pca9547bs NXP Semiconductors, pca9547bs Datasheet - Page 11

• Manufacturer Part Number: pca9547bs
• Description: Pca9547 8-channel I2c-bus Multiplexer With Reset
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PCA9547_2
Product data sheet
7.4 Bus transactions
Data is transmitted to the PCA9547 control register using the Write mode as shown in
Figure
Data is read from PCA9547 using the Read mode as shown in
Fig 12. Write control register
Fig 13. Read control register
SDA
SDA
12.
START condition
START condition
S
S
1
1
1
1
slave address
slave address
Rev. 02 — 12 September 2006
1
1
0
0
A2
A2
A1
A1
A0
A0
R/W
R/W
0
1
A
A
acknowledge
from slave
acknowledge
from slave
8-channel I
X
X
X
X
X
X
control register
control register
2
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
C-bus multiplexer with reset
X
X
Figure
B3
B3
B2
B2
no acknowledge
PCA9547
13.
B1
acknowledge
B1
from master
from slave
STOP condition
STOP condition
B0
B0
last byte
002aaa989
002aaa988
NA
A
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P
P