SLLU349 August 2022
This connector is used for communications and controls between the USB interface adapter and one or more I2C device(s). A description of each terminal point is shared in Table 3-1.
| Pin | Type | Description | |
|---|---|---|---|
| Name | NO. | ||
| PMBCTRL5/GPIO7 | 1 | I/O | Used as either the fifth PMBUS CONTROL line (output) or as GPIO pin 7 (input or output, with internal pullup enabled) |
| PMBCTRL4/GPIO6 | 2 | I/O | Used as either the fourth PMBUS CONTROL line (output) or as GPIO pin 6 (input or output, with internal pullup enabled) |
| PMBCTRL3/GPIO5 | 3 | I/O | Used as either the third PMBUS CONTROL line (output) or as GPIO pin 5 (input or output, with internal pullup enabled) |
| PMBCTRL2/GPIO4 | 4 | I/O | Used as either the second PMBUS CONTROL line (output) or as GPIO pin 4 (input or output, with internal pullup enabled) |
| +3.3V | 5 | PWR | This pin can provide a 3.3-V output power supply at up to 100 mA. Any target device or devices can use this power supply as long as the total current consumption is less than 100 mA. |
| Ground | 6 | GND | Common ground for the entire evaluation board |
| PMBCTRL1/GPIO3 | 7 | I/O | Used as either the first PMBUS CONTROL line (output) or as GPIO pin 3 (input or output, with internal pullup enabled) |
| PMBALERT/SMBALERT/GPIO2 | 8 | I/O | Used as either the ALERT line (input) for PMBUS or SMBUS communications, or as GPIO pin 2 (input or output, with internal pullup disabled, and with an external programmable pullup) |
| PMBC/SMBC/SCL/GPIO1 | 9 | I/O | Used as either the CLOCK line (output) for PMBUS or SMBUS or I2C communications, or as GPIO pin 1 (input or output, with internal pullup disabled, and with an external programmable pullup) |
| PMBD/SMBD/SDA/GPIO0 | 10 | I/O | Used as either the DATA line (input or output) for PMBUS or SMBUS or I2C communications, or as GPIO pin 0 (input or output, with internal pullup disabled, and with an external programmable pullup) |