Question about FlexSPI Output Timing : Data Output Valid Time

[adam_smartind]

In the i.MX 8M Mini datasheet, the output timing of FlexSPI is illustrated in Figure 39/40 and the time between SCK edge and data valid is marked as "T_DVO". 

(https://www.nxp.com.cn/docs/en/data-sheet/IMX8MMIEC.pdf)

And apparently this is the data output valid time concept.

But in the related data Table 51/52 no such data with the name "T_DVO" is listed. Instead the "T_DHO" which is the data output hold time is given.

In practical design verification procedure, the T_DVO (output valid time) is very crucial for the calculation of the setup time of the FlexSPI's link partner.

So anybody can share the exact number in nanosecond of this output valid time of the FlexSPI I/F?

Many thanks.

[Yuri · Accepted solution]

@adam_smartind 
Hello,

   tDVO (max) = (CLK_Period) / 2 - tDSO

Regards,
Yuri.

[adam_smartind]

Thanks Yuri.

This equation gives a nice match to the timing diagram in the datasheet.