Would you help me about why this simluation result happened?

[xiaowei_li_3787]

Hi

I am using the flash chips of CYPRESS, S25FL128SAGNFI000, and now I am doing the simulation of the QPP and QOR command.

But  there comes the result that didn't go as my desgin.

Would you tell me why this happened?

The details:

1, I have already programed the SR1 as [00H] and CR as [82H], which the latency cycles is 8, and Quad mode.

2, After power up the chip(in simulation), I writed the SR1 and CR, and read them, which is correct as the input, as the figure 1.

3, And then I read the 32 bits data of address 020000H, and the data would be FFFFFFFF, which is correct, as the figure 1.

4, Then I did the QPP command, and the address is 020000H too, and the write data is 12345678, and the SI/SO/HOLD/WP is correct, as the figure 2.

5, But then I did the QOR command, and the address is 020000H, and the read data is FFFFFFFF, which is not my input, as the figure 2

And I can't find why this happened, would you help me about that?

Here are the figures:

1,

2,