SLLU312A July   2019  – May 2022 TCAN4550-Q1

 

  1.   TCAN4550-Q1 Functional Safety-Manual
  2.   Trademarks
  3. 1Introduction
  4. 2Product Functional Safety-Capability
  5. 3Product Overview
    1. 3.1 Block Diagram
    2. 3.2 Target Applications
      1. 3.2.1 Diagnostic Features
        1. 3.2.1.1 Mode Overview
        2. 3.2.1.2 Sleep Wake Error Timer (SWE)
        3. 3.2.1.3 Undervoltage
        4. 3.2.1.4 Thermal Shut Down
        5. 3.2.1.5 CAN Bus Communication
          1. 3.2.1.5.1 M_CAN
        6. 3.2.1.6 Processor Communication
          1. 3.2.1.6.1 SPI Integrity
            1. 3.2.1.6.1.1 SPI Scratchpad
            2. 3.2.1.6.1.2 SPIERR
            3. 3.2.1.6.1.3 M_CAN Forced Dominant and Recessive
            4. 3.2.1.6.1.4 SPI and FIFO
            5. 3.2.1.6.1.5 ECC for Memory
          2. 3.2.1.6.2 Timeout Watchdog
          3. 3.2.1.6.3 Floating Pins
          4. 3.2.1.6.4 RST Pin
          5. 3.2.1.6.5 Interrupt and Internal Fault Detection
  6. 4Development Process for Management of Systematic Faults
    1. 4.1 TI New-Product Development Process
  7. 5Revision History
3.2.1.6.1.1 SPI Scratchpad

Using the TCAN4550-Q1 scratchpad by the processor makes it possible to write and read back data for verification of accuracy. This verifies SPI interface to register space. It can also be accomplished without interfering with CAN bus.
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