17.1 Restart command of WDT may reset the DDR controller

When using the WDT window with WDD and WDV field of the WDT:

  • if 0<WDD<WDV
  • and the WDT is restarted in the permitted window 0<wdt counter<WDD

then the WDT is restarted but a reset signal is sent to the fuse controller and the DDR controller, leading to DDR memory access and/or fuse access issues.

Work around

None. Do not use the window mode of the WDT.