16.11 I²C Pad Control

For this family of devices, the I²C specific pads are available on RB1, RB2, RC3, and RC4 (28/40/44-pin devices), and RD0 and RD1 (40/44-pin devices only) pins. The I²C characteristics of each of these pins is controlled by the RxyI2C registers. These characteristics include enabling I²C specific slew rate (over standard GPIO slew rate), selecting internal pull-ups for I²C pins, and selecting appropriate input threshold as per SMBus specifications.