Figure 282. Transfer Sequence Flow For I2C Master Receiver For N≤255 Bytes - STMicroelectronics STM32WLEx Reference Manual

RM0461 Inter-integrated circuit (I2C) interface
Figure 282. Transfer sequence flow for I2C master receiver for N≤255 bytes
Master reception
Master initialization
NBYTES = N
AUTOEND = 0 for RESTART; 1 for STOP
Configure slave address
Set I2C_CR2.START
No
I2C_ISR.RXNE
=1?
Yes
Read I2C_RXDR
No
NBYTES
received?
Yes
Yes
I2C_ISR.TC =
1?
Set I2C_CR2.START with
No
slave addess NBYTES ...
End
MS19863V2
RM0461 Rev 5 977/1306
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