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Mismatch of Output Buffer Impedance and Drive Strength Field

Question asked by ko-hey on Jan 6, 2017
Latest reply on Jan 10, 2017 by ko-hey

Hi all

 

Let me confirm Output Buffer Impedance and Drive Strength Field with i.MX6UL.

I think there are some wrong description about Output Buffer Impedance and Drive Strength Field.

 

I'm refering the following documents.
IMX6ULCEC Rev. 1, 04/2016
IMX6ULRM Rev. 1, 04/2016

 

Here is a table which shows the relationship between Output Buffer Impedance and DSE in IMX6ULCEC.

 

On the other hand, here is a table which shows the setting of DSE and the impedance value in IMX6ULRM.

 

Comparing the above, I think the table 33 of IMX6ULCEC is for OVDD = 3.3V and table 34 is for OVDD = 1.8V.

Am I correct ?

 

 

Ko-hey

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