Article ID: 000084898 Content Type: Troubleshooting Last Reviewed: 09/11/2012

Why does the Scatter-Gather DMA (SG-DMA) Controller Core restart unexpectedly?

Environment

  • Reset
  • BUILT IN - ARTICLE INTRO SECOND COMPONENT

    Critical Issue

    Description

    The SGDMA will restart if you clear the chain_complete bit without clearing the control run bit first.

     

    The workaround is to clear the control run bit before clearing the chain_complete bit.