DocID025333 Rev 1

9/13

AN4367

Machine check handler

12

2.2

User handler

Here the root cause analysis is done. Such analyses requires supportive information from

•

Low level driver (MCAR, MCSR etc.)

•

Peripherals status registers for further elaboration

Based on the results of analysis and corrective actions done, user handler should pass the

information about the return type back to the low level driver; indication if MCSRR0 content

should be modified or not before mcrfi instruction.

Figure 3. Machine check exception user handler flow