CXA2094Q
I2C BUS Control Signal
SDA
tBUF
tF
tR
tHD: STA
SCL
tSU: STA
tSU: STO
tHIGH
P
Sr
P
S
tLOW
tHD: STA
tSU: DAT
tHD: DAT
I2C BUS Signal
There are two I2C signals, SDA (Serial DATA) and SCL (Serial CLOCK) signals. SDA is a bidirectional signal.
• Accordingly there are 3 values outputs, H, L and HIZ.
H
L
HIZ
L
• I2C transfer begins with Start Condition and ends with Stop Condition.
Start Condition S
Stop Condition P
SDA
SCL
– 27 –