SLLA565 September 2021 TUSB1044
The VIO_SEL selects I/O voltage levels for the two-level GPIO configuration pins and the I2C interface as shown in Table 2-3.
| Level | Setting |
|---|---|
| 0 | 3.3-V configuration I/O voltage, 3.3-V I2C interface (Default) |
| R | 3.3-V configuration I/O voltage, 1.8-V I2C interface |
| F | 1.8-V configuration I/O voltage, 3.3-V I2C interface |
| 1 | 1.8-V configuration I/O voltage, 1.8-V I2C interface |