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i.MX6 pad drive strength setting

Question asked by torus1000 on Apr 10, 2015
Latest reply on Apr 10, 2015 by igorpadykov

Hi,

Pad drive strength recommended 8mA on p2571 in i.MX6DQ RM rev2.0.

Which DSE setting is correct to drive 8mA @3.3V for SD4_CMD pad?

 

DSE=
001 150 Ohm @ 3.3V, 260 Ohm @ 1.8V
010 75 Ohm @ 3.3V, 130 Ohm @ 1.8V
011 50 Ohm @ 3.3V, 90 Ohm @ 1.8V
100 37 Ohm @ 3.3V, 60 Ohm @ 1.8V
101 30 Ohm @ 3.3V, 50 Ohm @ 1.8V
110 25 Ohm @ 3.3V, 40 Ohm @ 1.8V
111 20 Ohm @ 3.3V, 33 Ohm @ 1.8V

 

On th other hand, an IBIS model (gpiohv_ds001_sr000_mio:GPIO,3.3V,DSE=001)
shows Ioh@3.3=10.7mA.

 

Is it OK to set DSE=001 for 8mA current?

mx6q_ibis.png

Thanks,

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