We have fixed 2.2 kΩ pull-ups on the PGY-I3C-EX-PD. The values for the pull-ups are fixed and cannot be changed. That said, users do have the provision to either enable or disable them by using the “Termination” option in the software. Setting Termination to “OFF” will disable the pull-ups on the PGY-I3C-EX-PD unit and setting it to “ON” will enable them.