Hello TI Expert
In I2C specification , there are tf item listed , the min tf = 12ns when in Fast mode.
But in AM62x MAIN_I2C port , the tf can't meet >12ns requirement.
Can we modify the I2C output slope in AM6204?
BR Jingcheng
BR Jingcheng
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Hello TI Expert
In I2C specification , there are tf item listed , the min tf = 12ns when in Fast mode.
But in AM62x MAIN_I2C port , the tf can't meet >12ns requirement.
Can we modify the I2C output slope in AM6204?
BR Jingcheng
BR Jingcheng
Hello Jingcheng
Thank you for the query.
Please read the below section of the data sheet that could answer your query.
7.11.5.12 I2C
You might want to use MCU_I2C0 or WKUP_I2C0 for this use case. Again, please read the I2C section.
Regards,
Sreenivasa
Hi Sreenivasa
Do you mean we can only add Capasitor at I2C termination side and can't modify the I2C driver stress to meet the spec?
BR Jingcheng
Hello Jingcheng
Thank you.
Please read the below exception in the above referenced section.
7.11.5.12 I2C
The device contains six multicontroller Inter-Integrated Circuit (I2C) controllers. Each I2C controller was
designed to be compliant to the Philips I2C-bus specification version 2.1. However, the device IOs are not
fully compliant to the I2C electrical specification. The speeds supported and exceptions are described per port
below:
Exceptions:
• The IOs associated with these ports are not compliant to the fall time requirements defined in the I2C
specification because they are implemented with higher performance LVCMOS push-pull IOs that were
designed to support other signal functions that could not be implemented with I2C compatible IOs.
Regards,
Sreenivasa
Hello Jingcheng
Can we modify the I2C slope at Sitara side?
This has been mentioned in the data sheet specifically for customers to consider this since we may not have a way to modify the slope internally.
Anyways let me check internally and updated.
Regards,
Sreenivasa