Changes between Version 7 and Version 8 of Component/Vci Dma


Ignore:
Timestamp:
Feb 9, 2008, 7:13:06 PM (17 years ago)
Author:
alain
Comment:

--

Legend:

Unmodified
Added
Removed
Modified

  • Component/Vci Dma

    v7 v8  
    55== 1) Functional Description ==
    66
    7 This VCI component is both a target and an initiator.
    8  * Addressing as a target allows to configure it for a transfer.
    9  * Initiator will do the transfer
     7This VCI component  moves data from
     8a source memory buffer to a destination memory buffer.
     9It is both a target and an initiator.
     10 * It is addressed as a target to be configured for a transfer.
     11 * It is acting as an initiator to do the transfer.
    1012
    11 There is only one DMA context handled at a time
    12 
     13There is only one DMA context handled at a time.
    1314An IRQ is optionally asserted when transfer is finished.
    14 
    1515This hardware component cheks for segmentation violation, and can be used
    1616as a default target.
    … …  
    2929
    3030 * `DMA_IRQ_ENABLED`
    31   * Writing a non zero value enables the IRQ line (0 is disabling)
     31  * Writing a non zero value enables the IRQ line.
     32  * Writing a zero value resets the IRQ.
    3233  * Reading a zero value indicates the completion of the transfer
    3334