SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
The MCU_M4FSS is an Arm Cortex-M4F based subsystem running safety processing. During the boot process, the MCU_M4FSS will be configured by an initial software running on a different core. Following configuration, software will release the safety processor (M4F) out of reset, and at this point safety processor code starts execution.
The Cortex-M4F processor is a Cortex-M4 processor that includes the optional floating point unit (FPU) extension.
The MCU_M4FSS is designed to meet SIL-2 safety requirements. Safety is enabled for all major subsystem components that include ECC / EDC features:
There is one MCU_M4FSS in the device. Table 6-320 shows MCU_M4FSS allocation across device domains.
Module Instance | Domain | |
---|---|---|
MCU | MAIN | |
MCU_M4FSS0 | ✓ | – |