Inter-integrated circuit (I2C) interface
SDA
SCL
SMBA
842/1749
2
Figure 239. I
C block diagram for STM32F40x/41x
Data
Noise
control
filter
Clock
Noise
control
filter
Clock control
Register (CCR)
Control registers
(CR1&CR2)
Status registers
(SR1&SR2)
RM0090 Rev 18
Data register
Data shift register
Comparator
Own address register
Dual address register
PEC register
Control
logic
Interrupts
DMA requests & ACK
RM0090
PEC calculation
MS30035V1
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