LS1046 QSPI setup time isssue at input timing

[chenjacky]

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

[andrei_skok]

We can not guarantee LS1046A to work properly if HW specifications are violated.

You have to meet LS1046A HW specifications.