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?