Content originally posted in LPCWare by Ex-Zero on Mon May 21 07:57:53 MST 2012
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cannot find any answer in the usermanual...
:confused:
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The Rx DMA manager uses an internal tag protocol in the memory interface to check that the receive data and status have been committed to memory. After the status of the fragments are committed to memory, an RxDoneInt interrupt will be triggered, which activates the device driver to inspect the status information. In this example, all descriptors have the Interrupt bit set in the Control word i.e. all descriptors will generate an interrupt[B][COLOR=Red] after[/COLOR][/B] committing data and status to memory.