ST STM32F2 Series - 1 About this Document; Purpose and Scope; Terms and Abbreviations; Table 1. Terms and Abbreviations

1 About this document
1.1 Purpose and scope
This document describes how to use the Arm
®
Cortex
®
-M3 based STM32F2 Series in the context of a safety-
related system, specifying the user's responsibilities for installation and operation, in order to reach the desired
safety integrity level.
This document is useful to system designers willing evaluate the safety of their solution embedding one or more
STM32F2 Series microcontroller(s).
Note: Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.
1.2
Terms and abbreviations
Abbreviations related to STM32F2 Series hardware modules (like DMA, GPIO etc.) are the same than the ones
used in STM32F2 Series technical documentation. See the following table for a list of acronyms used in this
document.
Table 1. Terms and abbreviations
Acronym Definition
CCF Common cause failure
CM Continuous mode
COTS Commercial off-the-shelf
CoU Conditions of use
CPU Central processing unit
CRC Cyclic redundancy check
DC Diagnostic coverage
DMA Direct memory access
DTI Diagnostic test interval
ECM Engine control module
ECU Electronic control unit
EUC Equipment under control
FIT Failure in time
FMEA Failure mode effect analysis
FMEDA Failure mode effect diagnostic analysis
HD High demand
HFT Hardware fault tolerance
HW Hardware
ITRS International technology roadmap for semiconductors
LD Low demand
MCU Microcontroller unit
MTBF Mean time between failure
UM1845
About this document
UM1845 - Rev 4
page 2/108