14.2.2 Port List
The following table lists the various I2C signals. The letter X is used as a placeholder for 0 or 1 in register and signal descriptions.
| Name | Type | Polarity | Description |
|---|---|---|---|
| I2C_X_SCL | Input/Output | High | Serial clock |
| I2C_X_SDA | Input/Output | High | Serial data |
| I2C_X_SMBALERT_NI | Input | High | Input interrupt signal; used in Master mode to monitor whether the slave wants to force communication with the master. |
| I2C_X_SMBALERT_NO | Output | High | Output interrupt signal; used in Slave mode if the slave wants to force communication with the master. |
| I2C_X_SMBSUS_NI | Input | High | Input Suspend Mode signal; used in I2C Slave mode. |
| I2C_X_SMBSUS_NO | Output | High | Output Suspend Mode signal; used in I2C Master mode. |