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RM57L843: RM57L843

Geng Yue
Intellectual 535 points
Part Number: RM57L843

Hi everyone,

I am working on the CCM module on RM57L843. I think the differences of the four operation mode is shown in table below. My problem is than I don't know the meaning of each issue.

Does the "Self Test Error Signal " = "ESM module"?

What's the meaning of "CMPE"?

What's the meaning of "Compare Error Signal "?

  • 0
    TI__Guru**** 196776 points

    Hello Yue,

    Both SelfTest error signal and compare error signal are to ESM module. The CPU compare error asserts CCM-R4F self-test error (ESM1.31) as well. The CCMR4 compare is on ESM2.2. During self-test, both CPUs can execute normally, but the compare logic will not be checking any CPU signals.

    In error forcing mode, a test pattern is applied to the CPU related inputs of the CCM-R4F compare logic to force an error of the compare unit. The ESM error flag “CCM-R4F compare” (ESM2.2) is expected after the error forcing mode completes.

    In self-test error forcing mode, an error is forced at the self-test error signal. The ESM error flag “CCM-R4F selftest” (ESM1.31) is expected after the self-test error forcing mode completes.

    CMPE: compare error which is indicated on ESM2.2

    STC: self-test complete. When self-test is complete, STC bit is set.

    Regards,

    QJ