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bandwidth of DDR2/mDDR-Interface on C6748

Andreas Martin
Intellectual 650 points

Hello,

has anybody out there informations/experiences about the possible bandwith of the DDR2 interface on the C6748?

For the 6713 device there is an application note about this topic:

http://focus.ti.com/general/docs/litabsmultiplefilelist.tsp?literatureNumber=spraa03

I need similar information for the 6748. Another point is the mDDR compared to the DDR2 bandwidth.

Thanks.

 

  • 0
    TI__Guru 62975 points

    Andreas,

    A similar document is planned for C6748, but it has not been published yet.  Generally speaking, stand-alone EDMA transfers between internal memory and DDR2 (@150MHz) can achieve throughput in the 350MB/s to 550MB/s range depending on transfer configurations.  This is for burst sizes in the 16-64 byte range and transfer sizes in the 512-4096 byte range.

    There is no significant difference in bandwidth between DDR2 and mDDR for the same operating frequency.

    -Tommy