SPRZ488F March   2022  – May 2026 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1

 

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  2. 1Usage Notes and Advisories Matrices
  3. 2Silicon Usage Notes
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  4. 3Silicon Advisories
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    37.     i2500
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  5.   Trademarks
  6. 4Revision History

i2500

LIN Module Fails to Wake Up When Using 0xF0 as Wake-Up Key

Details:

Using the wake-up key 0xF0 to wake up the LIN module causes the LIN state machine to enter a deadlock state. This renders 0xF0 unusable as a wake-up key for this module.

Workaround(s):

Instead of sending the 0xF0 wake-up signal:

Transmit a LIN header with an unused identifier (such as the reserved identifier 0x3E or any other identifier not used in your LIN network)

The break field contained within this header will:

  • Serve as a valid wake-up command to other LIN nodes on the network
  • Successfully clear the internal LIN POWERDOWN bit in the module