16.11 I²C Pad Control

For this family of devices, the I²C specific pads are available on RA1 and RA2 (8-pin devices), RB4, RB5, RB6, and RB7 (20-pin devices), and RC0, RC1, RC4, and RC5 (14/16-pin devices) 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.