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From 01/12/2026 to 02/10/2026

02/10/2026

DR 11:55 PM Firmware: RE: Clock EN signal and I2C Dual purpose pin
Oh, I have an old version of the datasheet (August 8 2024) that says this. Grabbing the updated version now from your site. I think that clears up the issue, thanks! Dean Rasmussen
MF 11:09 PM Firmware: RE: Clock EN signal and I2C Dual purpose pin
Hi Dean,
Pin AH2 is our CLKUSR enable pin. This does not leave the SOM and only goes to the enable pin of the 100 MHz oscillator. The output of the oscillator is then fed into Pin Y15. If you did not want to use the 100 MHz oscillator...
Mike Fiorenza
DR 10:49 PM Firmware: Clock EN signal and I2C Dual purpose pin
Regarding FPGA ball location AH2 "SCL_1V8". From my understanding, this pin can be driven low to enable the 100MHz CLKUSR on Y15. This is my global ref clock input.
This pin is labeled as "SCL_1V8" (I/O signal used for I2C).
Is it...
Dean Rasmussen
 

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