On the I2C Bus website, find the maximum recommended capacitance for an I2C bus according to the standard. Explain how adjusting termination resistance (Rp) can help manage higher capacitance, and identify the recommended wiring practices to minimize capacitance for reliable I2C communication.
Navigate to the 'I2C Primer' section. Click on the 'Termination Versus Capacitance' link within the 'I2C Primer' chapters. Locate the maximum capacitance value specified by the I2C standard. Identify how adjusting termination resistance (Rp) can affect I2C signals when dealing with high capacitance. Find the recommended wiring practice to minimize capacitance.
State that the I2C standard limits total bus capacitance (Cp) to a maximum value of 400 pF. Explain that adjusting termination resistance (Rp) can help operate I2C buses with higher capacitance, even if not recommended by the standard. State that I2C connections should always be as short as possible and connected by a suitable wiring pattern (c.f. I2C specification, section 17.3) to minimize capacitance.