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DLPC3435: eDRAM size

Stephen Craig
Intellectual 440 points
Part Number: DLPC3435
Other Parts Discussed in Thread: DLPC3430

The DLPC3435 contains a DRAM to use as "embedded frame memory."  What is the size of this memory?  It doesn't seem to be in the DLPC3435 datasheet. 

Regards,
Stephen Craig

  • 0
    TI__Mastermind 28005 points

    Stephen,

    Have you tried checking out the DLP2010EVM reference design? It uses the DLPC3430, but you can use it as a comparison to get an idea for how the DRAM part fits into the system:
    http://www.ti.com/tool/tida-00325

    I hope this helps.

    Best Regards,
    Philippe Dollo

  • 0 in reply to Philippe Dollo
    Intellectual 440 points
    Hi Philippe,

    I have the EVM reference design, and I'm using it to help with the layout of my board. However, I wasn't able to find anything in the reference design that tells me the size of that RAM either.

    The 1-frame latency leads me to believe that it is a two frame buffer, so that it can buffer one full incoming frame while it is projecting the last full frame that it received. Is this the case?

    I also want to mention how much we appreciate all the help. I've been asking a lot of questions, and you've been getting back to me very quickly. I and everyone on my design team greatly appreciate it. It has really helped us move our project along.

    Thanks-again,
    Stephen Craig
  • 0 in reply to Stephen Craig
    TI__Mastermind 28005 points
    Stephen,

    Not a problem. You are correct that the DRAM is a two-frame buffer.

    Feel free to inquire if you have any further trouble. Glad to be of assistance.

    Best Regards,
    Philippe Dollo