AN3077 datasheet(12/82 Pages) STMICROELECTRONICS

12 / 82 page

Functional safety requirements for application software

AN3077

12/82

DocID16384 Rev 10

Functional safety requirements for application

software

This section gives an overview of necessary, or recommended, measures when using the

individual modules of the Device_Number. If a module is implemented without following the

text of this section, the safety certificate for the module, or the entire MCU, may not be

validated. It is possible to ignore aspects of the text if equivalent measures that are taken

can be shown to manage the same failures.

Modules not explicitly covered by this document do not require any software measures.

The modules covered by the SoR reach very high Diagnostic Coverage (DC) without

dedicated measures at application or system levels.

3.1

Application software requirements

Application software shall be developed according to ASIL D requirements.

3.1.1

Mandatory software requirements

The following sections contain Mandatory design constraints for using the Device_Number

devices in an ASIL D system:

●

Section 3.2, System Status and Configuration Module (SSCM)

●

Section 3.3: Self-Test Control Unit (STCU)

●

Section 3.4: Reset Generation Module (MC_RGM)

●

Section 3.5: Clock configuration

●

Section 3.7: Flash memory

●

Section 3.8: Interrupt Controller (INTC)

●

Section 3.10: Enhanced Direct Memory Access (eDMA) requests

●

Section 3.11: Periodic Interrupt Timer (PIT)

●

Section 3.13: I/O peripherals

●

Section 3.14: Cross Triggering Unit (CTU)

●

Section 3.15: ADC

●

Section 3.16: Temperature sensors

●

Section 3.17: Software Watchdog Timer (SWT)

●

Section 3.19: Cyclic Redundancy Checker Unit (CRC)

●

Section 3.20: Clock Monitor Unit (CMU)

●

Section 3.21: Frequency-Modulated Phase-Locked Loop (FMPLL)

●

Section 3.22: Internal RC Oscillator (IRCOSC)

●

Section 3.23: Power Management Unit (PMU)

●

Section 3.25: Register Protection Module

●

Section 3.27: Fault Collection and Control Unit (FCCU)

AN3077 Datasheet(PDF) 12 Page - STMicroelectronics

AN3077 Datasheet(HTML) 12 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82

Datasheet Download

Link URL