

For example CAN buffers.

3. NCF[25] / PRAM_0 / System PRAM Controller_0 ahb alarm

It signals that there was and uncorrectable RAM error on masters AHB.

4. NCF[41] / DMC PRAM1 / DMC PRAM1 FCCU ALARM

Alarm signal from DSMC to FCCU

5. NCF[43] : PRAM_0 / System PRAM Controller_0 RAM alarm

There are two DMC PRAMx FCCU alarm faults - PRAM1 and PRAM2. Why isn't the DMC PRAM0 FCCU alarm fault?

Hmm, hard to answer. I expect it corresponds to 0 and 1. But this would be question for documentation/ application team. You can rise a ticket at NXP.com or get in touch with application engineer.

Best regards,

Peter

[james-lee]

Hello Peter,

Thank you for your answer and please close this.

Best regards,

James