ARM9 STR9 EMI external DMA request

Posted on March 28, 2007 at 08:15

This topic has been closed for replies.

Visitor II

Posted on May 17, 2011 at 09:40

Hi,

I would like to transfer data from an external memory and internal memory from/to a single external memory location in a FPGA.

These data contain modified camera data in CIF format and compressed encrypted video data to a optical data link.

However, I would like to let the FPGA start a burst or single word transfer from/to external PSRAM location into/from FPGA adress space.

There are 2 possible external DMA request pins.

How do they work? level/edge triggered? falling/rising/low/high?

What are the timings? Is there a spec anywhere?

What is the max. speed at 96 MHz? etc.

Please help me!

regards,

Gerhard.

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