MPC5748G FCCU fault details

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MPC5748G FCCU fault details

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james-lee
NXP Employee
NXP Employee

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

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1 Solution
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petervlna
NXP TechSupport
NXP TechSupport

Hello,

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

petervlna_0-1716795807961.png

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.

petervlna_1-1716796481131.png

 

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

Alarm signal from DSMC to FCCU

petervlna_3-1716797285349.png

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

petervlna_2-1716796922046.png

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

 

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125 Views
petervlna
NXP TechSupport
NXP TechSupport

Hello,

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

petervlna_0-1716795807961.png

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.

petervlna_1-1716796481131.png

 

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

Alarm signal from DSMC to FCCU

petervlna_3-1716797285349.png

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

petervlna_2-1716796922046.png

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

 

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james-lee
NXP Employee
NXP Employee

Hello Peter,

 

Thank you for your answer and please close this.

 

Best regards,

James

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