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Dear TI,
I want to drive a high side LINK LED with pin30 (LED0/Strap2) pin of ETHPHY in enhanced mode directly. As far as I understood the data sheet PHY chip will detect the pull-up LED (~200 Ohm, green LED to +3V3) and will drive it with active low output. The same pin is a configuration input by the way, default 0.
I suppose the LED on supply side will be seen as strap to high. Am I right?
Best regards
Kalman
Hi Kalman,
If you pull up pin30 to HIGH, the LED polarity will be active low in enhanced mode. The strap for this pin will also be seen as high.
The LED polarity can be overridden through register writes, see the table below from the datasheet.
Best regards,
Melissa