13.1.2
Block Diagram
Figure 13.2 shows a block diagram of the I2C bus interface.
STCR
ICCR
ICMR
ICSR
øP
PS
SCL
Clock
control
Noise
canceler
Bus state
decision
circuit
Arbitration
decision
circuit
Output data
control
SDA
ICDR
circuit
Noise
canceler
Address
comparator
SAR
Interrupt
request
Interrupt
generator
Legend:
ICCR: I2C bus control register
ICMR: I2C bus mode register
ICSR: I2C bus status register
ICDR: I2C bus data register
SAR: Slave address register
PS:
Prescaler
STCR: Serial timer control register
Figure 13.2 Block Diagram of I2C Bus Interface
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