About Hold Delay of QuadSPI configuration parameters

cancel
Showing results for 
Search instead for 
Did you mean: 

About Hold Delay of QuadSPI configuration parameters

Jump to solution
387 Views
goto11
Contributor III

Hello,

Isn't the Hold Delay of 6.6.6.3 (QuadSPI configuration parameters) in the i.MX 7Dual Applications Processor Reference Manual the TDH setting of 10.2.14.3 (QuadSPIx_FLSHCR)?

If not TDH, where can I find a description of Hold Delay?

best regards
Goto

Labels (1)
0 Kudos
1 Solution
359 Views
Yuri
NXP TechSupport
NXP TechSupport

@goto11 
Hello,

    Recommended QuadSPIx_FLSHCR [TDH] settings [should be set to 01
in DDR mode (DDR_EN=1) and set to 00 in SDR mode (DDR_EN=0)]  corresponds
QuadSPI configuration boot parameter Hold Delay. 

Regards,
Yuri.

View solution in original post

0 Kudos
3 Replies
382 Views
Yuri
NXP TechSupport
NXP TechSupport

@goto11 
Hello,

   Hold Delay for quarter cycle is used for DDR mode.

Regards,
Yuri.

0 Kudos
377 Views
goto11
Contributor III

Hello,

 

Does Hold Delay mean that the quarter cycle is used in DDR mode, which means that it is set to the TDH setting "01" of 10.2.14.3 (QuadSPIx_FLSHCR)?

If so, should it be set to "01" in DDR mode (DDR_EN = 1)?

Regards,
Goto

0 Kudos
360 Views
Yuri
NXP TechSupport
NXP TechSupport

@goto11 
Hello,

    Recommended QuadSPIx_FLSHCR [TDH] settings [should be set to 01
in DDR mode (DDR_EN=1) and set to 00 in SDR mode (DDR_EN=0)]  corresponds
QuadSPI configuration boot parameter Hold Delay. 

Regards,
Yuri.

0 Kudos