AN4124 datasheet(20/32 Pages) STMICROELECTRONICS

Part #	AN4124

Description	Using SPC56EL60x fault collection and control unit

PDF	32 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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20 / 32 page

Redundancy and functions

AN4124

20/32

Doc ID 023294 Rev 2

For some faults (Critical Faults):

●

RGM and FCCU react to the fault independently.

●

RGM resets the device (LR).

–

FCCU is not reset by RGM reset.

●

FCCU takes some action depending on the configuration.

–

FCCU signals the fault externally.

–

after the reset the device enters SAFE mode.

–NMI

Figure 5.

RGM/FCCU – dual path faults (critical faults)

For some faults (Non-critical Faults):

●

RGM and FCCU react to the fault independently/

●

RGM reaction is configurable.

–IRQ

●

FCCU takes some action depending on the configuration.

–

FCCU waits for the NCF timeout.

–

FCCU signals the fault externally.

–

device enters SAFE mode

–NMI

Figure 6.

RGM/FCCU – dual path faults (Non-critical Faults)

AN4124 Datasheet(PDF) 20 Page - STMicroelectronics