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GPIO DC/AC timing parameters in Schmitt trigger mode

Question asked by ko-hey on Aug 25, 2015
Latest reply on Aug 26, 2015 by igorpadykov

Hi all

 

 

I have question about GPIO specification.

 

I doubt that the DC/AC timing parameters are different.

Because the behavior is different in CMOS mode and Schmitt trigger mode in my board.

So I want to confirm the following.

 

 

 

1.

Does the DC parameter that is shown in P39 of IMX6SDLAEC is for CMOS mode ?

http://cache.freescale.com/files/32bit/doc/data_sheet/IMX6SDLAEC.pdf

 

 

2.

Are there any different DC and AC parameter in CMOS mode and schmitt trigger mode ?

 

 

3.

In my understanding, i.MX becomes slower to recognize a "high" level in schmitt trigger mode than CMOS mode.

Because of the delay, is there possibility that i.MX can't latch the data correctly ?

 

 

 

 

ko-hey

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