AN4124 Datasheet, PDF (1/32 Pages) STMicroelectronics – Using SPC56EL60x fault collection and control unit

AN4124
Application note
Using SPC56EL60x fault collection and control unit (FCCU)
Introduction
This application note describes in detail how to use the main features of the SPC56EL60x
fault collection and control unit module (FCCU).
The fault collection and control unit offers a redundant hardware channel to collect errors
and, as soon as a failure is detected, to lead the device to a safety state in a controlled way.
No CPU intervention is required for collection and control operation.
The FCCU circuitry is checked at start-up (after boot) by the self-checking procedure. The
FCCU is operative with a default configuration (without CPU intervention) immediately after
the completion of the self-checking procedure.
Two classes of faults are identified based on the criticity and the related reactions.
Internal (that is, short or long functional reset, interrupt request) and external (EOUT
signaling) reactions are statically defined or programmable based on the fault criticity.
The default configuration can be modified only in a specific FCCU state for
application/test/debugging purposes.
September 2013
Doc ID 023294 Rev 2
1/32
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