SFFS619 December   2023 MSPM0L1304-Q1 , MSPM0L1305-Q1 , MSPM0L1306-Q1

 

  1.   1
  2. 1Introduction
    1.     Trademarks
  3. 2MSPM0L Hardware Component Functional Safety Capability
  4. 3Development Process for Management of Systematic Faults
    1. 3.1 TI New-Product Development Process
    2. 3.2 TI Functional Safety Development Process
  5. 4MSPM0L Component Overview
    1. 4.1 Targeted Applications
    2. 4.2 Hardware Component Functional Safety Concept
    3. 4.3 Functional Safety Constraints and Assumptions
  6. 5Description of Hardware Component Parts
    1. 5.1  ADC
    2. 5.2  Comparator
    3. 5.3  OPA
    4. 5.4  CPU
    5. 5.5  RAM
    6. 5.6  FLASH
    7. 5.7  GPIO
    8. 5.8  DMA
    9. 5.9  SPI
    10. 5.10 I2C
    11. 5.11 UART
    12. 5.12 Timers (TIMx)
    13. 5.13 PMU
    14. 5.14 CKM
  7. 6MSPM0L Management of Random Faults
    1. 6.1 Fault Reporting
    2. 6.2 Functional Safety Mechanism Categories
    3. 6.3 Description of Functional Safety Mechanisms
      1. 6.3.1  ADC1,DMA1,COMP1,GPIO2,TIM2,I2C2,IOMUX1,OA1,SPI2,UART2,SYSCTL5,REF1: Periodic read of static configuration registers
      2. 6.3.2  ADC2: Software test of function
      3. 6.3.3  ADC3: ADC trigger overflow check
      4. 6.3.4  ADC4: Window comparator
      5. 6.3.5  OA2: Test of OA using internal DAC8 as a driver
      6. 6.3.6  COMP3: Testing COMP using an external pin
      7. 6.3.7  CPU1: CPU test using software test library
      8. 6.3.8  DMA2: Software test of DMA function
      9. 6.3.9  SYSMEM1: Write to SRAM from CPU, read from DMA
      10. 6.3.10 SYSMEM2: Write to SRAM from DMA, read from CPU
      11. 6.3.11 SYSMEM5: SRAM March test
      12. 6.3.12 FXBAR1: CPU readback of known data from Flash
      13. 6.3.13 FXBAR2: DMA readback of known data from Flash
      14. 6.3.14 FLASH2: CRC check of flash content
      15. 6.3.15 GPIO1: GPIO test using pin IO loopback
      16. 6.3.16 WDT
      17. 6.3.17 TIM1: Software test of function
      18. 6.3.18 I2C1: Software test of I2C function using internal loopback mechanism
      19. 6.3.19 SPI1 : Software test of SPI function
      20. 6.3.20 SPI3: SPI periodic safety message exchange
      21. 6.3.21 UART1: Software test of UART function
      22. 6.3.22 SYSCTL1: MCLK monitor
      23. 6.3.23 SYSCTL8: Brownout Reset (BOR) Supervisor
      24. 6.3.24 SYSCTL9: FCC counter logic to calculate clock frequencies
      25. 6.3.25 SYSCTL10: External voltage monitor
      26. 6.3.26 SYSCTL11: Boot process monitor
      27. 6.3.27 SYSCTL12: Shutdown memory bits parity protection
      28. 6.3.28 SYSCTL14: Brownout Voltage Monitor
      29. 6.3.29 SYSCTL15: External voltage supervisor on VDD
      30. 6.3.30 REF2: Test of VREF using ADC
  8.   A Summary of Recommended Functional Safety Mechanism Usage
  9.   B Distributed Developments
    1.     B.1 How the Functional Safety Lifecycle Applies to TI Functional Safety Products
    2.     B.2 Activities Performed by Texas Instruments
    3.     B.3 Information Provided
  10.   C Revision History

4.1 Targeted Applications

The MSPM0L component is targeted at general-purpose functional safety applications. This is called Safety Element out of Context (SEooC) development according to ISO 26262-10. In this case, the development is done based on assumptions on the conditions of the semiconductor component usage, and then the assumptions are verified at the system level. This method is also used to meet the related requirements of IEC 61508 at the semiconductor level. This section describes some of the target applications for this component, the component safety concept, and then describes the assumptions about the systems (also know as Assumptions of Use or AoU) that were made in performing the safety analysis.

Example target applications include, but are not limited to, the following:

  • Automotive - Person occupancy detection
  • Automotive - Lighting
  • Automotive - Seat heaters
  • Automotive - Window control

MSPM0L Typical application shows a generic block diagram for applications listed above. This diagram is only an example and may not represent a complete system.

GUID-20230529-SS0I-CNVX-7RCB-HX3Q09BZM9XT-low.svgFigure 4-2 Typical Application