About LPDDR2 Script Aid Options

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About LPDDR2 Script Aid Options

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tony_l_cai
Contributor III

Hi, All

       in LPDDR2 Script Aid,how can I fill in these blanks? some configuration options below:

PCB Parameters
DRAM DSE Setting - DQ/DQM (ohm)40
DRAM DSE Setting - CA/CTL (ohm)40
DRAM DSE Setting - CK (ohm)48
DRAM DSE Setting - DQS (ohm)40

And I have read the user guide for DDR3, but in this guide, no more details about these parms,just " SI design experience or simulation result ",please give  me more info , thanks!

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Yuri
NXP TechSupport
NXP TechSupport

  You may try to adjust drive strength settings experimentally, using different
options and memory test. Also, You may look at waveforms of the corresponding
signals, if they do not have voltage over-/under-shoots.


Have a great day,
Yuri

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