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LS1046 QSPI setup time isssue at input timing

Question asked by Chen Jacky on Sep 18, 2018
Latest reply on Oct 22, 2018 by andrei.skok

Hi,

We found the QSPI setup time isssue at input timing. It can't meet spec.

LS1046 SDR mode QuadSPI input and output timing

Setup time for incoming data tNIIVKH 8.6 — ns
Hold time requirement for incoming data tNIIXKH 0.4 — ns

 

Our measurement result: the clock frequence is 50MHz.

At the same time, we measured at the LS1046RDB-RevB that has same issue.

But we found the clock is 70MHz, the Setup time value is 3.88 ns.

Do you have any comment?

Thanks.

2018/9/19

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