STMicroelectronics STM32WL5 Series

RM0453 Rev 5 1065/1450
RM0453 Inter-integrated circuit (I2C) interface
1113
Figure 284. Transfer sequence flow for I2C slave transmitter, NOSTRETCH = 1
MS19852V2
Slave initialization
Slave
transmission
Optional: Set I2C_ISR.TXE = 1
and I2C_ISR.TXIS=1
Write I2C_TXDR.TXDATA
I2C_ISR.STOPF
=1?
No
Yes
I2C_ISR.TXIS
=1?
Yes
No
Set I2C_ICR.STOPCF