9.9 Error Conditions

The prefetch module handles and reports information about two error types:

ECC Double-bit Error Detected (DED)
ECC Single-bit Error Corrected (SEC)

The user can enable and disable the ECC Error detection logic using the configuration bits, ECCCTL[1:0] (CFGCON0/DEVCFG0[29:28]).

The ECC logic increases the read access delay from the PFM. Depending on the frequency of the system clock, the Wait states can be different between ECC-enabled and ECC-disabled.

Note: ECC errors are captured for predictive prefetch reads of the PFM. However, do not report those errors until, and unless, the system starts using that data.