Dear community,
We design the custom board .
We need information about EMI pin behavior.
The EMI pin is EMI_ODT1, EMI_CE1N.
The register setting is as follows.
HW_PINCTRL_MUXSELxx = 11 ( function disable )
PINCTRL Bank 5/6 Pad Keeper Disable Register = 0 ( enable the internal keeper)
Question1.
Is the internal keeper function enabled ?
Question2.
If the "PINCTRL Bank 5/6 Pad Keeper Disable Register" set as "1" ( disable the internal keeper),
then, Is the pin state high impedance ?
Best Regards,
Koichi Sakagami
Solved! Go to Solution.
1.
The internal keeper function is enabled.
According to Figure 9-1 (Pad Diagram) of the i.MX28 Reference Manual
the internal keeper can be enabled / disabled separately, without reference
to multiplexing options.
2.
From section 9.1 (Pin Control and GPIO Overview) :
“All EMI pins' internal keepers can be disabled to allow them to change to
a high impedance state […]”.
Have a great day,
Yuri
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Note: If this post answers your question, please click the Correct Answer button. Thank you!
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1.
The internal keeper function is enabled.
According to Figure 9-1 (Pad Diagram) of the i.MX28 Reference Manual
the internal keeper can be enabled / disabled separately, without reference
to multiplexing options.
2.
From section 9.1 (Pin Control and GPIO Overview) :
“All EMI pins' internal keepers can be disabled to allow them to change to
a high impedance state […]”.
Have a great day,
Yuri
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------