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About EIM wait setting in i.MX6DL.

Question asked by Keita Nagashima on Dec 18, 2013
Latest reply on Dec 18, 2013 by Yuri Muhin

Dear Sir or Madam,


I have a question about EIM wait setting in i.MX6DL.

And I'd like to use the synchronous access on EIM.



Refer to EIM_CSnRCR1 field descriptions in MCIMX6SDLRM(Rev.1).

There is following description about RWSC(Read Wait State Control).

"start of an access"

Is it meaning of "The first rising-edge of BCLK"?



Refer to "Figure 22-12. SRD=1,BCD=0,BCS=0,RWSC=1,RADVA=0,RADVN=0,RFL=0,RL=0" in MCIMX6SDLRM(Rev.1).

When setting to RFL=1, where does the setting of RWSC correspond to in the Figure 22-12?

(It is difficult to understand Figure 22-12. It has mixed internal signal and external signals.)



Refer to Table 22-2 in MCIMX6SDLRM(Rev.1).

There is following description.

"NOTE: For burst devices, WAIT output should be configured to change one cycle before data is ready (before delay)"

This meaning is fixed 1 BCLK before data is ready, isn't it?