We're planning to enable ECC in our system. (It's currently not enabled)
Wanted to understand more about the ERR_DETECT register in MPC8555's DDR Controller.
The spec states about 3 types of errors.
- multiple memory errors
- single and multi-bit ECC errors
- memory select errors.
Wanted to know the difference between the three.
Also, does this error imply a difference between the value in cache and RAM?
Or actual corruption in RAM?