RM0390 Rev 4 741/1328
RM0390 Fast-mode Plus Inter-integrated circuit (FMPI2C) interface
758
23.6 FMPI2C interrupts
The table below gives the list of FMPI2C interrupt requests.
Depending on the product implementation, all these interrupts events can either share the
same interrupt vector (FMPI2C global interrupt), or be grouped into 2 interrupt vectors
(FMPI2C event interrupt and FMPI2C error interrupt). Refer to Table 38: Vector table for
STM32F446xx on page 238 for details.
Figure 271. FMPI2C interrupt mapping diagram
Table 139. FMPI2C Interrupt requests
Interrupt event Event flag
Event flag/Interrupt
clearing method
Interrupt enable
control bit
Receive buffer not empty RXNE Read FMPI2C_RXDR register RXIE
Transmit buffer interrupt status TXIS Write FMPI2C_TXDR register TXIE
Stop detection interrupt flag STOPF Write STOPCF=1 STOPIE
Transfer Complete Reload TCR
Write FMPI2C_CR2 with
NBYTES[7:0]
0
TCIE
Transfer complete TC Write START=1 or STOP=1
Address matched ADDR Write ADDRCF=1 ADDRIE
NACK reception NACKF Write NACKCF=1 NACKIE
Bus error BERR Write BERRCF=1
ERRIE
Arbitration loss ARLO Write ARLOCF=1
Overrun/Underrun OVR Write OVRCF=1
PEC error PECERR Write PECERRCF=1
Timeout/t
LOW
error TIMEOUT Write TIMEOUTCF=1
SMBus Alert ALERT Write ALERTCF=1
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