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MK64 :  How to change the Flexbus hold timing

Question asked by koichi sakagami on Mar 23, 2016
Latest reply on Mar 23, 2016 by xiangjun.rong

Dear community,

I consider the Flexbus read timing .

 

In figure 13. FlexBus read timing diagram of K64P144M120SF5 rev6,About Flexbus timing,
  the time from CLK_RISE to FB_OE (control signals) is covered by the FB3 spec,
  the time from CLK_RISE to input Date hold time spec is FB5.

      FB3 is 0 ns (Min).
      FB5 is 0.5 ns  (Min).

 

I connect the flash memory to Flexbus.
The flash memory AC timing is as follows.
    OE# to output transition is 0 ns (Min).

 

In the case of without including board delay, the Hold time is not enough for MCU read timing.

 

[Question]
Is it possible to ensure the hold time by setting a register (Chip Select Control Register ...) ?
I hope to use in "AA = 1" (Auto-Acknowledge Enable ) setting .

 

    Best Regards,
     Koichi Sakagami

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