Changes between Version 1 and Version 2 of Component/Vci Mwmr Dma


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Timestamp:
Mar 10, 2015, 1:16:40 PM (9 years ago)
Author:
alain
Comment:

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  • Component/Vci Mwmr Dma

    v1 v2  
    1010 * on a TO_COPROC port the coprocessor can request to read a vector of 32 bits words.
    1111 * on a FROM_COPROC port the coprocessor can request to write a vector of 32 bits words. 
    12 Each TO_COPROC or FROM_COPROC port define a communication channel to a memory buffer.
    13 Each channel contains a private hardware fifo (two 32 bits slots).
     12Each TO_COPROC or FROM_COPROC port define a communication channel to a memory buffer.
    1413The number of TO_COPROC and FROM_COPROC channels, are constructor parameters.
    1514The total number of channels cannot be larger than 16.
     
    1716On the VCI side, this component is both a VCI target and a VCI initiator:
    1817 * It is addressed as a target to be configured.
    19  * It is acting as an initiator to do the data transfers
     18 * It is acting as an initiator to do the requested data transfers
    2019It makes the assumption that the VCI RDATA & WDATA fields have 32 bits, but the VCI address field can have up to 64 bits. The VCI TRDID and PKTID fields must have at least 4 bits.
    2120