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XQSHEN's avatar
XQSHEN
Icon for Occasional Contributor rankOccasional Contributor
6 years ago
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Question about UniPHY with DDR2

1) avl_size only has 3 bits, how to set burstcount = 8? 2) during ddr2 simulation using intel model, there are two many avl_ready = 0 even I set avl_size = 3'd4; It significantly impact the data ...
  • ybin's avatar
    ybin
    6 years ago

    Hello,

    avl_size is generated according to the maximum AVMM burst length, the default length is 4, this is why you will find the signal is only 3bits. You can enlarge burst length is you want to improve efficiency of controller.

XQSHEN's avatar
XQSHEN
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Should that setting impact the burst length of below?

ybin's avatar
ybin
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

The setting you mentioned doesn't impact avl_size, but it can impact efficiency, the default value is 8, no need to modify it. You can just modify maximum AVMM burst length value.

  • XQSHEN's avatar
    XQSHEN
    Icon for Occasional Contributor rankOccasional Contributor
    6 years ago

    Thanks, it's clear now. You can close this topic.

    • ybin's avatar
      ybin
      Icon for Occasional Contributor rankOccasional Contributor
      6 years ago

      I’m glad that your question has been addressed, I now transition this thread to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you.