CXA1734S
2
I C BUS Signal
2
There are two I C signals, SDA (Serial DATA) and SCL (Serial CLOCK) signal. SDA is a bidirectional signal.
• Accordingly there are 3 values outputs, H, L and HIZ.
H
L
HIZ
L
2
• I C transfer begins with Start Condition and ends with Stop Condition.
Start Condition S
SDA
Stop Condition P
SCL
2
• I C data Write (Write from I2C controller to the IC)
L during Write
MSB
1
MSB
1
LSB
8
SDA
SCL
HIZ
HIZ
2
3
4
5
6
7
8
9
9
S
Address
HIZ
ACK
Sub Address
ACK
MSB
LSB
HIZ
1
8
9
1
8
9
DATA(n)
ACK
DATA(n+1)
ACK
DATA(n+2)
HIZ
HIZ
Data can be transferred in 8-bit units
to be set as required.
8
9
1
8
9
P
Sub address is incremented
automatically.
DATA
ACK
DATA
ACK
—26—
SONY [ SONY CORPORATION ]
