| I2C_IT_SMBALERT | SMBus Alert flag |
| I2C_IT_TIMEOUT | Timeout or Tlow error flag |
| I2C_IT_PECERR | PEC error in reception flag |
| I2C_IT_OVR | Overrun/Underrun flag (Slave mode) |
| I2C_IT_AF | Acknowledge failure flag |
| I2C_IT_ARLO | Arbitration lost flag (Master mode) |
| I2C_IT_BERR | Bus error flag |
| I2C_IT_TXE | Data register empty flag (Transmitter) |
| I2C_IT_RXNE | Data register not empty (Receiver) flag |
| I2C_IT_STOPF | Stop detection flag (Slave mode) |
| I2C_IT | ADD10 10-bit header sent flag (Master mode) |
| I2C_IT_BTF | Byte transfer finished flag |
| I2C_IT_ADDR | Address sent flag (Master mode) “ADSL”
Address matched flag (Slave mode) ”ENDAD” |
| I2C_IT_SB | Start bit flag (Master mode) |
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