23.2.3 Output Drivers on Pads with MVIO

The pads on MVIO domain are equipped with various types of output drivers as listed in Table 23-3. These output drivers are automatically selected based on certain conditions and the module that is driving the output. Refer to “Electrical Specifications” chapter for voltage levels for the different output drivers.

Table 23-3. Output Drivers on MVIO Pads
Output Driver	V_DDIOx Operating Range	Driven By
Standard GPIO Driver⁽¹⁾	Standard 1.62V-5.5V	I²C module, PPS outputs, and I3C module (when additional SDA delay is used)
Standard GPIO Driver⁽¹⁾	Low voltage 0.95V-1.62V	Not functional
I3C Driver	Standard 1.62V-3.63V	I3C module (when no additional SDA delay is used)
I3C Driver	Low voltage 0.95V-1.62V	I3C module (when no additional SDA delay is used)
I²C Pull-down Driver	Standard 1.62V-5.5V	Not used
I²C Pull-down Driver	Low voltage 0.95V-1.62V	I²C module and I3C module (when additional SDA delay is used)
Note: The SLEW bits in the RxyFEAT register can be used to control the slew rate of the standard GPIO driver when driven by the I²C module only.

CAUTION:

If the user assigns the same address to both the I²C and I3C modules, it is possible that both the modules can attempt to drive the output together, thus resulting in an unpredictable outcome. It is highly recommended for the user to ensure that unique addresses be assigned to the I²C and I3C modules such that only one module responds to a particular address on the bus.