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TM8AF6268 Series
User Manuals: ST TM8AF6268 Series Microcontroller
Manuals and User Guides for ST TM8AF6268 Series Microcontroller. We have
1
ST TM8AF6268 Series Microcontroller manual available for free PDF download: User Manual
ST TM8AF6268 Series User Manual (43 pages)
Brand:
ST
| Category:
Microcontrollers
| Size: 0 MB
Table of Contents
Table of Contents
2
1 About this Document
6
Purpose and Scope
6
Terms and Abbreviations
6
Table 1. Terms and Abbreviations
6
Reference Normative
7
Annexes
7
2 STM8AF Device Development Process
8
Stmicroelectronics Standard Development Process
8
3 STM8AF Safety Architecture
9
Introduction
9
Definition of the Seooc
9
STM8AF as a Seooc
9
Assumed Safety Requirements
10
Figure 1. Definition of the STM8AF as a Seooc
10
Figure 2. Relationship between Assumptions and Seooc Development
10
Table 2. List of STM8AF Assumed Requirements
11
Table 3. Target Safety Metric Values at the Item Level
11
The Target Safety Metrics (ASIL, SPFM, LFM and PMHF)
11
Figure 3. STM8AF FTTI Allocation and Cycle Time
12
The Assumed Target Time Intervals (FTTI and MPFDI)
12
Electrical Specifications and Environment Limits
13
Systematic Safety Integrity
13
Safety Mechanisms/Measures
13
STM8AF Core
13
Program Flash Memory
15
Data EEPROM
16
Ram
16
Boot ROM
17
Basic Enhanced CAN (Becan)
18
Linuart
18
Usart
19
I2C
20
Spi
21
Analog to Digital Converter (ADC)
21
Advanced Control and General Purpose Timers (TIM 1 and TIM 2/3)
22
Basic Timer (TIM 4)
23
GPIO - Ports A/B/C/D/E/F/G/H
24
Address and Data Bus
24
Supply Voltage System
25
Reset and Clock Control Subsystems
26
Auto-Wakeup Timer (AWU)
26
Watchdogs (IWDG, WWDG)
27
Debug/Swim (Single Wire Interface Module)
27
Interrupt Controller (NVIC and EXTI)
27
Latent Fault Detection
28
Disable and Periodic Cross-Check of Unintentional Activation of Unused Peripherals
28
Assumption of Use (Aou)
29
List of Aous
29
Table 4. List of Safety Mechanisms
29
Safety Analysis Results
33
Hardware Random Failure Analysis
33
Safety Analysis Result Customization
34
General Requirements for FFI (Freedom from Interferences )
34
Table 5. List of General Requirements for FFI
34
Dependent Failures Analysis
35
Power Supply
35
Clock
35
List of Evidences
36
Appendix A Change Impact Analysis for Other Safety Standards
37
Iec 61508
37
Architectural Categories
38
Table 6. some Reference Architectures for IEC 61508
38
Figure 4. Correlation Matrix between SIL and ASIL
38
Safety Metrics Re-Computation
39
Work Products
40
Table 7. Mapping between this Document Content and IEC 61508-2 Annex D Requirements
40
Table 8. IEC 61508 Work Product Grid
41
Revision History
42
Table 9. Document Revision History
42
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