Inter-integrated circuit (I2C) interface UM0306
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15.5 Interrupt requests
Note: 1 SB, ADDR, ADD10, STOPF, BTF, RxNE and TxE are logically ORed on the same interrupt
channel.
2 BERR, ARLO, AF, OVR, PECERR, TIMEOUT and SMBALERT are logically ORed on the
same interrupt channel.
Table 46. I
2
C Interrupt requests
Interrupt Event
Event
Flag
Enable
Control
Bit
Start bit sent (Master) SB
ITEVFEN
Address sent (Master) or Address matched (Slave) ADDR
10-bit header sent (Master) ADD10
Stop received (Slave) STOPF
Data Byte Transfer Finished BTF
Receive buffer not empty RxNE
ITEVFEN and
ITBUFEN
Transmit buffer empty TxE
Bus error BERR
ITERREN
Arbitration loss (Master) ARLO
Acknowledge failure AF
Overrun/Underrun OVR
PEC error PECERR
Timeout/Tlow error TIMEOUT
SMBus Alert SMBALERT